[PATCH bpf-next v3 00/24] Local kptrs, BPF linked lists

[PATCH bpf-next v3 00/24] Local kptrs, BPF linked lists

[Kumar Kartikeya Dwivedi]

This series introduces user defined BPF objects, by introducing the idea
of local kptrs. These are kptrs (strongly typed pointers) that refer to
objects of a user defined type, hence called "local" kptrs. This allows
BPF programs to allocate their own objects, build their own object
hierarchies, and use the basic building blocks provided by BPF runtime
to build their own data structures flexibly.

Then, we introduce the support for single ownership BPF linked lists,
which can be put inside BPF maps, or local kptrs, and hold such
allocated local kptrs as elements. It works as an instrusive collection,
which is done to allow making local kptrs part of multiple data
structures at the same time in the future.

The eventual goal of this and future patches is to allow one to do some
limited form of kernel style programming in BPF C, and allow programmers
to build their own complex data structures flexibly out of basic
building blocks.

The key difference will be that such programs are verified to be safe,
preserve runtime integrity of the system, and are proven to be bug free
as far as the invariants of BPF specific APIs are concerned.

One immediate use case that will be using the entire infrastructure this
series is introducing will be managing percpu NMI safe linked lists
inside BPF programs.

The other use case this will serve in the near future will be linking
kernel structures like XDP frame and sk_buff directly into user data
structures (rbtree, pifomap, etc.) for packet queueing. This will follow
single ownership concept included in this series.

The user has complete control of the internal locking, and hence also
the batching of operations for each critical section.

The features are:
- Local kptrs - User defined kernel objects.
- bpf_obj_new, bpf_obj_drop to allocate and free them.
- Single ownership BPF linked lists.
  - Support for them in BPF maps.
  - Support for them in local kptrs.
- Global spin locks.
- Spin locks inside local kptrs.

Some other notable things:
- Completely static verification of locking.
- Kfunc argument handling has been completely reworked.
- Argument rewriting support for kfuncs.
- Search pruning now understands non-size precise registers.
- A new bpf_experimental.h header as a dumping ground for these APIs.

Any functionality exposed in this series is NOT part of UAPI. It is only
available through use of kfuncs, and structs that can be added to map value may
also change their size or name in the future. Hence, every feature in this
series must be considered experimental.

Follow-ups:
-----------
 * Support for kptrs (local and kernel) in local storage and percpu maps + kptr tests
 * Fixes for helper access checks rebasing on top of this series

Next steps:
-----------
 * NMI safe percpu single ownership linked lists (using local_t protection).
 * Lockless linked lists.
 * Allow RCU protected local kptrs. This then allows RCU protected list lookups,
   since spinlock protection for readers does not scale.
 * Introduce explicit RCU read sections (using kfuncs).
 * Introduce bpf_refcount for local kptrs, shared ownership.
 * Introduce shared ownership linked lists.
 * Documentation.

Changelog:
----------
 v2 -> v3
 v2: https://lore.kernel.org/bpf/20221013062303.896469-1-memxor@gmail.com

  * Add ack from Dave for patch 5
  * Rename btf_type_fields -> btf_record, btf_type_fields_off ->
    btf_field_offs, rename functions similarly (Alexei)
  * Remove 'kind' component from contains declaration tag (Alexei)
  * Move bpf_list_head, bpf_list_node definitions to UAPI bpf.h (Alexei)
  * Add note in commit log about modifying btf_struct_access API (Dave)
  * Downgrade WARN_ON_ONCE to verbose(env, "...") and return -EFAULT (Dave)
  * Add type_is_local_kptr wrapper to avoid noisy checks (Dave)
  * Remove unused flags parameter from bpf_kptr_new (Alexei)
  * Reword comment in ref_obj_id_set_release_on_unlock (Dave)
  * Fix return type of ref_obj_id_set_release_on_unlock (Dave)
  * Introduce is_bpf_list_api_kfunc to dedup checks (Dave)
  * Disallow BPF_WRITE to untrusted local kptrs
  * Add details about soundness of check_reg_allocation_locked logic
  * List untrusted local kptrs for PROBE_MEM handling

 v1 -> v2
 v1: https://lore.kernel.org/bpf/20221011012240.3149-1-memxor@gmail.com

  * Rebase on bpf-next to resolve merge conflict in DENYLIST.s390x
  * Fix a couple of mental lapses in bpf_list_head_free

 RFC v1 -> v1
 RFC v1: https://lore.kernel.org/bpf/20220904204145.3089-1-memxor@gmail.com

  * Mostly a complete rewrite of BTF parsing, refactor existing code (Kartikeya)
  * Rebase kfunc rewrite for bpf-next, add support for more changes
  * Cache type metadata in BTF to avoid recomputation inside verifier (Kartikeya)
  * Remove __kernel tag, make things similar to map values, reserve bpf_ prefix
  * Rename bpf_kptr_new -> bpf_obj_new, bpf_kptr_drop -> bpf_obj_drop (Alexei)
  * Rename precision state enum values (Alexei)
  * Drop explicit constructor/destructor support (Alexei)
  * Rewrite code for constructing/destructing objects and offload to runtime
  * Minimize duplication in bpf_map_value_off_desc handling (Alexei)
  * Expose global memory allocator (Alexei)
  * Address other nits from Alexei
  * Split out local kptrs in maps, more kptrs in maps support into a follow up

Links:
------
 * Dave's BPF RB-Tree RFC series
   v1 (Discussion thread)
     https://lore.kernel.org/bpf/20220722183438.3319790-1-davemarchevsky@fb.com
   v2 (With support for static locks)
     https://lore.kernel.org/bpf/20220830172759.4069786-1-davemarchevsky@fb.com
 * BPF Linked Lists Discussion
   https://lore.kernel.org/bpf/CAP01T74U30+yeBHEgmgzTJ-XYxZ0zj71kqCDJtTH9YQNfTK+Xw@mail.gmail.com
 * BPF Memory Allocator from Alexei
   https://lore.kernel.org/bpf/20220902211058.60789-1-alexei.starovoitov@gmail.com
 * BPF Memory Allocator UAPI Discussion
   https://lore.kernel.org/bpf/d3f76b27f4e55ec9e400ae8dcaecbb702a4932e8.camel@fb.com

Kumar Kartikeya Dwivedi (24):
  bpf: Document UAPI details for special BPF types
  bpf: Allow specifying volatile type modifier for kptrs
  bpf: Clobber stack slot when writing over spilled PTR_TO_BTF_ID
  bpf: Fix slot type check in check_stack_write_var_off
  bpf: Drop reg_type_may_be_refcounted_or_null
  bpf: Refactor kptr_off_tab into btf_record
  bpf: Consolidate spin_lock, timer management into btf_record
  bpf: Refactor map->off_arr handling
  bpf: Support bpf_list_head in map values
  bpf: Introduce local kptrs
  bpf: Recognize bpf_{spin_lock,list_head,list_node} in local kptrs
  bpf: Verify ownership relationships for user BTF types
  bpf: Support locking bpf_spin_lock in local kptr
  bpf: Allow locking bpf_spin_lock global variables
  bpf: Rewrite kfunc argument handling
  bpf: Drop kfunc bits from btf_check_func_arg_match
  bpf: Support constant scalar arguments for kfuncs
  bpf: Teach verifier about non-size constant arguments
  bpf: Introduce bpf_obj_new
  bpf: Introduce bpf_obj_drop
  bpf: Permit NULL checking pointer with non-zero fixed offset
  bpf: Introduce single ownership BPF linked list API
  selftests/bpf: Add __contains macro to bpf_experimental.h
  selftests/bpf: Add BPF linked list API tests

 Documentation/bpf/bpf_design_QA.rst           |   44 +
 Documentation/bpf/kfuncs.rst                  |   30 +
 include/linux/bpf.h                           |  250 ++-
 include/linux/bpf_verifier.h                  |   22 +-
 include/linux/btf.h                           |   77 +-
 include/linux/filter.h                        |    8 +-
 include/uapi/linux/bpf.h                      |   10 +
 kernel/bpf/arraymap.c                         |   30 +-
 kernel/bpf/bpf_local_storage.c                |    2 +-
 kernel/bpf/btf.c                              | 1205 +++++++------
 kernel/bpf/core.c                             |   14 +
 kernel/bpf/hashtab.c                          |   38 +-
 kernel/bpf/helpers.c                          |  141 +-
 kernel/bpf/local_storage.c                    |    2 +-
 kernel/bpf/map_in_map.c                       |   19 +-
 kernel/bpf/syscall.c                          |  401 +++--
 kernel/bpf/verifier.c                         | 1504 ++++++++++++++---
 net/bpf/bpf_dummy_struct_ops.c                |   14 +-
 net/core/bpf_sk_storage.c                     |    4 +-
 net/core/filter.c                             |   34 +-
 net/ipv4/bpf_tcp_ca.c                         |   13 +-
 net/netfilter/nf_conntrack_bpf.c              |   17 +-
 tools/include/uapi/linux/bpf.h                |   10 +
 tools/testing/selftests/bpf/DENYLIST.s390x    |    1 +
 .../testing/selftests/bpf/bpf_experimental.h  |   63 +
 .../bpf/prog_tests/kfunc_dynptr_param.c       |    2 +-
 .../selftests/bpf/prog_tests/linked_list.c    |   79 +
 .../testing/selftests/bpf/progs/linked_list.c |  330 ++++
 tools/testing/selftests/bpf/verifier/calls.c  |    4 +-
 .../selftests/bpf/verifier/ref_tracking.c     |    4 +-
 30 files changed, 3184 insertions(+), 1188 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/bpf_experimental.h
 create mode 100644 tools/testing/selftests/bpf/prog_tests/linked_list.c
 create mode 100644 tools/testing/selftests/bpf/progs/linked_list.c


base-commit: 3a07dcf8f57b9a90b1c07df3e9091fd04baa3036
-- 
2.38.1

[PATCH bpf-next v3 01/24] bpf: Document UAPI details for special BPF types

[Kumar Kartikeya Dwivedi]

The kernel recognizes some special BPF types in map values or local
kptrs. Document that only bpf_spin_lock and bpf_timer will preserve
backwards compatibility, and kptr will preserve backwards compatibility
for the operations on the pointer, not the types supported for such
kptrs.

For local kptrs, document that there are no stability guarantees at all.

Finally, document that 'bpf_' namespace is reserved for adding future
special fields, hence BPF programs must not declare types with such
names in their programs and still expect backwards compatibility.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 Documentation/bpf/bpf_design_QA.rst | 44 +++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/Documentation/bpf/bpf_design_QA.rst b/Documentation/bpf/bpf_design_QA.rst
index a210b8a4df00..b5273148497c 100644
--- a/Documentation/bpf/bpf_design_QA.rst
+++ b/Documentation/bpf/bpf_design_QA.rst
@@ -298,3 +298,47 @@ A: NO.
 
 The BTF_ID macro does not cause a function to become part of the ABI
 any more than does the EXPORT_SYMBOL_GPL macro.
+
+Q: What is the compatibility story for special BPF types in map values?
+-----------------------------------------------------------------------
+Q: Users are allowed to embed bpf_spin_lock, bpf_timer fields in their BPF map
+values (when using BTF support for BPF maps). This allows to use helpers for
+such objects on these fields inside map values. Users are also allowed to embed
+pointers to some kernel types (with __kptr and __kptr_ref BTF tags). Will the
+kernel preserve backwards compatibility for these features?
+
+A: It depends. For bpf_spin_lock, bpf_timer: YES, for kptr and everything else:
+NO, but see below.
+
+For struct types that have been added already, like bpf_spin_lock and bpf_timer,
+the kernel will preserve backwards compatibility, as they are part of UAPI.
+
+For kptrs, they are also part of UAPI, but only with respect to the kptr
+mechanism. The types that you can use with a __kptr and __kptr_ref tagged
+pointer in your struct is NOT part of the UAPI contract. The supported types can
+and will change across kernel releases. However, operations like accessing kptr
+fields and bpf_kptr_xchg() helper will continue to be supported across kernel
+releases for the supported types.
+
+For any other supported struct type, unless explicitly stated in this document
+and added to bpf.h UAPI header, such types can and will arbitrarily change their
+size, type, and alignment, or any other user visible API or ABI detail across
+kernel releases. The users must adapt their BPF programs to the new changes and
+update them to make sure their programs continue to work correctly.
+
+NOTE: BPF subsystem specially reserves the 'bpf_' prefix for type names, in
+order to introduce more special fields in the future. Hence, user programs must
+avoid defining types with 'bpf_' prefix to not be broken in future releases. In
+other words, no backwards compatibility is guaranteed if one using a type in BTF
+with 'bpf_' prefix.
+
+Q: What is the compatibility story for special BPF types in local kptrs?
+------------------------------------------------------------------------
+Q: Same as above, but for local kptrs (i.e. pointers to objects allocated using
+bpf_obj_new for user defined structures). Will the kernel preserve backwards
+compatibility for these features?
+
+A: NO.
+
+Unlike map value types, there are no stability guarantees for this case. The
+whole local kptr API itself is unstable (since it is exposed through kfuncs).
-- 
2.38.1

[PATCH bpf-next v3 02/24] bpf: Allow specifying volatile type modifier for kptrs

[Kumar Kartikeya Dwivedi]

This is useful in particular to mark the pointer as volatile, so that
compiler treats each load and store to the field as a volatile access.
The alternative is having to define and use READ_ONCE and WRITE_ONCE in
the BPF program.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/btf.h | 5 +++++
 kernel/bpf/btf.c    | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/include/linux/btf.h b/include/linux/btf.h
index f9aababc5d78..86aad9b2ce02 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -288,6 +288,11 @@ static inline bool btf_type_is_typedef(const struct btf_type *t)
 	return BTF_INFO_KIND(t->info) == BTF_KIND_TYPEDEF;
 }
 
+static inline bool btf_type_is_volatile(const struct btf_type *t)
+{
+	return BTF_INFO_KIND(t->info) == BTF_KIND_VOLATILE;
+}
+
 static inline bool btf_type_is_func(const struct btf_type *t)
 {
 	return BTF_INFO_KIND(t->info) == BTF_KIND_FUNC;
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index eba603cec2c5..ad301e78f7ee 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3225,6 +3225,9 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t,
 	enum bpf_kptr_type type;
 	u32 res_id;
 
+	/* Permit modifiers on the pointer itself */
+	if (btf_type_is_volatile(t))
+		t = btf_type_by_id(btf, t->type);
 	/* For PTR, sz is always == 8 */
 	if (!btf_type_is_ptr(t))
 		return BTF_FIELD_IGNORE;
-- 
2.38.1

[PATCH bpf-next v3 03/24] bpf: Clobber stack slot when writing over spilled PTR_TO_BTF_ID

[Kumar Kartikeya Dwivedi]

When support was added for spilled PTR_TO_BTF_ID to be accessed by
helper memory access, the stack slot was not overwritten to STACK_MISC
(and that too is only safe when env->allow_ptr_leaks is true).

This means that helpers who take ARG_PTR_TO_MEM and write to it may
essentially overwrite the value while the verifier continues to track
the slot for spilled register.

This can cause issues when PTR_TO_BTF_ID is spilled to stack, and then
overwritten by helper write access, which can then be passed to BPF
helpers or kfuncs.

Handle this by falling back to the case introduced in a later commit,
which will also handle PTR_TO_BTF_ID along with other pointer types,
i.e. cd17d38f8b28 ("bpf: Permits pointers on stack for helper calls").

Finally, include a comment on why REG_LIVE_WRITTEN is not being set when
clobber is set to true. In short, the reason is that while when clobber
is unset, we know that we won't be writing, when it is true, we *may*
write to any of the stack slots in that range. It may be a partial or
complete write, to just one or many stack slots.

We cannot be sure, hence to be conservative, we leave things as is and
never set REG_LIVE_WRITTEN for any stack slot. However, clobber still
needs to reset them to STACK_MISC assuming writes happened. However read
marks still need to be propagated upwards from liveness point of view,
as parent stack slot's contents may still continue to matter to child
states.

Cc: Yonghong Song <yhs@meta.com>
Fixes: 1d68f22b3d53 ("bpf: Handle spilled PTR_TO_BTF_ID properly when checking stack_boundary")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/verifier.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 275c2f1f00ee..123fcb1b2cca 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5154,10 +5154,6 @@ static int check_stack_range_initialized(
 			goto mark;
 		}
 
-		if (is_spilled_reg(&state->stack[spi]) &&
-		    base_type(state->stack[spi].spilled_ptr.type) == PTR_TO_BTF_ID)
-			goto mark;
-
 		if (is_spilled_reg(&state->stack[spi]) &&
 		    (state->stack[spi].spilled_ptr.type == SCALAR_VALUE ||
 		     env->allow_ptr_leaks)) {
@@ -5188,6 +5184,11 @@ static int check_stack_range_initialized(
 		mark_reg_read(env, &state->stack[spi].spilled_ptr,
 			      state->stack[spi].spilled_ptr.parent,
 			      REG_LIVE_READ64);
+		/* We do not set REG_LIVE_WRITTEN for stack slot, as we can not
+		 * be sure that whether stack slot is written to or not. Hence,
+		 * we must still conservatively propagate reads upwards even if
+		 * helper may write to the entire memory range.
+		 */
 	}
 	return update_stack_depth(env, state, min_off);
 }
-- 
2.38.1

[PATCH bpf-next v3 04/24] bpf: Fix slot type check in check_stack_write_var_off

[Kumar Kartikeya Dwivedi]

For the case where allow_ptr_leaks is false, code is checking whether
slot type is STACK_INVALID and STACK_SPILL and rejecting other cases.
This is a consequence of incorrectly checking for register type instead
of the slot type (NOT_INIT and SCALAR_VALUE respectively). Fix the
check.

Fixes: 01f810ace9ed ("bpf: Allow variable-offset stack access")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/verifier.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 123fcb1b2cca..abdd293e4358 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3181,14 +3181,17 @@ static int check_stack_write_var_off(struct bpf_verifier_env *env,
 		stype = &state->stack[spi].slot_type[slot % BPF_REG_SIZE];
 		mark_stack_slot_scratched(env, spi);
 
-		if (!env->allow_ptr_leaks
-				&& *stype != NOT_INIT
-				&& *stype != SCALAR_VALUE) {
-			/* Reject the write if there's are spilled pointers in
-			 * range. If we didn't reject here, the ptr status
-			 * would be erased below (even though not all slots are
-			 * actually overwritten), possibly opening the door to
-			 * leaks.
+		if (!env->allow_ptr_leaks && *stype != STACK_MISC && *stype != STACK_ZERO) {
+			/* Reject the write if range we may write to has not
+			 * been initialized beforehand. If we didn't reject
+			 * here, the ptr status would be erased below (even
+			 * though not all slots are actually overwritten),
+			 * possibly opening the door to leaks.
+			 *
+			 * We do however catch STACK_INVALID case below, and
+			 * only allow reading possibly uninitialized memory
+			 * later for CAP_PERFMON, as the write may not happen to
+			 * that slot.
 			 */
 			verbose(env, "spilled ptr in range of var-offset stack write; insn %d, ptr off: %d",
 				insn_idx, i);
-- 
2.38.1

[PATCH bpf-next v3 05/24] bpf: Drop reg_type_may_be_refcounted_or_null

[Kumar Kartikeya Dwivedi]

It is not scalable to maintain a list of types that can have non-zero
ref_obj_id. It is never set for scalars anyway, so just remove the
conditional on register types and print it whenever it is non-zero.

Acked-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/verifier.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index abdd293e4358..bbe2c17bf05f 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -457,13 +457,6 @@ static bool reg_may_point_to_spin_lock(const struct bpf_reg_state *reg)
 		map_value_has_spin_lock(reg->map_ptr);
 }
 
-static bool reg_type_may_be_refcounted_or_null(enum bpf_reg_type type)
-{
-	type = base_type(type);
-	return type == PTR_TO_SOCKET || type == PTR_TO_TCP_SOCK ||
-		type == PTR_TO_MEM || type == PTR_TO_BTF_ID;
-}
-
 static bool type_is_rdonly_mem(u32 type)
 {
 	return type & MEM_RDONLY;
@@ -875,7 +868,7 @@ static void print_verifier_state(struct bpf_verifier_env *env,
 
 			if (reg->id)
 				verbose_a("id=%d", reg->id);
-			if (reg_type_may_be_refcounted_or_null(t) && reg->ref_obj_id)
+			if (reg->ref_obj_id)
 				verbose_a("ref_obj_id=%d", reg->ref_obj_id);
 			if (t != SCALAR_VALUE)
 				verbose_a("off=%d", reg->off);
-- 
2.38.1

[PATCH bpf-next v3 06/24] bpf: Refactor kptr_off_tab into btf_record

[Kumar Kartikeya Dwivedi]

To prepare the BPF verifier to handle special fields in both map values
and program allocated types coming from program BTF, we need to refactor
the kptr_off_tab handling code into something more generic and reusable
across both cases to avoid code duplication.

Later patches also require passing this data to helpers at runtime, so
that they can work on user defined types, initialize them, destruct
them, etc.

The main observation is that both map values and such allocated types
point to a type in program BTF, hence they can be handled similarly. We
can prepare a field metadata table for both cases and store them in
struct bpf_map or struct btf depending on the use case.

Hence, refactor the code into generic btf_record and btf_field member
structs. The btf_record represents the fields of a specific btf_type in
user BTF. The cnt indicates the number of special fields we successfully
recognized, and field_mask is a bitmask of fields that were found, to
enable quick determination of availability of a certain field.

Subsequently, refactor the rest of the code to work with these generic
types, remove assumptions about kptr and kptr_off_tab, rename variables
to more meaningful names, etc.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h     | 119 +++++++++++-------
 include/linux/btf.h     |   3 +-
 kernel/bpf/arraymap.c   |  13 +-
 kernel/bpf/btf.c        |  67 +++++-----
 kernel/bpf/hashtab.c    |  14 +--
 kernel/bpf/map_in_map.c |  14 ++-
 kernel/bpf/syscall.c    | 263 +++++++++++++++++++++++-----------------
 kernel/bpf/verifier.c   |  96 +++++++--------
 8 files changed, 328 insertions(+), 261 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9fd68b0b3e9c..e6fe78485e33 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -164,35 +164,41 @@ struct bpf_map_ops {
 };
 
 enum {
-	/* Support at most 8 pointers in a BPF map value */
-	BPF_MAP_VALUE_OFF_MAX = 8,
-	BPF_MAP_OFF_ARR_MAX   = BPF_MAP_VALUE_OFF_MAX +
+	/* Support at most 8 pointers in a BTF type */
+	BTF_FIELDS_MAX	      = 8,
+	BPF_MAP_OFF_ARR_MAX   = BTF_FIELDS_MAX +
 				1 + /* for bpf_spin_lock */
 				1,  /* for bpf_timer */
 };
 
-enum bpf_kptr_type {
-	BPF_KPTR_UNREF,
-	BPF_KPTR_REF,
+enum btf_field_type {
+	BPF_KPTR_UNREF = (1 << 2),
+	BPF_KPTR_REF   = (1 << 3),
+	BPF_KPTR       = BPF_KPTR_UNREF | BPF_KPTR_REF,
 };
 
-struct bpf_map_value_off_desc {
+struct btf_field_kptr {
+	struct btf *btf;
+	struct module *module;
+	btf_dtor_kfunc_t dtor;
+	u32 btf_id;
+};
+
+struct btf_field {
 	u32 offset;
-	enum bpf_kptr_type type;
-	struct {
-		struct btf *btf;
-		struct module *module;
-		btf_dtor_kfunc_t dtor;
-		u32 btf_id;
-	} kptr;
+	enum btf_field_type type;
+	union {
+		struct btf_field_kptr kptr;
+	};
 };
 
-struct bpf_map_value_off {
-	u32 nr_off;
-	struct bpf_map_value_off_desc off[];
+struct btf_record {
+	u32 cnt;
+	u32 field_mask;
+	struct btf_field fields[];
 };
 
-struct bpf_map_off_arr {
+struct btf_field_offs {
 	u32 cnt;
 	u32 field_off[BPF_MAP_OFF_ARR_MAX];
 	u8 field_sz[BPF_MAP_OFF_ARR_MAX];
@@ -214,7 +220,7 @@ struct bpf_map {
 	u64 map_extra; /* any per-map-type extra fields */
 	u32 map_flags;
 	int spin_lock_off; /* >=0 valid offset, <0 error */
-	struct bpf_map_value_off *kptr_off_tab;
+	struct btf_record *record;
 	int timer_off; /* >=0 valid offset, <0 error */
 	u32 id;
 	int numa_node;
@@ -226,7 +232,7 @@ struct bpf_map {
 	struct obj_cgroup *objcg;
 #endif
 	char name[BPF_OBJ_NAME_LEN];
-	struct bpf_map_off_arr *off_arr;
+	struct btf_field_offs *field_offs;
 	/* The 3rd and 4th cacheline with misc members to avoid false sharing
 	 * particularly with refcounting.
 	 */
@@ -250,6 +256,37 @@ struct bpf_map {
 	bool frozen; /* write-once; write-protected by freeze_mutex */
 };
 
+static inline u32 btf_field_type_size(enum btf_field_type type)
+{
+	switch (type) {
+	case BPF_KPTR_UNREF:
+	case BPF_KPTR_REF:
+		return sizeof(u64);
+	default:
+		WARN_ON_ONCE(1);
+		return 0;
+	}
+}
+
+static inline u32 btf_field_type_align(enum btf_field_type type)
+{
+	switch (type) {
+	case BPF_KPTR_UNREF:
+	case BPF_KPTR_REF:
+		return __alignof__(u64);
+	default:
+		WARN_ON_ONCE(1);
+		return 0;
+	}
+}
+
+static inline bool btf_record_has_field(const struct btf_record *rec, enum btf_field_type type)
+{
+	if (IS_ERR_OR_NULL(rec))
+		return false;
+	return rec->field_mask & type;
+}
+
 static inline bool map_value_has_spin_lock(const struct bpf_map *map)
 {
 	return map->spin_lock_off >= 0;
@@ -260,23 +297,19 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
 	return map->timer_off >= 0;
 }
 
-static inline bool map_value_has_kptrs(const struct bpf_map *map)
-{
-	return !IS_ERR_OR_NULL(map->kptr_off_tab);
-}
-
 static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
 {
 	if (unlikely(map_value_has_spin_lock(map)))
 		memset(dst + map->spin_lock_off, 0, sizeof(struct bpf_spin_lock));
 	if (unlikely(map_value_has_timer(map)))
 		memset(dst + map->timer_off, 0, sizeof(struct bpf_timer));
-	if (unlikely(map_value_has_kptrs(map))) {
-		struct bpf_map_value_off *tab = map->kptr_off_tab;
+	if (!IS_ERR_OR_NULL(map->record)) {
+		struct btf_field *fields = map->record->fields;
+		u32 cnt = map->record->cnt;
 		int i;
 
-		for (i = 0; i < tab->nr_off; i++)
-			*(u64 *)(dst + tab->off[i].offset) = 0;
+		for (i = 0; i < cnt; i++)
+			memset(dst + fields[i].offset, 0, btf_field_type_size(fields[i].type));
 	}
 }
 
@@ -302,7 +335,7 @@ static inline void __copy_map_value(struct bpf_map *map, void *dst, void *src, b
 	u32 curr_off = 0;
 	int i;
 
-	if (likely(!map->off_arr)) {
+	if (likely(!map->field_offs)) {
 		if (long_memcpy)
 			bpf_long_memcpy(dst, src, round_up(map->value_size, 8));
 		else
@@ -310,11 +343,11 @@ static inline void __copy_map_value(struct bpf_map *map, void *dst, void *src, b
 		return;
 	}
 
-	for (i = 0; i < map->off_arr->cnt; i++) {
-		u32 next_off = map->off_arr->field_off[i];
+	for (i = 0; i < map->field_offs->cnt; i++) {
+		u32 next_off = map->field_offs->field_off[i];
 
 		memcpy(dst + curr_off, src + curr_off, next_off - curr_off);
-		curr_off += map->off_arr->field_sz[i];
+		curr_off += map->field_offs->field_sz[i];
 	}
 	memcpy(dst + curr_off, src + curr_off, map->value_size - curr_off);
 }
@@ -334,16 +367,16 @@ static inline void zero_map_value(struct bpf_map *map, void *dst)
 	u32 curr_off = 0;
 	int i;
 
-	if (likely(!map->off_arr)) {
+	if (likely(!map->field_offs)) {
 		memset(dst, 0, map->value_size);
 		return;
 	}
 
-	for (i = 0; i < map->off_arr->cnt; i++) {
-		u32 next_off = map->off_arr->field_off[i];
+	for (i = 0; i < map->field_offs->cnt; i++) {
+		u32 next_off = map->field_offs->field_off[i];
 
 		memset(dst + curr_off, 0, next_off - curr_off);
-		curr_off += map->off_arr->field_sz[i];
+		curr_off += map->field_offs->field_sz[i];
 	}
 	memset(dst + curr_off, 0, map->value_size - curr_off);
 }
@@ -1687,11 +1720,13 @@ void bpf_prog_put(struct bpf_prog *prog);
 void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
 void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
 
-struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
-void bpf_map_free_kptr_off_tab(struct bpf_map *map);
-struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
-bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
-void bpf_map_free_kptrs(struct bpf_map *map, void *map_value);
+struct btf_field *btf_record_find(const struct btf_record *rec,
+				  u32 offset, enum btf_field_type type);
+void btf_record_free(struct btf_record *rec);
+void bpf_map_free_record(struct bpf_map *map);
+struct btf_record *btf_record_dup(const struct btf_record *rec);
+bool btf_record_equal(const struct btf_record *rec_a, const struct btf_record *rec_b);
+void bpf_obj_free_fields(const struct btf_record *rec, void *obj);
 
 struct bpf_map *bpf_map_get(u32 ufd);
 struct bpf_map *bpf_map_get_with_uref(u32 ufd);
diff --git a/include/linux/btf.h b/include/linux/btf.h
index 86aad9b2ce02..9e62717cdc7a 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -163,8 +163,7 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
 			   u32 expected_offset, u32 expected_size);
 int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
 int btf_find_timer(const struct btf *btf, const struct btf_type *t);
-struct bpf_map_value_off *btf_parse_kptrs(const struct btf *btf,
-					  const struct btf_type *t);
+struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t);
 bool btf_type_is_void(const struct btf_type *t);
 s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
 const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 832b2659e96e..417f84342e98 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -310,8 +310,7 @@ static void check_and_free_fields(struct bpf_array *arr, void *val)
 {
 	if (map_value_has_timer(&arr->map))
 		bpf_timer_cancel_and_free(val + arr->map.timer_off);
-	if (map_value_has_kptrs(&arr->map))
-		bpf_map_free_kptrs(&arr->map, val);
+	bpf_obj_free_fields(arr->map.record, val);
 }
 
 /* Called from syscall or from eBPF program */
@@ -409,7 +408,7 @@ static void array_map_free_timers(struct bpf_map *map)
 	struct bpf_array *array = container_of(map, struct bpf_array, map);
 	int i;
 
-	/* We don't reset or free kptr on uref dropping to zero. */
+	/* We don't reset or free fields other than timer on uref dropping to zero. */
 	if (!map_value_has_timer(map))
 		return;
 
@@ -423,22 +422,22 @@ static void array_map_free(struct bpf_map *map)
 	struct bpf_array *array = container_of(map, struct bpf_array, map);
 	int i;
 
-	if (map_value_has_kptrs(map)) {
+	if (!IS_ERR_OR_NULL(map->record)) {
 		if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY) {
 			for (i = 0; i < array->map.max_entries; i++) {
 				void __percpu *pptr = array->pptrs[i & array->index_mask];
 				int cpu;
 
 				for_each_possible_cpu(cpu) {
-					bpf_map_free_kptrs(map, per_cpu_ptr(pptr, cpu));
+					bpf_obj_free_fields(map->record, per_cpu_ptr(pptr, cpu));
 					cond_resched();
 				}
 			}
 		} else {
 			for (i = 0; i < array->map.max_entries; i++)
-				bpf_map_free_kptrs(map, array_map_elem_ptr(array, i));
+				bpf_obj_free_fields(map->record, array_map_elem_ptr(array, i));
 		}
-		bpf_map_free_kptr_off_tab(map);
+		bpf_map_free_record(map);
 	}
 
 	if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index ad301e78f7ee..199a2ab70632 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3191,7 +3191,7 @@ static void btf_struct_log(struct btf_verifier_env *env,
 	btf_verifier_log(env, "size=%u vlen=%u", t->size, btf_type_vlen(t));
 }
 
-enum btf_field_type {
+enum btf_field_info_type {
 	BTF_FIELD_SPIN_LOCK,
 	BTF_FIELD_TIMER,
 	BTF_FIELD_KPTR,
@@ -3203,9 +3203,9 @@ enum {
 };
 
 struct btf_field_info {
-	u32 type_id;
+	enum btf_field_type type;
 	u32 off;
-	enum bpf_kptr_type type;
+	u32 type_id;
 };
 
 static int btf_find_struct(const struct btf *btf, const struct btf_type *t,
@@ -3222,7 +3222,7 @@ static int btf_find_struct(const struct btf *btf, const struct btf_type *t,
 static int btf_find_kptr(const struct btf *btf, const struct btf_type *t,
 			 u32 off, int sz, struct btf_field_info *info)
 {
-	enum bpf_kptr_type type;
+	enum btf_field_type type;
 	u32 res_id;
 
 	/* Permit modifiers on the pointer itself */
@@ -3259,7 +3259,7 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t,
 
 static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
 				 const char *name, int sz, int align,
-				 enum btf_field_type field_type,
+				 enum btf_field_info_type field_type,
 				 struct btf_field_info *info, int info_cnt)
 {
 	const struct btf_member *member;
@@ -3311,7 +3311,7 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
 
 static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 				const char *name, int sz, int align,
-				enum btf_field_type field_type,
+				enum btf_field_info_type field_type,
 				struct btf_field_info *info, int info_cnt)
 {
 	const struct btf_var_secinfo *vsi;
@@ -3360,7 +3360,7 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 }
 
 static int btf_find_field(const struct btf *btf, const struct btf_type *t,
-			  enum btf_field_type field_type,
+			  enum btf_field_info_type field_type,
 			  struct btf_field_info *info, int info_cnt)
 {
 	const char *name;
@@ -3423,14 +3423,13 @@ int btf_find_timer(const struct btf *btf, const struct btf_type *t)
 	return info.off;
 }
 
-struct bpf_map_value_off *btf_parse_kptrs(const struct btf *btf,
-					  const struct btf_type *t)
+struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t)
 {
-	struct btf_field_info info_arr[BPF_MAP_VALUE_OFF_MAX];
-	struct bpf_map_value_off *tab;
+	struct btf_field_info info_arr[BTF_FIELDS_MAX];
 	struct btf *kernel_btf = NULL;
 	struct module *mod = NULL;
-	int ret, i, nr_off;
+	struct btf_record *rec;
+	int ret, i, cnt;
 
 	ret = btf_find_field(btf, t, BTF_FIELD_KPTR, info_arr, ARRAY_SIZE(info_arr));
 	if (ret < 0)
@@ -3438,12 +3437,12 @@ struct bpf_map_value_off *btf_parse_kptrs(const struct btf *btf,
 	if (!ret)
 		return NULL;
 
-	nr_off = ret;
-	tab = kzalloc(offsetof(struct bpf_map_value_off, off[nr_off]), GFP_KERNEL | __GFP_NOWARN);
-	if (!tab)
+	cnt = ret;
+	rec = kzalloc(offsetof(struct btf_record, fields[cnt]), GFP_KERNEL | __GFP_NOWARN);
+	if (!rec)
 		return ERR_PTR(-ENOMEM);
-
-	for (i = 0; i < nr_off; i++) {
+	rec->cnt = 0;
+	for (i = 0; i < cnt; i++) {
 		const struct btf_type *t;
 		s32 id;
 
@@ -3500,28 +3499,24 @@ struct bpf_map_value_off *btf_parse_kptrs(const struct btf *btf,
 				ret = -EINVAL;
 				goto end_mod;
 			}
-			tab->off[i].kptr.dtor = (void *)addr;
+			rec->fields[i].kptr.dtor = (void *)addr;
 		}
 
-		tab->off[i].offset = info_arr[i].off;
-		tab->off[i].type = info_arr[i].type;
-		tab->off[i].kptr.btf_id = id;
-		tab->off[i].kptr.btf = kernel_btf;
-		tab->off[i].kptr.module = mod;
+		rec->fields[i].offset = info_arr[i].off;
+		rec->fields[i].type = info_arr[i].type;
+		rec->fields[i].kptr.btf_id = id;
+		rec->fields[i].kptr.btf = kernel_btf;
+		rec->fields[i].kptr.module = mod;
+		rec->cnt++;
 	}
-	tab->nr_off = nr_off;
-	return tab;
+	rec->cnt = cnt;
+	return rec;
 end_mod:
 	module_put(mod);
 end_btf:
 	btf_put(kernel_btf);
 end:
-	while (i--) {
-		btf_put(tab->off[i].kptr.btf);
-		if (tab->off[i].kptr.module)
-			module_put(tab->off[i].kptr.module);
-	}
-	kfree(tab);
+	btf_record_free(rec);
 	return ERR_PTR(ret);
 }
 
@@ -6365,7 +6360,7 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 
 		/* kptr_get is only true for kfunc */
 		if (i == 0 && kptr_get) {
-			struct bpf_map_value_off_desc *off_desc;
+			struct btf_field *kptr_field;
 
 			if (reg->type != PTR_TO_MAP_VALUE) {
 				bpf_log(log, "arg#0 expected pointer to map value\n");
@@ -6381,8 +6376,8 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 				return -EINVAL;
 			}
 
-			off_desc = bpf_map_kptr_off_contains(reg->map_ptr, reg->off + reg->var_off.value);
-			if (!off_desc || off_desc->type != BPF_KPTR_REF) {
+			kptr_field = btf_record_find(reg->map_ptr->record, reg->off + reg->var_off.value, BPF_KPTR);
+			if (!kptr_field || kptr_field->type != BPF_KPTR_REF) {
 				bpf_log(log, "arg#0 no referenced kptr at map value offset=%llu\n",
 					reg->off + reg->var_off.value);
 				return -EINVAL;
@@ -6401,8 +6396,8 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 					func_name, i, btf_type_str(ref_t), ref_tname);
 				return -EINVAL;
 			}
-			if (!btf_struct_ids_match(log, btf, ref_id, 0, off_desc->kptr.btf,
-						  off_desc->kptr.btf_id, true)) {
+			if (!btf_struct_ids_match(log, btf, ref_id, 0, kptr_field->kptr.btf,
+						  kptr_field->kptr.btf_id, true)) {
 				bpf_log(log, "kernel function %s args#%d expected pointer to %s %s\n",
 					func_name, i, btf_type_str(ref_t), ref_tname);
 				return -EINVAL;
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index ed3f8a53603b..6e4120e98a2c 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -238,21 +238,20 @@ static void htab_free_prealloced_timers(struct bpf_htab *htab)
 	}
 }
 
-static void htab_free_prealloced_kptrs(struct bpf_htab *htab)
+static void htab_free_prealloced_fields(struct bpf_htab *htab)
 {
 	u32 num_entries = htab->map.max_entries;
 	int i;
 
-	if (!map_value_has_kptrs(&htab->map))
+	if (IS_ERR_OR_NULL(htab->map.record))
 		return;
 	if (htab_has_extra_elems(htab))
 		num_entries += num_possible_cpus();
-
 	for (i = 0; i < num_entries; i++) {
 		struct htab_elem *elem;
 
 		elem = get_htab_elem(htab, i);
-		bpf_map_free_kptrs(&htab->map, elem->key + round_up(htab->map.key_size, 8));
+		bpf_obj_free_fields(htab->map.record, elem->key + round_up(htab->map.key_size, 8));
 		cond_resched();
 	}
 }
@@ -766,8 +765,7 @@ static void check_and_free_fields(struct bpf_htab *htab,
 
 	if (map_value_has_timer(&htab->map))
 		bpf_timer_cancel_and_free(map_value + htab->map.timer_off);
-	if (map_value_has_kptrs(&htab->map))
-		bpf_map_free_kptrs(&htab->map, map_value);
+	bpf_obj_free_fields(htab->map.record, map_value);
 }
 
 /* It is called from the bpf_lru_list when the LRU needs to delete
@@ -1517,11 +1515,11 @@ static void htab_map_free(struct bpf_map *map)
 	if (!htab_is_prealloc(htab)) {
 		delete_all_elements(htab);
 	} else {
-		htab_free_prealloced_kptrs(htab);
+		htab_free_prealloced_fields(htab);
 		prealloc_destroy(htab);
 	}
 
-	bpf_map_free_kptr_off_tab(map);
+	bpf_map_free_record(map);
 	free_percpu(htab->extra_elems);
 	bpf_map_area_free(htab->buckets);
 	bpf_mem_alloc_destroy(&htab->pcpu_ma);
diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
index 135205d0d560..d6c662183f88 100644
--- a/kernel/bpf/map_in_map.c
+++ b/kernel/bpf/map_in_map.c
@@ -52,7 +52,15 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 	inner_map_meta->max_entries = inner_map->max_entries;
 	inner_map_meta->spin_lock_off = inner_map->spin_lock_off;
 	inner_map_meta->timer_off = inner_map->timer_off;
-	inner_map_meta->kptr_off_tab = bpf_map_copy_kptr_off_tab(inner_map);
+	inner_map_meta->record = btf_record_dup(inner_map->record);
+	if (IS_ERR(inner_map_meta->record)) {
+		/* btf_record_dup returns NULL or valid pointer in case of
+		 * invalid/empty/valid, but ERR_PTR in case of errors. During
+		 * equality NULL or IS_ERR is equivalent.
+		 */
+		fdput(f);
+		return ERR_CAST(inner_map_meta->record);
+	}
 	if (inner_map->btf) {
 		btf_get(inner_map->btf);
 		inner_map_meta->btf = inner_map->btf;
@@ -72,7 +80,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 
 void bpf_map_meta_free(struct bpf_map *map_meta)
 {
-	bpf_map_free_kptr_off_tab(map_meta);
+	bpf_map_free_record(map_meta);
 	btf_put(map_meta->btf);
 	kfree(map_meta);
 }
@@ -86,7 +94,7 @@ bool bpf_map_meta_equal(const struct bpf_map *meta0,
 		meta0->value_size == meta1->value_size &&
 		meta0->timer_off == meta1->timer_off &&
 		meta0->map_flags == meta1->map_flags &&
-		bpf_map_equal_kptr_off_tab(meta0, meta1);
+		btf_record_equal(meta0->record, meta1->record);
 }
 
 void *bpf_map_fd_get_ptr(struct bpf_map *map,
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 5887592eeb93..2d4bba45fd3c 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -495,114 +495,134 @@ static void bpf_map_release_memcg(struct bpf_map *map)
 }
 #endif
 
-static int bpf_map_kptr_off_cmp(const void *a, const void *b)
+static int btf_field_cmp(const void *a, const void *b)
 {
-	const struct bpf_map_value_off_desc *off_desc1 = a, *off_desc2 = b;
+	const struct btf_field *f1 = a, *f2 = b;
 
-	if (off_desc1->offset < off_desc2->offset)
+	if (f1->offset < f2->offset)
 		return -1;
-	else if (off_desc1->offset > off_desc2->offset)
+	else if (f1->offset > f2->offset)
 		return 1;
 	return 0;
 }
 
-struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset)
+struct btf_field *btf_record_find(const struct btf_record *rec, u32 offset,
+				  enum btf_field_type type)
 {
-	/* Since members are iterated in btf_find_field in increasing order,
-	 * offsets appended to kptr_off_tab are in increasing order, so we can
-	 * do bsearch to find exact match.
-	 */
-	struct bpf_map_value_off *tab;
+	struct btf_field *field;
 
-	if (!map_value_has_kptrs(map))
+	if (IS_ERR_OR_NULL(rec) || !(rec->field_mask & type))
+		return NULL;
+	field = bsearch(&offset, rec->fields, rec->cnt, sizeof(rec->fields[0]), btf_field_cmp);
+	if (!field || !(field->type & type))
 		return NULL;
-	tab = map->kptr_off_tab;
-	return bsearch(&offset, tab->off, tab->nr_off, sizeof(tab->off[0]), bpf_map_kptr_off_cmp);
+	return field;
 }
 
-void bpf_map_free_kptr_off_tab(struct bpf_map *map)
+void btf_record_free(struct btf_record *rec)
 {
-	struct bpf_map_value_off *tab = map->kptr_off_tab;
 	int i;
 
-	if (!map_value_has_kptrs(map))
+	if (IS_ERR_OR_NULL(rec))
 		return;
-	for (i = 0; i < tab->nr_off; i++) {
-		if (tab->off[i].kptr.module)
-			module_put(tab->off[i].kptr.module);
-		btf_put(tab->off[i].kptr.btf);
+	for (i = 0; i < rec->cnt; i++) {
+		switch (rec->fields[i].type) {
+		case BPF_KPTR_UNREF:
+		case BPF_KPTR_REF:
+			if (rec->fields[i].kptr.module)
+				module_put(rec->fields[i].kptr.module);
+			btf_put(rec->fields[i].kptr.btf);
+			break;
+		default:
+			WARN_ON_ONCE(1);
+			continue;
+		}
 	}
-	kfree(tab);
-	map->kptr_off_tab = NULL;
+	kfree(rec);
+}
+
+void bpf_map_free_record(struct bpf_map *map)
+{
+	btf_record_free(map->record);
+	map->record = NULL;
 }
 
-struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
+struct btf_record *btf_record_dup(const struct btf_record *rec)
 {
-	struct bpf_map_value_off *tab = map->kptr_off_tab, *new_tab;
-	int size, i;
+	const struct btf_field *fields;
+	struct btf_record *new_rec;
+	int ret, size, i;
 
-	if (!map_value_has_kptrs(map))
-		return ERR_PTR(-ENOENT);
-	size = offsetof(struct bpf_map_value_off, off[tab->nr_off]);
-	new_tab = kmemdup(tab, size, GFP_KERNEL | __GFP_NOWARN);
-	if (!new_tab)
+	if (IS_ERR_OR_NULL(rec))
+		return NULL;
+	size = offsetof(struct btf_record, fields[rec->cnt]);
+	new_rec = kmemdup(rec, size, GFP_KERNEL | __GFP_NOWARN);
+	if (!new_rec)
 		return ERR_PTR(-ENOMEM);
-	/* Do a deep copy of the kptr_off_tab */
-	for (i = 0; i < tab->nr_off; i++) {
-		btf_get(tab->off[i].kptr.btf);
-		if (tab->off[i].kptr.module && !try_module_get(tab->off[i].kptr.module)) {
-			while (i--) {
-				if (tab->off[i].kptr.module)
-					module_put(tab->off[i].kptr.module);
-				btf_put(tab->off[i].kptr.btf);
+	/* Do a deep copy of the btf_record */
+	fields = rec->fields;
+	new_rec->cnt = 0;
+	for (i = 0; i < rec->cnt; i++) {
+		switch (fields[i].type) {
+		case BPF_KPTR_UNREF:
+		case BPF_KPTR_REF:
+			btf_get(fields[i].kptr.btf);
+			if (fields[i].kptr.module && !try_module_get(fields[i].kptr.module)) {
+				ret = -ENXIO;
+				goto free;
 			}
-			kfree(new_tab);
-			return ERR_PTR(-ENXIO);
+			break;
+		default:
+			ret = -EFAULT;
+			WARN_ON_ONCE(1);
+			goto free;
 		}
+		new_rec->cnt++;
 	}
-	return new_tab;
+	return new_rec;
+free:
+	btf_record_free(new_rec);
+	return ERR_PTR(ret);
 }
 
-bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b)
+bool btf_record_equal(const struct btf_record *rec_a, const struct btf_record *rec_b)
 {
-	struct bpf_map_value_off *tab_a = map_a->kptr_off_tab, *tab_b = map_b->kptr_off_tab;
-	bool a_has_kptr = map_value_has_kptrs(map_a), b_has_kptr = map_value_has_kptrs(map_b);
+	bool a_has_fields = !IS_ERR_OR_NULL(rec_a), b_has_fields = !IS_ERR_OR_NULL(rec_b);
 	int size;
 
-	if (!a_has_kptr && !b_has_kptr)
+	if (!a_has_fields && !b_has_fields)
 		return true;
-	if (a_has_kptr != b_has_kptr)
+	if (a_has_fields != b_has_fields)
 		return false;
-	if (tab_a->nr_off != tab_b->nr_off)
+	if (rec_a->cnt != rec_b->cnt)
 		return false;
-	size = offsetof(struct bpf_map_value_off, off[tab_a->nr_off]);
-	return !memcmp(tab_a, tab_b, size);
+	size = offsetof(struct btf_record, fields[rec_a->cnt]);
+	return !memcmp(rec_a, rec_b, size);
 }
 
-/* Caller must ensure map_value_has_kptrs is true. Note that this function can
- * be called on a map value while the map_value is visible to BPF programs, as
- * it ensures the correct synchronization, and we already enforce the same using
- * the bpf_kptr_xchg helper on the BPF program side for referenced kptrs.
- */
-void bpf_map_free_kptrs(struct bpf_map *map, void *map_value)
+void bpf_obj_free_fields(const struct btf_record *rec, void *obj)
 {
-	struct bpf_map_value_off *tab = map->kptr_off_tab;
-	unsigned long *btf_id_ptr;
+	const struct btf_field *fields;
 	int i;
 
-	for (i = 0; i < tab->nr_off; i++) {
-		struct bpf_map_value_off_desc *off_desc = &tab->off[i];
-		unsigned long old_ptr;
-
-		btf_id_ptr = map_value + off_desc->offset;
-		if (off_desc->type == BPF_KPTR_UNREF) {
-			u64 *p = (u64 *)btf_id_ptr;
-
-			WRITE_ONCE(*p, 0);
+	if (IS_ERR_OR_NULL(rec))
+		return;
+	fields = rec->fields;
+	for (i = 0; i < rec->cnt; i++) {
+		const struct btf_field *field = &fields[i];
+		void *field_ptr = obj + field->offset;
+
+		switch (fields[i].type) {
+		case BPF_KPTR_UNREF:
+			WRITE_ONCE(*(u64 *)field_ptr, 0);
+			break;
+		case BPF_KPTR_REF:
+			field->kptr.dtor((void *)xchg((unsigned long *)field_ptr, 0));
+			break;
+		default:
+			WARN_ON_ONCE(1);
 			continue;
 		}
-		old_ptr = xchg(btf_id_ptr, 0);
-		off_desc->kptr.dtor((void *)old_ptr);
 	}
 }
 
@@ -612,10 +632,10 @@ static void bpf_map_free_deferred(struct work_struct *work)
 	struct bpf_map *map = container_of(work, struct bpf_map, work);
 
 	security_bpf_map_free(map);
-	kfree(map->off_arr);
+	kfree(map->field_offs);
 	bpf_map_release_memcg(map);
 	/* implementation dependent freeing, map_free callback also does
-	 * bpf_map_free_kptr_off_tab, if needed.
+	 * bpf_map_free_record, if needed.
 	 */
 	map->ops->map_free(map);
 }
@@ -779,7 +799,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
 	int err;
 
 	if (!map->ops->map_mmap || map_value_has_spin_lock(map) ||
-	    map_value_has_timer(map) || map_value_has_kptrs(map))
+	    map_value_has_timer(map) || !IS_ERR_OR_NULL(map->record))
 		return -ENOTSUPP;
 
 	if (!(vma->vm_flags & VM_SHARED))
@@ -906,7 +926,7 @@ int map_check_no_btf(const struct bpf_map *map,
 	return -ENOTSUPP;
 }
 
-static int map_off_arr_cmp(const void *_a, const void *_b, const void *priv)
+static int map_field_offs_cmp(const void *_a, const void *_b, const void *priv)
 {
 	const u32 a = *(const u32 *)_a;
 	const u32 b = *(const u32 *)_b;
@@ -918,15 +938,15 @@ static int map_off_arr_cmp(const void *_a, const void *_b, const void *priv)
 	return 0;
 }
 
-static void map_off_arr_swap(void *_a, void *_b, int size, const void *priv)
+static void map_field_offs_swap(void *_a, void *_b, int size, const void *priv)
 {
 	struct bpf_map *map = (struct bpf_map *)priv;
-	u32 *off_base = map->off_arr->field_off;
+	u32 *off_base = map->field_offs->field_off;
 	u32 *a = _a, *b = _b;
 	u8 *sz_a, *sz_b;
 
-	sz_a = map->off_arr->field_sz + (a - off_base);
-	sz_b = map->off_arr->field_sz + (b - off_base);
+	sz_a = map->field_offs->field_sz + (a - off_base);
+	sz_b = map->field_offs->field_sz + (b - off_base);
 
 	swap(*a, *b);
 	swap(*sz_a, *sz_b);
@@ -936,51 +956,51 @@ static int bpf_map_alloc_off_arr(struct bpf_map *map)
 {
 	bool has_spin_lock = map_value_has_spin_lock(map);
 	bool has_timer = map_value_has_timer(map);
-	bool has_kptrs = map_value_has_kptrs(map);
-	struct bpf_map_off_arr *off_arr;
+	bool has_fields = !IS_ERR_OR_NULL(map);
+	struct btf_field_offs *fo;
 	u32 i;
 
-	if (!has_spin_lock && !has_timer && !has_kptrs) {
-		map->off_arr = NULL;
+	if (!has_spin_lock && !has_timer && !has_fields) {
+		map->field_offs = NULL;
 		return 0;
 	}
 
-	off_arr = kmalloc(sizeof(*map->off_arr), GFP_KERNEL | __GFP_NOWARN);
-	if (!off_arr)
+	fo = kmalloc(sizeof(*map->field_offs), GFP_KERNEL | __GFP_NOWARN);
+	if (!fo)
 		return -ENOMEM;
-	map->off_arr = off_arr;
+	map->field_offs = fo;
 
-	off_arr->cnt = 0;
+	fo->cnt = 0;
 	if (has_spin_lock) {
-		i = off_arr->cnt;
+		i = fo->cnt;
 
-		off_arr->field_off[i] = map->spin_lock_off;
-		off_arr->field_sz[i] = sizeof(struct bpf_spin_lock);
-		off_arr->cnt++;
+		fo->field_off[i] = map->spin_lock_off;
+		fo->field_sz[i] = sizeof(struct bpf_spin_lock);
+		fo->cnt++;
 	}
 	if (has_timer) {
-		i = off_arr->cnt;
+		i = fo->cnt;
 
-		off_arr->field_off[i] = map->timer_off;
-		off_arr->field_sz[i] = sizeof(struct bpf_timer);
-		off_arr->cnt++;
+		fo->field_off[i] = map->timer_off;
+		fo->field_sz[i] = sizeof(struct bpf_timer);
+		fo->cnt++;
 	}
-	if (has_kptrs) {
-		struct bpf_map_value_off *tab = map->kptr_off_tab;
-		u32 *off = &off_arr->field_off[off_arr->cnt];
-		u8 *sz = &off_arr->field_sz[off_arr->cnt];
+	if (has_fields) {
+		struct btf_record *rec = map->record;
+		u32 *off = &fo->field_off[fo->cnt];
+		u8 *sz = &fo->field_sz[fo->cnt];
 
-		for (i = 0; i < tab->nr_off; i++) {
-			*off++ = tab->off[i].offset;
-			*sz++ = sizeof(u64);
+		for (i = 0; i < rec->cnt; i++) {
+			*off++ = rec->fields[i].offset;
+			*sz++ = btf_field_type_size(rec->fields[i].type);
 		}
-		off_arr->cnt += tab->nr_off;
+		fo->cnt += rec->cnt;
 	}
 
-	if (off_arr->cnt == 1)
+	if (fo->cnt == 1)
 		return 0;
-	sort_r(off_arr->field_off, off_arr->cnt, sizeof(off_arr->field_off[0]),
-	       map_off_arr_cmp, map_off_arr_swap, map);
+	sort_r(fo->field_off, fo->cnt, sizeof(fo->field_off[0]),
+	       map_field_offs_cmp, map_field_offs_swap, map);
 	return 0;
 }
 
@@ -1038,8 +1058,10 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			return -EOPNOTSUPP;
 	}
 
-	map->kptr_off_tab = btf_parse_kptrs(btf, value_type);
-	if (map_value_has_kptrs(map)) {
+	map->record = btf_parse_fields(btf, value_type);
+	if (!IS_ERR_OR_NULL(map->record)) {
+		int i;
+
 		if (!bpf_capable()) {
 			ret = -EPERM;
 			goto free_map_tab;
@@ -1048,12 +1070,25 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			ret = -EACCES;
 			goto free_map_tab;
 		}
-		if (map->map_type != BPF_MAP_TYPE_HASH &&
-		    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
-		    map->map_type != BPF_MAP_TYPE_ARRAY &&
-		    map->map_type != BPF_MAP_TYPE_PERCPU_ARRAY) {
-			ret = -EOPNOTSUPP;
-			goto free_map_tab;
+		for (i = 0; i < sizeof(map->record->field_mask) * 8; i++) {
+			switch (map->record->field_mask & (1 << i)) {
+			case 0:
+				continue;
+			case BPF_KPTR_UNREF:
+			case BPF_KPTR_REF:
+				if (map->map_type != BPF_MAP_TYPE_HASH &&
+				    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
+				    map->map_type != BPF_MAP_TYPE_ARRAY &&
+				    map->map_type != BPF_MAP_TYPE_PERCPU_ARRAY) {
+					ret = -EOPNOTSUPP;
+					goto free_map_tab;
+				}
+				break;
+			default:
+				/* Fail if map_type checks are missing for a field type */
+				ret = -EOPNOTSUPP;
+				goto free_map_tab;
+			}
 		}
 	}
 
@@ -1065,7 +1100,7 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 
 	return ret;
 free_map_tab:
-	bpf_map_free_kptr_off_tab(map);
+	bpf_map_free_record(map);
 	return ret;
 }
 
@@ -1186,7 +1221,7 @@ static int map_create(union bpf_attr *attr)
 free_map_sec:
 	security_bpf_map_free(map);
 free_map_off_arr:
-	kfree(map->off_arr);
+	kfree(map->field_offs);
 free_map:
 	btf_put(map->btf);
 	map->ops->map_free(map);
@@ -1883,7 +1918,7 @@ static int map_freeze(const union bpf_attr *attr)
 		return PTR_ERR(map);
 
 	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS ||
-	    map_value_has_timer(map) || map_value_has_kptrs(map)) {
+	    map_value_has_timer(map) || !IS_ERR_OR_NULL(map->record)) {
 		fdput(f);
 		return -ENOTSUPP;
 	}
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index bbe2c17bf05f..f233cbfce28c 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -262,7 +262,7 @@ struct bpf_call_arg_meta {
 	struct btf *ret_btf;
 	u32 ret_btf_id;
 	u32 subprogno;
-	struct bpf_map_value_off_desc *kptr_off_desc;
+	struct btf_field *kptr_field;
 	u8 uninit_dynptr_regno;
 };
 
@@ -3674,15 +3674,15 @@ int check_ptr_off_reg(struct bpf_verifier_env *env,
 }
 
 static int map_kptr_match_type(struct bpf_verifier_env *env,
-			       struct bpf_map_value_off_desc *off_desc,
+			       struct btf_field *kptr_field,
 			       struct bpf_reg_state *reg, u32 regno)
 {
-	const char *targ_name = kernel_type_name(off_desc->kptr.btf, off_desc->kptr.btf_id);
+	const char *targ_name = kernel_type_name(kptr_field->kptr.btf, kptr_field->kptr.btf_id);
 	int perm_flags = PTR_MAYBE_NULL;
 	const char *reg_name = "";
 
 	/* Only unreferenced case accepts untrusted pointers */
-	if (off_desc->type == BPF_KPTR_UNREF)
+	if (kptr_field->type == BPF_KPTR_UNREF)
 		perm_flags |= PTR_UNTRUSTED;
 
 	if (base_type(reg->type) != PTR_TO_BTF_ID || (type_flag(reg->type) & ~perm_flags))
@@ -3729,15 +3729,15 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 	 * strict mode to true for type match.
 	 */
 	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
-				  off_desc->kptr.btf, off_desc->kptr.btf_id,
-				  off_desc->type == BPF_KPTR_REF))
+				  kptr_field->kptr.btf, kptr_field->kptr.btf_id,
+				  kptr_field->type == BPF_KPTR_REF))
 		goto bad_type;
 	return 0;
 bad_type:
 	verbose(env, "invalid kptr access, R%d type=%s%s ", regno,
 		reg_type_str(env, reg->type), reg_name);
 	verbose(env, "expected=%s%s", reg_type_str(env, PTR_TO_BTF_ID), targ_name);
-	if (off_desc->type == BPF_KPTR_UNREF)
+	if (kptr_field->type == BPF_KPTR_UNREF)
 		verbose(env, " or %s%s\n", reg_type_str(env, PTR_TO_BTF_ID | PTR_UNTRUSTED),
 			targ_name);
 	else
@@ -3747,7 +3747,7 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 
 static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 				 int value_regno, int insn_idx,
-				 struct bpf_map_value_off_desc *off_desc)
+				 struct btf_field *kptr_field)
 {
 	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
 	int class = BPF_CLASS(insn->code);
@@ -3757,7 +3757,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	 *  - Reject cases where variable offset may touch kptr
 	 *  - size of access (must be BPF_DW)
 	 *  - tnum_is_const(reg->var_off)
-	 *  - off_desc->offset == off + reg->var_off.value
+	 *  - kptr_field->offset == off + reg->var_off.value
 	 */
 	/* Only BPF_[LDX,STX,ST] | BPF_MEM | BPF_DW is supported */
 	if (BPF_MODE(insn->code) != BPF_MEM) {
@@ -3768,7 +3768,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	/* We only allow loading referenced kptr, since it will be marked as
 	 * untrusted, similar to unreferenced kptr.
 	 */
-	if (class != BPF_LDX && off_desc->type == BPF_KPTR_REF) {
+	if (class != BPF_LDX && kptr_field->type == BPF_KPTR_REF) {
 		verbose(env, "store to referenced kptr disallowed\n");
 		return -EACCES;
 	}
@@ -3778,19 +3778,19 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 		/* We can simply mark the value_regno receiving the pointer
 		 * value from map as PTR_TO_BTF_ID, with the correct type.
 		 */
-		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, off_desc->kptr.btf,
-				off_desc->kptr.btf_id, PTR_MAYBE_NULL | PTR_UNTRUSTED);
+		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, kptr_field->kptr.btf,
+				kptr_field->kptr.btf_id, PTR_MAYBE_NULL | PTR_UNTRUSTED);
 		/* For mark_ptr_or_null_reg */
 		val_reg->id = ++env->id_gen;
 	} else if (class == BPF_STX) {
 		val_reg = reg_state(env, value_regno);
 		if (!register_is_null(val_reg) &&
-		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
+		    map_kptr_match_type(env, kptr_field, val_reg, value_regno))
 			return -EACCES;
 	} else if (class == BPF_ST) {
 		if (insn->imm) {
 			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
-				off_desc->offset);
+				kptr_field->offset);
 			return -EACCES;
 		}
 	} else {
@@ -3809,7 +3809,8 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 	struct bpf_func_state *state = vstate->frame[vstate->curframe];
 	struct bpf_reg_state *reg = &state->regs[regno];
 	struct bpf_map *map = reg->map_ptr;
-	int err;
+	struct btf_record *rec;
+	int err, i;
 
 	err = check_mem_region_access(env, regno, off, size, map->value_size,
 				      zero_size_allowed);
@@ -3839,15 +3840,18 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 			return -EACCES;
 		}
 	}
-	if (map_value_has_kptrs(map)) {
-		struct bpf_map_value_off *tab = map->kptr_off_tab;
-		int i;
-
-		for (i = 0; i < tab->nr_off; i++) {
-			u32 p = tab->off[i].offset;
-
-			if (reg->smin_value + off < p + sizeof(u64) &&
-			    p < reg->umax_value + off + size) {
+	if (IS_ERR_OR_NULL(map->record))
+		return 0;
+	rec = map->record;
+	for (i = 0; i < rec->cnt; i++) {
+		struct btf_field *field = &rec->fields[i];
+		u32 p = field->offset;
+
+		if (reg->smin_value + off < p + btf_field_type_size(field->type) &&
+		    p < reg->umax_value + off + size) {
+			switch (field->type) {
+			case BPF_KPTR_UNREF:
+			case BPF_KPTR_REF:
 				if (src != ACCESS_DIRECT) {
 					verbose(env, "kptr cannot be accessed indirectly by helper\n");
 					return -EACCES;
@@ -3866,10 +3870,13 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 					return -EACCES;
 				}
 				break;
+			default:
+				verbose(env, "field cannot be accessed directly by load/store\n");
+				return -EACCES;
 			}
 		}
 	}
-	return err;
+	return 0;
 }
 
 #define MAX_PACKET_OFF 0xffff
@@ -4742,7 +4749,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 		if (value_regno >= 0)
 			mark_reg_unknown(env, regs, value_regno);
 	} else if (reg->type == PTR_TO_MAP_VALUE) {
-		struct bpf_map_value_off_desc *kptr_off_desc = NULL;
+		struct btf_field *kptr_field = NULL;
 
 		if (t == BPF_WRITE && value_regno >= 0 &&
 		    is_pointer_value(env, value_regno)) {
@@ -4756,11 +4763,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 		if (err)
 			return err;
 		if (tnum_is_const(reg->var_off))
-			kptr_off_desc = bpf_map_kptr_off_contains(reg->map_ptr,
-								  off + reg->var_off.value);
-		if (kptr_off_desc) {
-			err = check_map_kptr_access(env, regno, value_regno, insn_idx,
-						    kptr_off_desc);
+			kptr_field = btf_record_find(reg->map_ptr->record,
+						     off + reg->var_off.value, BPF_KPTR);
+		if (kptr_field) {
+			err = check_map_kptr_access(env, regno, value_regno, insn_idx, kptr_field);
 		} else if (t == BPF_READ && value_regno >= 0) {
 			struct bpf_map *map = reg->map_ptr;
 
@@ -5527,10 +5533,9 @@ static int process_kptr_func(struct bpf_verifier_env *env, int regno,
 			     struct bpf_call_arg_meta *meta)
 {
 	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
-	struct bpf_map_value_off_desc *off_desc;
 	struct bpf_map *map_ptr = reg->map_ptr;
+	struct btf_field *kptr_field;
 	u32 kptr_off;
-	int ret;
 
 	if (!tnum_is_const(reg->var_off)) {
 		verbose(env,
@@ -5543,30 +5548,23 @@ static int process_kptr_func(struct bpf_verifier_env *env, int regno,
 			map_ptr->name);
 		return -EINVAL;
 	}
-	if (!map_value_has_kptrs(map_ptr)) {
-		ret = PTR_ERR_OR_ZERO(map_ptr->kptr_off_tab);
-		if (ret == -E2BIG)
-			verbose(env, "map '%s' has more than %d kptr\n", map_ptr->name,
-				BPF_MAP_VALUE_OFF_MAX);
-		else if (ret == -EEXIST)
-			verbose(env, "map '%s' has repeating kptr BTF tags\n", map_ptr->name);
-		else
-			verbose(env, "map '%s' has no valid kptr\n", map_ptr->name);
+	if (!btf_record_has_field(map_ptr->record, BPF_KPTR)) {
+		verbose(env, "map '%s' has no valid kptr\n", map_ptr->name);
 		return -EINVAL;
 	}
 
 	meta->map_ptr = map_ptr;
 	kptr_off = reg->off + reg->var_off.value;
-	off_desc = bpf_map_kptr_off_contains(map_ptr, kptr_off);
-	if (!off_desc) {
+	kptr_field = btf_record_find(map_ptr->record, kptr_off, BPF_KPTR);
+	if (!kptr_field) {
 		verbose(env, "off=%d doesn't point to kptr\n", kptr_off);
 		return -EACCES;
 	}
-	if (off_desc->type != BPF_KPTR_REF) {
+	if (kptr_field->type != BPF_KPTR_REF) {
 		verbose(env, "off=%d kptr isn't referenced kptr\n", kptr_off);
 		return -EACCES;
 	}
-	meta->kptr_off_desc = off_desc;
+	meta->kptr_field = kptr_field;
 	return 0;
 }
 
@@ -5788,7 +5786,7 @@ static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
 		}
 
 		if (meta->func_id == BPF_FUNC_kptr_xchg) {
-			if (map_kptr_match_type(env, meta->kptr_off_desc, reg, regno))
+			if (map_kptr_match_type(env, meta->kptr_field, reg, regno))
 				return -EACCES;
 		} else {
 			if (arg_btf_id == BPF_PTR_POISON) {
@@ -7535,8 +7533,8 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 		mark_reg_known_zero(env, regs, BPF_REG_0);
 		regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
 		if (func_id == BPF_FUNC_kptr_xchg) {
-			ret_btf = meta.kptr_off_desc->kptr.btf;
-			ret_btf_id = meta.kptr_off_desc->kptr.btf_id;
+			ret_btf = meta.kptr_field->kptr.btf;
+			ret_btf_id = meta.kptr_field->kptr.btf_id;
 		} else {
 			if (fn->ret_btf_id == BPF_PTR_POISON) {
 				verbose(env, "verifier internal error:");
-- 
2.38.1

[PATCH bpf-next v3 07/24] bpf: Consolidate spin_lock, timer management into btf_record

[Kumar Kartikeya Dwivedi]

Now that kptr_off_tab has been refactored into btf_record, and can hold
more than one specific field type, accomodate bpf_spin_lock and
bpf_timer as well.

While they don't require any more metadata than offset, having all
special fields in one place allows us to share the same code for
allocated user defined types and handle both map values and these
allocated objects in a similar fashion.

As an optimization, we still keep spin_lock_off and timer_off offsets in
the btf_record structure, just to avoid having to find the btf_field
struct each time their offset is needed. This is mostly needed to
manipulate such objects in a map value at runtime. It's ok to hardcode
just one offset as more than one field is disallowed.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h            |  53 +++---
 include/linux/btf.h            |   3 +-
 kernel/bpf/arraymap.c          |  19 +-
 kernel/bpf/bpf_local_storage.c |   2 +-
 kernel/bpf/btf.c               | 325 ++++++++++++++++++---------------
 kernel/bpf/hashtab.c           |  24 +--
 kernel/bpf/helpers.c           |   6 +-
 kernel/bpf/local_storage.c     |   2 +-
 kernel/bpf/map_in_map.c        |   5 +-
 kernel/bpf/syscall.c           | 133 ++++++--------
 kernel/bpf/verifier.c          |  82 +++------
 net/core/bpf_sk_storage.c      |   4 +-
 12 files changed, 314 insertions(+), 344 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index e6fe78485e33..762e9a20c358 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -165,13 +165,13 @@ struct bpf_map_ops {
 
 enum {
 	/* Support at most 8 pointers in a BTF type */
-	BTF_FIELDS_MAX	      = 8,
-	BPF_MAP_OFF_ARR_MAX   = BTF_FIELDS_MAX +
-				1 + /* for bpf_spin_lock */
-				1,  /* for bpf_timer */
+	BTF_FIELDS_MAX	      = 10,
+	BPF_MAP_OFF_ARR_MAX   = BTF_FIELDS_MAX,
 };
 
 enum btf_field_type {
+	BPF_SPIN_LOCK  = (1 << 0),
+	BPF_TIMER      = (1 << 1),
 	BPF_KPTR_UNREF = (1 << 2),
 	BPF_KPTR_REF   = (1 << 3),
 	BPF_KPTR       = BPF_KPTR_UNREF | BPF_KPTR_REF,
@@ -195,6 +195,8 @@ struct btf_field {
 struct btf_record {
 	u32 cnt;
 	u32 field_mask;
+	int spin_lock_off;
+	int timer_off;
 	struct btf_field fields[];
 };
 
@@ -219,10 +221,8 @@ struct bpf_map {
 	u32 max_entries;
 	u64 map_extra; /* any per-map-type extra fields */
 	u32 map_flags;
-	int spin_lock_off; /* >=0 valid offset, <0 error */
-	struct btf_record *record;
-	int timer_off; /* >=0 valid offset, <0 error */
 	u32 id;
+	struct btf_record *record;
 	int numa_node;
 	u32 btf_key_type_id;
 	u32 btf_value_type_id;
@@ -256,9 +256,29 @@ struct bpf_map {
 	bool frozen; /* write-once; write-protected by freeze_mutex */
 };
 
+static inline const char *btf_field_type_name(enum btf_field_type type)
+{
+	switch (type) {
+	case BPF_SPIN_LOCK:
+		return "bpf_spin_lock";
+	case BPF_TIMER:
+		return "bpf_timer";
+	case BPF_KPTR_UNREF:
+	case BPF_KPTR_REF:
+		return "kptr";
+	default:
+		WARN_ON_ONCE(1);
+		return "unknown";
+	}
+}
+
 static inline u32 btf_field_type_size(enum btf_field_type type)
 {
 	switch (type) {
+	case BPF_SPIN_LOCK:
+		return sizeof(struct bpf_spin_lock);
+	case BPF_TIMER:
+		return sizeof(struct bpf_timer);
 	case BPF_KPTR_UNREF:
 	case BPF_KPTR_REF:
 		return sizeof(u64);
@@ -271,6 +291,10 @@ static inline u32 btf_field_type_size(enum btf_field_type type)
 static inline u32 btf_field_type_align(enum btf_field_type type)
 {
 	switch (type) {
+	case BPF_SPIN_LOCK:
+		return __alignof__(struct bpf_spin_lock);
+	case BPF_TIMER:
+		return __alignof__(struct bpf_timer);
 	case BPF_KPTR_UNREF:
 	case BPF_KPTR_REF:
 		return __alignof__(u64);
@@ -287,22 +311,8 @@ static inline bool btf_record_has_field(const struct btf_record *rec, enum btf_f
 	return rec->field_mask & type;
 }
 
-static inline bool map_value_has_spin_lock(const struct bpf_map *map)
-{
-	return map->spin_lock_off >= 0;
-}
-
-static inline bool map_value_has_timer(const struct bpf_map *map)
-{
-	return map->timer_off >= 0;
-}
-
 static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
 {
-	if (unlikely(map_value_has_spin_lock(map)))
-		memset(dst + map->spin_lock_off, 0, sizeof(struct bpf_spin_lock));
-	if (unlikely(map_value_has_timer(map)))
-		memset(dst + map->timer_off, 0, sizeof(struct bpf_timer));
 	if (!IS_ERR_OR_NULL(map->record)) {
 		struct btf_field *fields = map->record->fields;
 		u32 cnt = map->record->cnt;
@@ -1726,6 +1736,7 @@ void btf_record_free(struct btf_record *rec);
 void bpf_map_free_record(struct bpf_map *map);
 struct btf_record *btf_record_dup(const struct btf_record *rec);
 bool btf_record_equal(const struct btf_record *rec_a, const struct btf_record *rec_b);
+void bpf_obj_free_timer(const struct btf_record *rec, void *obj);
 void bpf_obj_free_fields(const struct btf_record *rec, void *obj);
 
 struct bpf_map *bpf_map_get(u32 ufd);
diff --git a/include/linux/btf.h b/include/linux/btf.h
index 9e62717cdc7a..282006abd062 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -163,7 +163,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
 			   u32 expected_offset, u32 expected_size);
 int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
 int btf_find_timer(const struct btf *btf, const struct btf_type *t);
-struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t);
+struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t,
+				    u32 field_mask, u32 value_size);
 bool btf_type_is_void(const struct btf_type *t);
 s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
 const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 417f84342e98..672eb17ac421 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -306,13 +306,6 @@ static int array_map_get_next_key(struct bpf_map *map, void *key, void *next_key
 	return 0;
 }
 
-static void check_and_free_fields(struct bpf_array *arr, void *val)
-{
-	if (map_value_has_timer(&arr->map))
-		bpf_timer_cancel_and_free(val + arr->map.timer_off);
-	bpf_obj_free_fields(arr->map.record, val);
-}
-
 /* Called from syscall or from eBPF program */
 static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
 				 u64 map_flags)
@@ -334,13 +327,13 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
 		return -EEXIST;
 
 	if (unlikely((map_flags & BPF_F_LOCK) &&
-		     !map_value_has_spin_lock(map)))
+		     !btf_record_has_field(map->record, BPF_SPIN_LOCK)))
 		return -EINVAL;
 
 	if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY) {
 		val = this_cpu_ptr(array->pptrs[index & array->index_mask]);
 		copy_map_value(map, val, value);
-		check_and_free_fields(array, val);
+		bpf_obj_free_fields(array->map.record, val);
 	} else {
 		val = array->value +
 			(u64)array->elem_size * (index & array->index_mask);
@@ -348,7 +341,7 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
 			copy_map_value_locked(map, val, value, false);
 		else
 			copy_map_value(map, val, value);
-		check_and_free_fields(array, val);
+		bpf_obj_free_fields(array->map.record, val);
 	}
 	return 0;
 }
@@ -385,7 +378,7 @@ int bpf_percpu_array_update(struct bpf_map *map, void *key, void *value,
 	pptr = array->pptrs[index & array->index_mask];
 	for_each_possible_cpu(cpu) {
 		copy_map_value_long(map, per_cpu_ptr(pptr, cpu), value + off);
-		check_and_free_fields(array, per_cpu_ptr(pptr, cpu));
+		bpf_obj_free_fields(array->map.record, per_cpu_ptr(pptr, cpu));
 		off += size;
 	}
 	rcu_read_unlock();
@@ -409,11 +402,11 @@ static void array_map_free_timers(struct bpf_map *map)
 	int i;
 
 	/* We don't reset or free fields other than timer on uref dropping to zero. */
-	if (!map_value_has_timer(map))
+	if (!btf_record_has_field(map->record, BPF_TIMER))
 		return;
 
 	for (i = 0; i < array->map.max_entries; i++)
-		bpf_timer_cancel_and_free(array_map_elem_ptr(array, i) + map->timer_off);
+		bpf_obj_free_timer(map->record, array_map_elem_ptr(array, i));
 }
 
 /* Called when map->refcnt goes to zero, either from workqueue or from syscall */
diff --git a/kernel/bpf/bpf_local_storage.c b/kernel/bpf/bpf_local_storage.c
index 93d9b1b17bc8..37020078d1c1 100644
--- a/kernel/bpf/bpf_local_storage.c
+++ b/kernel/bpf/bpf_local_storage.c
@@ -382,7 +382,7 @@ bpf_local_storage_update(void *owner, struct bpf_local_storage_map *smap,
 	if (unlikely((map_flags & ~BPF_F_LOCK) > BPF_EXIST) ||
 	    /* BPF_F_LOCK can only be used in a value with spin_lock */
 	    unlikely((map_flags & BPF_F_LOCK) &&
-		     !map_value_has_spin_lock(&smap->map)))
+		     !btf_record_has_field(smap->map.record, BPF_SPIN_LOCK)))
 		return ERR_PTR(-EINVAL);
 
 	if (gfp_flags == GFP_KERNEL && (map_flags & ~BPF_F_LOCK) != BPF_NOEXIST)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 199a2ab70632..33eb6828bd01 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3205,16 +3205,20 @@ enum {
 struct btf_field_info {
 	enum btf_field_type type;
 	u32 off;
-	u32 type_id;
+	struct {
+		u32 type_id;
+	} kptr;
 };
 
 static int btf_find_struct(const struct btf *btf, const struct btf_type *t,
-			   u32 off, int sz, struct btf_field_info *info)
+			   u32 off, int sz, enum btf_field_type field_type,
+			   struct btf_field_info *info)
 {
 	if (!__btf_type_is_struct(t))
 		return BTF_FIELD_IGNORE;
 	if (t->size != sz)
 		return BTF_FIELD_IGNORE;
+	info->type = field_type;
 	info->off = off;
 	return BTF_FIELD_FOUND;
 }
@@ -3251,28 +3255,66 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t,
 	if (!__btf_type_is_struct(t))
 		return -EINVAL;
 
-	info->type_id = res_id;
-	info->off = off;
 	info->type = type;
+	info->off = off;
+	info->kptr.type_id = res_id;
 	return BTF_FIELD_FOUND;
 }
 
-static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
-				 const char *name, int sz, int align,
-				 enum btf_field_info_type field_type,
+static int btf_get_field_type(const char *name, u32 field_mask, u32 *seen_mask,
+			      int *align, int *sz)
+{
+	int type = 0;
+
+	if (field_mask & BPF_SPIN_LOCK) {
+		if (!strcmp(name, "bpf_spin_lock")) {
+			if (*seen_mask & BPF_SPIN_LOCK)
+				return -E2BIG;
+			*seen_mask |= BPF_SPIN_LOCK;
+			type = BPF_SPIN_LOCK;
+			goto end;
+		}
+	}
+	if (field_mask & BPF_TIMER) {
+		if (!strcmp(name, "bpf_timer")) {
+			if (*seen_mask & BPF_TIMER)
+				return -E2BIG;
+			*seen_mask |= BPF_TIMER;
+			type = BPF_TIMER;
+			goto end;
+		}
+	}
+	/* Only return BPF_KPTR when all other types with matchable names fail */
+	if (field_mask & BPF_KPTR) {
+		type = BPF_KPTR_REF;
+		goto end;
+	}
+	return 0;
+end:
+	*sz = btf_field_type_size(type);
+	*align = btf_field_type_align(type);
+	return type;
+}
+
+static int btf_find_struct_field(const struct btf *btf,
+				 const struct btf_type *t, u32 field_mask,
 				 struct btf_field_info *info, int info_cnt)
 {
+	int ret, idx = 0, align, sz, field_type;
 	const struct btf_member *member;
 	struct btf_field_info tmp;
-	int ret, idx = 0;
-	u32 i, off;
+	u32 i, off, seen_mask = 0;
 
 	for_each_member(i, t, member) {
 		const struct btf_type *member_type = btf_type_by_id(btf,
 								    member->type);
 
-		if (name && strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
+		field_type = btf_get_field_type(__btf_name_by_offset(btf, member_type->name_off),
+						field_mask, &seen_mask, &align, &sz);
+		if (field_type == 0)
 			continue;
+		if (field_type < 0)
+			return field_type;
 
 		off = __btf_member_bit_offset(t, member);
 		if (off % 8)
@@ -3280,17 +3322,18 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
 			return -EINVAL;
 		off /= 8;
 		if (off % align)
-			return -EINVAL;
+			continue;
 
 		switch (field_type) {
-		case BTF_FIELD_SPIN_LOCK:
-		case BTF_FIELD_TIMER:
-			ret = btf_find_struct(btf, member_type, off, sz,
+		case BPF_SPIN_LOCK:
+		case BPF_TIMER:
+			ret = btf_find_struct(btf, member_type, off, sz, field_type,
 					      idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
 				return ret;
 			break;
-		case BTF_FIELD_KPTR:
+		case BPF_KPTR_UNREF:
+		case BPF_KPTR_REF:
 			ret = btf_find_kptr(btf, member_type, off, sz,
 					    idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
@@ -3310,37 +3353,41 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
 }
 
 static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
-				const char *name, int sz, int align,
-				enum btf_field_info_type field_type,
-				struct btf_field_info *info, int info_cnt)
+				u32 field_mask, struct btf_field_info *info,
+				int info_cnt)
 {
+	int ret, idx = 0, align, sz, field_type;
 	const struct btf_var_secinfo *vsi;
 	struct btf_field_info tmp;
-	int ret, idx = 0;
-	u32 i, off;
+	u32 i, off, seen_mask = 0;
 
 	for_each_vsi(i, t, vsi) {
 		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
 		const struct btf_type *var_type = btf_type_by_id(btf, var->type);
 
-		off = vsi->offset;
-
-		if (name && strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
+		field_type = btf_get_field_type(__btf_name_by_offset(btf, var_type->name_off),
+						field_mask, &seen_mask, &align, &sz);
+		if (field_type == 0)
 			continue;
+		if (field_type < 0)
+			return field_type;
+
+		off = vsi->offset;
 		if (vsi->size != sz)
 			continue;
 		if (off % align)
-			return -EINVAL;
+			continue;
 
 		switch (field_type) {
-		case BTF_FIELD_SPIN_LOCK:
-		case BTF_FIELD_TIMER:
-			ret = btf_find_struct(btf, var_type, off, sz,
+		case BPF_SPIN_LOCK:
+		case BPF_TIMER:
+			ret = btf_find_struct(btf, var_type, off, sz, field_type,
 					      idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
 				return ret;
 			break;
-		case BTF_FIELD_KPTR:
+		case BPF_KPTR_UNREF:
+		case BPF_KPTR_REF:
 			ret = btf_find_kptr(btf, var_type, off, sz,
 					    idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
@@ -3360,78 +3407,98 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 }
 
 static int btf_find_field(const struct btf *btf, const struct btf_type *t,
-			  enum btf_field_info_type field_type,
-			  struct btf_field_info *info, int info_cnt)
+			  u32 field_mask, struct btf_field_info *info,
+			  int info_cnt)
 {
-	const char *name;
-	int sz, align;
-
-	switch (field_type) {
-	case BTF_FIELD_SPIN_LOCK:
-		name = "bpf_spin_lock";
-		sz = sizeof(struct bpf_spin_lock);
-		align = __alignof__(struct bpf_spin_lock);
-		break;
-	case BTF_FIELD_TIMER:
-		name = "bpf_timer";
-		sz = sizeof(struct bpf_timer);
-		align = __alignof__(struct bpf_timer);
-		break;
-	case BTF_FIELD_KPTR:
-		name = NULL;
-		sz = sizeof(u64);
-		align = 8;
-		break;
-	default:
-		return -EFAULT;
-	}
-
 	if (__btf_type_is_struct(t))
-		return btf_find_struct_field(btf, t, name, sz, align, field_type, info, info_cnt);
+		return btf_find_struct_field(btf, t, field_mask, info, info_cnt);
 	else if (btf_type_is_datasec(t))
-		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info, info_cnt);
+		return btf_find_datasec_var(btf, t, field_mask, info, info_cnt);
 	return -EINVAL;
 }
 
-/* find 'struct bpf_spin_lock' in map value.
- * return >= 0 offset if found
- * and < 0 in case of error
- */
-int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
+static int btf_parse_kptr(const struct btf *btf, struct btf_field *field,
+			  struct btf_field_info *info)
 {
-	struct btf_field_info info;
+	struct module *mod = NULL;
+	const struct btf_type *t;
+	struct btf *kernel_btf;
 	int ret;
+	s32 id;
 
-	ret = btf_find_field(btf, t, BTF_FIELD_SPIN_LOCK, &info, 1);
-	if (ret < 0)
-		return ret;
-	if (!ret)
-		return -ENOENT;
-	return info.off;
-}
+	/* Find type in map BTF, and use it to look up the matching type
+	 * in vmlinux or module BTFs, by name and kind.
+	 */
+	t = btf_type_by_id(btf, info->kptr.type_id);
+	id = bpf_find_btf_id(__btf_name_by_offset(btf, t->name_off), BTF_INFO_KIND(t->info),
+			     &kernel_btf);
+	if (id < 0)
+		return id;
+
+	/* Find and stash the function pointer for the destruction function that
+	 * needs to be eventually invoked from the map free path.
+	 */
+	if (info->type == BPF_KPTR_REF) {
+		const struct btf_type *dtor_func;
+		const char *dtor_func_name;
+		unsigned long addr;
+		s32 dtor_btf_id;
+
+		/* This call also serves as a whitelist of allowed objects that
+		 * can be used as a referenced pointer and be stored in a map at
+		 * the same time.
+		 */
+		dtor_btf_id = btf_find_dtor_kfunc(kernel_btf, id);
+		if (dtor_btf_id < 0) {
+			ret = dtor_btf_id;
+			goto end_btf;
+		}
 
-int btf_find_timer(const struct btf *btf, const struct btf_type *t)
-{
-	struct btf_field_info info;
-	int ret;
+		dtor_func = btf_type_by_id(kernel_btf, dtor_btf_id);
+		if (!dtor_func) {
+			ret = -ENOENT;
+			goto end_btf;
+		}
 
-	ret = btf_find_field(btf, t, BTF_FIELD_TIMER, &info, 1);
-	if (ret < 0)
-		return ret;
-	if (!ret)
-		return -ENOENT;
-	return info.off;
+		if (btf_is_module(kernel_btf)) {
+			mod = btf_try_get_module(kernel_btf);
+			if (!mod) {
+				ret = -ENXIO;
+				goto end_btf;
+			}
+		}
+
+		/* We already verified dtor_func to be btf_type_is_func
+		 * in register_btf_id_dtor_kfuncs.
+		 */
+		dtor_func_name = __btf_name_by_offset(kernel_btf, dtor_func->name_off);
+		addr = kallsyms_lookup_name(dtor_func_name);
+		if (!addr) {
+			ret = -EINVAL;
+			goto end_mod;
+		}
+		field->kptr.dtor = (void *)addr;
+	}
+
+	field->kptr.btf_id = id;
+	field->kptr.btf = kernel_btf;
+	field->kptr.module = mod;
+	return 0;
+end_mod:
+	module_put(mod);
+end_btf:
+	btf_put(kernel_btf);
+	return ret;
 }
 
-struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t)
+struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t,
+				    u32 field_mask, u32 value_size)
 {
 	struct btf_field_info info_arr[BTF_FIELDS_MAX];
-	struct btf *kernel_btf = NULL;
-	struct module *mod = NULL;
 	struct btf_record *rec;
 	int ret, i, cnt;
 
-	ret = btf_find_field(btf, t, BTF_FIELD_KPTR, info_arr, ARRAY_SIZE(info_arr));
+	ret = btf_find_field(btf, t, field_mask, info_arr, ARRAY_SIZE(info_arr));
 	if (ret < 0)
 		return ERR_PTR(ret);
 	if (!ret)
@@ -3441,80 +3508,44 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
 	rec = kzalloc(offsetof(struct btf_record, fields[cnt]), GFP_KERNEL | __GFP_NOWARN);
 	if (!rec)
 		return ERR_PTR(-ENOMEM);
-	rec->cnt = 0;
-	for (i = 0; i < cnt; i++) {
-		const struct btf_type *t;
-		s32 id;
 
-		/* Find type in map BTF, and use it to look up the matching type
-		 * in vmlinux or module BTFs, by name and kind.
-		 */
-		t = btf_type_by_id(btf, info_arr[i].type_id);
-		id = bpf_find_btf_id(__btf_name_by_offset(btf, t->name_off), BTF_INFO_KIND(t->info),
-				     &kernel_btf);
-		if (id < 0) {
-			ret = id;
+	rec->spin_lock_off = -EINVAL;
+	rec->timer_off = -EINVAL;
+	for (i = 0; i < cnt; i++) {
+		if (info_arr[i].off + btf_field_type_size(info_arr[i].type) > value_size) {
+			WARN_ONCE(1, "verifier bug off %d size %d", info_arr[i].off, value_size);
+			ret = -EFAULT;
 			goto end;
 		}
 
-		/* Find and stash the function pointer for the destruction function that
-		 * needs to be eventually invoked from the map free path.
-		 */
-		if (info_arr[i].type == BPF_KPTR_REF) {
-			const struct btf_type *dtor_func;
-			const char *dtor_func_name;
-			unsigned long addr;
-			s32 dtor_btf_id;
-
-			/* This call also serves as a whitelist of allowed objects that
-			 * can be used as a referenced pointer and be stored in a map at
-			 * the same time.
-			 */
-			dtor_btf_id = btf_find_dtor_kfunc(kernel_btf, id);
-			if (dtor_btf_id < 0) {
-				ret = dtor_btf_id;
-				goto end_btf;
-			}
-
-			dtor_func = btf_type_by_id(kernel_btf, dtor_btf_id);
-			if (!dtor_func) {
-				ret = -ENOENT;
-				goto end_btf;
-			}
-
-			if (btf_is_module(kernel_btf)) {
-				mod = btf_try_get_module(kernel_btf);
-				if (!mod) {
-					ret = -ENXIO;
-					goto end_btf;
-				}
-			}
-
-			/* We already verified dtor_func to be btf_type_is_func
-			 * in register_btf_id_dtor_kfuncs.
-			 */
-			dtor_func_name = __btf_name_by_offset(kernel_btf, dtor_func->name_off);
-			addr = kallsyms_lookup_name(dtor_func_name);
-			if (!addr) {
-				ret = -EINVAL;
-				goto end_mod;
-			}
-			rec->fields[i].kptr.dtor = (void *)addr;
-		}
-
+		rec->field_mask |= info_arr[i].type;
 		rec->fields[i].offset = info_arr[i].off;
 		rec->fields[i].type = info_arr[i].type;
-		rec->fields[i].kptr.btf_id = id;
-		rec->fields[i].kptr.btf = kernel_btf;
-		rec->fields[i].kptr.module = mod;
+
+		switch (info_arr[i].type) {
+		case BPF_SPIN_LOCK:
+			WARN_ON_ONCE(rec->spin_lock_off >= 0);
+			/* Cache offset for faster lookup at runtime */
+			rec->spin_lock_off = rec->fields[i].offset;
+			break;
+		case BPF_TIMER:
+			WARN_ON_ONCE(rec->timer_off >= 0);
+			/* Cache offset for faster lookup at runtime */
+			rec->timer_off = rec->fields[i].offset;
+			break;
+		case BPF_KPTR_UNREF:
+		case BPF_KPTR_REF:
+			ret = btf_parse_kptr(btf, &rec->fields[i], &info_arr[i]);
+			if (ret < 0)
+				goto end;
+			break;
+		default:
+			ret = -EFAULT;
+			goto end;
+		}
 		rec->cnt++;
 	}
-	rec->cnt = cnt;
 	return rec;
-end_mod:
-	module_put(mod);
-end_btf:
-	btf_put(kernel_btf);
 end:
 	btf_record_free(rec);
 	return ERR_PTR(ret);
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 6e4120e98a2c..15e2945f131b 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -222,7 +222,7 @@ static void htab_free_prealloced_timers(struct bpf_htab *htab)
 	u32 num_entries = htab->map.max_entries;
 	int i;
 
-	if (!map_value_has_timer(&htab->map))
+	if (!btf_record_has_field(htab->map.record, BPF_TIMER))
 		return;
 	if (htab_has_extra_elems(htab))
 		num_entries += num_possible_cpus();
@@ -231,9 +231,7 @@ static void htab_free_prealloced_timers(struct bpf_htab *htab)
 		struct htab_elem *elem;
 
 		elem = get_htab_elem(htab, i);
-		bpf_timer_cancel_and_free(elem->key +
-					  round_up(htab->map.key_size, 8) +
-					  htab->map.timer_off);
+		bpf_obj_free_timer(htab->map.record, elem->key + round_up(htab->map.key_size, 8));
 		cond_resched();
 	}
 }
@@ -763,8 +761,6 @@ static void check_and_free_fields(struct bpf_htab *htab,
 {
 	void *map_value = elem->key + round_up(htab->map.key_size, 8);
 
-	if (map_value_has_timer(&htab->map))
-		bpf_timer_cancel_and_free(map_value + htab->map.timer_off);
 	bpf_obj_free_fields(htab->map.record, map_value);
 }
 
@@ -1089,7 +1085,7 @@ static int htab_map_update_elem(struct bpf_map *map, void *key, void *value,
 	head = &b->head;
 
 	if (unlikely(map_flags & BPF_F_LOCK)) {
-		if (unlikely(!map_value_has_spin_lock(map)))
+		if (unlikely(!btf_record_has_field(map->record, BPF_SPIN_LOCK)))
 			return -EINVAL;
 		/* find an element without taking the bucket lock */
 		l_old = lookup_nulls_elem_raw(head, hash, key, key_size,
@@ -1472,12 +1468,8 @@ static void htab_free_malloced_timers(struct bpf_htab *htab)
 		struct htab_elem *l;
 
 		hlist_nulls_for_each_entry(l, n, head, hash_node) {
-			/* We don't reset or free kptr on uref dropping to zero,
-			 * hence just free timer.
-			 */
-			bpf_timer_cancel_and_free(l->key +
-						  round_up(htab->map.key_size, 8) +
-						  htab->map.timer_off);
+			/* We only free timer on uref dropping to zero */
+			bpf_obj_free_timer(htab->map.record, l->key + round_up(htab->map.key_size, 8));
 		}
 		cond_resched_rcu();
 	}
@@ -1488,8 +1480,8 @@ static void htab_map_free_timers(struct bpf_map *map)
 {
 	struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
 
-	/* We don't reset or free kptr on uref dropping to zero. */
-	if (!map_value_has_timer(&htab->map))
+	/* We only free timer on uref dropping to zero */
+	if (!btf_record_has_field(htab->map.record, BPF_TIMER))
 		return;
 	if (!htab_is_prealloc(htab))
 		htab_free_malloced_timers(htab);
@@ -1673,7 +1665,7 @@ __htab_map_lookup_and_delete_batch(struct bpf_map *map,
 
 	elem_map_flags = attr->batch.elem_flags;
 	if ((elem_map_flags & ~BPF_F_LOCK) ||
-	    ((elem_map_flags & BPF_F_LOCK) && !map_value_has_spin_lock(map)))
+	    ((elem_map_flags & BPF_F_LOCK) && !btf_record_has_field(map->record, BPF_SPIN_LOCK)))
 		return -EINVAL;
 
 	map_flags = attr->batch.flags;
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 124fd199ce5c..283f55bbeb70 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -366,9 +366,9 @@ void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
 	struct bpf_spin_lock *lock;
 
 	if (lock_src)
-		lock = src + map->spin_lock_off;
+		lock = src + map->record->spin_lock_off;
 	else
-		lock = dst + map->spin_lock_off;
+		lock = dst + map->record->spin_lock_off;
 	preempt_disable();
 	__bpf_spin_lock_irqsave(lock);
 	copy_map_value(map, dst, src);
@@ -1169,7 +1169,7 @@ BPF_CALL_3(bpf_timer_init, struct bpf_timer_kern *, timer, struct bpf_map *, map
 		ret = -ENOMEM;
 		goto out;
 	}
-	t->value = (void *)timer - map->timer_off;
+	t->value = (void *)timer - map->record->timer_off;
 	t->map = map;
 	t->prog = NULL;
 	rcu_assign_pointer(t->callback_fn, NULL);
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index 098cf336fae6..e90d9f63edc5 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -151,7 +151,7 @@ static int cgroup_storage_update_elem(struct bpf_map *map, void *key,
 		return -EINVAL;
 
 	if (unlikely((flags & BPF_F_LOCK) &&
-		     !map_value_has_spin_lock(map)))
+		     !btf_record_has_field(map->record, BPF_SPIN_LOCK)))
 		return -EINVAL;
 
 	storage = cgroup_storage_lookup((struct bpf_cgroup_storage_map *)map,
diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
index d6c662183f88..8ca0cca39d49 100644
--- a/kernel/bpf/map_in_map.c
+++ b/kernel/bpf/map_in_map.c
@@ -29,7 +29,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 		return ERR_PTR(-ENOTSUPP);
 	}
 
-	if (map_value_has_spin_lock(inner_map)) {
+	if (btf_record_has_field(inner_map->record, BPF_SPIN_LOCK)) {
 		fdput(f);
 		return ERR_PTR(-ENOTSUPP);
 	}
@@ -50,8 +50,6 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 	inner_map_meta->value_size = inner_map->value_size;
 	inner_map_meta->map_flags = inner_map->map_flags;
 	inner_map_meta->max_entries = inner_map->max_entries;
-	inner_map_meta->spin_lock_off = inner_map->spin_lock_off;
-	inner_map_meta->timer_off = inner_map->timer_off;
 	inner_map_meta->record = btf_record_dup(inner_map->record);
 	if (IS_ERR(inner_map_meta->record)) {
 		/* btf_record_dup returns NULL or valid pointer in case of
@@ -92,7 +90,6 @@ bool bpf_map_meta_equal(const struct bpf_map *meta0,
 	return meta0->map_type == meta1->map_type &&
 		meta0->key_size == meta1->key_size &&
 		meta0->value_size == meta1->value_size &&
-		meta0->timer_off == meta1->timer_off &&
 		meta0->map_flags == meta1->map_flags &&
 		btf_record_equal(meta0->record, meta1->record);
 }
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 2d4bba45fd3c..73822d36aa56 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -527,6 +527,9 @@ void btf_record_free(struct btf_record *rec)
 		return;
 	for (i = 0; i < rec->cnt; i++) {
 		switch (rec->fields[i].type) {
+		case BPF_SPIN_LOCK:
+		case BPF_TIMER:
+			break;
 		case BPF_KPTR_UNREF:
 		case BPF_KPTR_REF:
 			if (rec->fields[i].kptr.module)
@@ -564,6 +567,9 @@ struct btf_record *btf_record_dup(const struct btf_record *rec)
 	new_rec->cnt = 0;
 	for (i = 0; i < rec->cnt; i++) {
 		switch (fields[i].type) {
+		case BPF_SPIN_LOCK:
+		case BPF_TIMER:
+			break;
 		case BPF_KPTR_UNREF:
 		case BPF_KPTR_REF:
 			btf_get(fields[i].kptr.btf);
@@ -600,6 +606,13 @@ bool btf_record_equal(const struct btf_record *rec_a, const struct btf_record *r
 	return !memcmp(rec_a, rec_b, size);
 }
 
+void bpf_obj_free_timer(const struct btf_record *rec, void *obj)
+{
+	if (WARN_ON_ONCE(!btf_record_has_field(rec, BPF_TIMER)))
+		return;
+	bpf_timer_cancel_and_free(obj + rec->timer_off);
+}
+
 void bpf_obj_free_fields(const struct btf_record *rec, void *obj)
 {
 	const struct btf_field *fields;
@@ -613,6 +626,11 @@ void bpf_obj_free_fields(const struct btf_record *rec, void *obj)
 		void *field_ptr = obj + field->offset;
 
 		switch (fields[i].type) {
+		case BPF_SPIN_LOCK:
+			break;
+		case BPF_TIMER:
+			bpf_timer_cancel_and_free(field_ptr);
+			break;
 		case BPF_KPTR_UNREF:
 			WRITE_ONCE(*(u64 *)field_ptr, 0);
 			break;
@@ -798,8 +816,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
 	struct bpf_map *map = filp->private_data;
 	int err;
 
-	if (!map->ops->map_mmap || map_value_has_spin_lock(map) ||
-	    map_value_has_timer(map) || !IS_ERR_OR_NULL(map->record))
+	if (!map->ops->map_mmap || !IS_ERR_OR_NULL(map->record))
 		return -ENOTSUPP;
 
 	if (!(vma->vm_flags & VM_SHARED))
@@ -954,13 +971,13 @@ static void map_field_offs_swap(void *_a, void *_b, int size, const void *priv)
 
 static int bpf_map_alloc_off_arr(struct bpf_map *map)
 {
-	bool has_spin_lock = map_value_has_spin_lock(map);
-	bool has_timer = map_value_has_timer(map);
 	bool has_fields = !IS_ERR_OR_NULL(map);
 	struct btf_field_offs *fo;
-	u32 i;
+	struct btf_record *rec;
+	u32 i, *off;
+	u8 *sz;
 
-	if (!has_spin_lock && !has_timer && !has_fields) {
+	if (!has_fields) {
 		map->field_offs = NULL;
 		return 0;
 	}
@@ -970,32 +987,14 @@ static int bpf_map_alloc_off_arr(struct bpf_map *map)
 		return -ENOMEM;
 	map->field_offs = fo;
 
-	fo->cnt = 0;
-	if (has_spin_lock) {
-		i = fo->cnt;
-
-		fo->field_off[i] = map->spin_lock_off;
-		fo->field_sz[i] = sizeof(struct bpf_spin_lock);
-		fo->cnt++;
-	}
-	if (has_timer) {
-		i = fo->cnt;
-
-		fo->field_off[i] = map->timer_off;
-		fo->field_sz[i] = sizeof(struct bpf_timer);
-		fo->cnt++;
-	}
-	if (has_fields) {
-		struct btf_record *rec = map->record;
-		u32 *off = &fo->field_off[fo->cnt];
-		u8 *sz = &fo->field_sz[fo->cnt];
-
-		for (i = 0; i < rec->cnt; i++) {
-			*off++ = rec->fields[i].offset;
-			*sz++ = btf_field_type_size(rec->fields[i].type);
-		}
-		fo->cnt += rec->cnt;
+	rec = map->record;
+	off = &fo->field_off[fo->cnt];
+	sz = &fo->field_sz[fo->cnt];
+	for (i = 0; i < rec->cnt; i++) {
+		*off++ = rec->fields[i].offset;
+		*sz++ = btf_field_type_size(rec->fields[i].type);
 	}
+	fo->cnt = rec->cnt;
 
 	if (fo->cnt == 1)
 		return 0;
@@ -1026,39 +1025,8 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 	if (!value_type || value_size != map->value_size)
 		return -EINVAL;
 
-	map->spin_lock_off = btf_find_spin_lock(btf, value_type);
-
-	if (map_value_has_spin_lock(map)) {
-		if (map->map_flags & BPF_F_RDONLY_PROG)
-			return -EACCES;
-		if (map->map_type != BPF_MAP_TYPE_HASH &&
-		    map->map_type != BPF_MAP_TYPE_ARRAY &&
-		    map->map_type != BPF_MAP_TYPE_CGROUP_STORAGE &&
-		    map->map_type != BPF_MAP_TYPE_SK_STORAGE &&
-		    map->map_type != BPF_MAP_TYPE_INODE_STORAGE &&
-		    map->map_type != BPF_MAP_TYPE_TASK_STORAGE &&
-		    map->map_type != BPF_MAP_TYPE_CGRP_STORAGE)
-			return -ENOTSUPP;
-		if (map->spin_lock_off + sizeof(struct bpf_spin_lock) >
-		    map->value_size) {
-			WARN_ONCE(1,
-				  "verifier bug spin_lock_off %d value_size %d\n",
-				  map->spin_lock_off, map->value_size);
-			return -EFAULT;
-		}
-	}
-
-	map->timer_off = btf_find_timer(btf, value_type);
-	if (map_value_has_timer(map)) {
-		if (map->map_flags & BPF_F_RDONLY_PROG)
-			return -EACCES;
-		if (map->map_type != BPF_MAP_TYPE_HASH &&
-		    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
-		    map->map_type != BPF_MAP_TYPE_ARRAY)
-			return -EOPNOTSUPP;
-	}
-
-	map->record = btf_parse_fields(btf, value_type);
+	map->record = btf_parse_fields(btf, value_type, BPF_SPIN_LOCK | BPF_TIMER | BPF_KPTR,
+				       map->value_size);
 	if (!IS_ERR_OR_NULL(map->record)) {
 		int i;
 
@@ -1074,6 +1042,26 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			switch (map->record->field_mask & (1 << i)) {
 			case 0:
 				continue;
+			case BPF_SPIN_LOCK:
+				if (map->map_type != BPF_MAP_TYPE_HASH &&
+				    map->map_type != BPF_MAP_TYPE_ARRAY &&
+				    map->map_type != BPF_MAP_TYPE_CGROUP_STORAGE &&
+				    map->map_type != BPF_MAP_TYPE_SK_STORAGE &&
+				    map->map_type != BPF_MAP_TYPE_INODE_STORAGE &&
+				    map->map_type != BPF_MAP_TYPE_TASK_STORAGE &&
+				    map->map_type != BPF_MAP_TYPE_CGRP_STORAGE) {
+					ret = -EOPNOTSUPP;
+					goto free_map_tab;
+				}
+				break;
+			case BPF_TIMER:
+				if (map->map_type != BPF_MAP_TYPE_HASH &&
+				    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
+				    map->map_type != BPF_MAP_TYPE_ARRAY) {
+					return -EOPNOTSUPP;
+					goto free_map_tab;
+				}
+				break;
 			case BPF_KPTR_UNREF:
 			case BPF_KPTR_REF:
 				if (map->map_type != BPF_MAP_TYPE_HASH &&
@@ -1153,8 +1141,6 @@ static int map_create(union bpf_attr *attr)
 	mutex_init(&map->freeze_mutex);
 	spin_lock_init(&map->owner.lock);
 
-	map->spin_lock_off = -EINVAL;
-	map->timer_off = -EINVAL;
 	if (attr->btf_key_type_id || attr->btf_value_type_id ||
 	    /* Even the map's value is a kernel's struct,
 	     * the bpf_prog.o must have BTF to begin with
@@ -1368,7 +1354,7 @@ static int map_lookup_elem(union bpf_attr *attr)
 	}
 
 	if ((attr->flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map)) {
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		err = -EINVAL;
 		goto err_put;
 	}
@@ -1441,7 +1427,7 @@ static int map_update_elem(union bpf_attr *attr, bpfptr_t uattr)
 	}
 
 	if ((attr->flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map)) {
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		err = -EINVAL;
 		goto err_put;
 	}
@@ -1604,7 +1590,7 @@ int generic_map_delete_batch(struct bpf_map *map,
 		return -EINVAL;
 
 	if ((attr->batch.elem_flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map)) {
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		return -EINVAL;
 	}
 
@@ -1661,7 +1647,7 @@ int generic_map_update_batch(struct bpf_map *map,
 		return -EINVAL;
 
 	if ((attr->batch.elem_flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map)) {
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		return -EINVAL;
 	}
 
@@ -1724,7 +1710,7 @@ int generic_map_lookup_batch(struct bpf_map *map,
 		return -EINVAL;
 
 	if ((attr->batch.elem_flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map))
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK))
 		return -EINVAL;
 
 	value_size = bpf_map_value_size(map);
@@ -1846,7 +1832,7 @@ static int map_lookup_and_delete_elem(union bpf_attr *attr)
 	}
 
 	if ((attr->flags & BPF_F_LOCK) &&
-	    !map_value_has_spin_lock(map)) {
+	    !btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		err = -EINVAL;
 		goto err_put;
 	}
@@ -1917,8 +1903,7 @@ static int map_freeze(const union bpf_attr *attr)
 	if (IS_ERR(map))
 		return PTR_ERR(map);
 
-	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS ||
-	    map_value_has_timer(map) || !IS_ERR_OR_NULL(map->record)) {
+	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS || !IS_ERR_OR_NULL(map->record)) {
 		fdput(f);
 		return -ENOTSUPP;
 	}
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index f233cbfce28c..2962b842b4c7 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -454,7 +454,7 @@ static bool reg_type_not_null(enum bpf_reg_type type)
 static bool reg_may_point_to_spin_lock(const struct bpf_reg_state *reg)
 {
 	return reg->type == PTR_TO_MAP_VALUE &&
-		map_value_has_spin_lock(reg->map_ptr);
+	       btf_record_has_field(reg->map_ptr->record, BPF_SPIN_LOCK);
 }
 
 static bool type_is_rdonly_mem(u32 type)
@@ -1388,7 +1388,7 @@ static void mark_ptr_not_null_reg(struct bpf_reg_state *reg)
 			/* transfer reg's id which is unique for every map_lookup_elem
 			 * as UID of the inner map.
 			 */
-			if (map_value_has_timer(map->inner_map_meta))
+			if (btf_record_has_field(map->inner_map_meta->record, BPF_TIMER))
 				reg->map_uid = reg->id;
 		} else if (map->map_type == BPF_MAP_TYPE_XSKMAP) {
 			reg->type = PTR_TO_XDP_SOCK;
@@ -3817,29 +3817,6 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 	if (err)
 		return err;
 
-	if (map_value_has_spin_lock(map)) {
-		u32 lock = map->spin_lock_off;
-
-		/* if any part of struct bpf_spin_lock can be touched by
-		 * load/store reject this program.
-		 * To check that [x1, x2) overlaps with [y1, y2)
-		 * it is sufficient to check x1 < y2 && y1 < x2.
-		 */
-		if (reg->smin_value + off < lock + sizeof(struct bpf_spin_lock) &&
-		     lock < reg->umax_value + off + size) {
-			verbose(env, "bpf_spin_lock cannot be accessed directly by load/store\n");
-			return -EACCES;
-		}
-	}
-	if (map_value_has_timer(map)) {
-		u32 t = map->timer_off;
-
-		if (reg->smin_value + off < t + sizeof(struct bpf_timer) &&
-		     t < reg->umax_value + off + size) {
-			verbose(env, "bpf_timer cannot be accessed directly by load/store\n");
-			return -EACCES;
-		}
-	}
 	if (IS_ERR_OR_NULL(map->record))
 		return 0;
 	rec = map->record;
@@ -3847,6 +3824,10 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 		struct btf_field *field = &rec->fields[i];
 		u32 p = field->offset;
 
+		/* If any part of a field  can be touched by load/store, reject
+		 * this program. To check that [x1, x2) overlaps with [y1, y2),
+		 * it is sufficient to check x1 < y2 && y1 < x2.
+		 */
 		if (reg->smin_value + off < p + btf_field_type_size(field->type) &&
 		    p < reg->umax_value + off + size) {
 			switch (field->type) {
@@ -3871,7 +3852,8 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 				}
 				break;
 			default:
-				verbose(env, "field cannot be accessed directly by load/store\n");
+				verbose(env, "%s cannot be accessed directly by load/store\n",
+					btf_field_type_name(field->type));
 				return -EACCES;
 			}
 		}
@@ -5440,24 +5422,13 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 			map->name);
 		return -EINVAL;
 	}
-	if (!map_value_has_spin_lock(map)) {
-		if (map->spin_lock_off == -E2BIG)
-			verbose(env,
-				"map '%s' has more than one 'struct bpf_spin_lock'\n",
-				map->name);
-		else if (map->spin_lock_off == -ENOENT)
-			verbose(env,
-				"map '%s' doesn't have 'struct bpf_spin_lock'\n",
-				map->name);
-		else
-			verbose(env,
-				"map '%s' is not a struct type or bpf_spin_lock is mangled\n",
-				map->name);
+	if (!btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
+		verbose(env, "map '%s' has no valid bpf_spin_lock\n", map->name);
 		return -EINVAL;
 	}
-	if (map->spin_lock_off != val + reg->off) {
-		verbose(env, "off %lld doesn't point to 'struct bpf_spin_lock'\n",
-			val + reg->off);
+	if (map->record->spin_lock_off != val + reg->off) {
+		verbose(env, "off %lld doesn't point to 'struct bpf_spin_lock' that is at %d\n",
+			val + reg->off, map->record->spin_lock_off);
 		return -EINVAL;
 	}
 	if (is_lock) {
@@ -5500,24 +5471,13 @@ static int process_timer_func(struct bpf_verifier_env *env, int regno,
 			map->name);
 		return -EINVAL;
 	}
-	if (!map_value_has_timer(map)) {
-		if (map->timer_off == -E2BIG)
-			verbose(env,
-				"map '%s' has more than one 'struct bpf_timer'\n",
-				map->name);
-		else if (map->timer_off == -ENOENT)
-			verbose(env,
-				"map '%s' doesn't have 'struct bpf_timer'\n",
-				map->name);
-		else
-			verbose(env,
-				"map '%s' is not a struct type or bpf_timer is mangled\n",
-				map->name);
+	if (!btf_record_has_field(map->record, BPF_TIMER)) {
+		verbose(env, "map '%s' has no valid bpf_timer\n", map->name);
 		return -EINVAL;
 	}
-	if (map->timer_off != val + reg->off) {
+	if (map->record->timer_off != val + reg->off) {
 		verbose(env, "off %lld doesn't point to 'struct bpf_timer' that is at %d\n",
-			val + reg->off, map->timer_off);
+			val + reg->off, map->record->timer_off);
 		return -EINVAL;
 	}
 	if (meta->map_ptr) {
@@ -7469,7 +7429,7 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 		regs[BPF_REG_0].map_uid = meta.map_uid;
 		regs[BPF_REG_0].type = PTR_TO_MAP_VALUE | ret_flag;
 		if (!type_may_be_null(ret_type) &&
-		    map_value_has_spin_lock(meta.map_ptr)) {
+		    btf_record_has_field(meta.map_ptr->record, BPF_SPIN_LOCK)) {
 			regs[BPF_REG_0].id = ++env->id_gen;
 		}
 		break;
@@ -10380,7 +10340,7 @@ static int check_ld_imm(struct bpf_verifier_env *env, struct bpf_insn *insn)
 	    insn->src_reg == BPF_PSEUDO_MAP_IDX_VALUE) {
 		dst_reg->type = PTR_TO_MAP_VALUE;
 		dst_reg->off = aux->map_off;
-		if (map_value_has_spin_lock(map))
+		if (btf_record_has_field(map->record, BPF_SPIN_LOCK))
 			dst_reg->id = ++env->id_gen;
 	} else if (insn->src_reg == BPF_PSEUDO_MAP_FD ||
 		   insn->src_reg == BPF_PSEUDO_MAP_IDX) {
@@ -12658,7 +12618,7 @@ static int check_map_prog_compatibility(struct bpf_verifier_env *env,
 {
 	enum bpf_prog_type prog_type = resolve_prog_type(prog);
 
-	if (map_value_has_spin_lock(map)) {
+	if (btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
 		if (prog_type == BPF_PROG_TYPE_SOCKET_FILTER) {
 			verbose(env, "socket filter progs cannot use bpf_spin_lock yet\n");
 			return -EINVAL;
@@ -12675,7 +12635,7 @@ static int check_map_prog_compatibility(struct bpf_verifier_env *env,
 		}
 	}
 
-	if (map_value_has_timer(map)) {
+	if (btf_record_has_field(map->record, BPF_TIMER)) {
 		if (is_tracing_prog_type(prog_type)) {
 			verbose(env, "tracing progs cannot use bpf_timer yet\n");
 			return -EINVAL;
diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c
index 49884e7de080..9d2288c0736e 100644
--- a/net/core/bpf_sk_storage.c
+++ b/net/core/bpf_sk_storage.c
@@ -147,7 +147,7 @@ bpf_sk_storage_clone_elem(struct sock *newsk,
 	if (!copy_selem)
 		return NULL;
 
-	if (map_value_has_spin_lock(&smap->map))
+	if (btf_record_has_field(smap->map.record, BPF_SPIN_LOCK))
 		copy_map_value_locked(&smap->map, SDATA(copy_selem)->data,
 				      SDATA(selem)->data, true);
 	else
@@ -566,7 +566,7 @@ static int diag_get(struct bpf_local_storage_data *sdata, struct sk_buff *skb)
 	if (!nla_value)
 		goto errout;
 
-	if (map_value_has_spin_lock(&smap->map))
+	if (btf_record_has_field(smap->map.record, BPF_SPIN_LOCK))
 		copy_map_value_locked(&smap->map, nla_data(nla_value),
 				      sdata->data, true);
 	else
-- 
2.38.1

[PATCH bpf-next v3 08/24] bpf: Refactor map->off_arr handling

[Kumar Kartikeya Dwivedi]

Refactor map->off_arr handling into generic functions that can work on
their own without hardcoding map specific code. The btf_fields_offs
structure is now returned from btf_parse_field_offs, which can be reused
later for types in program BTF.

All functions like copy_map_value, zero_map_value call generic
underlying functions so that they can also be reused later for copying
to values allocated in programs which encode specific fields.

Later, some helper functions will also require access to this
btf_field_offs structure to be able to skip over special fields at
runtime.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h  | 41 ++++++++++++++-----------
 include/linux/btf.h  |  1 +
 kernel/bpf/btf.c     | 55 +++++++++++++++++++++++++++++++++
 kernel/bpf/syscall.c | 73 ++++++--------------------------------------
 4 files changed, 89 insertions(+), 81 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 762e9a20c358..02967fbdf712 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -340,55 +340,62 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size)
 }
 
 /* copy everything but bpf_spin_lock, bpf_timer, and kptrs. There could be one of each. */
-static inline void __copy_map_value(struct bpf_map *map, void *dst, void *src, bool long_memcpy)
+static inline void bpf_obj_memcpy(struct btf_field_offs *foffs,
+				  void *dst, void *src, u32 size,
+				  bool long_memcpy)
 {
 	u32 curr_off = 0;
 	int i;
 
-	if (likely(!map->field_offs)) {
+	if (likely(!foffs)) {
 		if (long_memcpy)
-			bpf_long_memcpy(dst, src, round_up(map->value_size, 8));
+			bpf_long_memcpy(dst, src, round_up(size, 8));
 		else
-			memcpy(dst, src, map->value_size);
+			memcpy(dst, src, size);
 		return;
 	}
 
-	for (i = 0; i < map->field_offs->cnt; i++) {
-		u32 next_off = map->field_offs->field_off[i];
+	for (i = 0; i < foffs->cnt; i++) {
+		u32 next_off = foffs->field_off[i];
 
 		memcpy(dst + curr_off, src + curr_off, next_off - curr_off);
-		curr_off += map->field_offs->field_sz[i];
+		curr_off += foffs->field_sz[i];
 	}
-	memcpy(dst + curr_off, src + curr_off, map->value_size - curr_off);
+	memcpy(dst + curr_off, src + curr_off, size - curr_off);
 }
 
 static inline void copy_map_value(struct bpf_map *map, void *dst, void *src)
 {
-	__copy_map_value(map, dst, src, false);
+	bpf_obj_memcpy(map->field_offs, dst, src, map->value_size, false);
 }
 
 static inline void copy_map_value_long(struct bpf_map *map, void *dst, void *src)
 {
-	__copy_map_value(map, dst, src, true);
+	bpf_obj_memcpy(map->field_offs, dst, src, map->value_size, true);
 }
 
-static inline void zero_map_value(struct bpf_map *map, void *dst)
+static inline void bpf_obj_memzero(struct btf_field_offs *foffs, void *dst, u32 size)
 {
 	u32 curr_off = 0;
 	int i;
 
-	if (likely(!map->field_offs)) {
-		memset(dst, 0, map->value_size);
+	if (likely(!foffs)) {
+		memset(dst, 0, size);
 		return;
 	}
 
-	for (i = 0; i < map->field_offs->cnt; i++) {
-		u32 next_off = map->field_offs->field_off[i];
+	for (i = 0; i < foffs->cnt; i++) {
+		u32 next_off = foffs->field_off[i];
 
 		memset(dst + curr_off, 0, next_off - curr_off);
-		curr_off += map->field_offs->field_sz[i];
+		curr_off += foffs->field_sz[i];
 	}
-	memset(dst + curr_off, 0, map->value_size - curr_off);
+	memset(dst + curr_off, 0, size - curr_off);
+}
+
+static inline void zero_map_value(struct bpf_map *map, void *dst)
+{
+	bpf_obj_memzero(map->field_offs, dst, map->value_size);
 }
 
 void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
diff --git a/include/linux/btf.h b/include/linux/btf.h
index 282006abd062..d80345fa566b 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -165,6 +165,7 @@ int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
 int btf_find_timer(const struct btf *btf, const struct btf_type *t);
 struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t,
 				    u32 field_mask, u32 value_size);
+struct btf_field_offs *btf_parse_field_offs(struct btf_record *rec);
 bool btf_type_is_void(const struct btf_type *t);
 s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
 const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 33eb6828bd01..de8a93e70f5e 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3551,6 +3551,61 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
 	return ERR_PTR(ret);
 }
 
+static int btf_field_offs_cmp(const void *_a, const void *_b, const void *priv)
+{
+	const u32 a = *(const u32 *)_a;
+	const u32 b = *(const u32 *)_b;
+
+	if (a < b)
+		return -1;
+	else if (a > b)
+		return 1;
+	return 0;
+}
+
+static void btf_field_offs_swap(void *_a, void *_b, int size, const void *priv)
+{
+	struct btf_field_offs *foffs = (void *)priv;
+	u32 *off_base = foffs->field_off;
+	u32 *a = _a, *b = _b;
+	u8 *sz_a, *sz_b;
+
+	sz_a = foffs->field_sz + (a - off_base);
+	sz_b = foffs->field_sz + (b - off_base);
+
+	swap(*a, *b);
+	swap(*sz_a, *sz_b);
+}
+
+struct btf_field_offs *btf_parse_field_offs(struct btf_record *rec)
+{
+	struct btf_field_offs *foffs;
+	u32 i, *off;
+	u8 *sz;
+
+	BUILD_BUG_ON(ARRAY_SIZE(foffs->field_off) != ARRAY_SIZE(foffs->field_sz));
+	if (IS_ERR_OR_NULL(rec) || WARN_ON_ONCE(rec->cnt > sizeof(foffs->field_off)))
+		return NULL;
+
+	foffs = kzalloc(sizeof(*foffs), GFP_KERNEL | __GFP_NOWARN);
+	if (!foffs)
+		return ERR_PTR(-ENOMEM);
+
+	off = &foffs->field_off[0];
+	sz = &foffs->field_sz[0];
+	for (i = 0; i < rec->cnt; i++) {
+		off[i] = rec->fields[i].offset;
+		sz[i] = btf_field_type_size(rec->fields[i].type);
+	}
+	foffs->cnt = rec->cnt;
+
+	if (foffs->cnt == 1)
+		return foffs;
+	sort_r(foffs->field_off, foffs->cnt, sizeof(foffs->field_off[0]),
+	       btf_field_offs_cmp, btf_field_offs_swap, foffs);
+	return foffs;
+}
+
 static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
 			      u32 type_id, void *data, u8 bits_offset,
 			      struct btf_show *show)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 73822d36aa56..85532d301124 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -943,66 +943,6 @@ int map_check_no_btf(const struct bpf_map *map,
 	return -ENOTSUPP;
 }
 
-static int map_field_offs_cmp(const void *_a, const void *_b, const void *priv)
-{
-	const u32 a = *(const u32 *)_a;
-	const u32 b = *(const u32 *)_b;
-
-	if (a < b)
-		return -1;
-	else if (a > b)
-		return 1;
-	return 0;
-}
-
-static void map_field_offs_swap(void *_a, void *_b, int size, const void *priv)
-{
-	struct bpf_map *map = (struct bpf_map *)priv;
-	u32 *off_base = map->field_offs->field_off;
-	u32 *a = _a, *b = _b;
-	u8 *sz_a, *sz_b;
-
-	sz_a = map->field_offs->field_sz + (a - off_base);
-	sz_b = map->field_offs->field_sz + (b - off_base);
-
-	swap(*a, *b);
-	swap(*sz_a, *sz_b);
-}
-
-static int bpf_map_alloc_off_arr(struct bpf_map *map)
-{
-	bool has_fields = !IS_ERR_OR_NULL(map);
-	struct btf_field_offs *fo;
-	struct btf_record *rec;
-	u32 i, *off;
-	u8 *sz;
-
-	if (!has_fields) {
-		map->field_offs = NULL;
-		return 0;
-	}
-
-	fo = kmalloc(sizeof(*map->field_offs), GFP_KERNEL | __GFP_NOWARN);
-	if (!fo)
-		return -ENOMEM;
-	map->field_offs = fo;
-
-	rec = map->record;
-	off = &fo->field_off[fo->cnt];
-	sz = &fo->field_sz[fo->cnt];
-	for (i = 0; i < rec->cnt; i++) {
-		*off++ = rec->fields[i].offset;
-		*sz++ = btf_field_type_size(rec->fields[i].type);
-	}
-	fo->cnt = rec->cnt;
-
-	if (fo->cnt == 1)
-		return 0;
-	sort_r(fo->field_off, fo->cnt, sizeof(fo->field_off[0]),
-	       map_field_offs_cmp, map_field_offs_swap, map);
-	return 0;
-}
-
 static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			 u32 btf_key_id, u32 btf_value_id)
 {
@@ -1097,6 +1037,7 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 static int map_create(union bpf_attr *attr)
 {
 	int numa_node = bpf_map_attr_numa_node(attr);
+	struct btf_field_offs *foffs;
 	struct bpf_map *map;
 	int f_flags;
 	int err;
@@ -1176,13 +1117,17 @@ static int map_create(union bpf_attr *attr)
 			attr->btf_vmlinux_value_type_id;
 	}
 
-	err = bpf_map_alloc_off_arr(map);
-	if (err)
+
+	foffs = btf_parse_field_offs(map->record);
+	if (IS_ERR(foffs)) {
+		err = PTR_ERR(foffs);
 		goto free_map;
+	}
+	map->field_offs = foffs;
 
 	err = security_bpf_map_alloc(map);
 	if (err)
-		goto free_map_off_arr;
+		goto free_map_field_offs;
 
 	err = bpf_map_alloc_id(map);
 	if (err)
@@ -1206,7 +1151,7 @@ static int map_create(union bpf_attr *attr)
 
 free_map_sec:
 	security_bpf_map_free(map);
-free_map_off_arr:
+free_map_field_offs:
 	kfree(map->field_offs);
 free_map:
 	btf_put(map->btf);
-- 
2.38.1

[PATCH bpf-next v3 09/24] bpf: Support bpf_list_head in map values

[Kumar Kartikeya Dwivedi]

Add the basic support on the map side to parse, recognize, verify, and
build metadata table for a new special field of the type struct
bpf_list_head. To parameterize the bpf_list_head for a certain value
type and the list_node member it will accept in that value type, we use
BTF declaration tags.

The definition of bpf_list_head in a map value will be done as follows:

struct foo {
	struct bpf_list_node node;
	int data;
};

struct map_value {
	struct bpf_list_head head __contains(foo, node);
};

Then, the bpf_list_head only allows adding to the list 'head' using the
bpf_list_node 'node' for the type struct foo.

The 'contains' annotation is a BTF declaration tag composed of four
parts, "contains:name:node" where the name is then used to look up the
type in the map BTF, with its kind hardcoded to BTF_KIND_STRUCT during
the lookup. The node defines name of the member in this type that has
the type struct bpf_list_node, which is actually used for linking into
the linked list. For now, 'kind' part is hardcoded as struct.

This allows building intrusive linked lists in BPF, using container_of
to obtain pointer to entry, while being completely type safe from the
perspective of the verifier. The verifier knows exactly the type of the
nodes, and knows that list helpers return that type at some fixed offset
where the bpf_list_node member used for this list exists. The verifier
also uses this information to disallow adding types that are not
accepted by a certain list.

For now, no elements can be added to such lists. Support for that is
coming in future patches, hence draining and freeing items is done with
a TODO that will be resolved in a future patch.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h            |  17 ++++
 include/uapi/linux/bpf.h       |  10 +++
 kernel/bpf/btf.c               | 144 ++++++++++++++++++++++++++++++++-
 kernel/bpf/helpers.c           |  32 ++++++++
 kernel/bpf/syscall.c           |  22 ++++-
 kernel/bpf/verifier.c          |   7 ++
 tools/include/uapi/linux/bpf.h |  10 +++
 7 files changed, 238 insertions(+), 4 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 02967fbdf712..11ae44565ade 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -175,6 +175,7 @@ enum btf_field_type {
 	BPF_KPTR_UNREF = (1 << 2),
 	BPF_KPTR_REF   = (1 << 3),
 	BPF_KPTR       = BPF_KPTR_UNREF | BPF_KPTR_REF,
+	BPF_LIST_HEAD  = (1 << 4),
 };
 
 struct btf_field_kptr {
@@ -184,11 +185,18 @@ struct btf_field_kptr {
 	u32 btf_id;
 };
 
+struct btf_field_list_head {
+	struct btf *btf;
+	u32 value_btf_id;
+	u32 node_offset;
+};
+
 struct btf_field {
 	u32 offset;
 	enum btf_field_type type;
 	union {
 		struct btf_field_kptr kptr;
+		struct btf_field_list_head list_head;
 	};
 };
 
@@ -266,6 +274,8 @@ static inline const char *btf_field_type_name(enum btf_field_type type)
 	case BPF_KPTR_UNREF:
 	case BPF_KPTR_REF:
 		return "kptr";
+	case BPF_LIST_HEAD:
+		return "bpf_list_head";
 	default:
 		WARN_ON_ONCE(1);
 		return "unknown";
@@ -282,6 +292,8 @@ static inline u32 btf_field_type_size(enum btf_field_type type)
 	case BPF_KPTR_UNREF:
 	case BPF_KPTR_REF:
 		return sizeof(u64);
+	case BPF_LIST_HEAD:
+		return sizeof(struct bpf_list_head);
 	default:
 		WARN_ON_ONCE(1);
 		return 0;
@@ -298,6 +310,8 @@ static inline u32 btf_field_type_align(enum btf_field_type type)
 	case BPF_KPTR_UNREF:
 	case BPF_KPTR_REF:
 		return __alignof__(u64);
+	case BPF_LIST_HEAD:
+		return __alignof__(struct bpf_list_head);
 	default:
 		WARN_ON_ONCE(1);
 		return 0;
@@ -401,6 +415,9 @@ static inline void zero_map_value(struct bpf_map *map, void *dst)
 void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
 			   bool lock_src);
 void bpf_timer_cancel_and_free(void *timer);
+void bpf_list_head_free(const struct btf_field *field, void *list_head,
+			struct bpf_spin_lock *spin_lock);
+
 int bpf_obj_name_cpy(char *dst, const char *src, unsigned int size);
 
 struct bpf_offload_dev;
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 94659f6b3395..dd381086bad9 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -6887,6 +6887,16 @@ struct bpf_dynptr {
 	__u64 :64;
 } __attribute__((aligned(8)));
 
+struct bpf_list_head {
+	__u64 :64;
+	__u64 :64;
+} __attribute__((aligned(8)));
+
+struct bpf_list_node {
+	__u64 :64;
+	__u64 :64;
+} __attribute__((aligned(8)));
+
 struct bpf_sysctl {
 	__u32	write;		/* Sysctl is being read (= 0) or written (= 1).
 				 * Allows 1,2,4-byte read, but no write.
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index de8a93e70f5e..eb47b2ddb47e 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3205,9 +3205,15 @@ enum {
 struct btf_field_info {
 	enum btf_field_type type;
 	u32 off;
-	struct {
-		u32 type_id;
-	} kptr;
+	union {
+		struct {
+			u32 type_id;
+		} kptr;
+		struct {
+			const char *node_name;
+			u32 value_btf_id;
+		} list_head;
+	};
 };
 
 static int btf_find_struct(const struct btf *btf, const struct btf_type *t,
@@ -3261,6 +3267,66 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t,
 	return BTF_FIELD_FOUND;
 }
 
+static const char *btf_find_decl_tag_value(const struct btf *btf,
+					   const struct btf_type *pt,
+					   int comp_idx, const char *tag_key)
+{
+	int i;
+
+	for (i = 1; i < btf_nr_types(btf); i++) {
+		const struct btf_type *t = btf_type_by_id(btf, i);
+		int len = strlen(tag_key);
+
+		if (!btf_type_is_decl_tag(t))
+			continue;
+		/* TODO: Instead of btf_type pt, it would be much better if we had BTF
+		 * ID of the map value type. This would avoid btf_type_by_id call here.
+		 */
+		if (pt != btf_type_by_id(btf, t->type) ||
+		    btf_type_decl_tag(t)->component_idx != comp_idx)
+			continue;
+		if (strncmp(__btf_name_by_offset(btf, t->name_off), tag_key, len))
+			continue;
+		return __btf_name_by_offset(btf, t->name_off) + len;
+	}
+	return NULL;
+}
+
+static int btf_find_list_head(const struct btf *btf, const struct btf_type *pt,
+			      const struct btf_type *t, int comp_idx,
+			      u32 off, int sz, struct btf_field_info *info)
+{
+	const char *value_type;
+	const char *list_node;
+	s32 id;
+
+	if (!__btf_type_is_struct(t))
+		return BTF_FIELD_IGNORE;
+	if (t->size != sz)
+		return BTF_FIELD_IGNORE;
+	value_type = btf_find_decl_tag_value(btf, pt, comp_idx, "contains:");
+	if (!value_type)
+		return -EINVAL;
+	list_node = strstr(value_type, ":");
+	if (!list_node)
+		return -EINVAL;
+	value_type = kstrndup(value_type, list_node - value_type, GFP_KERNEL | __GFP_NOWARN);
+	if (!value_type)
+		return -ENOMEM;
+	id = btf_find_by_name_kind(btf, value_type, BTF_KIND_STRUCT);
+	kfree(value_type);
+	if (id < 0)
+		return id;
+	list_node++;
+	if (str_is_empty(list_node))
+		return -EINVAL;
+	info->type = BPF_LIST_HEAD;
+	info->off = off;
+	info->list_head.value_btf_id = id;
+	info->list_head.node_name = list_node;
+	return BTF_FIELD_FOUND;
+}
+
 static int btf_get_field_type(const char *name, u32 field_mask, u32 *seen_mask,
 			      int *align, int *sz)
 {
@@ -3284,6 +3350,12 @@ static int btf_get_field_type(const char *name, u32 field_mask, u32 *seen_mask,
 			goto end;
 		}
 	}
+	if (field_mask & BPF_LIST_HEAD) {
+		if (!strcmp(name, "bpf_list_head")) {
+			type = BPF_LIST_HEAD;
+			goto end;
+		}
+	}
 	/* Only return BPF_KPTR when all other types with matchable names fail */
 	if (field_mask & BPF_KPTR) {
 		type = BPF_KPTR_REF;
@@ -3317,6 +3389,8 @@ static int btf_find_struct_field(const struct btf *btf,
 			return field_type;
 
 		off = __btf_member_bit_offset(t, member);
+		if (i && !off)
+			return -EFAULT;
 		if (off % 8)
 			/* valid C code cannot generate such BTF */
 			return -EINVAL;
@@ -3339,6 +3413,12 @@ static int btf_find_struct_field(const struct btf *btf,
 			if (ret < 0)
 				return ret;
 			break;
+		case BPF_LIST_HEAD:
+			ret = btf_find_list_head(btf, t, member_type, i, off, sz,
+						 idx < info_cnt ? &info[idx] : &tmp);
+			if (ret < 0)
+				return ret;
+			break;
 		default:
 			return -EFAULT;
 		}
@@ -3373,6 +3453,8 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 			return field_type;
 
 		off = vsi->offset;
+		if (i && !off)
+			return -EFAULT;
 		if (vsi->size != sz)
 			continue;
 		if (off % align)
@@ -3393,6 +3475,12 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 			if (ret < 0)
 				return ret;
 			break;
+		case BPF_LIST_HEAD:
+			ret = btf_find_list_head(btf, var, var_type, -1, off, sz,
+						 idx < info_cnt ? &info[idx] : &tmp);
+			if (ret < 0)
+				return ret;
+			break;
 		default:
 			return -EFAULT;
 		}
@@ -3491,6 +3579,44 @@ static int btf_parse_kptr(const struct btf *btf, struct btf_field *field,
 	return ret;
 }
 
+static int btf_parse_list_head(const struct btf *btf, struct btf_field *field,
+			       struct btf_field_info *info)
+{
+	const struct btf_type *t, *n = NULL;
+	const struct btf_member *member;
+	u32 offset;
+	int i;
+
+	t = btf_type_by_id(btf, info->list_head.value_btf_id);
+	/* We've already checked that value_btf_id is a struct type. We
+	 * just need to figure out the offset of the list_node, and
+	 * verify its type.
+	 */
+	for_each_member(i, t, member) {
+		if (strcmp(info->list_head.node_name, __btf_name_by_offset(btf, member->name_off)))
+			continue;
+		/* Invalid BTF, two members with same name */
+		if (n)
+			return -EINVAL;
+		n = btf_type_by_id(btf, member->type);
+		if (!__btf_type_is_struct(n))
+			return -EINVAL;
+		if (strcmp("bpf_list_node", __btf_name_by_offset(btf, n->name_off)))
+			return -EINVAL;
+		offset = __btf_member_bit_offset(n, member);
+		if (offset % 8)
+			return -EINVAL;
+		offset /= 8;
+		if (offset % __alignof__(struct bpf_list_node))
+			return -EINVAL;
+
+		field->list_head.btf = (struct btf *)btf;
+		field->list_head.value_btf_id = info->list_head.value_btf_id;
+		field->list_head.node_offset = offset;
+	}
+	return 0;
+}
+
 struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t,
 				    u32 field_mask, u32 value_size)
 {
@@ -3539,12 +3665,24 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
 			if (ret < 0)
 				goto end;
 			break;
+		case BPF_LIST_HEAD:
+			ret = btf_parse_list_head(btf, &rec->fields[i], &info_arr[i]);
+			if (ret < 0)
+				goto end;
+			break;
 		default:
 			ret = -EFAULT;
 			goto end;
 		}
 		rec->cnt++;
 	}
+
+	/* bpf_list_head requires bpf_spin_lock */
+	if (btf_record_has_field(rec, BPF_LIST_HEAD) && rec->spin_lock_off < 0) {
+		ret = -EINVAL;
+		goto end;
+	}
+
 	return rec;
 end:
 	btf_record_free(rec);
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 283f55bbeb70..b1ee50953efc 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1706,6 +1706,38 @@ bpf_base_func_proto(enum bpf_func_id func_id)
 	}
 }
 
+void bpf_list_head_free(const struct btf_field *field, void *list_head,
+			struct bpf_spin_lock *spin_lock)
+{
+	struct list_head *head = list_head, *orig_head = head;
+	unsigned long flags;
+
+	BUILD_BUG_ON(sizeof(struct bpf_list_head) != sizeof(struct list_head));
+	BUILD_BUG_ON(__alignof__(struct bpf_list_head) != __alignof__(struct list_head));
+
+	/* __bpf_spin_lock_irqsave cannot be used here, as we may take a spin
+	 * lock again when we call bpf_obj_free_fields in the loop, and it will
+	 * overwrite the per-CPU local_irq_save state.
+	 */
+	local_irq_save(flags);
+	__bpf_spin_lock(spin_lock);
+	if (!head->next || list_empty(head))
+		goto unlock;
+	head = head->next;
+	while (head != orig_head) {
+		void *obj = head;
+
+		obj -= field->list_head.node_offset;
+		head = head->next;
+		/* TODO: Rework later */
+		kfree(obj);
+	}
+unlock:
+	INIT_LIST_HEAD(head);
+	__bpf_spin_unlock(spin_lock);
+	local_irq_restore(flags);
+}
+
 BTF_SET8_START(tracing_btf_ids)
 #ifdef CONFIG_KEXEC_CORE
 BTF_ID_FLAGS(func, crash_kexec, KF_DESTRUCTIVE)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 85532d301124..fdbae52f463f 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -536,6 +536,9 @@ void btf_record_free(struct btf_record *rec)
 				module_put(rec->fields[i].kptr.module);
 			btf_put(rec->fields[i].kptr.btf);
 			break;
+		case BPF_LIST_HEAD:
+			/* Nothing to release for bpf_list_head */
+			break;
 		default:
 			WARN_ON_ONCE(1);
 			continue;
@@ -578,6 +581,9 @@ struct btf_record *btf_record_dup(const struct btf_record *rec)
 				goto free;
 			}
 			break;
+		case BPF_LIST_HEAD:
+			/* Nothing to acquire for bpf_list_head */
+			break;
 		default:
 			ret = -EFAULT;
 			WARN_ON_ONCE(1);
@@ -637,6 +643,11 @@ void bpf_obj_free_fields(const struct btf_record *rec, void *obj)
 		case BPF_KPTR_REF:
 			field->kptr.dtor((void *)xchg((unsigned long *)field_ptr, 0));
 			break;
+		case BPF_LIST_HEAD:
+			if (WARN_ON_ONCE(rec->spin_lock_off < 0))
+				continue;
+			bpf_list_head_free(field, field_ptr, obj + rec->spin_lock_off);
+			break;
 		default:
 			WARN_ON_ONCE(1);
 			continue;
@@ -965,7 +976,8 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 	if (!value_type || value_size != map->value_size)
 		return -EINVAL;
 
-	map->record = btf_parse_fields(btf, value_type, BPF_SPIN_LOCK | BPF_TIMER | BPF_KPTR,
+	map->record = btf_parse_fields(btf, value_type,
+				       BPF_SPIN_LOCK | BPF_TIMER | BPF_KPTR | BPF_LIST_HEAD,
 				       map->value_size);
 	if (!IS_ERR_OR_NULL(map->record)) {
 		int i;
@@ -1012,6 +1024,14 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 					goto free_map_tab;
 				}
 				break;
+			case BPF_LIST_HEAD:
+				if (map->map_type != BPF_MAP_TYPE_HASH &&
+				    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
+				    map->map_type != BPF_MAP_TYPE_ARRAY) {
+					ret = -EOPNOTSUPP;
+					goto free_map_tab;
+				}
+				break;
 			default:
 				/* Fail if map_type checks are missing for a field type */
 				ret = -EOPNOTSUPP;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 2962b842b4c7..e9c8448cac9e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -12642,6 +12642,13 @@ static int check_map_prog_compatibility(struct bpf_verifier_env *env,
 		}
 	}
 
+	if (btf_record_has_field(map->record, BPF_LIST_HEAD)) {
+		if (is_tracing_prog_type(prog_type)) {
+			verbose(env, "tracing progs cannot use bpf_list_head yet\n");
+			return -EINVAL;
+		}
+	}
+
 	if ((bpf_prog_is_dev_bound(prog->aux) || bpf_map_is_dev_bound(map)) &&
 	    !bpf_offload_prog_map_match(prog, map)) {
 		verbose(env, "offload device mismatch between prog and map\n");
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 94659f6b3395..dd381086bad9 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -6887,6 +6887,16 @@ struct bpf_dynptr {
 	__u64 :64;
 } __attribute__((aligned(8)));
 
+struct bpf_list_head {
+	__u64 :64;
+	__u64 :64;
+} __attribute__((aligned(8)));
+
+struct bpf_list_node {
+	__u64 :64;
+	__u64 :64;
+} __attribute__((aligned(8)));
+
 struct bpf_sysctl {
 	__u32	write;		/* Sysctl is being read (= 0) or written (= 1).
 				 * Allows 1,2,4-byte read, but no write.
-- 
2.38.1

[PATCH bpf-next v3 10/24] bpf: Introduce local kptrs

[Kumar Kartikeya Dwivedi]

Introduce local kptrs, i.e. PTR_TO_BTF_ID that point to a type in
program BTF. This is indicated by the presence of MEM_TYPE_LOCAL type
tag in reg->type to avoid having to check btf_is_kernel when trying to
match argument types in helpers.

Refactor btf_struct_access callback to just take bpf_reg_state instead
of btf and btf_type paramters. Note that the call site in
check_map_access now simulates access to a PTR_TO_BTF_ID by creating a
dummy reg on stack. Since only the type, btf, and btf_id of the register
matter for the checks, it can be done so without complicating the usual
cases elsewhere in the verifier where reg->btf and reg->btf_id is used
verbatim.

For now, these local kptrs will always be referenced in verifier
context, hence ref_obj_id == 0 for them is a bug. It is allowed to write
to such objects, as long fields that are special are not touched
(support for which will be added in subsequent patches). Note that once
such a local kptr is marked PTR_UNTRUSTED, it is no longer allowed to
write to it.

No PROBE_MEM handling is hence done unless PTR_UNTRUSTED is part of the
register type, since they can never be in an undefined state otherwise,
and their lifetime will always be valid.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h              | 28 ++++++++++++++++--------
 include/linux/filter.h           |  8 +++----
 kernel/bpf/btf.c                 | 16 ++++++++++----
 kernel/bpf/verifier.c            | 37 ++++++++++++++++++++++++++------
 net/bpf/bpf_dummy_struct_ops.c   | 14 ++++++------
 net/core/filter.c                | 34 ++++++++++++-----------------
 net/ipv4/bpf_tcp_ca.c            | 13 ++++++-----
 net/netfilter/nf_conntrack_bpf.c | 17 ++++++---------
 8 files changed, 99 insertions(+), 68 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 11ae44565ade..5d627161fbab 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -524,6 +524,11 @@ enum bpf_type_flag {
 	/* Size is known at compile time. */
 	MEM_FIXED_SIZE		= BIT(10 + BPF_BASE_TYPE_BITS),
 
+	/* MEM is of a type from program BTF, not kernel BTF. This is used to
+	 * tag PTR_TO_BTF_ID allocated using bpf_kptr_alloc.
+	 */
+	MEM_TYPE_LOCAL		= BIT(11 + BPF_BASE_TYPE_BITS),
+
 	__BPF_TYPE_FLAG_MAX,
 	__BPF_TYPE_LAST_FLAG	= __BPF_TYPE_FLAG_MAX - 1,
 };
@@ -772,6 +777,7 @@ struct bpf_prog_ops {
 			union bpf_attr __user *uattr);
 };
 
+struct bpf_reg_state;
 struct bpf_verifier_ops {
 	/* return eBPF function prototype for verification */
 	const struct bpf_func_proto *
@@ -793,9 +799,8 @@ struct bpf_verifier_ops {
 				  struct bpf_insn *dst,
 				  struct bpf_prog *prog, u32 *target_size);
 	int (*btf_struct_access)(struct bpf_verifier_log *log,
-				 const struct btf *btf,
-				 const struct btf_type *t, int off, int size,
-				 enum bpf_access_type atype,
+				 const struct bpf_reg_state *reg,
+				 int off, int size, enum bpf_access_type atype,
 				 u32 *next_btf_id, enum bpf_type_flag *flag);
 };
 
@@ -2070,9 +2075,9 @@ static inline bool bpf_tracing_btf_ctx_access(int off, int size,
 	return btf_ctx_access(off, size, type, prog, info);
 }
 
-int btf_struct_access(struct bpf_verifier_log *log, const struct btf *btf,
-		      const struct btf_type *t, int off, int size,
-		      enum bpf_access_type atype,
+int btf_struct_access(struct bpf_verifier_log *log,
+		      const struct bpf_reg_state *reg,
+		      int off, int size, enum bpf_access_type atype,
 		      u32 *next_btf_id, enum bpf_type_flag *flag);
 bool btf_struct_ids_match(struct bpf_verifier_log *log,
 			  const struct btf *btf, u32 id, int off,
@@ -2323,9 +2328,8 @@ static inline struct bpf_prog *bpf_prog_by_id(u32 id)
 }
 
 static inline int btf_struct_access(struct bpf_verifier_log *log,
-				    const struct btf *btf,
-				    const struct btf_type *t, int off, int size,
-				    enum bpf_access_type atype,
+				    const struct bpf_reg_state *reg,
+				    int off, int size, enum bpf_access_type atype,
 				    u32 *next_btf_id, enum bpf_type_flag *flag)
 {
 	return -EACCES;
@@ -2782,4 +2786,10 @@ struct bpf_key {
 	bool has_ref;
 };
 #endif /* CONFIG_KEYS */
+
+static inline bool type_is_local_kptr(u32 type)
+{
+	return type & MEM_TYPE_LOCAL;
+}
+
 #endif /* _LINUX_BPF_H */
diff --git a/include/linux/filter.h b/include/linux/filter.h
index efc42a6e3aed..787d35dbf5b0 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -568,10 +568,10 @@ struct sk_filter {
 DECLARE_STATIC_KEY_FALSE(bpf_stats_enabled_key);
 
 extern struct mutex nf_conn_btf_access_lock;
-extern int (*nfct_btf_struct_access)(struct bpf_verifier_log *log, const struct btf *btf,
-				     const struct btf_type *t, int off, int size,
-				     enum bpf_access_type atype, u32 *next_btf_id,
-				     enum bpf_type_flag *flag);
+extern int (*nfct_btf_struct_access)(struct bpf_verifier_log *log,
+				     const struct bpf_reg_state *reg,
+				     int off, int size, enum bpf_access_type atype,
+				     u32 *next_btf_id, enum bpf_type_flag *flag);
 
 typedef unsigned int (*bpf_dispatcher_fn)(const void *ctx,
 					  const struct bpf_insn *insnsi,
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index eb47b2ddb47e..242ba75f990a 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6011,20 +6011,28 @@ static int btf_struct_walk(struct bpf_verifier_log *log, const struct btf *btf,
 	return -EINVAL;
 }
 
-int btf_struct_access(struct bpf_verifier_log *log, const struct btf *btf,
-		      const struct btf_type *t, int off, int size,
-		      enum bpf_access_type atype __maybe_unused,
+int btf_struct_access(struct bpf_verifier_log *log,
+		      const struct bpf_reg_state *reg,
+		      int off, int size, enum bpf_access_type atype __maybe_unused,
 		      u32 *next_btf_id, enum bpf_type_flag *flag)
 {
+	const struct btf *btf = reg->btf;
 	enum bpf_type_flag tmp_flag = 0;
+	const struct btf_type *t;
+	u32 id = reg->btf_id;
 	int err;
-	u32 id;
 
+	t = btf_type_by_id(btf, id);
 	do {
 		err = btf_struct_walk(log, btf, t, off, size, &id, &tmp_flag);
 
 		switch (err) {
 		case WALK_PTR:
+			/* For local types, the destination register cannot
+			 * become a pointer again.
+			 */
+			if (type_is_local_kptr(reg->type))
+				return SCALAR_VALUE;
 			/* If we found the pointer or scalar on t+off,
 			 * we're done.
 			 */
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index e9c8448cac9e..e56b960546f0 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -4521,17 +4521,28 @@ static int check_ptr_to_btf_access(struct bpf_verifier_env *env,
 		return -EACCES;
 	}
 
-	if (env->ops->btf_struct_access) {
-		ret = env->ops->btf_struct_access(&env->log, reg->btf, t,
-						  off, size, atype, &btf_id, &flag);
+	if (env->ops->btf_struct_access && !type_is_local_kptr(reg->type)) {
+		if (!btf_is_kernel(reg->btf)) {
+			verbose(env, "verifier internal error: reg->btf must be kernel btf\n");
+			return -EFAULT;
+		}
+		ret = env->ops->btf_struct_access(&env->log, reg, off, size, atype, &btf_id, &flag);
 	} else {
-		if (atype != BPF_READ) {
+		/* Writes are permitted with default btf_struct_access for local
+		 * kptrs (which always have ref_obj_id > 0), but not for
+		 * _untrusted_ local kptrs.
+		 */
+		if (atype != BPF_READ && reg->type != (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
 			verbose(env, "only read is supported\n");
 			return -EACCES;
 		}
 
-		ret = btf_struct_access(&env->log, reg->btf, t, off, size,
-					atype, &btf_id, &flag);
+		if (type_is_local_kptr(reg->type) && !reg->ref_obj_id) {
+			verbose(env, "verifier internal error: ref_obj_id for local kptr must be non-zero\n");
+			return -EFAULT;
+		}
+
+		ret = btf_struct_access(&env->log, reg, off, size, atype, &btf_id, &flag);
 	}
 
 	if (ret < 0)
@@ -4557,6 +4568,7 @@ static int check_ptr_to_map_access(struct bpf_verifier_env *env,
 {
 	struct bpf_reg_state *reg = regs + regno;
 	struct bpf_map *map = reg->map_ptr;
+	struct bpf_reg_state map_reg;
 	enum bpf_type_flag flag = 0;
 	const struct btf_type *t;
 	const char *tname;
@@ -4595,7 +4607,10 @@ static int check_ptr_to_map_access(struct bpf_verifier_env *env,
 		return -EACCES;
 	}
 
-	ret = btf_struct_access(&env->log, btf_vmlinux, t, off, size, atype, &btf_id, &flag);
+	/* Simulate access to a PTR_TO_BTF_ID */
+	memset(&map_reg, 0, sizeof(map_reg));
+	mark_btf_ld_reg(env, &map_reg, 0, PTR_TO_BTF_ID, btf_vmlinux, *map->ops->map_btf_id, 0);
+	ret = btf_struct_access(&env->log, &map_reg, off, size, atype, &btf_id, &flag);
 	if (ret < 0)
 		return ret;
 
@@ -5805,6 +5820,7 @@ int check_func_arg_reg_off(struct bpf_verifier_env *env,
 	 * fixed offset.
 	 */
 	case PTR_TO_BTF_ID:
+	case PTR_TO_BTF_ID | MEM_TYPE_LOCAL:
 		/* When referenced PTR_TO_BTF_ID is passed to release function,
 		 * it's fixed offset must be 0.	In the other cases, fixed offset
 		 * can be non-zero.
@@ -13461,6 +13477,13 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env)
 			break;
 		case PTR_TO_BTF_ID:
 		case PTR_TO_BTF_ID | PTR_UNTRUSTED:
+		/* PTR_TO_BTF_ID | MEM_TYPE_LOCAL always has a valid lifetime,
+		 * unlike PTR_TO_BTF_ID, and an active ref_obj_id, but the same
+		 * cannot be said once it is marked PTR_UNTRUSTED, hence we must
+		 * handle any faults for loads into such types. BPF_WRITE is
+		 * disallowed for this case.
+		 */
+		case PTR_TO_BTF_ID | MEM_TYPE_LOCAL | PTR_UNTRUSTED:
 			if (type == BPF_READ) {
 				insn->code = BPF_LDX | BPF_PROBE_MEM |
 					BPF_SIZE((insn)->code);
diff --git a/net/bpf/bpf_dummy_struct_ops.c b/net/bpf/bpf_dummy_struct_ops.c
index e78dadfc5829..2d434c1f4617 100644
--- a/net/bpf/bpf_dummy_struct_ops.c
+++ b/net/bpf/bpf_dummy_struct_ops.c
@@ -156,29 +156,29 @@ static bool bpf_dummy_ops_is_valid_access(int off, int size,
 }
 
 static int bpf_dummy_ops_btf_struct_access(struct bpf_verifier_log *log,
-					   const struct btf *btf,
-					   const struct btf_type *t, int off,
-					   int size, enum bpf_access_type atype,
+					   const struct bpf_reg_state *reg,
+					   int off, int size, enum bpf_access_type atype,
 					   u32 *next_btf_id,
 					   enum bpf_type_flag *flag)
 {
 	const struct btf_type *state;
+	const struct btf_type *t;
 	s32 type_id;
 	int err;
 
-	type_id = btf_find_by_name_kind(btf, "bpf_dummy_ops_state",
+	type_id = btf_find_by_name_kind(reg->btf, "bpf_dummy_ops_state",
 					BTF_KIND_STRUCT);
 	if (type_id < 0)
 		return -EINVAL;
 
-	state = btf_type_by_id(btf, type_id);
+	t = btf_type_by_id(reg->btf, reg->btf_id);
+	state = btf_type_by_id(reg->btf, type_id);
 	if (t != state) {
 		bpf_log(log, "only access to bpf_dummy_ops_state is supported\n");
 		return -EACCES;
 	}
 
-	err = btf_struct_access(log, btf, t, off, size, atype, next_btf_id,
-				flag);
+	err = btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 	if (err < 0)
 		return err;
 
diff --git a/net/core/filter.c b/net/core/filter.c
index bb0136e7a8e4..1380828d67a3 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -8647,28 +8647,25 @@ static bool tc_cls_act_is_valid_access(int off, int size,
 DEFINE_MUTEX(nf_conn_btf_access_lock);
 EXPORT_SYMBOL_GPL(nf_conn_btf_access_lock);
 
-int (*nfct_btf_struct_access)(struct bpf_verifier_log *log, const struct btf *btf,
-			      const struct btf_type *t, int off, int size,
-			      enum bpf_access_type atype, u32 *next_btf_id,
-			      enum bpf_type_flag *flag);
+int (*nfct_btf_struct_access)(struct bpf_verifier_log *log,
+			      const struct bpf_reg_state *reg,
+			      int off, int size, enum bpf_access_type atype,
+			      u32 *next_btf_id, enum bpf_type_flag *flag);
 EXPORT_SYMBOL_GPL(nfct_btf_struct_access);
 
 static int tc_cls_act_btf_struct_access(struct bpf_verifier_log *log,
-					const struct btf *btf,
-					const struct btf_type *t, int off,
-					int size, enum bpf_access_type atype,
-					u32 *next_btf_id,
-					enum bpf_type_flag *flag)
+					const struct bpf_reg_state *reg,
+					int off, int size, enum bpf_access_type atype,
+					u32 *next_btf_id, enum bpf_type_flag *flag)
 {
 	int ret = -EACCES;
 
 	if (atype == BPF_READ)
-		return btf_struct_access(log, btf, t, off, size, atype, next_btf_id,
-					 flag);
+		return btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 
 	mutex_lock(&nf_conn_btf_access_lock);
 	if (nfct_btf_struct_access)
-		ret = nfct_btf_struct_access(log, btf, t, off, size, atype, next_btf_id, flag);
+		ret = nfct_btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 	mutex_unlock(&nf_conn_btf_access_lock);
 
 	return ret;
@@ -8734,21 +8731,18 @@ void bpf_warn_invalid_xdp_action(struct net_device *dev, struct bpf_prog *prog,
 EXPORT_SYMBOL_GPL(bpf_warn_invalid_xdp_action);
 
 static int xdp_btf_struct_access(struct bpf_verifier_log *log,
-				 const struct btf *btf,
-				 const struct btf_type *t, int off,
-				 int size, enum bpf_access_type atype,
-				 u32 *next_btf_id,
-				 enum bpf_type_flag *flag)
+				 const struct bpf_reg_state *reg,
+				 int off, int size, enum bpf_access_type atype,
+				 u32 *next_btf_id, enum bpf_type_flag *flag)
 {
 	int ret = -EACCES;
 
 	if (atype == BPF_READ)
-		return btf_struct_access(log, btf, t, off, size, atype, next_btf_id,
-					 flag);
+		return btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 
 	mutex_lock(&nf_conn_btf_access_lock);
 	if (nfct_btf_struct_access)
-		ret = nfct_btf_struct_access(log, btf, t, off, size, atype, next_btf_id, flag);
+		ret = nfct_btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 	mutex_unlock(&nf_conn_btf_access_lock);
 
 	return ret;
diff --git a/net/ipv4/bpf_tcp_ca.c b/net/ipv4/bpf_tcp_ca.c
index 6da16ae6a962..d15c91de995f 100644
--- a/net/ipv4/bpf_tcp_ca.c
+++ b/net/ipv4/bpf_tcp_ca.c
@@ -69,18 +69,17 @@ static bool bpf_tcp_ca_is_valid_access(int off, int size,
 }
 
 static int bpf_tcp_ca_btf_struct_access(struct bpf_verifier_log *log,
-					const struct btf *btf,
-					const struct btf_type *t, int off,
-					int size, enum bpf_access_type atype,
-					u32 *next_btf_id,
-					enum bpf_type_flag *flag)
+					const struct bpf_reg_state *reg,
+					int off, int size, enum bpf_access_type atype,
+					u32 *next_btf_id, enum bpf_type_flag *flag)
 {
+	const struct btf_type *t;
 	size_t end;
 
 	if (atype == BPF_READ)
-		return btf_struct_access(log, btf, t, off, size, atype, next_btf_id,
-					 flag);
+		return btf_struct_access(log, reg, off, size, atype, next_btf_id, flag);
 
+	t = btf_type_by_id(reg->btf, reg->btf_id);
 	if (t != tcp_sock_type) {
 		bpf_log(log, "only read is supported\n");
 		return -EACCES;
diff --git a/net/netfilter/nf_conntrack_bpf.c b/net/netfilter/nf_conntrack_bpf.c
index 8639e7efd0e2..24002bc61e07 100644
--- a/net/netfilter/nf_conntrack_bpf.c
+++ b/net/netfilter/nf_conntrack_bpf.c
@@ -191,19 +191,16 @@ BTF_ID(struct, nf_conn___init)
 
 /* Check writes into `struct nf_conn` */
 static int _nf_conntrack_btf_struct_access(struct bpf_verifier_log *log,
-					   const struct btf *btf,
-					   const struct btf_type *t, int off,
-					   int size, enum bpf_access_type atype,
-					   u32 *next_btf_id,
-					   enum bpf_type_flag *flag)
+					   const struct bpf_reg_state *reg,
+					   int off, int size, enum bpf_access_type atype,
+					   u32 *next_btf_id, enum bpf_type_flag *flag)
 {
-	const struct btf_type *ncit;
-	const struct btf_type *nct;
+	const struct btf_type *ncit, *nct, *t;
 	size_t end;
 
-	ncit = btf_type_by_id(btf, btf_nf_conn_ids[1]);
-	nct = btf_type_by_id(btf, btf_nf_conn_ids[0]);
-
+	ncit = btf_type_by_id(reg->btf, btf_nf_conn_ids[1]);
+	nct = btf_type_by_id(reg->btf, btf_nf_conn_ids[0]);
+	t = btf_type_by_id(reg->btf, reg->btf_id);
 	if (t != nct && t != ncit) {
 		bpf_log(log, "only read is supported\n");
 		return -EACCES;
-- 
2.38.1

[PATCH bpf-next v3 11/24] bpf: Recognize bpf_{spin_lock,list_head,list_node} in local kptrs

[Kumar Kartikeya Dwivedi]

Allow specifying bpf_spin_lock, bpf_list_head, bpf_list_node fields in a
local kptr.

A bpf_list_head allows implementing map-in-map style use cases, where
local kptr with bpf_list_head is linked into a list in a map value. This
would require embedding a bpf_list_node, support for which is also
included.

Lastly, while we strictly don't require to hold a bpf_spin_lock while
manipulating the bpf_list_head of a local kptr, as when have access to
it, we have complete ownership of the object, the locking constraint is
still kept and may be conditionally lifted in the future.

Note that the specification of such types can be done just like map
values, e.g.:

struct bar {
	struct bpf_list_node node;
};

struct foo {
	struct bpf_spin_lock lock;
	struct bpf_list_head head __contains(bar, node);
	struct bpf_list_node node;
};

struct map_value {
	struct bpf_spin_lock lock;
	struct bpf_list_head head __contains(foo, node);
};

To recognize such types in user BTF, we build a btf_struct_metas array
of metadata items corresponding to each BTF ID. This is done once during
the btf_parse stage to avoid having to do it each time during the
verification process's requirement to inspect the metadata.

Moreover, the computed metadata needs to be passed to some helpers in
future patches which requires allocating them and storing them in the
BTF that is pinned by the program itself, so that valid access can be
assumed to such data during program runtime.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h  |   7 ++
 include/linux/btf.h  |  35 ++++++++
 kernel/bpf/btf.c     | 196 +++++++++++++++++++++++++++++++++++++++----
 kernel/bpf/syscall.c |   4 +
 4 files changed, 224 insertions(+), 18 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 5d627161fbab..ba7781b8922e 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -176,6 +176,7 @@ enum btf_field_type {
 	BPF_KPTR_REF   = (1 << 3),
 	BPF_KPTR       = BPF_KPTR_UNREF | BPF_KPTR_REF,
 	BPF_LIST_HEAD  = (1 << 4),
+	BPF_LIST_NODE  = (1 << 5),
 };
 
 struct btf_field_kptr {
@@ -276,6 +277,8 @@ static inline const char *btf_field_type_name(enum btf_field_type type)
 		return "kptr";
 	case BPF_LIST_HEAD:
 		return "bpf_list_head";
+	case BPF_LIST_NODE:
+		return "bpf_list_node";
 	default:
 		WARN_ON_ONCE(1);
 		return "unknown";
@@ -294,6 +297,8 @@ static inline u32 btf_field_type_size(enum btf_field_type type)
 		return sizeof(u64);
 	case BPF_LIST_HEAD:
 		return sizeof(struct bpf_list_head);
+	case BPF_LIST_NODE:
+		return sizeof(struct bpf_list_node);
 	default:
 		WARN_ON_ONCE(1);
 		return 0;
@@ -312,6 +317,8 @@ static inline u32 btf_field_type_align(enum btf_field_type type)
 		return __alignof__(u64);
 	case BPF_LIST_HEAD:
 		return __alignof__(struct bpf_list_head);
+	case BPF_LIST_NODE:
+		return __alignof__(struct bpf_list_node);
 	default:
 		WARN_ON_ONCE(1);
 		return 0;
diff --git a/include/linux/btf.h b/include/linux/btf.h
index d80345fa566b..a01a8da20021 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -6,6 +6,8 @@
 
 #include <linux/types.h>
 #include <linux/bpfptr.h>
+#include <linux/bsearch.h>
+#include <linux/btf_ids.h>
 #include <uapi/linux/btf.h>
 #include <uapi/linux/bpf.h>
 
@@ -78,6 +80,17 @@ struct btf_id_dtor_kfunc {
 	u32 kfunc_btf_id;
 };
 
+struct btf_struct_meta {
+	u32 btf_id;
+	struct btf_record *record;
+	struct btf_field_offs *field_offs;
+};
+
+struct btf_struct_metas {
+	u32 cnt;
+	struct btf_struct_meta types[];
+};
+
 typedef void (*btf_dtor_kfunc_t)(void *);
 
 extern const struct file_operations btf_fops;
@@ -408,6 +421,23 @@ static inline struct btf_param *btf_params(const struct btf_type *t)
 	return (struct btf_param *)(t + 1);
 }
 
+static inline int btf_id_cmp_func(const void *a, const void *b)
+{
+	const int *pa = a, *pb = b;
+
+	return *pa - *pb;
+}
+
+static inline bool btf_id_set_contains(const struct btf_id_set *set, u32 id)
+{
+	return bsearch(&id, set->ids, set->cnt, sizeof(u32), btf_id_cmp_func) != NULL;
+}
+
+static inline void *btf_id_set8_contains(const struct btf_id_set8 *set, u32 id)
+{
+	return bsearch(&id, set->pairs, set->cnt, sizeof(set->pairs[0]), btf_id_cmp_func);
+}
+
 #ifdef CONFIG_BPF_SYSCALL
 struct bpf_prog;
 
@@ -423,6 +453,7 @@ int register_btf_kfunc_id_set(enum bpf_prog_type prog_type,
 s32 btf_find_dtor_kfunc(struct btf *btf, u32 btf_id);
 int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors, u32 add_cnt,
 				struct module *owner);
+struct btf_struct_meta *btf_find_struct_meta(const struct btf *btf, u32 btf_id);
 #else
 static inline const struct btf_type *btf_type_by_id(const struct btf *btf,
 						    u32 type_id)
@@ -454,6 +485,10 @@ static inline int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dt
 {
 	return 0;
 }
+static inline struct btf_struct_meta *btf_find_struct_meta(const struct btf *btf, u32 btf_id)
+{
+	return NULL;
+}
 #endif
 
 static inline bool btf_type_is_struct_ptr(struct btf *btf, const struct btf_type *t)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 242ba75f990a..bd78fc67a922 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -237,6 +237,7 @@ struct btf {
 	struct rcu_head rcu;
 	struct btf_kfunc_set_tab *kfunc_set_tab;
 	struct btf_id_dtor_kfunc_tab *dtor_kfunc_tab;
+	struct btf_struct_metas *struct_meta_tab;
 
 	/* split BTF support */
 	struct btf *base_btf;
@@ -1642,8 +1643,30 @@ static void btf_free_dtor_kfunc_tab(struct btf *btf)
 	btf->dtor_kfunc_tab = NULL;
 }
 
+static void btf_struct_metas_free(struct btf_struct_metas *tab)
+{
+	int i;
+
+	if (!tab)
+		return;
+	for (i = 0; i < tab->cnt; i++) {
+		btf_record_free(tab->types[i].record);
+		kfree(tab->types[i].field_offs);
+	}
+	kfree(tab);
+}
+
+static void btf_free_struct_meta_tab(struct btf *btf)
+{
+	struct btf_struct_metas *tab = btf->struct_meta_tab;
+
+	btf_struct_metas_free(tab);
+	btf->struct_meta_tab = NULL;
+}
+
 static void btf_free(struct btf *btf)
 {
+	btf_free_struct_meta_tab(btf);
 	btf_free_dtor_kfunc_tab(btf);
 	btf_free_kfunc_set_tab(btf);
 	kvfree(btf->types);
@@ -3356,6 +3379,12 @@ static int btf_get_field_type(const char *name, u32 field_mask, u32 *seen_mask,
 			goto end;
 		}
 	}
+	if (field_mask & BPF_LIST_NODE) {
+		if (!strcmp(name, "bpf_list_node")) {
+			type = BPF_LIST_NODE;
+			goto end;
+		}
+	}
 	/* Only return BPF_KPTR when all other types with matchable names fail */
 	if (field_mask & BPF_KPTR) {
 		type = BPF_KPTR_REF;
@@ -3401,6 +3430,7 @@ static int btf_find_struct_field(const struct btf *btf,
 		switch (field_type) {
 		case BPF_SPIN_LOCK:
 		case BPF_TIMER:
+		case BPF_LIST_NODE:
 			ret = btf_find_struct(btf, member_type, off, sz, field_type,
 					      idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
@@ -3463,6 +3493,7 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 		switch (field_type) {
 		case BPF_SPIN_LOCK:
 		case BPF_TIMER:
+		case BPF_LIST_NODE:
 			ret = btf_find_struct(btf, var_type, off, sz, field_type,
 					      idx < info_cnt ? &info[idx] : &tmp);
 			if (ret < 0)
@@ -3670,6 +3701,8 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
 			if (ret < 0)
 				goto end;
 			break;
+		case BPF_LIST_NODE:
+			break;
 		default:
 			ret = -EFAULT;
 			goto end;
@@ -5135,6 +5168,118 @@ static int btf_parse_hdr(struct btf_verifier_env *env)
 	return btf_check_sec_info(env, btf_data_size);
 }
 
+static const char *local_kptr_fields[] = {
+	"bpf_spin_lock",
+	"bpf_list_head",
+	"bpf_list_node",
+};
+
+static struct btf_struct_metas *
+btf_parse_struct_metas(struct bpf_verifier_log *log, struct btf *btf)
+{
+	union {
+		struct btf_id_set set;
+		struct {
+			u32 _cnt;
+			u32 _ids[ARRAY_SIZE(local_kptr_fields)];
+		} _arr;
+	} lkf;
+	struct btf_struct_metas *tab = NULL;
+	int i, n, id, ret;
+
+	memset(&lkf, 0, sizeof(lkf));
+
+	for (i = 0; i < ARRAY_SIZE(local_kptr_fields); i++) {
+		/* Try to find whether this special type exists in user BTF, and
+		 * if so remember its ID so we can easily find it among members
+		 * of structs that we iterate in the next loop.
+		 */
+		id = btf_find_by_name_kind(btf, local_kptr_fields[i], BTF_KIND_STRUCT);
+		if (id < 0)
+			continue;
+		lkf.set.ids[lkf.set.cnt++] = id;
+	}
+
+	if (!lkf.set.cnt)
+		return NULL;
+	sort(&lkf.set.ids, lkf.set.cnt, sizeof(lkf.set.ids[0]), btf_id_cmp_func, NULL);
+
+	n = btf_nr_types(btf);
+	for (i = 1; i < n; i++) {
+		const struct btf_member *member;
+		struct btf_field_offs *foffs;
+		struct btf_struct_meta *type;
+		struct btf_record *record;
+		const struct btf_type *t;
+		int j;
+
+		t = btf_type_by_id(btf, i);
+		if (!t) {
+			ret = -EINVAL;
+			goto free;
+		}
+		if (!__btf_type_is_struct(t))
+			continue;
+
+		cond_resched();
+
+		for_each_member(j, t, member) {
+			if (btf_id_set_contains(&lkf.set, member->type))
+				goto parse;
+		}
+		continue;
+	parse:
+		if (!tab) {
+			tab = kzalloc(offsetof(struct btf_struct_metas, types[1]),
+				      GFP_KERNEL | __GFP_NOWARN);
+			if (!tab)
+				return ERR_PTR(-ENOMEM);
+		} else {
+			struct btf_struct_metas *new_tab;
+
+			new_tab = krealloc(tab, offsetof(struct btf_struct_metas, types[tab->cnt + 1]),
+					   GFP_KERNEL | __GFP_NOWARN);
+			if (!new_tab) {
+				ret = -ENOMEM;
+				goto free;
+			}
+			tab = new_tab;
+		}
+		type = &tab->types[tab->cnt];
+
+		type->btf_id = i;
+		record = btf_parse_fields(btf, t, BPF_SPIN_LOCK | BPF_LIST_HEAD | BPF_LIST_NODE, t->size);
+		if (IS_ERR_OR_NULL(record)) {
+			ret = PTR_ERR_OR_ZERO(record) ?: -EFAULT;
+			goto free;
+		}
+		foffs = btf_parse_field_offs(record);
+		if (WARN_ON_ONCE(IS_ERR_OR_NULL(foffs))) {
+			btf_record_free(record);
+			ret = -EFAULT;
+			goto free;
+		}
+		type->record = record;
+		type->field_offs = foffs;
+		tab->cnt++;
+	}
+	return tab;
+free:
+	btf_struct_metas_free(tab);
+	return ERR_PTR(ret);
+}
+
+struct btf_struct_meta *btf_find_struct_meta(const struct btf *btf, u32 btf_id)
+{
+	struct btf_struct_metas *tab;
+
+	BUILD_BUG_ON(offsetof(struct btf_struct_meta, btf_id) != 0);
+	tab = btf->struct_meta_tab;
+	if (!tab)
+		return NULL;
+	return bsearch(&btf_id, tab->types, tab->cnt, sizeof(tab->types[0]), btf_id_cmp_func);
+}
+
 static int btf_check_type_tags(struct btf_verifier_env *env,
 			       struct btf *btf, int start_id)
 {
@@ -5185,6 +5330,7 @@ static int btf_check_type_tags(struct btf_verifier_env *env,
 static struct btf *btf_parse(bpfptr_t btf_data, u32 btf_data_size,
 			     u32 log_level, char __user *log_ubuf, u32 log_size)
 {
+	struct btf_struct_metas *struct_meta_tab;
 	struct btf_verifier_env *env = NULL;
 	struct bpf_verifier_log *log;
 	struct btf *btf = NULL;
@@ -5253,15 +5399,24 @@ static struct btf *btf_parse(bpfptr_t btf_data, u32 btf_data_size,
 	if (err)
 		goto errout;
 
+	struct_meta_tab = btf_parse_struct_metas(log, btf);
+	if (IS_ERR(struct_meta_tab)) {
+		err = PTR_ERR(struct_meta_tab);
+		goto errout;
+	}
+	btf->struct_meta_tab = struct_meta_tab;
+
 	if (log->level && bpf_verifier_log_full(log)) {
 		err = -ENOSPC;
-		goto errout;
+		goto errout_meta;
 	}
 
 	btf_verifier_env_free(env);
 	refcount_set(&btf->refcnt, 1);
 	return btf;
 
+errout_meta:
+	btf_free_struct_meta_tab(btf);
 errout:
 	btf_verifier_env_free(env);
 	if (btf)
@@ -6022,6 +6177,28 @@ int btf_struct_access(struct bpf_verifier_log *log,
 	u32 id = reg->btf_id;
 	int err;
 
+	while (type_is_local_kptr(reg->type)) {
+		struct btf_struct_meta *meta;
+		struct btf_record *rec;
+		int i;
+
+		meta = btf_find_struct_meta(btf, id);
+		if (!meta)
+			break;
+		rec = meta->record;
+		for (i = 0; i < rec->cnt; i++) {
+			struct btf_field *field = &rec->fields[i];
+			u32 offset = field->offset;
+			if (off < offset + btf_field_type_size(field->type) && offset < off + size) {
+				bpf_log(log,
+					"direct access to %s is disallowed\n",
+					btf_field_type_name(field->type));
+				return -EACCES;
+			}
+		}
+		break;
+	}
+
 	t = btf_type_by_id(btf, id);
 	do {
 		err = btf_struct_walk(log, btf, t, off, size, &id, &tmp_flag);
@@ -7263,23 +7440,6 @@ bool btf_is_module(const struct btf *btf)
 	return btf->kernel_btf && strcmp(btf->name, "vmlinux") != 0;
 }
 
-static int btf_id_cmp_func(const void *a, const void *b)
-{
-	const int *pa = a, *pb = b;
-
-	return *pa - *pb;
-}
-
-bool btf_id_set_contains(const struct btf_id_set *set, u32 id)
-{
-	return bsearch(&id, set->ids, set->cnt, sizeof(u32), btf_id_cmp_func) != NULL;
-}
-
-static void *btf_id_set8_contains(const struct btf_id_set8 *set, u32 id)
-{
-	return bsearch(&id, set->pairs, set->cnt, sizeof(set->pairs[0]), btf_id_cmp_func);
-}
-
 enum {
 	BTF_MODULE_F_LIVE = (1 << 0),
 };
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index fdbae52f463f..c96039a4e57f 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -537,6 +537,7 @@ void btf_record_free(struct btf_record *rec)
 			btf_put(rec->fields[i].kptr.btf);
 			break;
 		case BPF_LIST_HEAD:
+		case BPF_LIST_NODE:
 			/* Nothing to release for bpf_list_head */
 			break;
 		default:
@@ -582,6 +583,7 @@ struct btf_record *btf_record_dup(const struct btf_record *rec)
 			}
 			break;
 		case BPF_LIST_HEAD:
+		case BPF_LIST_NODE:
 			/* Nothing to acquire for bpf_list_head */
 			break;
 		default:
@@ -648,6 +650,8 @@ void bpf_obj_free_fields(const struct btf_record *rec, void *obj)
 				continue;
 			bpf_list_head_free(field, field_ptr, obj + rec->spin_lock_off);
 			break;
+		case BPF_LIST_NODE:
+			break;
 		default:
 			WARN_ON_ONCE(1);
 			continue;
-- 
2.38.1

[PATCH bpf-next v3 12/24] bpf: Verify ownership relationships for user BTF types

[Kumar Kartikeya Dwivedi]

Ensure that there can be no ownership cycles among different types by
way of having owning objects that can hold some other type as their
element. For instance, a map value can only hold local kptrs, but these
are allowed to have another bpf_list_head. To prevent unbounded
recursion while freeing resources, elements of bpf_list_head in local
kptrs can never have a bpf_list_head which are part of list in a map
value.

Also, to make runtime destruction easier, once btf_struct_metas is fully
populated, we can stash the metadata of the value type directly in the
metadata of the list_head fields, as that allows easier access to the
value type's layout to destruct it at runtime from the btf_field entry
of the list head itself.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h  |  1 +
 include/linux/btf.h  |  1 +
 kernel/bpf/btf.c     | 71 ++++++++++++++++++++++++++++++++++++++++++++
 kernel/bpf/syscall.c |  4 +++
 4 files changed, 77 insertions(+)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index ba7781b8922e..489f73f19307 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -190,6 +190,7 @@ struct btf_field_list_head {
 	struct btf *btf;
 	u32 value_btf_id;
 	u32 node_offset;
+	struct btf_record *value_rec;
 };
 
 struct btf_field {
diff --git a/include/linux/btf.h b/include/linux/btf.h
index a01a8da20021..42d8f3730a8d 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -178,6 +178,7 @@ int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
 int btf_find_timer(const struct btf *btf, const struct btf_type *t);
 struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type *t,
 				    u32 field_mask, u32 value_size);
+int btf_check_and_fixup_fields(const struct btf *btf, struct btf_record *rec);
 struct btf_field_offs *btf_parse_field_offs(struct btf_record *rec);
 bool btf_type_is_void(const struct btf_type *t);
 s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index bd78fc67a922..f0d2caf7f2f1 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3722,6 +3722,67 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
 	return ERR_PTR(ret);
 }
 
+int btf_check_and_fixup_fields(const struct btf *btf, struct btf_record *rec)
+{
+	int i;
+
+	/* There are two owning types, kptr_ref and bpf_list_head. The former
+	 * only supports storing kernel types, which can never store references
+	 * to program allocated local types, atleast not yet. Hence we only need
+	 * to ensure that bpf_list_head ownership does not form cycles.
+	 */
+	if (IS_ERR_OR_NULL(rec) || !(rec->field_mask & BPF_LIST_HEAD))
+		return 0;
+	for (i = 0; i < rec->cnt; i++) {
+		struct btf_struct_meta *meta;
+		u32 btf_id;
+
+		if (!(rec->fields[i].type & BPF_LIST_HEAD))
+			continue;
+		btf_id = rec->fields[i].list_head.value_btf_id;
+		meta = btf_find_struct_meta(btf, btf_id);
+		if (!meta)
+			return -EFAULT;
+		rec->fields[i].list_head.value_rec = meta->record;
+
+		if (!(rec->field_mask & BPF_LIST_NODE))
+			continue;
+
+		/* We need to ensure ownership acyclicity among all types. The
+		 * proper way to do it would be to topologically sort all BTF
+		 * IDs based on the ownership edges, since there can be multiple
+		 * bpf_list_head in a type. Instead, we use the following
+		 * reasoning:
+		 *
+		 * - A type can only be owned by another type in user BTF if it
+		 *   has a bpf_list_node.
+		 * - A type can only _own_ another type in user BTF if it has a
+		 *   bpf_list_head.
+		 *
+		 * We ensure that if a type has both bpf_list_head and
+		 * bpf_list_node, its element types cannot be owning types.
+		 *
+		 * To ensure acyclicity:
+		 *
+		 * When A only has bpf_list_head, ownership chain can be:
+		 *	A -> B -> C
+		 * Where:
+		 * - B has both bpf_list_head and bpf_list_node.
+		 * - C only has bpf_list_node.
+		 *
+		 * When A has both bpf_list_head and bpf_list_node, some other
+		 * type already owns it in the BTF domain, hence it can not own
+		 * another owning type through any of the bpf_list_head edges.
+		 *	A -> B
+		 * Where:
+		 * - B only has bpf_list_node.
+		 */
+		if (meta->record->field_mask & BPF_LIST_HEAD)
+			return -ELOOP;
+	}
+	return 0;
+}
+
 static int btf_field_offs_cmp(const void *_a, const void *_b, const void *priv)
 {
 	const u32 a = *(const u32 *)_a;
@@ -5406,6 +5467,16 @@ static struct btf *btf_parse(bpfptr_t btf_data, u32 btf_data_size,
 	}
 	btf->struct_meta_tab = struct_meta_tab;
 
+	if (struct_meta_tab) {
+		int i;
+
+		for (i = 0; i < struct_meta_tab->cnt; i++) {
+			err = btf_check_and_fixup_fields(btf, struct_meta_tab->types[i].record);
+			if (err < 0)
+				goto errout_meta;
+		}
+	}
+
 	if (log->level && bpf_verifier_log_full(log)) {
 		err = -ENOSPC;
 		goto errout_meta;
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index c96039a4e57f..4669020bb47d 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1044,6 +1044,10 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 		}
 	}
 
+	ret = btf_check_and_fixup_fields(btf, map->record);
+	if (ret < 0)
+		goto free_map_tab;
+
 	if (map->ops->map_check_btf) {
 		ret = map->ops->map_check_btf(map, btf, key_type, value_type);
 		if (ret < 0)
-- 
2.38.1

[PATCH bpf-next v3 13/24] bpf: Support locking bpf_spin_lock in local kptr

[Kumar Kartikeya Dwivedi]

Allow locking a bpf_spin_lock embedded in local kptr, in addition to
already support map value pointers. The handling is similar to that of
map values, by just preserving the reg->id of local kptrs as well, and
adjusting process_spin_lock to work with non-PTR_TO_MAP_VALUE and
remember the id in verifier state.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/helpers.c  |  2 ++
 kernel/bpf/verifier.c | 70 ++++++++++++++++++++++++++++++++-----------
 2 files changed, 55 insertions(+), 17 deletions(-)

diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index b1ee50953efc..e2441b70d3ed 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -336,6 +336,7 @@ const struct bpf_func_proto bpf_spin_lock_proto = {
 	.gpl_only	= false,
 	.ret_type	= RET_VOID,
 	.arg1_type	= ARG_PTR_TO_SPIN_LOCK,
+	.arg1_btf_id    = BPF_PTR_POISON,
 };
 
 static inline void __bpf_spin_unlock_irqrestore(struct bpf_spin_lock *lock)
@@ -358,6 +359,7 @@ const struct bpf_func_proto bpf_spin_unlock_proto = {
 	.gpl_only	= false,
 	.ret_type	= RET_VOID,
 	.arg1_type	= ARG_PTR_TO_SPIN_LOCK,
+	.arg1_btf_id    = BPF_PTR_POISON,
 };
 
 void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index e56b960546f0..bbb5449630a1 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -453,8 +453,16 @@ static bool reg_type_not_null(enum bpf_reg_type type)
 
 static bool reg_may_point_to_spin_lock(const struct bpf_reg_state *reg)
 {
-	return reg->type == PTR_TO_MAP_VALUE &&
-	       btf_record_has_field(reg->map_ptr->record, BPF_SPIN_LOCK);
+	struct btf_record *rec = NULL;
+
+	if (reg->type == PTR_TO_MAP_VALUE) {
+		rec = reg->map_ptr->record;
+	} else if (reg->type == (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
+		struct btf_struct_meta *meta = btf_find_struct_meta(reg->btf, reg->btf_id);
+		if (meta)
+			rec = meta->record;
+	}
+	return btf_record_has_field(rec, BPF_SPIN_LOCK);
 }
 
 static bool type_is_rdonly_mem(u32 type)
@@ -5422,8 +5430,10 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
 	struct bpf_verifier_state *cur = env->cur_state;
 	bool is_const = tnum_is_const(reg->var_off);
-	struct bpf_map *map = reg->map_ptr;
 	u64 val = reg->var_off.value;
+	struct bpf_map *map = NULL;
+	struct btf_record *rec;
+	struct btf *btf = NULL;
 
 	if (!is_const) {
 		verbose(env,
@@ -5431,19 +5441,32 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 			regno);
 		return -EINVAL;
 	}
-	if (!map->btf) {
-		verbose(env,
-			"map '%s' has to have BTF in order to use bpf_spin_lock\n",
-			map->name);
-		return -EINVAL;
+	if (reg->type == PTR_TO_MAP_VALUE) {
+		map = reg->map_ptr;
+		if (!map->btf) {
+			verbose(env,
+				"map '%s' has to have BTF in order to use bpf_spin_lock\n",
+				map->name);
+			return -EINVAL;
+		}
+		rec = map->record;
+	} else {
+		struct btf_struct_meta *meta;
+
+		btf = reg->btf;
+		meta = btf_find_struct_meta(reg->btf, reg->btf_id);
+		if (meta)
+			rec = meta->record;
 	}
-	if (!btf_record_has_field(map->record, BPF_SPIN_LOCK)) {
-		verbose(env, "map '%s' has no valid bpf_spin_lock\n", map->name);
+
+	if (!btf_record_has_field(rec, BPF_SPIN_LOCK)) {
+		verbose(env, "%s '%s' has no valid bpf_spin_lock\n", map ? "map" : "local",
+			map ? map->name : "kptr");
 		return -EINVAL;
 	}
-	if (map->record->spin_lock_off != val + reg->off) {
+	if (rec->spin_lock_off != val + reg->off) {
 		verbose(env, "off %lld doesn't point to 'struct bpf_spin_lock' that is at %d\n",
-			val + reg->off, map->record->spin_lock_off);
+			val + reg->off, rec->spin_lock_off);
 		return -EINVAL;
 	}
 	if (is_lock) {
@@ -5649,13 +5672,19 @@ static const struct bpf_reg_types int_ptr_types = {
 	},
 };
 
+static const struct bpf_reg_types spin_lock_types = {
+	.types = {
+		PTR_TO_MAP_VALUE,
+		PTR_TO_BTF_ID | MEM_TYPE_LOCAL,
+	}
+};
+
 static const struct bpf_reg_types fullsock_types = { .types = { PTR_TO_SOCKET } };
 static const struct bpf_reg_types scalar_types = { .types = { SCALAR_VALUE } };
 static const struct bpf_reg_types context_types = { .types = { PTR_TO_CTX } };
 static const struct bpf_reg_types alloc_mem_types = { .types = { PTR_TO_MEM | MEM_ALLOC } };
 static const struct bpf_reg_types const_map_ptr_types = { .types = { CONST_PTR_TO_MAP } };
 static const struct bpf_reg_types btf_ptr_types = { .types = { PTR_TO_BTF_ID } };
-static const struct bpf_reg_types spin_lock_types = { .types = { PTR_TO_MAP_VALUE } };
 static const struct bpf_reg_types percpu_btf_ptr_types = { .types = { PTR_TO_BTF_ID | MEM_PERCPU } };
 static const struct bpf_reg_types func_ptr_types = { .types = { PTR_TO_FUNC } };
 static const struct bpf_reg_types stack_ptr_types = { .types = { PTR_TO_STACK } };
@@ -5780,6 +5809,11 @@ static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
 				return -EACCES;
 			}
 		}
+	} else if (reg->type == (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
+		if (meta->func_id != BPF_FUNC_spin_lock && meta->func_id != BPF_FUNC_spin_unlock) {
+			verbose(env, "verifier internal error: unimplemented handling of local kptr\n");
+			return -EFAULT;
+		}
 	}
 
 	return 0;
@@ -5896,7 +5930,8 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
 		goto skip_type_check;
 
 	/* arg_btf_id and arg_size are in a union. */
-	if (base_type(arg_type) == ARG_PTR_TO_BTF_ID)
+	if (base_type(arg_type) == ARG_PTR_TO_BTF_ID ||
+	    base_type(arg_type) == ARG_PTR_TO_SPIN_LOCK)
 		arg_btf_id = fn->arg_btf_id[arg];
 
 	err = check_reg_type(env, regno, arg_type, arg_btf_id, meta);
@@ -6514,9 +6549,10 @@ static bool check_btf_id_ok(const struct bpf_func_proto *fn)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(fn->arg_type); i++) {
-		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
-			return false;
-
+		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_BTF_ID)
+			return !!fn->arg_btf_id[i];
+		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_SPIN_LOCK)
+			return fn->arg_btf_id[i] == BPF_PTR_POISON;
 		if (base_type(fn->arg_type[i]) != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i] &&
 		    /* arg_btf_id and arg_size are in a union. */
 		    (base_type(fn->arg_type[i]) != ARG_PTR_TO_MEM ||
-- 
2.38.1

[PATCH bpf-next v3 14/24] bpf: Allow locking bpf_spin_lock global variables

[Kumar Kartikeya Dwivedi]

Global variables reside in maps accessible using direct_value_addr
callbacks, so giving each load instruction's rewrite a unique reg->id
disallows us from holding locks which are global.

This is not great, so refactor the active_spin_lock into two separate
fields, active_spin_lock_ptr and active_spin_lock_id, which is generic
enough to allow it for global variables, map lookups, and local kptr
registers at the same time.

Held vs non-held is indicated by active_spin_lock_ptr, which stores the
reg->map_ptr or reg->btf pointer of the register used for locking spin
lock. But the active_spin_lock_id also needs to be compared to ensure
whether bpf_spin_unlock is for the same register.

Next, pseudo load instructions are not given a unique reg->id, as they
are doing lookup for the same map value (max_entries is never greater
than 1).

Essentially, we consider that the tuple of (active_spin_lock_ptr,
active_spin_lock_id) will always be unique for any kind of argument to
bpf_spin_{lock,unlock}.

Note that this can be extended in the future to also remember offset
used for locking, so that we can introduce multiple bpf_spin_lock fields
in the same allocation.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf_verifier.h |  3 ++-
 kernel/bpf/verifier.c        | 39 +++++++++++++++++++++++++-----------
 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 1a32baa78ce2..bb71c59f21f6 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -323,7 +323,8 @@ struct bpf_verifier_state {
 	u32 branches;
 	u32 insn_idx;
 	u32 curframe;
-	u32 active_spin_lock;
+	void *active_spin_lock_ptr;
+	u32 active_spin_lock_id;
 	bool speculative;
 
 	/* first and last insn idx of this verifier state */
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index bbb5449630a1..b91b5a790d3e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1201,7 +1201,8 @@ static int copy_verifier_state(struct bpf_verifier_state *dst_state,
 	}
 	dst_state->speculative = src->speculative;
 	dst_state->curframe = src->curframe;
-	dst_state->active_spin_lock = src->active_spin_lock;
+	dst_state->active_spin_lock_ptr = src->active_spin_lock_ptr;
+	dst_state->active_spin_lock_id = src->active_spin_lock_id;
 	dst_state->branches = src->branches;
 	dst_state->parent = src->parent;
 	dst_state->first_insn_idx = src->first_insn_idx;
@@ -5470,22 +5471,35 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 		return -EINVAL;
 	}
 	if (is_lock) {
-		if (cur->active_spin_lock) {
+		if (cur->active_spin_lock_ptr) {
 			verbose(env,
 				"Locking two bpf_spin_locks are not allowed\n");
 			return -EINVAL;
 		}
-		cur->active_spin_lock = reg->id;
+		if (map)
+			cur->active_spin_lock_ptr = map;
+		else
+			cur->active_spin_lock_ptr = btf;
+		cur->active_spin_lock_id = reg->id;
 	} else {
-		if (!cur->active_spin_lock) {
+		void *ptr;
+
+		if (map)
+			ptr = map;
+		else
+			ptr = btf;
+
+		if (!cur->active_spin_lock_ptr) {
 			verbose(env, "bpf_spin_unlock without taking a lock\n");
 			return -EINVAL;
 		}
-		if (cur->active_spin_lock != reg->id) {
+		if (cur->active_spin_lock_ptr != ptr ||
+		    cur->active_spin_lock_id != reg->id) {
 			verbose(env, "bpf_spin_unlock of different lock\n");
 			return -EINVAL;
 		}
-		cur->active_spin_lock = 0;
+		cur->active_spin_lock_ptr = NULL;
+		cur->active_spin_lock_id = 0;
 	}
 	return 0;
 }
@@ -10392,8 +10406,8 @@ static int check_ld_imm(struct bpf_verifier_env *env, struct bpf_insn *insn)
 	    insn->src_reg == BPF_PSEUDO_MAP_IDX_VALUE) {
 		dst_reg->type = PTR_TO_MAP_VALUE;
 		dst_reg->off = aux->map_off;
-		if (btf_record_has_field(map->record, BPF_SPIN_LOCK))
-			dst_reg->id = ++env->id_gen;
+		WARN_ON_ONCE(map->max_entries != 1);
+		/* We want reg->id to be same (0) as map_value is not distinct */
 	} else if (insn->src_reg == BPF_PSEUDO_MAP_FD ||
 		   insn->src_reg == BPF_PSEUDO_MAP_IDX) {
 		dst_reg->type = CONST_PTR_TO_MAP;
@@ -10471,7 +10485,7 @@ static int check_ld_abs(struct bpf_verifier_env *env, struct bpf_insn *insn)
 		return err;
 	}
 
-	if (env->cur_state->active_spin_lock) {
+	if (env->cur_state->active_spin_lock_ptr) {
 		verbose(env, "BPF_LD_[ABS|IND] cannot be used inside bpf_spin_lock-ed region\n");
 		return -EINVAL;
 	}
@@ -11737,7 +11751,8 @@ static bool states_equal(struct bpf_verifier_env *env,
 	if (old->speculative && !cur->speculative)
 		return false;
 
-	if (old->active_spin_lock != cur->active_spin_lock)
+	if (old->active_spin_lock_ptr != cur->active_spin_lock_ptr ||
+	    old->active_spin_lock_id != cur->active_spin_lock_id)
 		return false;
 
 	/* for states to be equal callsites have to be the same
@@ -12376,7 +12391,7 @@ static int do_check(struct bpf_verifier_env *env)
 					return -EINVAL;
 				}
 
-				if (env->cur_state->active_spin_lock &&
+				if (env->cur_state->active_spin_lock_ptr &&
 				    (insn->src_reg == BPF_PSEUDO_CALL ||
 				     insn->imm != BPF_FUNC_spin_unlock)) {
 					verbose(env, "function calls are not allowed while holding a lock\n");
@@ -12413,7 +12428,7 @@ static int do_check(struct bpf_verifier_env *env)
 					return -EINVAL;
 				}
 
-				if (env->cur_state->active_spin_lock) {
+				if (env->cur_state->active_spin_lock_ptr) {
 					verbose(env, "bpf_spin_unlock is missing\n");
 					return -EINVAL;
 				}
-- 
2.38.1

[PATCH bpf-next v3 15/24] bpf: Rewrite kfunc argument handling

[Kumar Kartikeya Dwivedi]

As we continue to add more features, argument types, kfunc flags, and
different extensions to kfuncs, the code to verify the correctness of
the kfunc prototype wrt the passed in registers has become ad-hoc and
ugly to read.

To make life easier, and make a very clear split between different
stages of argument processing, move all the code into verifier.c and
refactor into easier to read helpers and functions.

This also makes sharing code within the verifier easier with kfunc
argument processing. This will be more and more useful in later patches
as we are now moving to implement very core BPF helpers as kfuncs, to
keep them experimental before baking into UAPI.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/btf.h                           |  31 +-
 kernel/bpf/btf.c                              |  16 +-
 kernel/bpf/verifier.c                         | 545 +++++++++++++++++-
 .../bpf/prog_tests/kfunc_dynptr_param.c       |   2 +-
 tools/testing/selftests/bpf/verifier/calls.c  |   4 +-
 .../selftests/bpf/verifier/ref_tracking.c     |   4 +-
 6 files changed, 568 insertions(+), 34 deletions(-)

diff --git a/include/linux/btf.h b/include/linux/btf.h
index 42d8f3730a8d..d5b26380a60f 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -338,6 +338,16 @@ static inline bool btf_type_is_struct(const struct btf_type *t)
 	return kind == BTF_KIND_STRUCT || kind == BTF_KIND_UNION;
 }
 
+static inline bool __btf_type_is_struct(const struct btf_type *t)
+{
+	return BTF_INFO_KIND(t->info) == BTF_KIND_STRUCT;
+}
+
+static inline bool btf_type_is_array(const struct btf_type *t)
+{
+	return BTF_INFO_KIND(t->info) == BTF_KIND_ARRAY;
+}
+
 static inline u16 btf_type_vlen(const struct btf_type *t)
 {
 	return BTF_INFO_VLEN(t->info);
@@ -439,9 +449,10 @@ static inline void *btf_id_set8_contains(const struct btf_id_set8 *set, u32 id)
 	return bsearch(&id, set->pairs, set->cnt, sizeof(set->pairs[0]), btf_id_cmp_func);
 }
 
-#ifdef CONFIG_BPF_SYSCALL
 struct bpf_prog;
+struct bpf_verifier_log;
 
+#ifdef CONFIG_BPF_SYSCALL
 const struct btf_type *btf_type_by_id(const struct btf *btf, u32 type_id);
 const char *btf_name_by_offset(const struct btf *btf, u32 offset);
 struct btf *btf_parse_vmlinux(void);
@@ -455,6 +466,12 @@ s32 btf_find_dtor_kfunc(struct btf *btf, u32 btf_id);
 int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors, u32 add_cnt,
 				struct module *owner);
 struct btf_struct_meta *btf_find_struct_meta(const struct btf *btf, u32 btf_id);
+const struct btf_member *
+btf_get_prog_ctx_type(struct bpf_verifier_log *log, const struct btf *btf,
+		      const struct btf_type *t, enum bpf_prog_type prog_type,
+		      int arg);
+bool btf_types_are_same(const struct btf *btf1, u32 id1,
+			const struct btf *btf2, u32 id2);
 #else
 static inline const struct btf_type *btf_type_by_id(const struct btf *btf,
 						    u32 type_id)
@@ -490,6 +507,18 @@ static inline struct btf_struct_meta *btf_find_struct_meta(const struct btf *btf
 {
 	return NULL;
 }
+static inline const struct btf_member *
+btf_get_prog_ctx_type(struct bpf_verifier_log *log, const struct btf *btf,
+		      const struct btf_type *t, enum bpf_prog_type prog_type,
+		      int arg)
+{
+	return NULL;
+}
+static inline bool btf_types_are_same(const struct btf *btf1, u32 id1,
+				      const struct btf *btf2, u32 id2)
+{
+	return false;
+}
 #endif
 
 static inline bool btf_type_is_struct_ptr(struct btf *btf, const struct btf_type *t)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index f0d2caf7f2f1..b63e0bb968f2 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -478,16 +478,6 @@ static bool btf_type_nosize_or_null(const struct btf_type *t)
 	return !t || btf_type_nosize(t);
 }
 
-static bool __btf_type_is_struct(const struct btf_type *t)
-{
-	return BTF_INFO_KIND(t->info) == BTF_KIND_STRUCT;
-}
-
-static bool btf_type_is_array(const struct btf_type *t)
-{
-	return BTF_INFO_KIND(t->info) == BTF_KIND_ARRAY;
-}
-
 static bool btf_type_is_datasec(const struct btf_type *t)
 {
 	return BTF_INFO_KIND(t->info) == BTF_KIND_DATASEC;
@@ -5529,7 +5519,7 @@ static u8 bpf_ctx_convert_map[] = {
 #undef BPF_MAP_TYPE
 #undef BPF_LINK_TYPE
 
-static const struct btf_member *
+const struct btf_member *
 btf_get_prog_ctx_type(struct bpf_verifier_log *log, const struct btf *btf,
 		      const struct btf_type *t, enum bpf_prog_type prog_type,
 		      int arg)
@@ -6315,8 +6305,8 @@ int btf_struct_access(struct bpf_verifier_log *log,
  * end up with two different module BTFs, but IDs point to the common type in
  * vmlinux BTF.
  */
-static bool btf_types_are_same(const struct btf *btf1, u32 id1,
-			       const struct btf *btf2, u32 id2)
+bool btf_types_are_same(const struct btf *btf1, u32 id1,
+			const struct btf *btf2, u32 id2)
 {
 	if (id1 != id2)
 		return false;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index b91b5a790d3e..52e69befb522 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7674,19 +7674,521 @@ static void mark_btf_func_reg_size(struct bpf_verifier_env *env, u32 regno,
 	}
 }
 
+struct bpf_kfunc_call_arg_meta {
+	/* In parameters */
+	struct btf *btf;
+	u32 func_id;
+	u32 kfunc_flags;
+	const struct btf_type *func_proto;
+	const char *func_name;
+	/* Out parameters */
+	u32 ref_obj_id;
+	u8 release_regno;
+	bool r0_rdonly;
+	u64 r0_size;
+};
+
+static bool is_kfunc_acquire(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_ACQUIRE;
+}
+
+static bool is_kfunc_ret_null(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_RET_NULL;
+}
+
+static bool is_kfunc_release(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_RELEASE;
+}
+
+static bool is_kfunc_trusted_args(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_TRUSTED_ARGS;
+}
+
+static bool is_kfunc_sleepable(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_SLEEPABLE;
+}
+
+static bool is_kfunc_destructive(struct bpf_kfunc_call_arg_meta *meta)
+{
+	return meta->kfunc_flags & KF_DESTRUCTIVE;
+}
+
+static bool is_kfunc_arg_kptr_get(struct bpf_kfunc_call_arg_meta *meta, int arg)
+{
+	return arg == 0 && (meta->kfunc_flags & KF_KPTR_GET);
+}
+
+static bool is_kfunc_arg_mem_size(const struct btf *btf,
+				  const struct btf_param *arg,
+				  const struct bpf_reg_state *reg)
+{
+	int len, sfx_len = sizeof("__sz") - 1;
+	const struct btf_type *t;
+	const char *param_name;
+
+	t = btf_type_skip_modifiers(btf, arg->type, NULL);
+	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
+		return false;
+
+	/* In the future, this can be ported to use BTF tagging */
+	param_name = btf_name_by_offset(btf, arg->name_off);
+	if (str_is_empty(param_name))
+		return false;
+	len = strlen(param_name);
+	if (len < sfx_len)
+		return false;
+	param_name += len - sfx_len;
+	if (strncmp(param_name, "__sz", sfx_len))
+		return false;
+
+	return true;
+}
+
+static bool is_kfunc_arg_ret_buf_size(const struct btf *btf,
+				      const struct btf_param *arg,
+				      const struct bpf_reg_state *reg,
+				      const char *name)
+{
+	int len, target_len = strlen(name);
+	const struct btf_type *t;
+	const char *param_name;
+
+	t = btf_type_skip_modifiers(btf, arg->type, NULL);
+	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
+		return false;
+
+	param_name = btf_name_by_offset(btf, arg->name_off);
+	if (str_is_empty(param_name))
+		return false;
+	len = strlen(param_name);
+	if (len != target_len)
+		return false;
+	if (strcmp(param_name, name))
+		return false;
+
+	return true;
+}
+
+enum {
+	KF_ARG_DYNPTR_ID,
+};
+
+BTF_ID_LIST(kf_arg_btf_ids)
+BTF_ID(struct, bpf_dynptr_kern)
+
+static bool is_kfunc_arg_dynptr(const struct btf *btf,
+				const struct btf_param *arg)
+{
+	const struct btf_type *t;
+	u32 res_id;
+
+	t = btf_type_skip_modifiers(btf, arg->type, NULL);
+	if (!t)
+		return false;
+	if (!btf_type_is_ptr(t))
+		return false;
+	t = btf_type_skip_modifiers(btf, t->type, &res_id);
+	if (!t)
+		return false;
+	return btf_types_are_same(btf, res_id, btf_vmlinux, kf_arg_btf_ids[KF_ARG_DYNPTR_ID]);
+}
+
+/* Returns true if struct is composed of scalars, 4 levels of nesting allowed */
+static bool __btf_type_is_scalar_struct(struct bpf_verifier_env *env,
+					const struct btf *btf,
+					const struct btf_type *t, int rec)
+{
+	const struct btf_type *member_type;
+	const struct btf_member *member;
+	u32 i;
+
+	if (!btf_type_is_struct(t))
+		return false;
+
+	for_each_member(i, t, member) {
+		const struct btf_array *array;
+
+		member_type = btf_type_skip_modifiers(btf, member->type, NULL);
+		if (btf_type_is_struct(member_type)) {
+			if (rec >= 3) {
+				verbose(env, "max struct nesting depth exceeded\n");
+				return false;
+			}
+			if (!__btf_type_is_scalar_struct(env, btf, member_type, rec + 1))
+				return false;
+			continue;
+		}
+		if (btf_type_is_array(member_type)) {
+			array = btf_array(member_type);
+			if (!array->nelems)
+				return false;
+			member_type = btf_type_skip_modifiers(btf, array->type, NULL);
+			if (!btf_type_is_scalar(member_type))
+				return false;
+			continue;
+		}
+		if (!btf_type_is_scalar(member_type))
+			return false;
+	}
+	return true;
+}
+
+
+static u32 *reg2btf_ids[__BPF_REG_TYPE_MAX] = {
+#ifdef CONFIG_NET
+	[PTR_TO_SOCKET] = &btf_sock_ids[BTF_SOCK_TYPE_SOCK],
+	[PTR_TO_SOCK_COMMON] = &btf_sock_ids[BTF_SOCK_TYPE_SOCK_COMMON],
+	[PTR_TO_TCP_SOCK] = &btf_sock_ids[BTF_SOCK_TYPE_TCP],
+#endif
+};
+
+enum kfunc_ptr_arg_type {
+	KF_ARG_PTR_TO_CTX,
+	KF_ARG_PTR_TO_BTF_ID,	     /* Also covers reg2btf_ids conversions */
+	KF_ARG_PTR_TO_KPTR_STRONG,   /* PTR_TO_KPTR but type specific */
+	KF_ARG_PTR_TO_DYNPTR,
+	KF_ARG_PTR_TO_MEM,
+	KF_ARG_PTR_TO_MEM_SIZE,	     /* Size derived from next argument, skip it */
+};
+
+static enum kfunc_ptr_arg_type
+get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
+		       struct bpf_kfunc_call_arg_meta *meta,
+		       const struct btf_type *t, const struct btf_type *ref_t,
+		       const char *ref_tname, const struct btf_param *args,
+		       int argno, int nargs)
+{
+	u32 regno = argno + 1;
+	struct bpf_reg_state *regs = cur_regs(env);
+	struct bpf_reg_state *reg = &regs[regno];
+	bool arg_mem_size = false;
+
+	/* In this function, we verify the kfunc's BTF as per the argument type,
+	 * leaving the rest of the verification with respect to the register
+	 * type to our caller. When a set of conditions hold in the BTF type of
+	 * arguments, we resolve it to a known kfunc_ptr_arg_type.
+	 */
+	if (btf_get_prog_ctx_type(&env->log, meta->btf, t, resolve_prog_type(env->prog), argno))
+		return KF_ARG_PTR_TO_CTX;
+
+	if ((base_type(reg->type) == PTR_TO_BTF_ID || reg2btf_ids[base_type(reg->type)])) {
+		if (!btf_type_is_struct(ref_t)) {
+			verbose(env, "kernel function %s args#%d pointer type %s %s is not supported\n",
+				meta->func_name, argno, btf_type_str(ref_t), ref_tname);
+			return -EINVAL;
+		}
+		return KF_ARG_PTR_TO_BTF_ID;
+	}
+
+	if (is_kfunc_arg_kptr_get(meta, argno)) {
+		if (!btf_type_is_ptr(ref_t)) {
+			verbose(env, "arg#0 BTF type must be a double pointer for kptr_get kfunc\n");
+			return -EINVAL;
+		}
+		ref_t = btf_type_by_id(meta->btf, ref_t->type);
+		ref_tname = btf_name_by_offset(meta->btf, ref_t->name_off);
+		if (!btf_type_is_struct(ref_t)) {
+			verbose(env, "kernel function %s args#0 pointer type %s %s is not supported\n",
+				meta->func_name, btf_type_str(ref_t), ref_tname);
+			return -EINVAL;
+		}
+		return KF_ARG_PTR_TO_KPTR_STRONG;
+	}
+
+	if (is_kfunc_arg_dynptr(meta->btf, &args[argno]))
+		return KF_ARG_PTR_TO_DYNPTR;
+
+	if (argno + 1 < nargs && is_kfunc_arg_mem_size(meta->btf, &args[argno + 1], &regs[regno + 1]))
+		arg_mem_size = true;
+
+	/* This is the catch all argument type of register types supported by
+	 * check_helper_mem_access. However, we only allow when argument type is
+	 * pointer to scalar, or struct composed (recursively) of scalars. When
+	 * arg_mem_size is true, the pointer can be void *.
+	 */
+	if (!btf_type_is_scalar(ref_t) && !__btf_type_is_scalar_struct(env, meta->btf, ref_t, 0) &&
+	    (arg_mem_size ? !btf_type_is_void(ref_t) : 1)) {
+		verbose(env, "arg#%d pointer type %s %s must point to %sscalar, or struct with scalar\n",
+			argno, btf_type_str(ref_t), ref_tname, arg_mem_size ? "void, " : "");
+		return -EINVAL;
+	}
+	return arg_mem_size ? KF_ARG_PTR_TO_MEM_SIZE : KF_ARG_PTR_TO_MEM;
+}
+
+static int process_kf_arg_ptr_to_btf_id(struct bpf_verifier_env *env,
+					struct bpf_reg_state *reg,
+					const struct btf_type *ref_t,
+					const char *ref_tname, u32 ref_id,
+					struct bpf_kfunc_call_arg_meta *meta,
+					int argno)
+{
+	const struct btf_type *reg_ref_t;
+	bool strict_type_match = false;
+	const struct btf *reg_btf;
+	const char *reg_ref_tname;
+	u32 reg_ref_id;
+
+	if (reg->type == PTR_TO_BTF_ID) {
+		reg_btf = reg->btf;
+		reg_ref_id = reg->btf_id;
+	} else {
+		reg_btf = btf_vmlinux;
+		reg_ref_id = *reg2btf_ids[base_type(reg->type)];
+	}
+
+	if (is_kfunc_trusted_args(meta) || (is_kfunc_release(meta) && reg->ref_obj_id))
+		strict_type_match = true;
+
+	reg_ref_t = btf_type_skip_modifiers(reg_btf, reg_ref_id, &reg_ref_id);
+	reg_ref_tname = btf_name_by_offset(reg_btf, reg_ref_t->name_off);
+	if (!btf_struct_ids_match(&env->log, reg_btf, reg_ref_id, reg->off, meta->btf, ref_id, strict_type_match)) {
+		verbose(env, "kernel function %s args#%d expected pointer to %s %s but R%d has a pointer to %s %s\n",
+			meta->func_name, argno, btf_type_str(ref_t), ref_tname, argno + 1,
+			btf_type_str(reg_ref_t), reg_ref_tname);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int process_kf_arg_ptr_to_kptr_strong(struct bpf_verifier_env *env,
+					     struct bpf_reg_state *reg,
+					     const struct btf_type *ref_t,
+					     const char *ref_tname,
+					     struct bpf_kfunc_call_arg_meta *meta,
+					     int argno)
+{
+	struct btf_field *kptr_field;
+
+	/* check_func_arg_reg_off allows var_off for
+	 * PTR_TO_MAP_VALUE, but we need fixed offset to find
+	 * off_desc.
+	 */
+	if (!tnum_is_const(reg->var_off)) {
+		verbose(env, "arg#0 must have constant offset\n");
+		return -EINVAL;
+	}
+
+	kptr_field = btf_record_find(reg->map_ptr->record, reg->off + reg->var_off.value, BPF_KPTR);
+	if (!kptr_field || kptr_field->type != BPF_KPTR_REF) {
+		verbose(env, "arg#0 no referenced kptr at map value offset=%llu\n",
+			reg->off + reg->var_off.value);
+		return -EINVAL;
+	}
+
+	if (!btf_struct_ids_match(&env->log, meta->btf, ref_t->type, 0, kptr_field->kptr.btf,
+				  kptr_field->kptr.btf_id, true)) {
+		verbose(env, "kernel function %s args#%d expected pointer to %s %s\n",
+			meta->func_name, argno, btf_type_str(ref_t), ref_tname);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_arg_meta *meta)
+{
+	const char *func_name = meta->func_name, *ref_tname;
+	const struct btf *btf = meta->btf;
+	const struct btf_param *args;
+	u32 i, nargs;
+	int ret;
+
+	args = (const struct btf_param *)(meta->func_proto + 1);
+	nargs = btf_type_vlen(meta->func_proto);
+	if (nargs > MAX_BPF_FUNC_REG_ARGS) {
+		verbose(env, "Function %s has %d > %d args\n", func_name, nargs,
+			MAX_BPF_FUNC_REG_ARGS);
+		return -EINVAL;
+	}
+
+	/* Check that BTF function arguments match actual types that the
+	 * verifier sees.
+	 */
+	for (i = 0; i < nargs; i++) {
+		struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[i + 1];
+		const struct btf_type *t, *ref_t, *resolve_ret;
+		enum bpf_arg_type arg_type = ARG_DONTCARE;
+		u32 regno = i + 1, ref_id, type_size;
+		bool is_ret_buf_sz = false;
+		int kf_arg_type;
+
+		t = btf_type_skip_modifiers(btf, args[i].type, NULL);
+		if (btf_type_is_scalar(t)) {
+			if (reg->type != SCALAR_VALUE) {
+				verbose(env, "R%d is not a scalar\n", regno);
+				return -EINVAL;
+			}
+			if (is_kfunc_arg_ret_buf_size(btf, &args[i], reg, "rdonly_buf_size")) {
+					meta->r0_rdonly = true;
+					is_ret_buf_sz = true;
+			} else if (is_kfunc_arg_ret_buf_size(btf, &args[i], reg, "rdwr_buf_size")) {
+					is_ret_buf_sz = true;
+			}
+
+			if (is_ret_buf_sz) {
+				if (meta->r0_size) {
+					verbose(env, "2 or more rdonly/rdwr_buf_size parameters for kfunc");
+					return -EINVAL;
+				}
+
+				if (!tnum_is_const(reg->var_off)) {
+					verbose(env, "R%d is not a const\n", regno);
+					return -EINVAL;
+				}
+
+				meta->r0_size = reg->var_off.value;
+				ret = mark_chain_precision(env, regno);
+				if (ret)
+					return ret;
+			}
+			continue;
+		}
+
+		if (!btf_type_is_ptr(t)) {
+			verbose(env, "Unrecognized arg#%d type %s\n", i, btf_type_str(t));
+			return -EINVAL;
+		}
+
+		if (reg->ref_obj_id) {
+			if (is_kfunc_release(meta) && meta->ref_obj_id) {
+				verbose(env, "verifier internal error: more than one arg with ref_obj_id R%d %u %u\n",
+					regno, reg->ref_obj_id,
+					meta->ref_obj_id);
+				return -EFAULT;
+			}
+			meta->ref_obj_id = reg->ref_obj_id;
+			if (is_kfunc_release(meta))
+				meta->release_regno = regno;
+		}
+
+		ref_t = btf_type_skip_modifiers(btf, t->type, &ref_id);
+		ref_tname = btf_name_by_offset(btf, ref_t->name_off);
+
+		kf_arg_type = get_kfunc_ptr_arg_type(env, meta, t, ref_t, ref_tname, args, i, nargs);
+		if (kf_arg_type < 0)
+			return kf_arg_type;
+
+		switch (kf_arg_type) {
+		case KF_ARG_PTR_TO_BTF_ID:
+			if (is_kfunc_trusted_args(meta) && !reg->ref_obj_id) {
+				verbose(env, "R%d must be referenced\n", regno);
+				return -EINVAL;
+			}
+			fallthrough;
+		case KF_ARG_PTR_TO_CTX:
+			/* Trusted arguments have the same offset checks as release arguments */
+			arg_type |= OBJ_RELEASE;
+			break;
+		case KF_ARG_PTR_TO_KPTR_STRONG:
+		case KF_ARG_PTR_TO_DYNPTR:
+		case KF_ARG_PTR_TO_MEM:
+		case KF_ARG_PTR_TO_MEM_SIZE:
+			/* Trusted by default */
+			break;
+		default:
+			WARN_ON_ONCE(1);
+			return -EFAULT;
+		}
+
+		if (is_kfunc_release(meta) && reg->ref_obj_id)
+			arg_type |= OBJ_RELEASE;
+		ret = check_func_arg_reg_off(env, reg, regno, arg_type);
+		if (ret < 0)
+			return ret;
+
+		switch (kf_arg_type) {
+		case KF_ARG_PTR_TO_CTX:
+			if (reg->type != PTR_TO_CTX) {
+				verbose(env, "arg#%d expected pointer to ctx, but got %s\n", i, btf_type_str(t));
+				return -EINVAL;
+			}
+			break;
+		case KF_ARG_PTR_TO_BTF_ID:
+			/* Only base_type is checked, further checks are done here */
+			if (reg->type != PTR_TO_BTF_ID &&
+			    (!reg2btf_ids[base_type(reg->type)] || type_flag(reg->type))) {
+				verbose(env, "arg#%d expected pointer to btf or socket\n", i);
+				return -EINVAL;
+			}
+			ret = process_kf_arg_ptr_to_btf_id(env, reg, ref_t, ref_tname, ref_id, meta, i);
+			if (ret < 0)
+				return ret;
+			break;
+		case KF_ARG_PTR_TO_KPTR_STRONG:
+			if (reg->type != PTR_TO_MAP_VALUE) {
+				verbose(env, "arg#0 expected pointer to map value\n");
+				return -EINVAL;
+			}
+			ret = process_kf_arg_ptr_to_kptr_strong(env, reg, ref_t, ref_tname, meta, i);
+			if (ret < 0)
+				return ret;
+			break;
+		case KF_ARG_PTR_TO_DYNPTR:
+			if (reg->type != PTR_TO_STACK) {
+				verbose(env, "arg#%d expected pointer to stack\n", i);
+				return -EINVAL;
+			}
+
+			if (!is_dynptr_reg_valid_init(env, reg)) {
+				verbose(env, "arg#%d pointer type %s %s must be valid and initialized\n",
+					i, btf_type_str(ref_t), ref_tname);
+				return -EINVAL;
+			}
+
+			if (!is_dynptr_type_expected(env, reg, ARG_PTR_TO_DYNPTR | DYNPTR_TYPE_LOCAL)) {
+				verbose(env, "arg#%d pointer type %s %s points to unsupported dynamic pointer type\n",
+					i, btf_type_str(ref_t), ref_tname);
+				return -EINVAL;
+			}
+			break;
+		case KF_ARG_PTR_TO_MEM:
+			resolve_ret = btf_resolve_size(btf, ref_t, &type_size);
+			if (IS_ERR(resolve_ret)) {
+				verbose(env, "arg#%d reference type('%s %s') size cannot be determined: %ld\n",
+					i, btf_type_str(ref_t), ref_tname, PTR_ERR(resolve_ret));
+				return -EINVAL;
+			}
+			ret = check_mem_reg(env, reg, regno, type_size);
+			if (ret < 0)
+				return ret;
+			break;
+		case KF_ARG_PTR_TO_MEM_SIZE:
+			ret = check_kfunc_mem_size_reg(env, &regs[regno + 1], regno + 1);
+			if (ret < 0) {
+				verbose(env, "arg#%d arg#%d memory, len pair leads to invalid memory access\n", i, i + 1);
+				return ret;
+			}
+			/* Skip next '__sz' argument */
+			i++;
+			break;
+		}
+	}
+
+	if (is_kfunc_release(meta) && !meta->release_regno) {
+		verbose(env, "release kernel function %s expects refcounted PTR_TO_BTF_ID\n",
+			func_name);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			    int *insn_idx_p)
 {
 	const struct btf_type *t, *func, *func_proto, *ptr_type;
 	struct bpf_reg_state *regs = cur_regs(env);
-	struct bpf_kfunc_arg_meta meta = { 0 };
 	const char *func_name, *ptr_type_name;
+	struct bpf_kfunc_call_arg_meta meta;
 	u32 i, nargs, func_id, ptr_type_id;
 	int err, insn_idx = *insn_idx_p;
 	const struct btf_param *args;
 	struct btf *desc_btf;
 	u32 *kfunc_flags;
-	bool acq;
 
 	/* skip for now, but return error when we find this in fixup_kfunc_call */
 	if (!insn->imm)
@@ -7707,24 +8209,34 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			func_name);
 		return -EACCES;
 	}
-	if (*kfunc_flags & KF_DESTRUCTIVE && !capable(CAP_SYS_BOOT)) {
-		verbose(env, "destructive kfunc calls require CAP_SYS_BOOT capabilities\n");
+
+	/* Prepare kfunc call metadata */
+	memset(&meta, 0, sizeof(meta));
+	meta.btf = desc_btf;
+	meta.func_id = func_id;
+	meta.kfunc_flags = *kfunc_flags;
+	meta.func_proto = func_proto;
+	meta.func_name = func_name;
+
+	if (is_kfunc_destructive(&meta) && !capable(CAP_SYS_BOOT)) {
+		verbose(env, "destructive kfunc calls require CAP_SYS_BOOT capability\n");
 		return -EACCES;
 	}
 
-	acq = *kfunc_flags & KF_ACQUIRE;
-
-	meta.flags = *kfunc_flags;
+	if (is_kfunc_sleepable(&meta) && !env->prog->aux->sleepable) {
+		verbose(env, "program must be sleepable to call sleepable kfunc %s\n", func_name);
+		return -EACCES;
+	}
 
 	/* Check the arguments */
-	err = btf_check_kfunc_arg_match(env, desc_btf, func_id, regs, &meta);
+	err = check_kfunc_args(env, &meta);
 	if (err < 0)
 		return err;
 	/* In case of release function, we get register number of refcounted
-	 * PTR_TO_BTF_ID back from btf_check_kfunc_arg_match, do the release now
+	 * PTR_TO_BTF_ID in bpf_kfunc_arg_meta, do the release now.
 	 */
-	if (err) {
-		err = release_reference(env, regs[err].ref_obj_id);
+	if (meta.release_regno) {
+		err = release_reference(env, regs[meta.release_regno].ref_obj_id);
 		if (err) {
 			verbose(env, "kfunc %s#%d reference has not been acquired before\n",
 				func_name, func_id);
@@ -7738,7 +8250,7 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 	/* Check return type */
 	t = btf_type_skip_modifiers(desc_btf, func_proto->type, NULL);
 
-	if (acq && !btf_type_is_struct_ptr(desc_btf, t)) {
+	if (is_kfunc_acquire(&meta) && !btf_type_is_struct_ptr(meta.btf, t)) {
 		verbose(env, "acquire kernel function does not return PTR_TO_BTF_ID\n");
 		return -EINVAL;
 	}
@@ -7777,20 +8289,23 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			regs[BPF_REG_0].type = PTR_TO_BTF_ID;
 			regs[BPF_REG_0].btf_id = ptr_type_id;
 		}
-		if (*kfunc_flags & KF_RET_NULL) {
+		if (is_kfunc_ret_null(&meta)) {
 			regs[BPF_REG_0].type |= PTR_MAYBE_NULL;
 			/* For mark_ptr_or_null_reg, see 93c230e3f5bd6 */
 			regs[BPF_REG_0].id = ++env->id_gen;
 		}
 		mark_btf_func_reg_size(env, BPF_REG_0, sizeof(void *));
-		if (acq) {
+		if (is_kfunc_acquire(&meta)) {
 			int id = acquire_reference_state(env, insn_idx);
 
 			if (id < 0)
 				return id;
-			regs[BPF_REG_0].id = id;
+			if (is_kfunc_ret_null(&meta))
+				regs[BPF_REG_0].id = id;
 			regs[BPF_REG_0].ref_obj_id = id;
 		}
+		if (reg_may_point_to_spin_lock(&regs[BPF_REG_0]) && !regs[BPF_REG_0].id)
+			regs[BPF_REG_0].id = ++env->id_gen;
 	} /* else { add_kfunc_call() ensures it is btf_type_is_void(t) } */
 
 	nargs = btf_type_vlen(func_proto);
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c b/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c
index c210657d4d0a..55d641c1f126 100644
--- a/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c
@@ -22,7 +22,7 @@ static struct {
 	 "arg#0 pointer type STRUCT bpf_dynptr_kern points to unsupported dynamic pointer type", 0},
 	{"not_valid_dynptr",
 	 "arg#0 pointer type STRUCT bpf_dynptr_kern must be valid and initialized", 0},
-	{"not_ptr_to_stack", "arg#0 pointer type STRUCT bpf_dynptr_kern not to stack", 0},
+	{"not_ptr_to_stack", "arg#0 expected pointer to stack", 0},
 	{"dynptr_data_null", NULL, -EBADMSG},
 };
 
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
index e1a937277b54..e349d85f7717 100644
--- a/tools/testing/selftests/bpf/verifier/calls.c
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -109,7 +109,7 @@
 	},
 	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
 	.result = REJECT,
-	.errstr = "arg#0 pointer type STRUCT prog_test_ref_kfunc must point",
+	.errstr = "arg#0 expected pointer to btf or socket",
 	.fixup_kfunc_btf_id = {
 		{ "bpf_kfunc_call_test_acquire", 3 },
 		{ "bpf_kfunc_call_test_release", 5 },
@@ -181,7 +181,7 @@
 	},
 	.result_unpriv = REJECT,
 	.result = REJECT,
-	.errstr = "negative offset ptr_ ptr R1 off=-4 disallowed",
+	.errstr = "R1 must have zero offset when passed to release func",
 },
 {
 	"calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset",
diff --git a/tools/testing/selftests/bpf/verifier/ref_tracking.c b/tools/testing/selftests/bpf/verifier/ref_tracking.c
index f18ce867271f..4784471b0b7f 100644
--- a/tools/testing/selftests/bpf/verifier/ref_tracking.c
+++ b/tools/testing/selftests/bpf/verifier/ref_tracking.c
@@ -142,7 +142,7 @@
 	.kfunc = "bpf",
 	.expected_attach_type = BPF_LSM_MAC,
 	.flags = BPF_F_SLEEPABLE,
-	.errstr = "arg#0 pointer type STRUCT bpf_key must point to scalar, or struct with scalar",
+	.errstr = "arg#0 expected pointer to btf or socket",
 	.fixup_kfunc_btf_id = {
 		{ "bpf_lookup_user_key", 2 },
 		{ "bpf_key_put", 4 },
@@ -163,7 +163,7 @@
 	.kfunc = "bpf",
 	.expected_attach_type = BPF_LSM_MAC,
 	.flags = BPF_F_SLEEPABLE,
-	.errstr = "arg#0 pointer type STRUCT bpf_key must point to scalar, or struct with scalar",
+	.errstr = "arg#0 expected pointer to btf or socket",
 	.fixup_kfunc_btf_id = {
 		{ "bpf_lookup_system_key", 1 },
 		{ "bpf_key_put", 3 },
-- 
2.38.1

[PATCH bpf-next v3 16/24] bpf: Drop kfunc bits from btf_check_func_arg_match

[Kumar Kartikeya Dwivedi]

Remove all kfunc related bits now from btf_check_func_arg_match, as
users have been converted away to refactored kfunc argument handling.

This is split into a separate commit to aid review, in order to compare
what has been preserved from the removed bits easily instead of mixing
removed hunks with previous patch.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h          |  11 --
 include/linux/bpf_verifier.h |   2 -
 kernel/bpf/btf.c             | 364 +----------------------------------
 kernel/bpf/verifier.c        |   4 +-
 4 files changed, 10 insertions(+), 371 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 489f73f19307..f3a109a8d4fb 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -2098,22 +2098,11 @@ int btf_distill_func_proto(struct bpf_verifier_log *log,
 			   const char *func_name,
 			   struct btf_func_model *m);
 
-struct bpf_kfunc_arg_meta {
-	u64 r0_size;
-	bool r0_rdonly;
-	int ref_obj_id;
-	u32 flags;
-};
-
 struct bpf_reg_state;
 int btf_check_subprog_arg_match(struct bpf_verifier_env *env, int subprog,
 				struct bpf_reg_state *regs);
 int btf_check_subprog_call(struct bpf_verifier_env *env, int subprog,
 			   struct bpf_reg_state *regs);
-int btf_check_kfunc_arg_match(struct bpf_verifier_env *env,
-			      const struct btf *btf, u32 func_id,
-			      struct bpf_reg_state *regs,
-			      struct bpf_kfunc_arg_meta *meta);
 int btf_prepare_func_args(struct bpf_verifier_env *env, int subprog,
 			  struct bpf_reg_state *reg);
 int btf_check_type_match(struct bpf_verifier_log *log, const struct bpf_prog *prog,
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index bb71c59f21f6..8dad74432677 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -590,8 +590,6 @@ int check_ptr_off_reg(struct bpf_verifier_env *env,
 int check_func_arg_reg_off(struct bpf_verifier_env *env,
 			   const struct bpf_reg_state *reg, int regno,
 			   enum bpf_arg_type arg_type);
-int check_kfunc_mem_size_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
-			     u32 regno);
 int check_mem_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
 		   u32 regno, u32 mem_size);
 bool is_dynptr_reg_valid_init(struct bpf_verifier_env *env,
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index b63e0bb968f2..d766c4c269c3 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6588,122 +6588,19 @@ int btf_check_type_match(struct bpf_verifier_log *log, const struct bpf_prog *pr
 	return btf_check_func_type_match(log, btf1, t1, btf2, t2);
 }
 
-static u32 *reg2btf_ids[__BPF_REG_TYPE_MAX] = {
-#ifdef CONFIG_NET
-	[PTR_TO_SOCKET] = &btf_sock_ids[BTF_SOCK_TYPE_SOCK],
-	[PTR_TO_SOCK_COMMON] = &btf_sock_ids[BTF_SOCK_TYPE_SOCK_COMMON],
-	[PTR_TO_TCP_SOCK] = &btf_sock_ids[BTF_SOCK_TYPE_TCP],
-#endif
-};
-
-/* Returns true if struct is composed of scalars, 4 levels of nesting allowed */
-static bool __btf_type_is_scalar_struct(struct bpf_verifier_log *log,
-					const struct btf *btf,
-					const struct btf_type *t, int rec)
-{
-	const struct btf_type *member_type;
-	const struct btf_member *member;
-	u32 i;
-
-	if (!btf_type_is_struct(t))
-		return false;
-
-	for_each_member(i, t, member) {
-		const struct btf_array *array;
-
-		member_type = btf_type_skip_modifiers(btf, member->type, NULL);
-		if (btf_type_is_struct(member_type)) {
-			if (rec >= 3) {
-				bpf_log(log, "max struct nesting depth exceeded\n");
-				return false;
-			}
-			if (!__btf_type_is_scalar_struct(log, btf, member_type, rec + 1))
-				return false;
-			continue;
-		}
-		if (btf_type_is_array(member_type)) {
-			array = btf_type_array(member_type);
-			if (!array->nelems)
-				return false;
-			member_type = btf_type_skip_modifiers(btf, array->type, NULL);
-			if (!btf_type_is_scalar(member_type))
-				return false;
-			continue;
-		}
-		if (!btf_type_is_scalar(member_type))
-			return false;
-	}
-	return true;
-}
-
-static bool is_kfunc_arg_mem_size(const struct btf *btf,
-				  const struct btf_param *arg,
-				  const struct bpf_reg_state *reg)
-{
-	int len, sfx_len = sizeof("__sz") - 1;
-	const struct btf_type *t;
-	const char *param_name;
-
-	t = btf_type_skip_modifiers(btf, arg->type, NULL);
-	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
-		return false;
-
-	/* In the future, this can be ported to use BTF tagging */
-	param_name = btf_name_by_offset(btf, arg->name_off);
-	if (str_is_empty(param_name))
-		return false;
-	len = strlen(param_name);
-	if (len < sfx_len)
-		return false;
-	param_name += len - sfx_len;
-	if (strncmp(param_name, "__sz", sfx_len))
-		return false;
-
-	return true;
-}
-
-static bool btf_is_kfunc_arg_mem_size(const struct btf *btf,
-				      const struct btf_param *arg,
-				      const struct bpf_reg_state *reg,
-				      const char *name)
-{
-	int len, target_len = strlen(name);
-	const struct btf_type *t;
-	const char *param_name;
-
-	t = btf_type_skip_modifiers(btf, arg->type, NULL);
-	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
-		return false;
-
-	param_name = btf_name_by_offset(btf, arg->name_off);
-	if (str_is_empty(param_name))
-		return false;
-	len = strlen(param_name);
-	if (len != target_len)
-		return false;
-	if (strcmp(param_name, name))
-		return false;
-
-	return true;
-}
-
 static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 				    const struct btf *btf, u32 func_id,
 				    struct bpf_reg_state *regs,
 				    bool ptr_to_mem_ok,
-				    struct bpf_kfunc_arg_meta *kfunc_meta,
 				    bool processing_call)
 {
 	enum bpf_prog_type prog_type = resolve_prog_type(env->prog);
-	bool rel = false, kptr_get = false, trusted_args = false;
-	bool sleepable = false;
 	struct bpf_verifier_log *log = &env->log;
-	u32 i, nargs, ref_id, ref_obj_id = 0;
-	bool is_kfunc = btf_is_kernel(btf);
 	const char *func_name, *ref_tname;
 	const struct btf_type *t, *ref_t;
 	const struct btf_param *args;
-	int ref_regno = 0, ret;
+	u32 i, nargs, ref_id;
+	int ret;
 
 	t = btf_type_by_id(btf, func_id);
 	if (!t || !btf_type_is_func(t)) {
@@ -6729,14 +6626,6 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 		return -EINVAL;
 	}
 
-	if (is_kfunc && kfunc_meta) {
-		/* Only kfunc can be release func */
-		rel = kfunc_meta->flags & KF_RELEASE;
-		kptr_get = kfunc_meta->flags & KF_KPTR_GET;
-		trusted_args = kfunc_meta->flags & KF_TRUSTED_ARGS;
-		sleepable = kfunc_meta->flags & KF_SLEEPABLE;
-	}
-
 	/* check that BTF function arguments match actual types that the
 	 * verifier sees.
 	 */
@@ -6744,42 +6633,9 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 		enum bpf_arg_type arg_type = ARG_DONTCARE;
 		u32 regno = i + 1;
 		struct bpf_reg_state *reg = &regs[regno];
-		bool obj_ptr = false;
 
 		t = btf_type_skip_modifiers(btf, args[i].type, NULL);
 		if (btf_type_is_scalar(t)) {
-			if (is_kfunc && kfunc_meta) {
-				bool is_buf_size = false;
-
-				/* check for any const scalar parameter of name "rdonly_buf_size"
-				 * or "rdwr_buf_size"
-				 */
-				if (btf_is_kfunc_arg_mem_size(btf, &args[i], reg,
-							      "rdonly_buf_size")) {
-					kfunc_meta->r0_rdonly = true;
-					is_buf_size = true;
-				} else if (btf_is_kfunc_arg_mem_size(btf, &args[i], reg,
-								     "rdwr_buf_size"))
-					is_buf_size = true;
-
-				if (is_buf_size) {
-					if (kfunc_meta->r0_size) {
-						bpf_log(log, "2 or more rdonly/rdwr_buf_size parameters for kfunc");
-						return -EINVAL;
-					}
-
-					if (!tnum_is_const(reg->var_off)) {
-						bpf_log(log, "R%d is not a const\n", regno);
-						return -EINVAL;
-					}
-
-					kfunc_meta->r0_size = reg->var_off.value;
-					ret = mark_chain_precision(env, regno);
-					if (ret)
-						return ret;
-				}
-			}
-
 			if (reg->type == SCALAR_VALUE)
 				continue;
 			bpf_log(log, "R%d is not a scalar\n", regno);
@@ -6792,88 +6648,14 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 			return -EINVAL;
 		}
 
-		/* These register types have special constraints wrt ref_obj_id
-		 * and offset checks. The rest of trusted args don't.
-		 */
-		obj_ptr = reg->type == PTR_TO_CTX || reg->type == PTR_TO_BTF_ID ||
-			  reg2btf_ids[base_type(reg->type)];
-
-		/* Check if argument must be a referenced pointer, args + i has
-		 * been verified to be a pointer (after skipping modifiers).
-		 * PTR_TO_CTX is ok without having non-zero ref_obj_id.
-		 */
-		if (is_kfunc && trusted_args && (obj_ptr && reg->type != PTR_TO_CTX) && !reg->ref_obj_id) {
-			bpf_log(log, "R%d must be referenced\n", regno);
-			return -EINVAL;
-		}
-
 		ref_t = btf_type_skip_modifiers(btf, t->type, &ref_id);
 		ref_tname = btf_name_by_offset(btf, ref_t->name_off);
 
-		/* Trusted args have the same offset checks as release arguments */
-		if ((trusted_args && obj_ptr) || (rel && reg->ref_obj_id))
-			arg_type |= OBJ_RELEASE;
 		ret = check_func_arg_reg_off(env, reg, regno, arg_type);
 		if (ret < 0)
 			return ret;
 
-		if (is_kfunc && reg->ref_obj_id) {
-			/* Ensure only one argument is referenced PTR_TO_BTF_ID */
-			if (ref_obj_id) {
-				bpf_log(log, "verifier internal error: more than one arg with ref_obj_id R%d %u %u\n",
-					regno, reg->ref_obj_id, ref_obj_id);
-				return -EFAULT;
-			}
-			ref_regno = regno;
-			ref_obj_id = reg->ref_obj_id;
-		}
-
-		/* kptr_get is only true for kfunc */
-		if (i == 0 && kptr_get) {
-			struct btf_field *kptr_field;
-
-			if (reg->type != PTR_TO_MAP_VALUE) {
-				bpf_log(log, "arg#0 expected pointer to map value\n");
-				return -EINVAL;
-			}
-
-			/* check_func_arg_reg_off allows var_off for
-			 * PTR_TO_MAP_VALUE, but we need fixed offset to find
-			 * off_desc.
-			 */
-			if (!tnum_is_const(reg->var_off)) {
-				bpf_log(log, "arg#0 must have constant offset\n");
-				return -EINVAL;
-			}
-
-			kptr_field = btf_record_find(reg->map_ptr->record, reg->off + reg->var_off.value, BPF_KPTR);
-			if (!kptr_field || kptr_field->type != BPF_KPTR_REF) {
-				bpf_log(log, "arg#0 no referenced kptr at map value offset=%llu\n",
-					reg->off + reg->var_off.value);
-				return -EINVAL;
-			}
-
-			if (!btf_type_is_ptr(ref_t)) {
-				bpf_log(log, "arg#0 BTF type must be a double pointer\n");
-				return -EINVAL;
-			}
-
-			ref_t = btf_type_skip_modifiers(btf, ref_t->type, &ref_id);
-			ref_tname = btf_name_by_offset(btf, ref_t->name_off);
-
-			if (!btf_type_is_struct(ref_t)) {
-				bpf_log(log, "kernel function %s args#%d pointer type %s %s is not supported\n",
-					func_name, i, btf_type_str(ref_t), ref_tname);
-				return -EINVAL;
-			}
-			if (!btf_struct_ids_match(log, btf, ref_id, 0, kptr_field->kptr.btf,
-						  kptr_field->kptr.btf_id, true)) {
-				bpf_log(log, "kernel function %s args#%d expected pointer to %s %s\n",
-					func_name, i, btf_type_str(ref_t), ref_tname);
-				return -EINVAL;
-			}
-			/* rest of the arguments can be anything, like normal kfunc */
-		} else if (btf_get_prog_ctx_type(log, btf, t, prog_type, i)) {
+		if (btf_get_prog_ctx_type(log, btf, t, prog_type, i)) {
 			/* If function expects ctx type in BTF check that caller
 			 * is passing PTR_TO_CTX.
 			 */
@@ -6883,109 +6665,10 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 					i, btf_type_str(t));
 				return -EINVAL;
 			}
-		} else if (is_kfunc && (reg->type == PTR_TO_BTF_ID ||
-			   (reg2btf_ids[base_type(reg->type)] && !type_flag(reg->type)))) {
-			const struct btf_type *reg_ref_t;
-			const struct btf *reg_btf;
-			const char *reg_ref_tname;
-			u32 reg_ref_id;
-
-			if (!btf_type_is_struct(ref_t)) {
-				bpf_log(log, "kernel function %s args#%d pointer type %s %s is not supported\n",
-					func_name, i, btf_type_str(ref_t),
-					ref_tname);
-				return -EINVAL;
-			}
-
-			if (reg->type == PTR_TO_BTF_ID) {
-				reg_btf = reg->btf;
-				reg_ref_id = reg->btf_id;
-			} else {
-				reg_btf = btf_vmlinux;
-				reg_ref_id = *reg2btf_ids[base_type(reg->type)];
-			}
-
-			reg_ref_t = btf_type_skip_modifiers(reg_btf, reg_ref_id,
-							    &reg_ref_id);
-			reg_ref_tname = btf_name_by_offset(reg_btf,
-							   reg_ref_t->name_off);
-			if (!btf_struct_ids_match(log, reg_btf, reg_ref_id,
-						  reg->off, btf, ref_id,
-						  trusted_args || (rel && reg->ref_obj_id))) {
-				bpf_log(log, "kernel function %s args#%d expected pointer to %s %s but R%d has a pointer to %s %s\n",
-					func_name, i,
-					btf_type_str(ref_t), ref_tname,
-					regno, btf_type_str(reg_ref_t),
-					reg_ref_tname);
-				return -EINVAL;
-			}
 		} else if (ptr_to_mem_ok && processing_call) {
 			const struct btf_type *resolve_ret;
 			u32 type_size;
 
-			if (is_kfunc) {
-				bool arg_mem_size = i + 1 < nargs && is_kfunc_arg_mem_size(btf, &args[i + 1], &regs[regno + 1]);
-				bool arg_dynptr = btf_type_is_struct(ref_t) &&
-						  !strcmp(ref_tname,
-							  stringify_struct(bpf_dynptr_kern));
-
-				/* Permit pointer to mem, but only when argument
-				 * type is pointer to scalar, or struct composed
-				 * (recursively) of scalars.
-				 * When arg_mem_size is true, the pointer can be
-				 * void *.
-				 * Also permit initialized local dynamic pointers.
-				 */
-				if (!btf_type_is_scalar(ref_t) &&
-				    !__btf_type_is_scalar_struct(log, btf, ref_t, 0) &&
-				    !arg_dynptr &&
-				    (arg_mem_size ? !btf_type_is_void(ref_t) : 1)) {
-					bpf_log(log,
-						"arg#%d pointer type %s %s must point to %sscalar, or struct with scalar\n",
-						i, btf_type_str(ref_t), ref_tname, arg_mem_size ? "void, " : "");
-					return -EINVAL;
-				}
-
-				if (arg_dynptr) {
-					if (reg->type != PTR_TO_STACK) {
-						bpf_log(log, "arg#%d pointer type %s %s not to stack\n",
-							i, btf_type_str(ref_t),
-							ref_tname);
-						return -EINVAL;
-					}
-
-					if (!is_dynptr_reg_valid_init(env, reg)) {
-						bpf_log(log,
-							"arg#%d pointer type %s %s must be valid and initialized\n",
-							i, btf_type_str(ref_t),
-							ref_tname);
-						return -EINVAL;
-					}
-
-					if (!is_dynptr_type_expected(env, reg,
-							ARG_PTR_TO_DYNPTR | DYNPTR_TYPE_LOCAL)) {
-						bpf_log(log,
-							"arg#%d pointer type %s %s points to unsupported dynamic pointer type\n",
-							i, btf_type_str(ref_t),
-							ref_tname);
-						return -EINVAL;
-					}
-
-					continue;
-				}
-
-				/* Check for mem, len pair */
-				if (arg_mem_size) {
-					if (check_kfunc_mem_size_reg(env, &regs[regno + 1], regno + 1)) {
-						bpf_log(log, "arg#%d arg#%d memory, len pair leads to invalid memory access\n",
-							i, i + 1);
-						return -EINVAL;
-					}
-					i++;
-					continue;
-				}
-			}
-
 			resolve_ret = btf_resolve_size(btf, ref_t, &type_size);
 			if (IS_ERR(resolve_ret)) {
 				bpf_log(log,
@@ -6998,36 +6681,13 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 			if (check_mem_reg(env, reg, regno, type_size))
 				return -EINVAL;
 		} else {
-			bpf_log(log, "reg type unsupported for arg#%d %sfunction %s#%d\n", i,
-				is_kfunc ? "kernel " : "", func_name, func_id);
+			bpf_log(log, "reg type unsupported for arg#%d function %s#%d\n", i,
+				func_name, func_id);
 			return -EINVAL;
 		}
 	}
 
-	/* Either both are set, or neither */
-	WARN_ON_ONCE((ref_obj_id && !ref_regno) || (!ref_obj_id && ref_regno));
-	/* We already made sure ref_obj_id is set only for one argument. We do
-	 * allow (!rel && ref_obj_id), so that passing such referenced
-	 * PTR_TO_BTF_ID to other kfuncs works. Note that rel is only true when
-	 * is_kfunc is true.
-	 */
-	if (rel && !ref_obj_id) {
-		bpf_log(log, "release kernel function %s expects refcounted PTR_TO_BTF_ID\n",
-			func_name);
-		return -EINVAL;
-	}
-
-	if (sleepable && !env->prog->aux->sleepable) {
-		bpf_log(log, "kernel function %s is sleepable but the program is not\n",
-			func_name);
-		return -EINVAL;
-	}
-
-	if (kfunc_meta && ref_obj_id)
-		kfunc_meta->ref_obj_id = ref_obj_id;
-
-	/* returns argument register number > 0 in case of reference release kfunc */
-	return rel ? ref_regno : 0;
+	return 0;
 }
 
 /* Compare BTF of a function declaration with given bpf_reg_state.
@@ -7057,7 +6717,7 @@ int btf_check_subprog_arg_match(struct bpf_verifier_env *env, int subprog,
 		return -EINVAL;
 
 	is_global = prog->aux->func_info_aux[subprog].linkage == BTF_FUNC_GLOBAL;
-	err = btf_check_func_arg_match(env, btf, btf_id, regs, is_global, NULL, false);
+	err = btf_check_func_arg_match(env, btf, btf_id, regs, is_global, false);
 
 	/* Compiler optimizations can remove arguments from static functions
 	 * or mismatched type can be passed into a global function.
@@ -7100,7 +6760,7 @@ int btf_check_subprog_call(struct bpf_verifier_env *env, int subprog,
 		return -EINVAL;
 
 	is_global = prog->aux->func_info_aux[subprog].linkage == BTF_FUNC_GLOBAL;
-	err = btf_check_func_arg_match(env, btf, btf_id, regs, is_global, NULL, true);
+	err = btf_check_func_arg_match(env, btf, btf_id, regs, is_global, true);
 
 	/* Compiler optimizations can remove arguments from static functions
 	 * or mismatched type can be passed into a global function.
@@ -7111,14 +6771,6 @@ int btf_check_subprog_call(struct bpf_verifier_env *env, int subprog,
 	return err;
 }
 
-int btf_check_kfunc_arg_match(struct bpf_verifier_env *env,
-			      const struct btf *btf, u32 func_id,
-			      struct bpf_reg_state *regs,
-			      struct bpf_kfunc_arg_meta *meta)
-{
-	return btf_check_func_arg_match(env, btf, func_id, regs, true, meta, true);
-}
-
 /* Convert BTF of a function into bpf_reg_state if possible
  * Returns:
  * EFAULT - there is a verifier bug. Abort verification.
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 52e69befb522..f2a8adf5cf8e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5378,8 +5378,8 @@ int check_mem_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
 	return err;
 }
 
-int check_kfunc_mem_size_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
-			     u32 regno)
+static int check_kfunc_mem_size_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
+				    u32 regno)
 {
 	struct bpf_reg_state *mem_reg = &cur_regs(env)[regno - 1];
 	bool may_be_null = type_may_be_null(mem_reg->type);
-- 
2.38.1

[PATCH bpf-next v3 17/24] bpf: Support constant scalar arguments for kfuncs

[Kumar Kartikeya Dwivedi]

Allow passing known constant scalars as arguments to kfuncs that do not
represent a size parameter. This makes the search pruning optimization
of verifier more conservative for such kfunc calls, and each
non-distinct argument is considered unequivalent.

We will use this support to then expose a global bpf_kptr_alloc function
where it takes the local type ID in program BTF, and returns a
PTR_TO_BTF_ID to the local type. These will be called local kptrs, and
allows programs to allocate their own objects.

However, this is still not completely safe, as mark_chain_precision
logic is buggy without more work when the constant argument is not a
size, but still needs precise marker propagation for pruning checks.
Next patch will fix this problem.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 Documentation/bpf/kfuncs.rst | 30 ++++++++++++++++++
 kernel/bpf/verifier.c        | 59 +++++++++++++++++++++++++++---------
 2 files changed, 75 insertions(+), 14 deletions(-)

diff --git a/Documentation/bpf/kfuncs.rst b/Documentation/bpf/kfuncs.rst
index 0f858156371d..08f9a968d06d 100644
--- a/Documentation/bpf/kfuncs.rst
+++ b/Documentation/bpf/kfuncs.rst
@@ -72,6 +72,36 @@ argument as its size. By default, without __sz annotation, the size of the type
 of the pointer is used. Without __sz annotation, a kfunc cannot accept a void
 pointer.
 
+2.2.1 __k Annotation
+--------------------
+
+This annotation is only understood for scalar arguments, where it indicates that
+the verifier must check the scalar argument to be a known constant, which does
+not indicate a size parameter. This distinction is important, as when the scalar
+argument does not represent a size parameter, verifier is more conservative in
+state search pruning and does not consider two arguments equivalent for safety
+purposes if the already verified value was within range of the new one.
+
+This assumption holds well for sizes (as memory accessed within smaller bounds
+in old verified state will also work for bigger bounds in current to be explored
+state), but not for other constant arguments where each carries a distinct
+semantic effect.
+
+An example is given below::
+
+        void *bpf_mem_alloc(u32 local_type_id__k)
+        {
+        ...
+        }
+
+Here, bpf_mem_alloc uses local_type_id argument to find out the size of that
+type ID in program's BTF and return a sized pointer to it. Each type ID will
+have a distinct size, hence it is crucial to treat each such call as distinct
+when values don't match.
+
+Hence, whenever a constant scalar argument is accepted by a kfunc which is not a
+size parameter, __k suffix must be used.
+
 .. _BPF_kfunc_nodef:
 
 2.3 Using an existing kernel function
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index f2a8adf5cf8e..b92725f54496 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7686,6 +7686,10 @@ struct bpf_kfunc_call_arg_meta {
 	u8 release_regno;
 	bool r0_rdonly;
 	u64 r0_size;
+	struct {
+		u64 value;
+		bool found;
+	} arg_constant;
 };
 
 static bool is_kfunc_acquire(struct bpf_kfunc_call_arg_meta *meta)
@@ -7723,30 +7727,40 @@ static bool is_kfunc_arg_kptr_get(struct bpf_kfunc_call_arg_meta *meta, int arg)
 	return arg == 0 && (meta->kfunc_flags & KF_KPTR_GET);
 }
 
-static bool is_kfunc_arg_mem_size(const struct btf *btf,
-				  const struct btf_param *arg,
-				  const struct bpf_reg_state *reg)
+static bool __kfunc_param_match_suffix(const struct btf *btf,
+				       const struct btf_param *arg,
+				       const char *suffix)
 {
-	int len, sfx_len = sizeof("__sz") - 1;
-	const struct btf_type *t;
+	int suffix_len = strlen(suffix), len;
 	const char *param_name;
 
-	t = btf_type_skip_modifiers(btf, arg->type, NULL);
-	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
-		return false;
-
 	/* In the future, this can be ported to use BTF tagging */
 	param_name = btf_name_by_offset(btf, arg->name_off);
 	if (str_is_empty(param_name))
 		return false;
 	len = strlen(param_name);
-	if (len < sfx_len)
+	if (len < suffix_len)
 		return false;
-	param_name += len - sfx_len;
-	if (strncmp(param_name, "__sz", sfx_len))
+	param_name += len - suffix_len;
+	return !strncmp(param_name, suffix, suffix_len);
+}
+
+static bool is_kfunc_arg_mem_size(const struct btf *btf,
+				  const struct btf_param *arg,
+				  const struct bpf_reg_state *reg)
+{
+	const struct btf_type *t;
+
+	t = btf_type_skip_modifiers(btf, arg->type, NULL);
+	if (!btf_type_is_scalar(t) || reg->type != SCALAR_VALUE)
 		return false;
 
-	return true;
+	return __kfunc_param_match_suffix(btf, arg, "__sz");
+}
+
+static bool is_kfunc_arg_sfx_constant(const struct btf *btf, const struct btf_param *arg)
+{
+	return __kfunc_param_match_suffix(btf, arg, "__k");
 }
 
 static bool is_kfunc_arg_ret_buf_size(const struct btf *btf,
@@ -8022,7 +8036,24 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 				verbose(env, "R%d is not a scalar\n", regno);
 				return -EINVAL;
 			}
-			if (is_kfunc_arg_ret_buf_size(btf, &args[i], reg, "rdonly_buf_size")) {
+			if (is_kfunc_arg_sfx_constant(meta->btf, &args[i])) {
+				/* kfunc is already bpf_capable() only, no need
+				 * to check it here.
+				 */
+				if (meta->arg_constant.found) {
+					verbose(env, "verifier internal error: only one constant argument permitted\n");
+					return -EFAULT;
+				}
+				if (!tnum_is_const(reg->var_off)) {
+					verbose(env, "R%d must be a known constant\n", regno);
+					return -EINVAL;
+				}
+				ret = mark_chain_precision(env, regno);
+				if (ret < 0)
+					return ret;
+				meta->arg_constant.found = true;
+				meta->arg_constant.value = reg->var_off.value;
+			} else if (is_kfunc_arg_ret_buf_size(btf, &args[i], reg, "rdonly_buf_size")) {
 					meta->r0_rdonly = true;
 					is_ret_buf_sz = true;
 			} else if (is_kfunc_arg_ret_buf_size(btf, &args[i], reg, "rdwr_buf_size")) {
-- 
2.38.1

[PATCH bpf-next v3 18/24] bpf: Teach verifier about non-size constant arguments

[Kumar Kartikeya Dwivedi]

Currently, the verifier has support for various arguments that either
describe the size of the memory being passed in to a helper, or describe
the size of the memory being returned. When a constant is passed in like
this, it is assumed for the purposes of precision tracking that if the
value in the already explored safe state is within the value in current
state, it would fine to prune the search.

While this holds well for size arguments, arguments where each value may
denote a distinct meaning and needs to be verified separately needs more
work. Search can only be pruned if both are constant values and both are
equal. In all other cases, it would be incorrect to treat those two
precise registers as equivalent if the new value satisfies the old one
(i.e. old <= cur).

Hence, make the register precision marker tri-state. There are now three
values that reg->precise takes: NOT_PRECISE, PRECISE, EXACT.

Both PRECISE and EXACT are 'true' values. EXACT affects how regsafe
decides whether both registers are equivalent for the purposes of
verifier state equivalence. When it sees that one register has
reg->precise == EXACT, unless both are absolute, it will return false.
When both are, it returns true only when both are const and both have
the same value. Otherwise, for PRECISE case it falls back to the default
check that is present now (i.e. thinking that we're talking about
sizes).

This is required as a future patch introduces a BPF memory allocator
interface, where we take the program BTF's type ID as an argument. Each
distinct type ID may result in the returned pointer obtaining a
different size, hence precision tracking is needed, and pruning cannot
just happen when the old value is within the current value. It must only
happen when the type ID is equal. The type ID will always correspond to
prog->aux->btf hence actual type match is not required.

Finally, change mark_chain_precision precision argument to EXACT for
kfuncs constant non-size scalar arguments (tagged with __k suffix).

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf_verifier.h |  10 ++--
 kernel/bpf/verifier.c        | 101 ++++++++++++++++++++++-------------
 2 files changed, 70 insertions(+), 41 deletions(-)

diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 8dad74432677..2614892ca063 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -43,6 +43,12 @@ enum bpf_reg_liveness {
 	REG_LIVE_DONE = 0x8, /* liveness won't be updating this register anymore */
 };
 
+enum bpf_reg_precise {
+	NOT_PRECISE,
+	PRECISE,
+	EXACT,
+};
+
 struct bpf_reg_state {
 	/* Ordering of fields matters.  See states_equal() */
 	enum bpf_reg_type type;
@@ -180,7 +186,7 @@ struct bpf_reg_state {
 	s32 subreg_def;
 	enum bpf_reg_liveness live;
 	/* if (!precise && SCALAR_VALUE) min/max/tnum don't affect safety */
-	bool precise;
+	enum bpf_reg_precise precise;
 };
 
 enum bpf_stack_slot_type {
@@ -624,8 +630,6 @@ int bpf_check_attach_target(struct bpf_verifier_log *log,
 			    struct bpf_attach_target_info *tgt_info);
 void bpf_free_kfunc_btf_tab(struct bpf_kfunc_btf_tab *tab);
 
-int mark_chain_precision(struct bpf_verifier_env *env, int regno);
-
 #define BPF_BASE_TYPE_MASK	GENMASK(BPF_BASE_TYPE_BITS - 1, 0)
 
 /* extract base type from bpf_{arg, return, reg}_type. */
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index b92725f54496..074070e7a105 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -855,7 +855,7 @@ static void print_verifier_state(struct bpf_verifier_env *env,
 		print_liveness(env, reg->live);
 		verbose(env, "=");
 		if (t == SCALAR_VALUE && reg->precise)
-			verbose(env, "P");
+			verbose(env, reg->precise == EXACT ? "E" : "P");
 		if ((t == SCALAR_VALUE || t == PTR_TO_STACK) &&
 		    tnum_is_const(reg->var_off)) {
 			/* reg->off should be 0 for SCALAR_VALUE */
@@ -952,7 +952,7 @@ static void print_verifier_state(struct bpf_verifier_env *env,
 			t = reg->type;
 			verbose(env, "=%s", t == SCALAR_VALUE ? "" : reg_type_str(env, t));
 			if (t == SCALAR_VALUE && reg->precise)
-				verbose(env, "P");
+				verbose(env, reg->precise == EXACT ? "E" : "P");
 			if (t == SCALAR_VALUE && tnum_is_const(reg->var_off))
 				verbose(env, "%lld", reg->var_off.value + reg->off);
 		} else {
@@ -1686,7 +1686,17 @@ static void __mark_reg_unknown(const struct bpf_verifier_env *env,
 	reg->type = SCALAR_VALUE;
 	reg->var_off = tnum_unknown;
 	reg->frameno = 0;
-	reg->precise = env->subprog_cnt > 1 || !env->bpf_capable;
+	/* Helpers requiring EXACT for constant arguments cannot be called from
+	 * programs without CAP_BPF. This is because we don't propagate
+	 * precision markers for when CAP_BPF is missing. If we allowed calling
+	 * such heleprs in those programs, the default would have to be EXACT
+	 * for them, which would be too aggresive.
+	 *
+	 * We still propagate EXACT when subprog_cnt > 1, hence those cases
+	 * would still override the default PRECISE value when we propagate the
+	 * precision markers.
+	 */
+	reg->precise = (env->subprog_cnt > 1 || !env->bpf_capable) ? PRECISE : NOT_PRECISE;
 	__mark_reg_unbounded(reg);
 }
 
@@ -2736,7 +2746,8 @@ static int backtrack_insn(struct bpf_verifier_env *env, int idx,
  * For now backtracking falls back into conservative marking.
  */
 static void mark_all_scalars_precise(struct bpf_verifier_env *env,
-				     struct bpf_verifier_state *st)
+				     struct bpf_verifier_state *st,
+				     enum bpf_reg_precise precise)
 {
 	struct bpf_func_state *func;
 	struct bpf_reg_state *reg;
@@ -2752,7 +2763,7 @@ static void mark_all_scalars_precise(struct bpf_verifier_env *env,
 				reg = &func->regs[j];
 				if (reg->type != SCALAR_VALUE)
 					continue;
-				reg->precise = true;
+				reg->precise = precise;
 			}
 			for (j = 0; j < func->allocated_stack / BPF_REG_SIZE; j++) {
 				if (!is_spilled_reg(&func->stack[j]))
@@ -2760,13 +2771,13 @@ static void mark_all_scalars_precise(struct bpf_verifier_env *env,
 				reg = &func->stack[j].spilled_ptr;
 				if (reg->type != SCALAR_VALUE)
 					continue;
-				reg->precise = true;
+				reg->precise = precise;
 			}
 		}
 }
 
 static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
-				  int spi)
+				  int spi, enum bpf_reg_precise precise)
 {
 	struct bpf_verifier_state *st = env->cur_state;
 	int first_idx = st->first_insn_idx;
@@ -2793,7 +2804,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 			new_marks = true;
 		else
 			reg_mask = 0;
-		reg->precise = true;
+		reg->precise = precise;
 	}
 
 	while (spi >= 0) {
@@ -2810,7 +2821,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 			new_marks = true;
 		else
 			stack_mask = 0;
-		reg->precise = true;
+		reg->precise = precise;
 		break;
 	}
 
@@ -2832,7 +2843,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 				err = backtrack_insn(env, i, &reg_mask, &stack_mask);
 			}
 			if (err == -ENOTSUPP) {
-				mark_all_scalars_precise(env, st);
+				mark_all_scalars_precise(env, st, precise);
 				return 0;
 			} else if (err) {
 				return err;
@@ -2873,7 +2884,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 			}
 			if (!reg->precise)
 				new_marks = true;
-			reg->precise = true;
+			reg->precise = precise;
 		}
 
 		bitmap_from_u64(mask, stack_mask);
@@ -2892,7 +2903,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 				 * fp-8 and it's "unallocated" stack space.
 				 * In such case fallback to conservative.
 				 */
-				mark_all_scalars_precise(env, st);
+				mark_all_scalars_precise(env, st, precise);
 				return 0;
 			}
 
@@ -2907,7 +2918,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 			}
 			if (!reg->precise)
 				new_marks = true;
-			reg->precise = true;
+			reg->precise = precise;
 		}
 		if (env->log.level & BPF_LOG_LEVEL2) {
 			verbose(env, "parent %s regs=%x stack=%llx marks:",
@@ -2927,14 +2938,16 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
 	return 0;
 }
 
-int mark_chain_precision(struct bpf_verifier_env *env, int regno)
+static int mark_chain_precision(struct bpf_verifier_env *env, int regno,
+				enum bpf_reg_precise precise)
 {
-	return __mark_chain_precision(env, regno, -1);
+	return __mark_chain_precision(env, regno, -1, precise);
 }
 
-static int mark_chain_precision_stack(struct bpf_verifier_env *env, int spi)
+static int mark_chain_precision_stack(struct bpf_verifier_env *env, int spi,
+				      enum bpf_reg_precise precise)
 {
-	return __mark_chain_precision(env, -1, spi);
+	return __mark_chain_precision(env, -1, spi, precise);
 }
 
 static bool is_spillable_regtype(enum bpf_reg_type type)
@@ -3069,7 +3082,7 @@ static int check_stack_write_fixed_off(struct bpf_verifier_env *env,
 			 * Backtrack from here and mark all registers as precise
 			 * that contributed into 'reg' being a constant.
 			 */
-			err = mark_chain_precision(env, value_regno);
+			err = mark_chain_precision(env, value_regno, PRECISE);
 			if (err)
 				return err;
 		}
@@ -3110,7 +3123,7 @@ static int check_stack_write_fixed_off(struct bpf_verifier_env *env,
 		/* when we zero initialize stack slots mark them as such */
 		if (reg && register_is_null(reg)) {
 			/* backtracking doesn't work for STACK_ZERO yet. */
-			err = mark_chain_precision(env, value_regno);
+			err = mark_chain_precision(env, value_regno, PRECISE);
 			if (err)
 				return err;
 			type = STACK_ZERO;
@@ -3226,7 +3239,7 @@ static int check_stack_write_var_off(struct bpf_verifier_env *env,
 	}
 	if (zero_used) {
 		/* backtracking doesn't work for STACK_ZERO yet. */
-		err = mark_chain_precision(env, value_regno);
+		err = mark_chain_precision(env, value_regno, PRECISE);
 		if (err)
 			return err;
 	}
@@ -3275,7 +3288,7 @@ static void mark_reg_stack_read(struct bpf_verifier_env *env,
 		 * backtracking. Any register that contributed
 		 * to const 0 was marked precise before spill.
 		 */
-		state->regs[dst_regno].precise = true;
+		state->regs[dst_regno].precise = PRECISE;
 	} else {
 		/* have read misc data from the stack */
 		mark_reg_unknown(env, state->regs, dst_regno);
@@ -5342,7 +5355,7 @@ static int check_mem_size_reg(struct bpf_verifier_env *env,
 				      reg->umax_value,
 				      zero_size_allowed, meta);
 	if (!err)
-		err = mark_chain_precision(env, regno);
+		err = mark_chain_precision(env, regno, PRECISE);
 	return err;
 }
 
@@ -6150,7 +6163,7 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
 			return -EACCES;
 		}
 		meta->mem_size = reg->var_off.value;
-		err = mark_chain_precision(env, regno);
+		err = mark_chain_precision(env, regno, PRECISE);
 		if (err)
 			return err;
 		break;
@@ -7127,7 +7140,7 @@ record_func_key(struct bpf_verifier_env *env, struct bpf_call_arg_meta *meta,
 		return 0;
 	}
 
-	err = mark_chain_precision(env, BPF_REG_3);
+	err = mark_chain_precision(env, BPF_REG_3, PRECISE);
 	if (err)
 		return err;
 	if (bpf_map_key_unseen(aux))
@@ -7227,7 +7240,7 @@ static bool loop_flag_is_zero(struct bpf_verifier_env *env)
 	bool reg_is_null = register_is_null(reg);
 
 	if (reg_is_null)
-		mark_chain_precision(env, BPF_REG_4);
+		mark_chain_precision(env, BPF_REG_4, PRECISE);
 
 	return reg_is_null;
 }
@@ -8048,7 +8061,7 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 					verbose(env, "R%d must be a known constant\n", regno);
 					return -EINVAL;
 				}
-				ret = mark_chain_precision(env, regno);
+				ret = mark_chain_precision(env, regno, EXACT);
 				if (ret < 0)
 					return ret;
 				meta->arg_constant.found = true;
@@ -8072,7 +8085,7 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 				}
 
 				meta->r0_size = reg->var_off.value;
-				ret = mark_chain_precision(env, regno);
+				ret = mark_chain_precision(env, regno, PRECISE);
 				if (ret)
 					return ret;
 			}
@@ -9751,7 +9764,7 @@ static int adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 				 * This is legal, but we have to reverse our
 				 * src/dest handling in computing the range
 				 */
-				err = mark_chain_precision(env, insn->dst_reg);
+				err = mark_chain_precision(env, insn->dst_reg, PRECISE);
 				if (err)
 					return err;
 				return adjust_ptr_min_max_vals(env, insn,
@@ -9759,7 +9772,7 @@ static int adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 			}
 		} else if (ptr_reg) {
 			/* pointer += scalar */
-			err = mark_chain_precision(env, insn->src_reg);
+			err = mark_chain_precision(env, insn->src_reg, PRECISE);
 			if (err)
 				return err;
 			return adjust_ptr_min_max_vals(env, insn,
@@ -10755,10 +10768,10 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env,
 		 * above is_branch_taken() special cased the 0 comparison.
 		 */
 		if (!__is_pointer_value(false, dst_reg))
-			err = mark_chain_precision(env, insn->dst_reg);
+			err = mark_chain_precision(env, insn->dst_reg, PRECISE);
 		if (BPF_SRC(insn->code) == BPF_X && !err &&
 		    !__is_pointer_value(false, src_reg))
-			err = mark_chain_precision(env, insn->src_reg);
+			err = mark_chain_precision(env, insn->src_reg, PRECISE);
 		if (err)
 			return err;
 	}
@@ -12079,9 +12092,19 @@ static bool regsafe(struct bpf_verifier_env *env, struct bpf_reg_state *rold,
 		if (rcur->type == SCALAR_VALUE) {
 			if (!rold->precise && !rcur->precise)
 				return true;
-			/* new val must satisfy old val knowledge */
-			return range_within(rold, rcur) &&
-			       tnum_in(rold->var_off, rcur->var_off);
+			/* We can only determine safety when type of precision
+			 * needed is same. For EXACT, we need values to match
+			 * exactly, so simply return false as the memcmp above
+			 * failed already, otherwise current being within the
+			 * old value suffices.
+			 */
+			if (rold->precise == EXACT || rcur->precise == EXACT) {
+				return false;
+			} else {
+				/* new val must satisfy old val knowledge */
+				return range_within(rold, rcur) &&
+				       tnum_in(rold->var_off, rcur->var_off);
+			}
 		} else {
 			/* We're trying to use a pointer in place of a scalar.
 			 * Even if the scalar was unbounded, this could lead to
@@ -12410,8 +12433,9 @@ static int propagate_precision(struct bpf_verifier_env *env,
 		    !state_reg->precise)
 			continue;
 		if (env->log.level & BPF_LOG_LEVEL2)
-			verbose(env, "propagating r%d\n", i);
-		err = mark_chain_precision(env, i);
+			verbose(env, "propagating %sr%d\n",
+				state_reg->precise == EXACT ? "exact " : "", i);
+		err = mark_chain_precision(env, i, state_reg->precise);
 		if (err < 0)
 			return err;
 	}
@@ -12424,9 +12448,10 @@ static int propagate_precision(struct bpf_verifier_env *env,
 		    !state_reg->precise)
 			continue;
 		if (env->log.level & BPF_LOG_LEVEL2)
-			verbose(env, "propagating fp%d\n",
+			verbose(env, "propagating %sfp%d\n",
+				state_reg->precise == EXACT ? "exact " : "",
 				(-i - 1) * BPF_REG_SIZE);
-		err = mark_chain_precision_stack(env, i);
+		err = mark_chain_precision_stack(env, i, state_reg->precise);
 		if (err < 0)
 			return err;
 	}
-- 
2.38.1

[PATCH bpf-next v3 19/24] bpf: Introduce bpf_obj_new

[Kumar Kartikeya Dwivedi]

Introduce type safe memory allocator bpf_obj_new for BPF programs. The
kernel side kfunc is named bpf_obj_new_impl, as passing hidden arguments
to kfuncs still requires having them in prototype, unlike BPF helpers
which always take 5 arguments and have them checked using bpf_func_proto
in verifier, ignoring unset argument types.

Introduce __ign suffix to ignore a specific kfunc argument during type
checks, then use this to introduce support for passing type metadata to
the bpf_obj_new_impl kfunc.

The user passes BTF ID of the type it wants to allocates in program BTF,
the verifier then rewrites the first argument as the size of this type,
after performing some sanity checks (to ensure it exists and it is a
struct type).

The second argument is also fixed up and passed by the verifier. This is
the btf_struct_meta for the type being allocated. It would be needed
mostly for the offset array which is required for zero initializing
special fields while leaving the rest of storage in unitialized state.

It would also be needed in the next patch to perform proper destruction
of the object's special fields.

A convenience macro is included in the bpf_experimental.h header to hide
over the ugly details of the implementation, leading to user code
looking similar to a language level extension which allocates and
constructs fields of a user type.

struct bar {
	struct bpf_list_node node;
};

struct foo {
	struct bpf_spin_lock lock;
	struct bpf_list_head head __contains(bar, node);
};

void prog(void) {
	struct foo *f;

	f = bpf_obj_new(typeof(*f));
	if (!f)
		return;
	...
}

A key piece of this story is still missing, i.e. the free function,
which will come in the next patch.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h                           |  21 ++--
 include/linux/bpf_verifier.h                  |   2 +
 kernel/bpf/core.c                             |  14 +++
 kernel/bpf/helpers.c                          |  41 +++++--
 kernel/bpf/verifier.c                         | 107 ++++++++++++++++--
 .../testing/selftests/bpf/bpf_experimental.h  |  20 ++++
 6 files changed, 182 insertions(+), 23 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/bpf_experimental.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index f3a109a8d4fb..13dc7a638f07 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -53,6 +53,8 @@ struct cgroup;
 extern struct idr btf_idr;
 extern spinlock_t btf_idr_lock;
 extern struct kobject *btf_kobj;
+extern struct bpf_mem_alloc bpf_global_ma;
+extern bool bpf_global_ma_set;
 
 typedef u64 (*bpf_callback_t)(u64, u64, u64, u64, u64);
 typedef int (*bpf_iter_init_seq_priv_t)(void *private_data,
@@ -333,16 +335,19 @@ static inline bool btf_record_has_field(const struct btf_record *rec, enum btf_f
 	return rec->field_mask & type;
 }
 
-static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
+static inline void bpf_obj_init(const struct btf_field_offs *foffs, void *obj)
 {
-	if (!IS_ERR_OR_NULL(map->record)) {
-		struct btf_field *fields = map->record->fields;
-		u32 cnt = map->record->cnt;
-		int i;
+	int i;
 
-		for (i = 0; i < cnt; i++)
-			memset(dst + fields[i].offset, 0, btf_field_type_size(fields[i].type));
-	}
+	if (!foffs)
+		return;
+	for (i = 0; i < foffs->cnt; i++)
+		memset(obj + foffs->field_off[i], 0, foffs->field_sz[i]);
+}
+
+static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
+{
+	bpf_obj_init(map->field_offs, dst);
 }
 
 /* memcpy that is used with 8-byte aligned pointers, power-of-8 size and
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 2614892ca063..1e9c782e0974 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -426,6 +426,8 @@ struct bpf_insn_aux_data {
 		 */
 		struct bpf_loop_inline_state loop_inline_state;
 	};
+	u64 obj_new_size; /* remember the size of type passed to bpf_obj_new to rewrite R1 */
+	struct btf_struct_meta *kptr_struct_meta;
 	u64 map_key_state; /* constant (32 bit) key tracking for maps */
 	int ctx_field_size; /* the ctx field size for load insn, maybe 0 */
 	u32 seen; /* this insn was processed by the verifier at env->pass_cnt */
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index a0e762a2bf97..5f44998c07f6 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -34,6 +34,7 @@
 #include <linux/log2.h>
 #include <linux/bpf_verifier.h>
 #include <linux/nodemask.h>
+#include <linux/bpf_mem_alloc.h>
 
 #include <asm/barrier.h>
 #include <asm/unaligned.h>
@@ -60,6 +61,9 @@
 #define CTX	regs[BPF_REG_CTX]
 #define IMM	insn->imm
 
+struct bpf_mem_alloc bpf_global_ma;
+bool bpf_global_ma_set;
+
 /* No hurry in this branch
  *
  * Exported for the bpf jit load helper.
@@ -2746,6 +2750,16 @@ int __weak bpf_arch_text_invalidate(void *dst, size_t len)
 	return -ENOTSUPP;
 }
 
+static int __init bpf_global_ma_init(void)
+{
+	int ret;
+
+	ret = bpf_mem_alloc_init(&bpf_global_ma, 0, false);
+	bpf_global_ma_set = !ret;
+	return ret;
+}
+late_initcall(bpf_global_ma_init);
+
 DEFINE_STATIC_KEY_FALSE(bpf_stats_enabled_key);
 EXPORT_SYMBOL(bpf_stats_enabled_key);
 
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index e2441b70d3ed..b78eaf8ae554 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -19,6 +19,7 @@
 #include <linux/proc_ns.h>
 #include <linux/security.h>
 #include <linux/btf_ids.h>
+#include <linux/bpf_mem_alloc.h>
 
 #include "../../lib/kstrtox.h"
 
@@ -1731,8 +1732,11 @@ void bpf_list_head_free(const struct btf_field *field, void *list_head,
 
 		obj -= field->list_head.node_offset;
 		head = head->next;
-		/* TODO: Rework later */
-		kfree(obj);
+		/* The contained type can also have resources, including a
+		 * bpf_list_head which needs to be freed.
+		 */
+		bpf_obj_free_fields(field->list_head.value_rec, obj);
+		bpf_mem_free(&bpf_global_ma, obj);
 	}
 unlock:
 	INIT_LIST_HEAD(head);
@@ -1740,20 +1744,43 @@ void bpf_list_head_free(const struct btf_field *field, void *list_head,
 	local_irq_restore(flags);
 }
 
-BTF_SET8_START(tracing_btf_ids)
+__diag_push();
+__diag_ignore_all("-Wmissing-prototypes",
+		  "Global functions as their definitions will be in vmlinux BTF");
+
+void *bpf_obj_new_impl(u64 local_type_id__k, void *meta__ign)
+{
+	struct btf_struct_meta *meta = meta__ign;
+	u64 size = local_type_id__k;
+	void *p;
+
+	if (unlikely(!bpf_global_ma_set))
+		return NULL;
+	p = bpf_mem_alloc(&bpf_global_ma, size);
+	if (!p)
+		return NULL;
+	if (meta)
+		bpf_obj_init(meta->field_offs, p);
+	return p;
+}
+
+__diag_pop();
+
+BTF_SET8_START(generic_btf_ids)
 #ifdef CONFIG_KEXEC_CORE
 BTF_ID_FLAGS(func, crash_kexec, KF_DESTRUCTIVE)
 #endif
-BTF_SET8_END(tracing_btf_ids)
+BTF_ID_FLAGS(func, bpf_obj_new_impl, KF_ACQUIRE | KF_RET_NULL)
+BTF_SET8_END(generic_btf_ids)
 
-static const struct btf_kfunc_id_set tracing_kfunc_set = {
+static const struct btf_kfunc_id_set generic_kfunc_set = {
 	.owner = THIS_MODULE,
-	.set   = &tracing_btf_ids,
+	.set   = &generic_btf_ids,
 };
 
 static int __init kfunc_init(void)
 {
-	return register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &tracing_kfunc_set);
+	return register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &generic_kfunc_set);
 }
 
 late_initcall(kfunc_init);
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 074070e7a105..a04a98b23524 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7776,6 +7776,11 @@ static bool is_kfunc_arg_sfx_constant(const struct btf *btf, const struct btf_pa
 	return __kfunc_param_match_suffix(btf, arg, "__k");
 }
 
+static bool is_kfunc_arg_sfx_ignore(const struct btf *btf, const struct btf_param *arg)
+{
+	return __kfunc_param_match_suffix(btf, arg, "__ign");
+}
+
 static bool is_kfunc_arg_ret_buf_size(const struct btf *btf,
 				      const struct btf_param *arg,
 				      const struct bpf_reg_state *reg,
@@ -8044,6 +8049,10 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 		int kf_arg_type;
 
 		t = btf_type_skip_modifiers(btf, args[i].type, NULL);
+
+		if (is_kfunc_arg_sfx_ignore(btf, &args[i]))
+			continue;
+
 		if (btf_type_is_scalar(t)) {
 			if (reg->type != SCALAR_VALUE) {
 				verbose(env, "R%d is not a scalar\n", regno);
@@ -8221,6 +8230,17 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 	return 0;
 }
 
+enum special_kfunc_type {
+	KF_bpf_obj_new_impl,
+};
+
+BTF_SET_START(special_kfunc_set)
+BTF_ID(func, bpf_obj_new_impl)
+BTF_SET_END(special_kfunc_set)
+
+BTF_ID_LIST(special_kfunc_list)
+BTF_ID(func, bpf_obj_new_impl)
+
 static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			    int *insn_idx_p)
 {
@@ -8295,17 +8315,64 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 	t = btf_type_skip_modifiers(desc_btf, func_proto->type, NULL);
 
 	if (is_kfunc_acquire(&meta) && !btf_type_is_struct_ptr(meta.btf, t)) {
-		verbose(env, "acquire kernel function does not return PTR_TO_BTF_ID\n");
-		return -EINVAL;
+		/* Only exception is bpf_obj_new_impl */
+		if (meta.btf != btf_vmlinux || meta.func_id != special_kfunc_list[KF_bpf_obj_new_impl]) {
+			verbose(env, "acquire kernel function does not return PTR_TO_BTF_ID\n");
+			return -EINVAL;
+		}
 	}
 
 	if (btf_type_is_scalar(t)) {
 		mark_reg_unknown(env, regs, BPF_REG_0);
 		mark_btf_func_reg_size(env, BPF_REG_0, t->size);
 	} else if (btf_type_is_ptr(t)) {
-		ptr_type = btf_type_skip_modifiers(desc_btf, t->type,
-						   &ptr_type_id);
-		if (!btf_type_is_struct(ptr_type)) {
+		ptr_type = btf_type_skip_modifiers(desc_btf, t->type, &ptr_type_id);
+
+		if (meta.btf == btf_vmlinux && btf_id_set_contains(&special_kfunc_set, meta.func_id)) {
+			if (!btf_type_is_void(ptr_type)) {
+				verbose(env, "kernel function %s must have void * return type\n",
+					meta.func_name);
+				return -EINVAL;
+			}
+			if (meta.func_id == special_kfunc_list[KF_bpf_obj_new_impl]) {
+				const struct btf_type *ret_t;
+				struct btf *ret_btf;
+				u32 ret_btf_id;
+
+				if (((u64)(u32)meta.arg_constant.value) != meta.arg_constant.value) {
+					verbose(env, "local type ID argument must be in range [0, U32_MAX]\n");
+					return -EINVAL;
+				}
+
+				ret_btf = env->prog->aux->btf;
+				ret_btf_id = meta.arg_constant.value;
+
+				/* This may be NULL due to user not supplying a BTF */
+				if (!ret_btf) {
+					verbose(env, "bpf_obj_new requires prog BTF\n");
+					return -EINVAL;
+				}
+
+				mark_reg_known_zero(env, regs, BPF_REG_0);
+				regs[BPF_REG_0].type = PTR_TO_BTF_ID | MEM_TYPE_LOCAL;
+				regs[BPF_REG_0].btf = ret_btf;
+				regs[BPF_REG_0].btf_id = ret_btf_id;
+
+				ret_t = btf_type_by_id(ret_btf, ret_btf_id);
+				if (!ret_t || !__btf_type_is_struct(ret_t)) {
+					verbose(env, "bpf_obj_new type ID argument must be of a struct\n");
+					return -EINVAL;
+				}
+
+				env->insn_aux_data[insn_idx].obj_new_size = ret_t->size;
+				env->insn_aux_data[insn_idx].kptr_struct_meta =
+					btf_find_struct_meta(ret_btf, ret_btf_id);
+			} else {
+				verbose(env, "kernel function %s unhandled dynamic return type\n",
+					meta.func_name);
+				return -EFAULT;
+			}
+		} else if (!__btf_type_is_struct(ptr_type)) {
 			if (!meta.r0_size) {
 				ptr_type_name = btf_name_by_offset(desc_btf,
 								   ptr_type->name_off);
@@ -8333,6 +8400,7 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			regs[BPF_REG_0].type = PTR_TO_BTF_ID;
 			regs[BPF_REG_0].btf_id = ptr_type_id;
 		}
+
 		if (is_kfunc_ret_null(&meta)) {
 			regs[BPF_REG_0].type |= PTR_MAYBE_NULL;
 			/* For mark_ptr_or_null_reg, see 93c230e3f5bd6 */
@@ -14471,8 +14539,8 @@ static int fixup_call_args(struct bpf_verifier_env *env)
 	return err;
 }
 
-static int fixup_kfunc_call(struct bpf_verifier_env *env,
-			    struct bpf_insn *insn)
+static int fixup_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
+			    struct bpf_insn *insn_buf, int insn_idx, int *cnt)
 {
 	const struct bpf_kfunc_desc *desc;
 
@@ -14491,8 +14559,21 @@ static int fixup_kfunc_call(struct bpf_verifier_env *env,
 		return -EFAULT;
 	}
 
+	*cnt = 0;
 	insn->imm = desc->imm;
+	if (insn->off)
+		return 0;
+	if (desc->func_id == special_kfunc_list[KF_bpf_obj_new_impl]) {
+		struct btf_struct_meta *kptr_struct_meta = env->insn_aux_data[insn_idx].kptr_struct_meta;
+		struct bpf_insn addr[2] = { BPF_LD_IMM64(BPF_REG_2, (long)kptr_struct_meta) };
+		u64 obj_new_size = env->insn_aux_data[insn_idx].obj_new_size;
 
+		insn_buf[0] = BPF_MOV64_IMM(BPF_REG_1, obj_new_size);
+		insn_buf[1] = addr[0];
+		insn_buf[2] = addr[1];
+		insn_buf[3] = *insn;
+		*cnt = 4;
+	}
 	return 0;
 }
 
@@ -14634,9 +14715,19 @@ static int do_misc_fixups(struct bpf_verifier_env *env)
 		if (insn->src_reg == BPF_PSEUDO_CALL)
 			continue;
 		if (insn->src_reg == BPF_PSEUDO_KFUNC_CALL) {
-			ret = fixup_kfunc_call(env, insn);
+			ret = fixup_kfunc_call(env, insn, insn_buf, i + delta, &cnt);
 			if (ret)
 				return ret;
+			if (cnt == 0)
+				continue;
+
+			new_prog = bpf_patch_insn_data(env, i + delta, insn_buf, cnt);
+			if (!new_prog)
+				return -ENOMEM;
+
+			delta	 += cnt - 1;
+			env->prog = prog = new_prog;
+			insn	  = new_prog->insnsi + i + delta;
 			continue;
 		}
 
diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
new file mode 100644
index 000000000000..1d3451084a68
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -0,0 +1,20 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+/* Description
+ *	Allocates a local kptr of type represented by 'local_type_id' in program
+ *	BTF. User may use the bpf_core_type_id_local macro to pass the type ID
+ *	of a struct in program BTF.
+ *
+ *	The 'local_type_id' parameter must be a known constant.
+ *	The 'meta' parameter is a hidden argument that is ignored.
+ * Returns
+ *	A local kptr corresponding to passed in 'local_type_id', or NULL on
+ *	failure.
+ */
+extern void *bpf_obj_new_impl(__u64 local_type_id, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_obj_new_impl */
+#define bpf_obj_new(type) bpf_obj_new_impl(bpf_core_type_id_local(type), NULL)
-- 
2.38.1

[PATCH bpf-next v3 20/24] bpf: Introduce bpf_obj_drop

[Kumar Kartikeya Dwivedi]

Introduce bpf_obj_drop, which is the kfunc used to free local kptrs
allocated using bpf_obj_new. Similar to bpf_obj_new, it implicitly
destructs the fields part of the local kptr automatically without user
intervention.

Just like the previous patch, btf_struct_meta that is needed to free up
the special fields is passed as a hidden argument to the kfunc.

For the user, a convenience macro hides over the kernel side kfunc which
is named bpf_obj_drop_impl.

Continuing the previous example:

void prog(void) {
	struct foo *f;

	f = bpf_obj_new(typeof(*f));
	if (!f)
		return;
	bpf_obj_drop(f);
}

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/helpers.c                          | 11 ++++
 kernel/bpf/verifier.c                         | 66 +++++++++++++++----
 .../testing/selftests/bpf/bpf_experimental.h  | 13 ++++
 3 files changed, 79 insertions(+), 11 deletions(-)

diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index b78eaf8ae554..69fc73479f34 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1764,6 +1764,16 @@ void *bpf_obj_new_impl(u64 local_type_id__k, void *meta__ign)
 	return p;
 }
 
+void bpf_obj_drop_impl(void *p__lkptr, void *meta__ign)
+{
+	struct btf_struct_meta *meta = meta__ign;
+	void *p = p__lkptr;
+
+	if (meta)
+		bpf_obj_free_fields(meta->record, p);
+	bpf_mem_free(&bpf_global_ma, p);
+}
+
 __diag_pop();
 
 BTF_SET8_START(generic_btf_ids)
@@ -1771,6 +1781,7 @@ BTF_SET8_START(generic_btf_ids)
 BTF_ID_FLAGS(func, crash_kexec, KF_DESTRUCTIVE)
 #endif
 BTF_ID_FLAGS(func, bpf_obj_new_impl, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kptr_drop_impl, KF_RELEASE)
 BTF_SET8_END(generic_btf_ids)
 
 static const struct btf_kfunc_id_set generic_kfunc_set = {
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index a04a98b23524..bb47eb8b0254 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7703,6 +7703,10 @@ struct bpf_kfunc_call_arg_meta {
 		u64 value;
 		bool found;
 	} arg_constant;
+	struct {
+		struct btf *btf;
+		u32 btf_id;
+	} arg_obj_drop;
 };
 
 static bool is_kfunc_acquire(struct bpf_kfunc_call_arg_meta *meta)
@@ -7781,6 +7785,11 @@ static bool is_kfunc_arg_sfx_ignore(const struct btf *btf, const struct btf_para
 	return __kfunc_param_match_suffix(btf, arg, "__ign");
 }
 
+static bool is_kfunc_arg_local_kptr(const struct btf *btf, const struct btf_param *arg)
+{
+	return __kfunc_param_match_suffix(btf, arg, "__lkptr");
+}
+
 static bool is_kfunc_arg_ret_buf_size(const struct btf *btf,
 				      const struct btf_param *arg,
 				      const struct bpf_reg_state *reg,
@@ -7881,6 +7890,7 @@ static u32 *reg2btf_ids[__BPF_REG_TYPE_MAX] = {
 
 enum kfunc_ptr_arg_type {
 	KF_ARG_PTR_TO_CTX,
+	KF_ARG_PTR_TO_LOCAL_BTF_ID,  /* Local kptr */
 	KF_ARG_PTR_TO_BTF_ID,	     /* Also covers reg2btf_ids conversions */
 	KF_ARG_PTR_TO_KPTR_STRONG,   /* PTR_TO_KPTR but type specific */
 	KF_ARG_PTR_TO_DYNPTR,
@@ -7888,6 +7898,20 @@ enum kfunc_ptr_arg_type {
 	KF_ARG_PTR_TO_MEM_SIZE,	     /* Size derived from next argument, skip it */
 };
 
+enum special_kfunc_type {
+	KF_bpf_obj_new_impl,
+	KF_bpf_obj_drop_impl,
+};
+
+BTF_SET_START(special_kfunc_set)
+BTF_ID(func, bpf_obj_new_impl)
+BTF_ID(func, bpf_obj_drop_impl)
+BTF_SET_END(special_kfunc_set)
+
+BTF_ID_LIST(special_kfunc_list)
+BTF_ID(func, bpf_obj_new_impl)
+BTF_ID(func, bpf_obj_drop_impl)
+
 static enum kfunc_ptr_arg_type
 get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
 		       struct bpf_kfunc_call_arg_meta *meta,
@@ -7908,6 +7932,9 @@ get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
 	if (btf_get_prog_ctx_type(&env->log, meta->btf, t, resolve_prog_type(env->prog), argno))
 		return KF_ARG_PTR_TO_CTX;
 
+	if (is_kfunc_arg_local_kptr(meta->btf, &args[argno]))
+		return KF_ARG_PTR_TO_LOCAL_BTF_ID;
+
 	if ((base_type(reg->type) == PTR_TO_BTF_ID || reg2btf_ids[base_type(reg->type)])) {
 		if (!btf_type_is_struct(ref_t)) {
 			verbose(env, "kernel function %s args#%d pointer type %s %s is not supported\n",
@@ -8126,6 +8153,7 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 			return kf_arg_type;
 
 		switch (kf_arg_type) {
+		case KF_ARG_PTR_TO_LOCAL_BTF_ID:
 		case KF_ARG_PTR_TO_BTF_ID:
 			if (is_kfunc_trusted_args(meta) && !reg->ref_obj_id) {
 				verbose(env, "R%d must be referenced\n", regno);
@@ -8160,6 +8188,21 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 				return -EINVAL;
 			}
 			break;
+		case KF_ARG_PTR_TO_LOCAL_BTF_ID:
+			if (reg->type != (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
+				verbose(env, "arg#%d expected point to local kptr\n", i);
+				return -EINVAL;
+			}
+			if (!reg->ref_obj_id) {
+				verbose(env, "local kptr must be referenced\n");
+				return -EINVAL;
+			}
+			if (meta->btf == btf_vmlinux &&
+			    meta->func_id == special_kfunc_list[KF_bpf_obj_drop_impl]) {
+				meta->arg_obj_drop.btf = reg->btf;
+				meta->arg_obj_drop.btf_id = reg->btf_id;
+			}
+			break;
 		case KF_ARG_PTR_TO_BTF_ID:
 			/* Only base_type is checked, further checks are done here */
 			if (reg->type != PTR_TO_BTF_ID &&
@@ -8230,17 +8273,6 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 	return 0;
 }
 
-enum special_kfunc_type {
-	KF_bpf_obj_new_impl,
-};
-
-BTF_SET_START(special_kfunc_set)
-BTF_ID(func, bpf_obj_new_impl)
-BTF_SET_END(special_kfunc_set)
-
-BTF_ID_LIST(special_kfunc_list)
-BTF_ID(func, bpf_obj_new_impl)
-
 static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 			    int *insn_idx_p)
 {
@@ -8367,6 +8399,10 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 				env->insn_aux_data[insn_idx].obj_new_size = ret_t->size;
 				env->insn_aux_data[insn_idx].kptr_struct_meta =
 					btf_find_struct_meta(ret_btf, ret_btf_id);
+			} else if (meta.func_id == special_kfunc_list[KF_bpf_obj_drop_impl]) {
+				env->insn_aux_data[insn_idx].kptr_struct_meta =
+					btf_find_struct_meta(meta.arg_obj_drop.btf,
+							     meta.arg_obj_drop.btf_id);
 			} else {
 				verbose(env, "kernel function %s unhandled dynamic return type\n",
 					meta.func_name);
@@ -14573,6 +14609,14 @@ static int fixup_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 		insn_buf[2] = addr[1];
 		insn_buf[3] = *insn;
 		*cnt = 4;
+	} else if (desc->func_id == special_kfunc_list[KF_bpf_obj_drop_impl]) {
+		struct btf_struct_meta *kptr_struct_meta = env->insn_aux_data[insn_idx].kptr_struct_meta;
+		struct bpf_insn addr[2] = { BPF_LD_IMM64(BPF_REG_2, (long)kptr_struct_meta) };
+
+		insn_buf[0] = addr[0];
+		insn_buf[1] = addr[1];
+		insn_buf[2] = *insn;
+		*cnt = 3;
 	}
 	return 0;
 }
diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 1d3451084a68..29a5520a4250 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -18,3 +18,16 @@ extern void *bpf_obj_new_impl(__u64 local_type_id, void *meta) __ksym;
 
 /* Convenience macro to wrap over bpf_obj_new_impl */
 #define bpf_obj_new(type) bpf_obj_new_impl(bpf_core_type_id_local(type), NULL)
+
+/* Description
+ *	Free a local kptr. All fields of local kptr that require destruction
+ *	will be destructed before the storage is freed.
+ *
+ *	The 'meta' parameter is a hidden argument that is ignored.
+ * Returns
+ *	Void.
+ */
+extern void bpf_obj_drop_impl(void *kptr, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_obj_drop_impl */
+#define bpf_obj_drop(kptr) bpf_obj_drop_impl(kptr, NULL)
-- 
2.38.1

[PATCH bpf-next v3 21/24] bpf: Permit NULL checking pointer with non-zero fixed offset

[Kumar Kartikeya Dwivedi]

Pointer increment on seeing PTR_MAYBE_NULL is already protected against,
hence make an exception for local kptrs while still keeping the warning
for other unintended cases that might creep in.

bpf_list_del{,tail} helpers return a local kptr with incremented offset
pointing to bpf_list_node field. The user is supposed to then obtain the
pointer to the entry using container_of after NULL checking it. The
current restrictions trigger a warning when doing the NULL checking.
Revisiting the reason, it is meant as an assertion which seems to
actually work and catch the bad case.

Hence, under no other circumstances can reg->off be non-zero for a
register that has the PTR_MAYBE_NULL type flag set.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/verifier.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index bb47eb8b0254..73bfbf3628b3 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -10621,15 +10621,20 @@ static void mark_ptr_or_null_reg(struct bpf_func_state *state,
 {
 	if (type_may_be_null(reg->type) && reg->id == id &&
 	    !WARN_ON_ONCE(!reg->id)) {
-		if (WARN_ON_ONCE(reg->smin_value || reg->smax_value ||
-				 !tnum_equals_const(reg->var_off, 0) ||
-				 reg->off)) {
+		if (reg->smin_value || reg->smax_value || !tnum_equals_const(reg->var_off, 0) || reg->off) {
 			/* Old offset (both fixed and variable parts) should
 			 * have been known-zero, because we don't allow pointer
 			 * arithmetic on pointers that might be NULL. If we
 			 * see this happening, don't convert the register.
+			 *
+			 * But in some cases, some helpers that return local
+			 * kptrs advance offset for the returned pointer.
+			 * In those cases, it is fine to expect to see reg->off.
 			 */
-			return;
+			if (WARN_ON_ONCE(reg->type != (PTR_TO_BTF_ID | MEM_TYPE_LOCAL | PTR_MAYBE_NULL)))
+				return;
+			if (WARN_ON_ONCE(reg->smin_value || reg->smax_value || !tnum_equals_const(reg->var_off, 0)))
+				return;
 		}
 		if (is_null) {
 			reg->type = SCALAR_VALUE;
-- 
2.38.1

[PATCH bpf-next v3 22/24] bpf: Introduce single ownership BPF linked list API

[Kumar Kartikeya Dwivedi]

Add a linked list API for use in BPF programs, where it expects
protection from the bpf_spin_lock in the same allocation as the
bpf_list_head. Future patches will extend the same infrastructure to
have different flavors with varying protection domains and visibility
(e.g. percpu variant with local_t protection, usable in NMI progs).

The following functions are added to kick things off:

bpf_list_push_front
bpf_list_push_back
bpf_list_pop_front
bpf_list_pop_back

The lock protecting the bpf_list_head needs to be taken for all
operations.

Once a node has been added to the list, it's pointer changes to
PTR_UNTRUSTED. However, it is only released once the lock protecting the
list is unlocked. For such local kptrs with PTR_UNTRUSTED set but an
active ref_obj_id, it is still permitted to read and write to them as
long as the lock is held.

bpf_list_pop_front and bpf_list_pop_back delete the first or last item
of the list respectively, and return pointer to the element at the
list_node offset. The user can then use container_of style macro to get
the actual entry type. The verifier however statically knows the actual
type, so the safety properties are still preserved.

With these additions, programs can now manage their own linked lists and
store their objects in them.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf_verifier.h                  |   5 +
 kernel/bpf/helpers.c                          |  50 ++-
 kernel/bpf/verifier.c                         | 377 ++++++++++++++++--
 .../testing/selftests/bpf/bpf_experimental.h  |  28 ++
 4 files changed, 425 insertions(+), 35 deletions(-)

diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 1e9c782e0974..bde8f9e11132 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -229,6 +229,11 @@ struct bpf_reference_state {
 	 * exiting a callback function.
 	 */
 	int callback_ref;
+	/* Mark the reference state to release the registers sharing the same id
+	 * on bpf_spin_unlock (for nodes that we will lose ownership to but are
+	 * safe to access inside the critical section).
+	 */
+	bool release_on_unlock;
 };
 
 /* state of the program:
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 69fc73479f34..e6945ce7e296 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1774,6 +1774,50 @@ void bpf_obj_drop_impl(void *p__lkptr, void *meta__ign)
 	bpf_mem_free(&bpf_global_ma, p);
 }
 
+static void __bpf_list_add(struct bpf_list_node *node, struct bpf_list_head *head, bool tail)
+{
+	struct list_head *n = (void *)node, *h = (void *)head;
+
+	if (unlikely(!h->next))
+		INIT_LIST_HEAD(h);
+	if (unlikely(!n->next))
+		INIT_LIST_HEAD(n);
+	tail ? list_add_tail(n, h) : list_add(n, h);
+}
+
+void bpf_list_push_front(struct bpf_list_head *head, struct bpf_list_node *node)
+{
+	return __bpf_list_add(node, head, false);
+}
+
+void bpf_list_push_back(struct bpf_list_head *head, struct bpf_list_node *node)
+{
+	return __bpf_list_add(node, head, true);
+}
+
+static struct bpf_list_node *__bpf_list_del(struct bpf_list_head *head, bool tail)
+{
+	struct list_head *n, *h = (void *)head;
+
+	if (unlikely(!h->next))
+		INIT_LIST_HEAD(h);
+	if (list_empty(h))
+		return NULL;
+	n = tail ? h->prev : h->next;
+	list_del_init(n);
+	return (struct bpf_list_node *)n;
+}
+
+struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head)
+{
+	return __bpf_list_del(head, false);
+}
+
+struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head)
+{
+	return __bpf_list_del(head, true);
+}
+
 __diag_pop();
 
 BTF_SET8_START(generic_btf_ids)
@@ -1781,7 +1825,11 @@ BTF_SET8_START(generic_btf_ids)
 BTF_ID_FLAGS(func, crash_kexec, KF_DESTRUCTIVE)
 #endif
 BTF_ID_FLAGS(func, bpf_obj_new_impl, KF_ACQUIRE | KF_RET_NULL)
-BTF_ID_FLAGS(func, bpf_kptr_drop_impl, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_obj_drop_impl, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_list_push_front)
+BTF_ID_FLAGS(func, bpf_list_push_back)
+BTF_ID_FLAGS(func, bpf_list_pop_front, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_list_pop_back, KF_ACQUIRE | KF_RET_NULL)
 BTF_SET8_END(generic_btf_ids)
 
 static const struct btf_kfunc_id_set generic_kfunc_set = {
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 73bfbf3628b3..4aef7aaf7fd0 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5495,7 +5495,9 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 			cur->active_spin_lock_ptr = btf;
 		cur->active_spin_lock_id = reg->id;
 	} else {
+		struct bpf_func_state *fstate = cur_func(env);
 		void *ptr;
+		int i;
 
 		if (map)
 			ptr = map;
@@ -5513,6 +5515,16 @@ static int process_spin_lock(struct bpf_verifier_env *env, int regno,
 		}
 		cur->active_spin_lock_ptr = NULL;
 		cur->active_spin_lock_id = 0;
+
+		for (i = 0; i < fstate->acquired_refs; i++) {
+			/* WARN because this reference state cannot be freed
+			 * before this point, as bpf_spin_lock CS does not
+			 * allow functions that release the local kptr
+			 * immediately.
+			 */
+			if (fstate->refs[i].release_on_unlock)
+				WARN_ON_ONCE(release_reference(env, fstate->refs[i].id));
+		}
 	}
 	return 0;
 }
@@ -7707,6 +7719,9 @@ struct bpf_kfunc_call_arg_meta {
 		struct btf *btf;
 		u32 btf_id;
 	} arg_obj_drop;
+	struct {
+		struct btf_field *field;
+	} arg_list_head;
 };
 
 static bool is_kfunc_acquire(struct bpf_kfunc_call_arg_meta *meta)
@@ -7817,13 +7832,17 @@ static bool is_kfunc_arg_ret_buf_size(const struct btf *btf,
 
 enum {
 	KF_ARG_DYNPTR_ID,
+	KF_ARG_LIST_HEAD_ID,
+	KF_ARG_LIST_NODE_ID,
 };
 
 BTF_ID_LIST(kf_arg_btf_ids)
 BTF_ID(struct, bpf_dynptr_kern)
+BTF_ID(struct, bpf_list_head)
+BTF_ID(struct, bpf_list_node)
 
-static bool is_kfunc_arg_dynptr(const struct btf *btf,
-				const struct btf_param *arg)
+static bool __is_kfunc_ptr_arg_type(const struct btf *btf,
+				    const struct btf_param *arg, int type)
 {
 	const struct btf_type *t;
 	u32 res_id;
@@ -7836,7 +7855,22 @@ static bool is_kfunc_arg_dynptr(const struct btf *btf,
 	t = btf_type_skip_modifiers(btf, t->type, &res_id);
 	if (!t)
 		return false;
-	return btf_types_are_same(btf, res_id, btf_vmlinux, kf_arg_btf_ids[KF_ARG_DYNPTR_ID]);
+	return btf_types_are_same(btf, res_id, btf_vmlinux, kf_arg_btf_ids[type]);
+}
+
+static bool is_kfunc_arg_dynptr(const struct btf *btf, const struct btf_param *arg)
+{
+	return __is_kfunc_ptr_arg_type(btf, arg, KF_ARG_DYNPTR_ID);
+}
+
+static bool is_kfunc_arg_list_head(const struct btf *btf, const struct btf_param *arg)
+{
+	return __is_kfunc_ptr_arg_type(btf, arg, KF_ARG_LIST_HEAD_ID);
+}
+
+static bool is_kfunc_arg_list_node(const struct btf *btf, const struct btf_param *arg)
+{
+	return __is_kfunc_ptr_arg_type(btf, arg, KF_ARG_LIST_NODE_ID);
 }
 
 /* Returns true if struct is composed of scalars, 4 levels of nesting allowed */
@@ -7891,9 +7925,11 @@ static u32 *reg2btf_ids[__BPF_REG_TYPE_MAX] = {
 enum kfunc_ptr_arg_type {
 	KF_ARG_PTR_TO_CTX,
 	KF_ARG_PTR_TO_LOCAL_BTF_ID,  /* Local kptr */
-	KF_ARG_PTR_TO_BTF_ID,	     /* Also covers reg2btf_ids conversions */
 	KF_ARG_PTR_TO_KPTR_STRONG,   /* PTR_TO_KPTR but type specific */
 	KF_ARG_PTR_TO_DYNPTR,
+	KF_ARG_PTR_TO_LIST_HEAD,
+	KF_ARG_PTR_TO_LIST_NODE,
+	KF_ARG_PTR_TO_BTF_ID,	     /* Also covers reg2btf_ids conversions */
 	KF_ARG_PTR_TO_MEM,
 	KF_ARG_PTR_TO_MEM_SIZE,	     /* Size derived from next argument, skip it */
 };
@@ -7901,16 +7937,28 @@ enum kfunc_ptr_arg_type {
 enum special_kfunc_type {
 	KF_bpf_obj_new_impl,
 	KF_bpf_obj_drop_impl,
+	KF_bpf_list_push_front,
+	KF_bpf_list_push_back,
+	KF_bpf_list_pop_front,
+	KF_bpf_list_pop_back,
 };
 
 BTF_SET_START(special_kfunc_set)
 BTF_ID(func, bpf_obj_new_impl)
 BTF_ID(func, bpf_obj_drop_impl)
+BTF_ID(func, bpf_list_push_front)
+BTF_ID(func, bpf_list_push_back)
+BTF_ID(func, bpf_list_pop_front)
+BTF_ID(func, bpf_list_pop_back)
 BTF_SET_END(special_kfunc_set)
 
 BTF_ID_LIST(special_kfunc_list)
 BTF_ID(func, bpf_obj_new_impl)
 BTF_ID(func, bpf_obj_drop_impl)
+BTF_ID(func, bpf_list_push_front)
+BTF_ID(func, bpf_list_push_back)
+BTF_ID(func, bpf_list_pop_front)
+BTF_ID(func, bpf_list_pop_back)
 
 static enum kfunc_ptr_arg_type
 get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
@@ -7935,15 +7983,6 @@ get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
 	if (is_kfunc_arg_local_kptr(meta->btf, &args[argno]))
 		return KF_ARG_PTR_TO_LOCAL_BTF_ID;
 
-	if ((base_type(reg->type) == PTR_TO_BTF_ID || reg2btf_ids[base_type(reg->type)])) {
-		if (!btf_type_is_struct(ref_t)) {
-			verbose(env, "kernel function %s args#%d pointer type %s %s is not supported\n",
-				meta->func_name, argno, btf_type_str(ref_t), ref_tname);
-			return -EINVAL;
-		}
-		return KF_ARG_PTR_TO_BTF_ID;
-	}
-
 	if (is_kfunc_arg_kptr_get(meta, argno)) {
 		if (!btf_type_is_ptr(ref_t)) {
 			verbose(env, "arg#0 BTF type must be a double pointer for kptr_get kfunc\n");
@@ -7962,6 +8001,21 @@ get_kfunc_ptr_arg_type(struct bpf_verifier_env *env,
 	if (is_kfunc_arg_dynptr(meta->btf, &args[argno]))
 		return KF_ARG_PTR_TO_DYNPTR;
 
+	if (is_kfunc_arg_list_head(meta->btf, &args[argno]))
+		return KF_ARG_PTR_TO_LIST_HEAD;
+
+	if (is_kfunc_arg_list_node(meta->btf, &args[argno]))
+		return KF_ARG_PTR_TO_LIST_NODE;
+
+	if ((base_type(reg->type) == PTR_TO_BTF_ID || reg2btf_ids[base_type(reg->type)])) {
+		if (!btf_type_is_struct(ref_t)) {
+			verbose(env, "kernel function %s args#%d pointer type %s %s is not supported\n",
+				meta->func_name, argno, btf_type_str(ref_t), ref_tname);
+			return -EINVAL;
+		}
+		return KF_ARG_PTR_TO_BTF_ID;
+	}
+
 	if (argno + 1 < nargs && is_kfunc_arg_mem_size(meta->btf, &args[argno + 1], &regs[regno + 1]))
 		arg_mem_size = true;
 
@@ -8048,6 +8102,225 @@ static int process_kf_arg_ptr_to_kptr_strong(struct bpf_verifier_env *env,
 	return 0;
 }
 
+static int ref_set_release_on_unlock(struct bpf_verifier_env *env, u32 ref_obj_id)
+{
+	struct bpf_func_state *state = cur_func(env);
+	struct bpf_reg_state *reg;
+	int i;
+
+	/* bpf_spin_lock only allows calling list_push and list_pop, no BPF
+	 * subprogs, no global functions, so this acquired refs state will
+	 * remain unchanged till we find registers to kill on bpf_spin_unlock.
+	 *
+	 * The acquired refs state is therefore not modified inside the
+	 * bpf_spin_lock critical section by any means, nor is it copied into
+	 * another frame as subprog calls are disallowed.
+	 */
+	if (!ref_obj_id) {
+		verbose(env, "verifier internal error: ref_obj_id is zero for release_on_unlock\n");
+		return -EFAULT;
+	}
+	for (i = 0; i < state->acquired_refs; i++) {
+		if (state->refs[i].id == ref_obj_id) {
+			WARN_ON_ONCE(state->refs[i].release_on_unlock);
+			state->refs[i].release_on_unlock = true;
+			/* Now mark everyone sharing same ref_obj_id as untrusted */
+			bpf_for_each_reg_in_vstate(env->cur_state, state, reg, ({
+				if (reg->ref_obj_id == ref_obj_id)
+					reg->type |= PTR_UNTRUSTED;
+			}));
+			return 0;
+		}
+	}
+	verbose(env, "verifier internal error: ref state missing for ref_obj_id\n");
+	return -EFAULT;
+}
+
+/* Implementation details:
+ *
+ * Each register points to some region of memory, which we define as an
+ * allocation. Each allocation may embed a bpf_spin_lock which protects any
+ * special BPF objects (bpf_list_head, bpf_rb_root, etc.) part of the same
+ * allocation. The lock and the data it protects are co-located in the same
+ * memory region.
+ *
+ * Hence, everytime a register holds a pointer value pointing to such
+ * allocation, the verifier preserves a unique reg->id for it.
+ *
+ * The verifier remembers the lock 'class' and the lock 'id' whenever
+ * bpf_spin_lock is called.
+ *
+ * To enable this, lock state in the verifier captures two values:
+ *	active_spin_lock_ptr = A value identifying the register's class
+ *	active_spin_lock_id  = A unique ID for each register pointer value
+ *
+ * Currently, PTR_TO_MAP_VALUE and PTR_TO_BTF_ID | MEM_TYPE_LOCAL are the two
+ * supported register types.
+ *
+ * The active_spin_lock_ptr in case of map values is the reg->map_ptr, and in
+ * case of local kptrs is the reg->btf pointer.
+ *
+ * The active_spin_lock_id is non-unique for maps supporting direct_value_addr,
+ * as we can establish the provenance of the map value statically for each
+ * distinct lookup into such maps.
+ *
+ * In case of global variables, they use array maps with max_entries = 1, hence
+ * their active_spin_lock_ptr becomes map_ptr and id = 0 (since they all point
+ * into the same map value as max_entries is 1).
+ *
+ * In case of inner map lookups, the inner map pointer has same map_ptr as the
+ * outer map pointer (in verifier context), but each lookup into an inner map
+ * assigns a fresh reg->id to the lookup, so while lookups into distinct inner
+ * maps from the same outer map share the same map_ptr as active_spin_lock_ptr,
+ * they will get different reg->id assigned to each lookup.
+ *
+ * In case of local kptrs, active_spin_lock_ptr is the reg->btf, and the reg->id
+ * is a unique ID preserved after the NULL pointer check on the local kptr after
+ * its allocation using bpf_obj_new.
+ */
+static int check_reg_allocation_locked(struct bpf_verifier_env *env, struct bpf_reg_state *reg)
+{
+	void *ptr;
+	u32 id;
+
+	switch ((int)reg->type) {
+	case PTR_TO_MAP_VALUE:
+		ptr = reg->map_ptr;
+		break;
+	case PTR_TO_BTF_ID | MEM_TYPE_LOCAL:
+		ptr = reg->btf;
+		break;
+	default:
+		verbose(env, "verifier internal error: unknown reg type for lock check\n");
+		return -EFAULT;
+	}
+	id = reg->id;
+
+	if (env->cur_state->active_spin_lock_ptr != ptr ||
+	    env->cur_state->active_spin_lock_id != id) {
+		verbose(env, "mismatch between held lock and object allocation provenance\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static bool is_bpf_list_api_kfunc(u32 btf_id)
+{
+	return btf_id == special_kfunc_list[KF_bpf_list_push_front] ||
+	       btf_id == special_kfunc_list[KF_bpf_list_push_back] ||
+	       btf_id == special_kfunc_list[KF_bpf_list_pop_front] ||
+	       btf_id == special_kfunc_list[KF_bpf_list_pop_back];
+}
+
+static int process_kf_arg_ptr_to_list_head(struct bpf_verifier_env *env,
+					   struct bpf_reg_state *reg, u32 regno,
+					   struct bpf_kfunc_call_arg_meta *meta)
+{
+	struct btf_record *rec = NULL;
+	struct btf_field *field;
+	u32 list_head_off;
+
+	if (meta->btf != btf_vmlinux || !is_bpf_list_api_kfunc(meta->func_id)) {
+		verbose(env, "verifier internal error: bpf_list_head argument for unknown kfunc\n");
+		return -EFAULT;
+	}
+
+	if (reg->type == PTR_TO_MAP_VALUE) {
+		rec = reg->map_ptr->record;
+	} else /* PTR_TO_BTF_ID | MEM_TYPE_LOCAL */ {
+		struct btf_struct_meta *meta;
+
+		meta = btf_find_struct_meta(reg->btf, reg->btf_id);
+		if (!meta) {
+			verbose(env, "bpf_list_head not found for local kptr\n");
+			return -EINVAL;
+		}
+		rec = meta->record;
+	}
+
+	if (!tnum_is_const(reg->var_off)) {
+		verbose(env,
+			"R%d doesn't have constant offset. bpf_list_head has to be at the constant offset\n",
+			regno);
+		return -EINVAL;
+	}
+
+	list_head_off = reg->off + reg->var_off.value;
+	field = btf_record_find(rec, list_head_off, BPF_LIST_HEAD);
+	if (!field) {
+		verbose(env, "bpf_list_head not found at offset=%u\n", list_head_off);
+		return -EINVAL;
+	}
+
+	/* All functions require bpf_list_head to be protected using a bpf_spin_lock */
+	if (check_reg_allocation_locked(env, reg)) {
+		verbose(env, "bpf_spin_lock at off=%d must be held for manipulating bpf_list_head\n",
+			rec->spin_lock_off);
+		return -EINVAL;
+	}
+
+	if (meta->arg_list_head.field) {
+		verbose(env, "verifier internal error: repeating bpf_list_head arg\n");
+		return -EFAULT;
+	}
+	meta->arg_list_head.field = field;
+	return 0;
+}
+
+static int process_kf_arg_ptr_to_list_node(struct bpf_verifier_env *env,
+					   struct bpf_reg_state *reg, u32 regno,
+					   struct bpf_kfunc_call_arg_meta *meta)
+{
+	struct btf_struct_meta *struct_meta;
+	struct btf_field *field;
+	struct btf_record *rec;
+	u32 list_node_off;
+
+	if (meta->btf != btf_vmlinux ||
+	    (meta->func_id != special_kfunc_list[KF_bpf_list_push_front] &&
+	     meta->func_id != special_kfunc_list[KF_bpf_list_push_back])) {
+		verbose(env, "verifier internal error: bpf_list_head argument for unknown kfunc\n");
+		return -EFAULT;
+	}
+
+	if (!tnum_is_const(reg->var_off)) {
+		verbose(env,
+			"R%d doesn't have constant offset. bpf_list_head has to be at the constant offset\n",
+			regno);
+		return -EINVAL;
+	}
+
+	struct_meta = btf_find_struct_meta(reg->btf, reg->btf_id);
+	if (!struct_meta) {
+		verbose(env, "bpf_list_node not found for local kptr\n");
+		return -EINVAL;
+	}
+	rec = struct_meta->record;
+
+	list_node_off = reg->off + reg->var_off.value;
+	field = btf_record_find(rec, list_node_off, BPF_LIST_NODE);
+	if (!field || field->offset != list_node_off) {
+		verbose(env, "bpf_list_node not found at offset=%u\n", list_node_off);
+		return -EINVAL;
+	}
+
+	field = meta->arg_list_head.field;
+
+	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, 0, field->list_head.btf,
+				  field->list_head.value_btf_id, true)) {
+		verbose(env, "bpf_list_head value type does not match arg#1\n");
+		return -EINVAL;
+	}
+
+	if (list_node_off != field->list_head.node_offset) {
+		verbose(env, "arg#1 offset must be for bpf_list_node at off=%d\n",
+			field->list_head.node_offset);
+		return -EINVAL;
+	}
+	/* Set arg#1 for expiration after unlock */
+	return ref_set_release_on_unlock(env, reg->ref_obj_id);
+}
+
 static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_arg_meta *meta)
 {
 	const char *func_name = meta->func_name, *ref_tname;
@@ -8166,6 +8439,8 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 			break;
 		case KF_ARG_PTR_TO_KPTR_STRONG:
 		case KF_ARG_PTR_TO_DYNPTR:
+		case KF_ARG_PTR_TO_LIST_HEAD:
+		case KF_ARG_PTR_TO_LIST_NODE:
 		case KF_ARG_PTR_TO_MEM:
 		case KF_ARG_PTR_TO_MEM_SIZE:
 			/* Trusted by default */
@@ -8203,17 +8478,6 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 				meta->arg_obj_drop.btf_id = reg->btf_id;
 			}
 			break;
-		case KF_ARG_PTR_TO_BTF_ID:
-			/* Only base_type is checked, further checks are done here */
-			if (reg->type != PTR_TO_BTF_ID &&
-			    (!reg2btf_ids[base_type(reg->type)] || type_flag(reg->type))) {
-				verbose(env, "arg#%d expected pointer to btf or socket\n", i);
-				return -EINVAL;
-			}
-			ret = process_kf_arg_ptr_to_btf_id(env, reg, ref_t, ref_tname, ref_id, meta, i);
-			if (ret < 0)
-				return ret;
-			break;
 		case KF_ARG_PTR_TO_KPTR_STRONG:
 			if (reg->type != PTR_TO_MAP_VALUE) {
 				verbose(env, "arg#0 expected pointer to map value\n");
@@ -8241,6 +8505,44 @@ static int check_kfunc_args(struct bpf_verifier_env *env, struct bpf_kfunc_call_
 				return -EINVAL;
 			}
 			break;
+		case KF_ARG_PTR_TO_LIST_HEAD:
+			if (reg->type != PTR_TO_MAP_VALUE &&
+			    reg->type != (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
+				verbose(env, "arg#%d expected pointer to map value or local kptr\n", i);
+				return -EINVAL;
+			}
+			if (reg->type == (PTR_TO_BTF_ID | MEM_TYPE_LOCAL) && !reg->ref_obj_id) {
+				verbose(env, "local kptr must be referenced\n");
+				return -EINVAL;
+			}
+			ret = process_kf_arg_ptr_to_list_head(env, reg, regno, meta);
+			if (ret < 0)
+				return ret;
+			break;
+		case KF_ARG_PTR_TO_LIST_NODE:
+			if (reg->type != (PTR_TO_BTF_ID | MEM_TYPE_LOCAL)) {
+				verbose(env, "arg#%d expected point to local kptr\n", i);
+				return -EINVAL;
+			}
+			if (!reg->ref_obj_id) {
+				verbose(env, "local kptr must be referenced\n");
+				return -EINVAL;
+			}
+			ret = process_kf_arg_ptr_to_list_node(env, reg, regno, meta);
+			if (ret < 0)
+				return ret;
+			break;
+		case KF_ARG_PTR_TO_BTF_ID:
+			/* Only base_type is checked, further checks are done here */
+			if (reg->type != PTR_TO_BTF_ID &&
+			    (!reg2btf_ids[base_type(reg->type)] || type_flag(reg->type))) {
+				verbose(env, "arg#%d expected pointer to btf or socket\n", i);
+				return -EINVAL;
+			}
+			ret = process_kf_arg_ptr_to_btf_id(env, reg, ref_t, ref_tname, ref_id, meta, i);
+			if (ret < 0)
+				return ret;
+			break;
 		case KF_ARG_PTR_TO_MEM:
 			resolve_ret = btf_resolve_size(btf, ref_t, &type_size);
 			if (IS_ERR(resolve_ret)) {
@@ -8361,11 +8663,6 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 		ptr_type = btf_type_skip_modifiers(desc_btf, t->type, &ptr_type_id);
 
 		if (meta.btf == btf_vmlinux && btf_id_set_contains(&special_kfunc_set, meta.func_id)) {
-			if (!btf_type_is_void(ptr_type)) {
-				verbose(env, "kernel function %s must have void * return type\n",
-					meta.func_name);
-				return -EINVAL;
-			}
 			if (meta.func_id == special_kfunc_list[KF_bpf_obj_new_impl]) {
 				const struct btf_type *ret_t;
 				struct btf *ret_btf;
@@ -8403,6 +8700,15 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
 				env->insn_aux_data[insn_idx].kptr_struct_meta =
 					btf_find_struct_meta(meta.arg_obj_drop.btf,
 							     meta.arg_obj_drop.btf_id);
+			} else if (meta.func_id == special_kfunc_list[KF_bpf_list_pop_front] ||
+				   meta.func_id == special_kfunc_list[KF_bpf_list_pop_back]) {
+				struct btf_field *field = meta.arg_list_head.field;
+
+				mark_reg_known_zero(env, regs, BPF_REG_0);
+				regs[BPF_REG_0].type = PTR_TO_BTF_ID | MEM_TYPE_LOCAL;
+				regs[BPF_REG_0].btf = field->list_head.btf;
+				regs[BPF_REG_0].btf_id = field->list_head.value_btf_id;
+				regs[BPF_REG_0].off = field->list_head.node_offset;
 			} else {
 				verbose(env, "kernel function %s unhandled dynamic return type\n",
 					meta.func_name);
@@ -13071,11 +13377,14 @@ static int do_check(struct bpf_verifier_env *env)
 					return -EINVAL;
 				}
 
-				if (env->cur_state->active_spin_lock_ptr &&
-				    (insn->src_reg == BPF_PSEUDO_CALL ||
-				     insn->imm != BPF_FUNC_spin_unlock)) {
-					verbose(env, "function calls are not allowed while holding a lock\n");
-					return -EINVAL;
+				if (env->cur_state->active_spin_lock_ptr) {
+					if ((insn->src_reg == BPF_REG_0 && insn->imm != BPF_FUNC_spin_unlock) ||
+					    (insn->src_reg == BPF_PSEUDO_CALL) ||
+					    (insn->src_reg == BPF_PSEUDO_KFUNC_CALL &&
+					     (insn->off != 0 || !is_bpf_list_api_kfunc(insn->imm)))) {
+						verbose(env, "function calls are not allowed while holding a lock\n");
+						return -EINVAL;
+					}
 				}
 				if (insn->src_reg == BPF_PSEUDO_CALL)
 					err = check_func_call(env, insn, &env->insn_idx);
diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 29a5520a4250..4a76c64e50ad 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -31,3 +31,31 @@ extern void bpf_obj_drop_impl(void *kptr, void *meta) __ksym;
 
 /* Convenience macro to wrap over bpf_obj_drop_impl */
 #define bpf_obj_drop(kptr) bpf_obj_drop_impl(kptr, NULL)
+
+/* Description
+ *	Add a new entry to the beginning of the BPF linked list.
+ * Returns
+ *	Void.
+ */
+extern void bpf_list_push_front(struct bpf_list_head *head, struct bpf_list_node *node) __ksym;
+
+/* Description
+ *	Add a new entry to the end of the BPF linked list.
+ * Returns
+ *	Void.
+ */
+extern void bpf_list_push_back(struct bpf_list_head *head, struct bpf_list_node *node) __ksym;
+
+/* Description
+ *	Remove the entry at the beginning of the BPF linked list.
+ * Returns
+ *	Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
+ */
+extern struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head) __ksym;
+
+/* Description
+ *	Remove the entry at the end of the BPF linked list.
+ * Returns
+ *	Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
+ */
+extern struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head) __ksym;
-- 
2.38.1

[PATCH bpf-next v3 23/24] selftests/bpf: Add __contains macro to bpf_experimental.h

[Kumar Kartikeya Dwivedi]

Add user facing __contains macro which provides a convenient wrapper
over the verbose kernel specific BTF declaration tag required to
annotate BPF list head structs in user types.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 tools/testing/selftests/bpf/bpf_experimental.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 4a76c64e50ad..3db1578db2d9 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -3,6 +3,8 @@
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_core_read.h>
 
+#define __contains(name, node) __attribute__((btf_decl_tag("contains:" #name ":" #node)))
+
 /* Description
  *	Allocates a local kptr of type represented by 'local_type_id' in program
  *	BTF. User may use the bpf_core_type_id_local macro to pass the type ID
-- 
2.38.1

[PATCH bpf-next v3 24/24] selftests/bpf: Add BPF linked list API tests

[Kumar Kartikeya Dwivedi]

Include various tests covering the success and failure cases. Also, run
the success cases at runtime to verify correctness of linked list
manipulation routines, in addition to ensuring successful verification.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/helpers.c                          |   5 +-
 tools/testing/selftests/bpf/DENYLIST.s390x    |   1 +
 .../selftests/bpf/prog_tests/linked_list.c    |  79 +++++
 .../testing/selftests/bpf/progs/linked_list.c | 330 ++++++++++++++++++
 4 files changed, 414 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/linked_list.c
 create mode 100644 tools/testing/selftests/bpf/progs/linked_list.c

diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index e6945ce7e296..f4ff8de1a6d7 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1839,7 +1839,10 @@ static const struct btf_kfunc_id_set generic_kfunc_set = {
 
 static int __init kfunc_init(void)
 {
-	return register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &generic_kfunc_set);
+	int ret;
+
+	ret = register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &generic_kfunc_set);
+	return ret ?: register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS, &generic_kfunc_set);
 }
 
 late_initcall(kfunc_init);
diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x
index be4e3d47ea3e..072243af93b0 100644
--- a/tools/testing/selftests/bpf/DENYLIST.s390x
+++ b/tools/testing/selftests/bpf/DENYLIST.s390x
@@ -33,6 +33,7 @@ ksyms_module                             # test_ksyms_module__open_and_load unex
 ksyms_module_libbpf                      # JIT does not support calling kernel function                                (kfunc)
 ksyms_module_lskel                       # test_ksyms_module_lskel__open_and_load unexpected error: -9                 (?)
 libbpf_get_fd_by_id_opts                 # failed to attach: ERROR: strerror_r(-524)=22                                (trampoline)
+linked_list				 # JIT does not support calling kernel function                                (kfunc)
 lookup_key                               # JIT does not support calling kernel function                                (kfunc)
 lru_bug                                  # prog 'printk': failed to auto-attach: -524
 map_kptr                                 # failed to open_and_load program: -524 (trampoline)
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_list.c b/tools/testing/selftests/bpf/prog_tests/linked_list.c
new file mode 100644
index 000000000000..a017bc1b7b0a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/linked_list.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "linked_list.skel.h"
+
+static void test_linked_list_success(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	struct linked_list *skel;
+	int key = 0, ret;
+	char buf[32];
+
+	skel = linked_list__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "linked_list__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_push_pop), &opts);
+	ASSERT_OK(ret, "map_list_push_pop");
+	ASSERT_OK(opts.retval, "map_list_push_pop retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop), &opts);
+	ASSERT_OK(ret, "global_list_push_pop");
+	ASSERT_OK(opts.retval, "global_list_push_pop retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop_unclean), &opts);
+	ASSERT_OK(ret, "global_list_push_pop_unclean");
+	ASSERT_OK(opts.retval, "global_list_push_pop_unclean retval");
+
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.data_A), &key, buf, 0),
+		  "check_and_free_fields");
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.array_map), &key, buf, 0),
+		  "check_and_free_fields");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_push_pop_multiple), &opts);
+	ASSERT_OK(ret, "map_list_push_pop_multiple");
+	ASSERT_OK(opts.retval, "map_list_push_pop_multiple retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop_multiple), &opts);
+	ASSERT_OK(ret, "global_list_push_pop_multiple");
+	ASSERT_OK(opts.retval, "global_list_push_pop_multiple retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop_multiple_unclean), &opts);
+	ASSERT_OK(ret, "global_list_push_pop_multiple_unclean");
+	ASSERT_OK(opts.retval, "global_list_push_pop_multiple_unclean retval");
+
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.data_A), &key, buf, 0),
+		  "check_and_free_fields");
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.array_map), &key, buf, 0),
+		  "check_and_free_fields");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_in_list), &opts);
+	ASSERT_OK(ret, "map_list_in_list");
+	ASSERT_OK(opts.retval, "map_list_in_list retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_in_list), &opts);
+	ASSERT_OK(ret, "global_list_in_list");
+	ASSERT_OK(opts.retval, "global_list_in_list retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_in_list_unclean), &opts);
+	ASSERT_OK(ret, "global_list_in_list_unclean");
+	ASSERT_OK(opts.retval, "global_list_in_list_unclean retval");
+
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.data_A), &key, buf, 0),
+		  "check_and_free_fields");
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.array_map), &key, buf, 0),
+		  "check_and_free_fields");
+
+	linked_list__destroy(skel);
+}
+
+void test_linked_list(void)
+{
+	test_linked_list_success();
+}
diff --git a/tools/testing/selftests/bpf/progs/linked_list.c b/tools/testing/selftests/bpf/progs/linked_list.c
new file mode 100644
index 000000000000..eed0b2c1eb4a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_list.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+struct bar {
+	struct bpf_list_node node;
+	int data;
+};
+
+struct foo {
+	struct bpf_list_node node;
+	struct bpf_list_head head __contains(bar, node);
+	struct bpf_spin_lock lock;
+	int data;
+};
+
+struct map_value {
+	struct bpf_list_head head __contains(foo, node);
+	struct bpf_spin_lock lock;
+	int data;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} array_map SEC(".maps");
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+
+private(A) static struct bpf_spin_lock glock;
+private(A) static struct bpf_list_head ghead __contains(foo, node);
+private(A) static struct bpf_list_head gghead __contains(foo, node);
+
+static __always_inline int list_push_pop(struct bpf_spin_lock *lock,
+					 struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 2;
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		bpf_obj_drop(f);
+		return 3;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		bpf_obj_drop(f);
+		return 4;
+	}
+
+
+	bpf_spin_lock(lock);
+	f->data = 42;
+	bpf_list_push_front(head, &f->node);
+	bpf_spin_unlock(lock);
+	if (leave_in_map)
+		return 0;
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 5;
+	f = container_of(n, struct foo, node);
+	if (f->data != 42) {
+		bpf_obj_drop(f);
+		return 6;
+	}
+
+	bpf_spin_lock(lock);
+	f->data = 13;
+	bpf_list_push_front(head, &f->node);
+	bpf_spin_unlock(lock);
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 7;
+	f = container_of(n, struct foo, node);
+	if (f->data != 13) {
+		bpf_obj_drop(f);
+		return 8;
+	}
+	bpf_obj_drop(f);
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		return 9;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		return 10;
+	}
+	return 0;
+}
+
+
+static __always_inline int list_push_pop_multiple(struct bpf_spin_lock *lock,
+						  struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct foo *f[8], *pf;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(f); i++) {
+		f[i] = bpf_obj_new(typeof(**f));
+		if (!f[i])
+			return 2;
+		f[i]->data = i;
+		bpf_spin_lock(lock);
+		bpf_list_push_front(head, &f[i]->node);
+		bpf_spin_unlock(lock);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(f); i++) {
+		bpf_spin_lock(lock);
+		n = bpf_list_pop_front(head);
+		bpf_spin_unlock(lock);
+		if (!n)
+			return 3;
+		pf = container_of(n, struct foo, node);
+		if (pf->data != (ARRAY_SIZE(f) - i - 1)) {
+			bpf_obj_drop(pf);
+			return 4;
+		}
+		bpf_spin_lock(lock);
+		bpf_list_push_back(head, &pf->node);
+		bpf_spin_unlock(lock);
+	}
+
+	if (leave_in_map)
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(f); i++) {
+		bpf_spin_lock(lock);
+		n = bpf_list_pop_back(head);
+		bpf_spin_unlock(lock);
+		if (!n)
+			return 5;
+		pf = container_of(n, struct foo, node);
+		if (pf->data != i) {
+			bpf_obj_drop(pf);
+			return 6;
+		}
+		bpf_obj_drop(pf);
+	}
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		return 7;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node));
+		return 8;
+	}
+	return 0;
+}
+
+static __always_inline int list_in_list(struct bpf_spin_lock *lock,
+					struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct bar *ba[8], *b;
+	struct foo *f;
+	int i;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 2;
+	for (i = 0; i < ARRAY_SIZE(ba); i++) {
+		b = bpf_obj_new(typeof(*b));
+		if (!b) {
+			bpf_obj_drop(f);
+			return 3;
+		}
+		b->data = i;
+		bpf_spin_lock(&f->lock);
+		bpf_list_push_back(&f->head, &b->node);
+		bpf_spin_unlock(&f->lock);
+	}
+
+	bpf_spin_lock(lock);
+	f->data = 42;
+	bpf_list_push_front(head, &f->node);
+	bpf_spin_unlock(lock);
+
+	if (leave_in_map)
+		return 0;
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 4;
+	f = container_of(n, struct foo, node);
+	if (f->data != 42) {
+		bpf_obj_drop(f);
+		return 5;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(ba); i++) {
+		bpf_spin_lock(&f->lock);
+		n = bpf_list_pop_front(&f->head);
+		bpf_spin_unlock(&f->lock);
+		if (!n) {
+			bpf_obj_drop(f);
+			return 6;
+		}
+		b = container_of(n, struct bar, node);
+		if (b->data != i) {
+			bpf_obj_drop(f);
+			bpf_obj_drop(b);
+			return 7;
+		}
+		bpf_obj_drop(b);
+	}
+	bpf_spin_lock(&f->lock);
+	n = bpf_list_pop_front(&f->head);
+	bpf_spin_unlock(&f->lock);
+	if (n) {
+		bpf_obj_drop(f);
+		bpf_obj_drop(container_of(n, struct bar, node));
+		return 8;
+	}
+	bpf_obj_drop(f);
+	return 0;
+}
+
+SEC("tc")
+int map_list_push_pop(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return list_push_pop(&v->lock, &v->head, false);
+}
+
+SEC("tc")
+int global_list_push_pop(void *ctx)
+{
+	return list_push_pop(&glock, &ghead, false);
+}
+
+SEC("tc")
+int global_list_push_pop_unclean(void *ctx)
+{
+	return list_push_pop(&glock, &gghead, true);
+}
+
+SEC("tc")
+int map_list_push_pop_multiple(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return list_push_pop_multiple(&v->lock, &v->head, false);
+}
+
+SEC("tc")
+int global_list_push_pop_multiple(void *ctx)
+{
+	return list_push_pop_multiple(&glock, &ghead, false);
+}
+
+SEC("tc")
+int global_list_push_pop_multiple_unclean(void *ctx)
+{
+	return list_push_pop_multiple(&glock, &gghead, true);
+}
+
+SEC("tc")
+int map_list_in_list(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return list_in_list(&v->lock, &v->head, false);
+}
+
+SEC("tc")
+int global_list_in_list(void *ctx)
+{
+	return list_in_list(&glock, &ghead, false);
+}
+
+SEC("tc")
+int global_list_in_list_unclean(void *ctx)
+{
+	return list_in_list(&glock, &gghead, true);
+}
+
+char _license[] SEC("license") = "GPL";
-- 
2.38.1

Re: [PATCH bpf-next v3 19/24] bpf: Introduce bpf_obj_new

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2046 bytes --]

Hi Kumar,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 3a07dcf8f57b9a90b1c07df3e9091fd04baa3036]

url:    https://github.com/intel-lab-lkp/linux/commits/Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
base:   3a07dcf8f57b9a90b1c07df3e9091fd04baa3036
patch link:    https://lore.kernel.org/r/20221102202658.963008-20-memxor%40gmail.com
patch subject: [PATCH bpf-next v3 19/24] bpf: Introduce bpf_obj_new
config: um-i386_defconfig
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/d98025b455ba5e520822adb5f8c8bd8c47d6df37
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
        git checkout d98025b455ba5e520822adb5f8c8bd8c47d6df37
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   /usr/bin/ld: warning: arch/x86/um/checksum_32.o: missing .note.GNU-stack section implies executable stack
   /usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
   /usr/bin/ld: warning: .tmp_vmlinux.kallsyms1 has a LOAD segment with RWX permissions
   /usr/bin/ld: kernel/bpf/core.o: in function `bpf_global_ma_init':
>> kernel/bpf/core.c:2757: undefined reference to `bpf_mem_alloc_init'
   collect2: error: ld returned 1 exit status


vim +2757 kernel/bpf/core.c

  2752	
  2753	static int __init bpf_global_ma_init(void)
  2754	{
  2755		int ret;
  2756	
> 2757		ret = bpf_mem_alloc_init(&bpf_global_ma, 0, false);
  2758		bpf_global_ma_set = !ret;
  2759		return ret;
  2760	}
  2761	late_initcall(bpf_global_ma_init);
  2762	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 42218 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/um 6.0.0 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-8) 11.3.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110300
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23900
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23900
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=128
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_SHOW=y
# end of IRQ subsystem

CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_BPF=y

#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CGROUPS=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
# CONFIG_MEMCG is not set
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_EMBEDDED is not set

#
# Kernel Performance Events And Counters
#
# end of Kernel Performance Events And Counters

# CONFIG_PROFILING is not set
# end of General setup

#
# UML-specific options
#
CONFIG_UML=y
CONFIG_MMU=y
CONFIG_NO_IOMEM=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HZ=100
CONFIG_NR_CPUS=1
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y

#
# Host processor type and features
#
# CONFIG_M486SX is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
CONFIG_M686=y
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=5
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=6
CONFIG_IA32_FEAT_CTL=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_CPU_SUP_VORTEX_32=y
# end of Host processor type and features

CONFIG_UML_X86=y
CONFIG_X86_32=y
CONFIG_3_LEVEL_PGTABLES=y
CONFIG_ARCH_HAS_SC_SIGNALS=y
CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
CONFIG_GENERIC_HWEIGHT=y
# CONFIG_STATIC_LINK is not set
CONFIG_LD_SCRIPT_DYN=y
CONFIG_LD_SCRIPT_DYN_RPATH=y
CONFIG_HOSTFS=y
CONFIG_MCONSOLE=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_KERNEL_STACK_ORDER=1
# CONFIG_MMAPPER is not set
CONFIG_PGTABLE_LEVELS=3
# CONFIG_UML_TIME_TRAVEL_SUPPORT is not set
# end of UML-specific options

#
# UML Character Devices
#
CONFIG_STDERR_CONSOLE=y
CONFIG_SSL=y
CONFIG_NULL_CHAN=y
CONFIG_PORT_CHAN=y
CONFIG_PTY_CHAN=y
CONFIG_TTY_CHAN=y
CONFIG_XTERM_CHAN=y
CONFIG_XTERM_CHAN_DEFAULT_EMULATOR="xterm"
CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
CONFIG_CON_CHAN="pts"
CONFIG_SSL_CHAN="pts"
CONFIG_UML_SOUND=m
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_HOSTAUDIO=m
# end of UML Character Devices

#
# UML Network Devices
#
CONFIG_UML_NET=y
CONFIG_UML_NET_ETHERTAP=y
CONFIG_UML_NET_TUNTAP=y
CONFIG_UML_NET_SLIP=y
CONFIG_UML_NET_DAEMON=y
CONFIG_UML_NET_DAEMON_DEFAULT_SOCK="/tmp/uml.ctl"
# CONFIG_UML_NET_VECTOR is not set
# CONFIG_UML_NET_VDE is not set
CONFIG_UML_NET_MCAST=y
# CONFIG_UML_NET_PCAP is not set
CONFIG_UML_NET_SLIRP=y
# end of UML Network Devices

# CONFIG_VIRTIO_UML is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_PM_SLEEP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_USERSPACE_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_LTO_NONE=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_ARCH_NO_PREEMPT=y
CONFIG_ARCH_EPHEMERAL_INODES=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y

#
# GCOV-based kernel profiling
#
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_ICQ=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_DEV_THROTTLING is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLK_PM=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=m
# CONFIG_BFQ_GROUP_IOSCHED is not set
# end of IO Schedulers

CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_SWAP=y
# CONFIG_ZSWAP is not set

#
# SLAB allocator options
#
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
CONFIG_COMPAT_BRK=y
CONFIG_FLATMEM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CMA is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set

#
# GUP_TEST needs to have DEBUG_FS enabled
#
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_MPTCP is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_MCTP is not set
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_DEVICES=y
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

# CONFIG_CONNECTOR is not set

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_BLK_DEV_UBD=y
# CONFIG_BLK_DEV_UBD_SYNC is not set
CONFIG_BLK_DEV_COW_COMMON=y
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_UBLK is not set

#
# NVME Support
#
# CONFIG_NVME_TCP is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ECHO is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support

# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
CONFIG_DUMMY=m
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_ALACRITECH=y
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AQUANTIA=y
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
CONFIG_NET_VENDOR_CAVIUM=y
CONFIG_NET_VENDOR_CORTINA=y
CONFIG_NET_VENDOR_DAVICOM=y
CONFIG_NET_VENDOR_ENGLEDER=y
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
CONFIG_NET_VENDOR_GOOGLE=y
CONFIG_NET_VENDOR_HUAWEI=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_NET_VENDOR_WANGXUN=y
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
CONFIG_NET_VENDOR_MICROCHIP=y
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MICROSOFT=y
CONFIG_NET_VENDOR_NI=y
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NET_VENDOR_NETRONOME=y
CONFIG_NET_VENDOR_8390=y
CONFIG_NET_VENDOR_PENSANDO=y
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
CONFIG_NET_VENDOR_SOLARFLARE=y
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_SYNOPSYS=y
CONFIG_NET_VENDOR_VERTEXCOM=y
CONFIG_NET_VENDOR_VIA=y
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_PHYLIB is not set
# CONFIG_PSE_CONTROLLER is not set
# CONFIG_MDIO_DEVICE is not set

#
# PCS device drivers
#
# end of PCS device drivers

CONFIG_PPP=m
# CONFIG_PPP_BSDCOMP is not set
# CONFIG_PPP_DEFLATE is not set
# CONFIG_PPP_FILTER is not set
# CONFIG_PPP_MPPE is not set
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPPOE is not set
# CONFIG_PPP_ASYNC is not set
# CONFIG_PPP_SYNC_TTY is not set
CONFIG_SLIP=m
CONFIG_SLHC=m
# CONFIG_SLIP_COMPRESSED is not set
# CONFIG_SLIP_SMART is not set
# CONFIG_SLIP_MODE_SLIP6 is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
CONFIG_WLAN_VENDOR_ATMEL=y
CONFIG_WLAN_VENDOR_BROADCOM=y
CONFIG_WLAN_VENDOR_CISCO=y
CONFIG_WLAN_VENDOR_INTEL=y
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
CONFIG_WLAN_VENDOR_MARVELL=y
CONFIG_WLAN_VENDOR_MEDIATEK=y
CONFIG_WLAN_VENDOR_MICROCHIP=y
CONFIG_WLAN_VENDOR_PURELIFI=y
CONFIG_WLAN_VENDOR_RALINK=y
CONFIG_WLAN_VENDOR_REALTEK=y
CONFIG_WLAN_VENDOR_RSI=y
CONFIG_WLAN_VENDOR_SILABS=y
CONFIG_WLAN_VENDOR_ST=y
CONFIG_WLAN_VENDOR_TI=y
CONFIG_WLAN_VENDOR_ZYDAS=y
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_NET_FAILOVER is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
CONFIG_INPUT_VIVALDIFMAP=y

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_USERIO is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=32
CONFIG_LDISC_AUTOLOAD=y
# CONFIG_N_GSM is not set
# CONFIG_NULL_TTY is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
CONFIG_HW_RANDOM=y
CONFIG_UML_RANDOM=y
# CONFIG_NSC_GPIO is not set
CONFIG_DEVMEM=y
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices

#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support

# CONFIG_I3C is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

# CONFIG_PINCTRL is not set
# CONFIG_GPIOLIB is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

#
# Graphics support
#
# end of Graphics support

CONFIG_SOUND_OSS_CORE_PRECLAIM=y

#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_CMEDIA is not set
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_VRC2 is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
CONFIG_HID_ITE=y
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
CONFIG_HID_REDRAGON=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PXRC is not set
# CONFIG_HID_RAZER is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_TOPRE is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_ALPS is not set
# end of Special HID drivers
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options

# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_MENU=y
# CONFIG_VDPA is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_COMMON_CLK is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
# end of Clock Source drivers

# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

#
# Remoteproc drivers
#
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# end of Rpmsg drivers

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
# end of IRQ chip support

# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# end of PHY drivers for Broadcom platforms
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

# CONFIG_DAX is not set
# CONFIG_NVMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=m
CONFIG_AUTOFS_FS=m
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_MEMFD_CREATE=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_SMB_SERVER is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# CONFIG_RANDSTRUCT_PERFORMANCE is not set
# end of Kernel hardening options
# end of Security options

CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
# end of Crypto core or helper

#
# Public-key cryptography
#
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ARIA is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SM4_GENERIC is not set
# CONFIG_CRYPTO_TWOFISH is not set
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CFB is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_OFB is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set
# CONFIG_CRYPTO_ECHAINIV is not set
# CONFIG_CRYPTO_ESSIV is not set
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
# CONFIG_CRYPTO_BLAKE2B is not set
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
# CONFIG_CRYPTO_VMAC is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XXHASH is not set
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set
# end of Compression

#
# Random number generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
# end of Random number generation

#
# Userspace interface
#
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# end of Userspace interface

CONFIG_CRYPTO_HW=y

#
# Certificates for signature checking
#
# end of Certificates for signature checking

#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_ARCH_HAS_STRNCPY_FROM_USER=y
CONFIG_ARCH_HAS_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA1=y
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
CONFIG_NO_DMA=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_DQL=y
CONFIG_NLATTR=y
# CONFIG_IRQ_POLL is not set
CONFIG_SBITMAP=y
# end of Library routines

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_NONE is not set
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_DEBUG_INFO_COMPRESSED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
# CONFIG_DEBUG_FS is not set
# CONFIG_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_HAVE_DEBUG_BUGVERBOSE=y

#
# Debug kernel data structures
#
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_LATENCYTOP is not set
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_ENABLE_DEFAULT_TRACERS is not set
# CONFIG_TRACER_SNAPSHOT is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_SYNTH_EVENTS is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SAMPLES is not set

#
# um Debugging
#
# CONFIG_GPROF is not set
CONFIG_EARLY_PRINTK=y
# end of um Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

Re: [PATCH bpf-next v3 19/24] bpf: Introduce bpf_obj_new

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1662 bytes --]

Hi Kumar,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 3a07dcf8f57b9a90b1c07df3e9091fd04baa3036]

url:    https://github.com/intel-lab-lkp/linux/commits/Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
base:   3a07dcf8f57b9a90b1c07df3e9091fd04baa3036
patch link:    https://lore.kernel.org/r/20221102202658.963008-20-memxor%40gmail.com
patch subject: [PATCH bpf-next v3 19/24] bpf: Introduce bpf_obj_new
config: arc-defconfig
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/d98025b455ba5e520822adb5f8c8bd8c47d6df37
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
        git checkout d98025b455ba5e520822adb5f8c8bd8c47d6df37
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arc-elf-ld: kernel/bpf/core.o: in function `bpf_global_ma_init':
>> core.c:(.init.text+0xe): undefined reference to `bpf_mem_alloc_init'
>> arc-elf-ld: core.c:(.init.text+0xe): undefined reference to `bpf_mem_alloc_init'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 39597 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/arc 6.0.0 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="arc-elf-gcc (GCC) 12.1.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=120100
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23800
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23800
CONFIG_LLD_VERSION=0
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_LZMA is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
# end of IRQ subsystem

CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_BPF=y

#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem

CONFIG_PREEMPT_BUILD=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_EXPERT=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_KCMP is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_ARC=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_GENERIC_CSUM=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_MMU=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_STACKTRACE_SUPPORT=y

#
# ARC Architecture Configuration
#

#
# ARC Platform/SoC/Board
#
# CONFIG_ARC_PLAT_TB10X is not set
# CONFIG_ARC_PLAT_AXS10X is not set
# CONFIG_ARC_SOC_HSDK is not set
# end of ARC Platform/SoC/Board

# CONFIG_ISA_ARCOMPACT is not set
CONFIG_ISA_ARCV2=y

#
# ARC CPU Configuration
#
CONFIG_ARC_CPU_HS=y
CONFIG_ARC_TUNE_MCPU=""
# CONFIG_CPU_BIG_ENDIAN is not set
CONFIG_SMP=y
CONFIG_NR_CPUS=4
# CONFIG_ARC_SMP_HALT_ON_RESET is not set
CONFIG_ARC_MCIP=y
CONFIG_ARC_CACHE=y
CONFIG_ARC_CACHE_LINE_SHIFT=6
CONFIG_ARC_HAS_ICACHE=y
CONFIG_ARC_HAS_DCACHE=y
CONFIG_ARC_CACHE_PAGES=y
# CONFIG_ARC_HAS_ICCM is not set
# CONFIG_ARC_HAS_DCCM is not set
CONFIG_ARC_MMU_V4=y
CONFIG_ARC_PAGE_SIZE_8K=y
# CONFIG_ARC_PAGE_SIZE_16K is not set
# CONFIG_ARC_PAGE_SIZE_4K is not set
CONFIG_PGTABLE_LEVELS=2
# CONFIG_ARC_FPU_SAVE_RESTORE is not set
CONFIG_ARC_HAS_LLSC=y
CONFIG_ARC_HAS_SWAPE=y
CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS=y
CONFIG_ARC_HAS_LL64=y
CONFIG_ARC_HAS_DIV_REM=y
CONFIG_ARC_HAS_ACCL_REGS=y
CONFIG_ARC_DSP_NONE=y
# CONFIG_ARC_DSP_KERNEL is not set
# CONFIG_ARC_DSP_USERSPACE is not set
# CONFIG_ARC_DSP_AGU_USERSPACE is not set
# CONFIG_ARC_IRQ_NO_AUTOSAVE is not set
# CONFIG_ARC_LPB_DISABLE is not set
# end of ARC CPU Configuration

CONFIG_LINUX_LINK_BASE=0x80000000
CONFIG_LINUX_RAM_BASE=0x80000000
# CONFIG_HIGHMEM is not set
# CONFIG_ARC_HAS_PAE40 is not set
CONFIG_ARC_KVADDR_SIZE=256
CONFIG_ARC_CURR_IN_REG=y
CONFIG_HZ=100
# CONFIG_ARC_METAWARE_HLINK is not set
CONFIG_ARC_DBG=y
CONFIG_ARC_DW2_UNWIND=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
# end of ARC Architecture Configuration

CONFIG_ARCH_FORCE_MAX_ORDER=11
# CONFIG_PM is not set

#
# General architecture-dependent options
#
CONFIG_KPROBES=y
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_COMPAT_32BIT_TIME=y

#
# GCOV-based kernel profiling
#
# end of GCOV-based kernel profiling
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
# CONFIG_MODULE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers

CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
# CONFIG_SWAP is not set

#
# SLAB allocator options
#
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_FLATMEM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_TRANSPARENT_HUGEPAGE is not set
# CONFIG_CMA is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_PERCPU_STATS is not set

#
# GUP_TEST needs to have DEBUG_FS enabled
#
CONFIG_ARCH_HAS_PTE_SPECIAL=y
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=y
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=y
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=y
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_MPTCP is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_DROP_MONITOR is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_MCTP is not set
# CONFIG_WIRELESS is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
CONFIG_GRO_CELLS=y
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
# CONFIG_PCCARD is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_DEVTMPFS_SAFE is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

# CONFIG_CONNECTOR is not set

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set

#
# NVME Support
#
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ECHO is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support

# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ETHERNET is not set
# CONFIG_PHYLIB is not set
# CONFIG_PSE_CONTROLLER is not set
# CONFIG_MDIO_DEVICE is not set

#
# PCS device drivers
#
# end of PCS device drivers

# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_NET_FAILOVER is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_16550A_VARIANTS=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_OF_PLATFORM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NULL_TTY is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_DEVMEM=y
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices

#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support

# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

# CONFIG_PINCTRL is not set
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TQMX86 is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_DRM_DEBUG_MODESET_LOCK is not set

#
# ARM devices
#
# end of ARM devices

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# end of Graphics support

# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options

# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_MENU=y
# CONFIG_VIRTIO_MMIO is not set
# CONFIG_VDPA is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_ARC_TIMERS=y
CONFIG_ARC_TIMERS_64BIT=y
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers

# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
# CONFIG_AL_FIC is not set
# CONFIG_XILINX_INTC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# end of Performance monitor support

# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

# CONFIG_DAX is not set
# CONFIG_NVMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
# CONFIG_EXT2_FS_POSIX_ACL is not set
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_MEMFD_CREATE=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems

# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_SMB_SERVER is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

CONFIG_RANDSTRUCT_NONE=y
# end of Kernel hardening options
# end of Security options

CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
# end of Crypto core or helper

#
# Public-key cryptography
#
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ARIA is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SM4_GENERIC is not set
# CONFIG_CRYPTO_TWOFISH is not set
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CFB is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_OFB is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set
# CONFIG_CRYPTO_ECHAINIV is not set
# CONFIG_CRYPTO_ESSIV is not set
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
# CONFIG_CRYPTO_BLAKE2B is not set
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
# CONFIG_CRYPTO_VMAC is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XXHASH is not set
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set
# end of Compression

#
# Random number generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
# end of Random number generation

#
# Userspace interface
#
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# end of Userspace interface

CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_CCREE is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set

#
# Certificates for signature checking
#
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA1=y
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_DMA=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_DMA_COHERENT_POOL=y
CONFIG_DMA_DIRECT_REMAP=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_FORCE_NR_CPUS is not set
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
# CONFIG_IRQ_POLL is not set
CONFIG_LIBFDT=y
CONFIG_SBITMAP=y
# end of Library routines

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
CONFIG_SYMBOLIC_ERRNAME=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO_NONE=y
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set
# CONFIG_DEBUG_PREEMPT is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_LATENCYTOP is not set
CONFIG_NOP_TRACER=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_PREEMPT_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_ENABLE_DEFAULT_TRACERS is not set
# CONFIG_FTRACE_SYSCALLS is not set
# CONFIG_TRACER_SNAPSHOT is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
CONFIG_KPROBE_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_SYNTH_EVENTS is not set
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_RV is not set
# CONFIG_SAMPLES is not set

#
# arc Debugging
#
# CONFIG_16KSTACKS is not set
# end of arc Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

Re: [PATCH bpf-next v3 09/24] bpf: Support bpf_list_head in map values

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 4135 bytes --]

Hi Kumar,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 3a07dcf8f57b9a90b1c07df3e9091fd04baa3036]

url:    https://github.com/intel-lab-lkp/linux/commits/Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
base:   3a07dcf8f57b9a90b1c07df3e9091fd04baa3036
patch link:    https://lore.kernel.org/r/20221102202658.963008-10-memxor%40gmail.com
patch subject: [PATCH bpf-next v3 09/24] bpf: Support bpf_list_head in map values
config: arm-randconfig-r006-20221103
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/5fe3a9c8f5a97048b5510a004e284e1cca5341a6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kumar-Kartikeya-Dwivedi/Local-kptrs-BPF-linked-lists/20221103-042958
        git checkout 5fe3a9c8f5a97048b5510a004e284e1cca5341a6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> kernel/bpf/helpers.c:1715:2: error: call to __compiletime_assert_517 declared with 'error' attribute: BUILD_BUG_ON failed: sizeof(struct bpf_list_head) != sizeof(struct list_head)
           BUILD_BUG_ON(sizeof(struct bpf_list_head) != sizeof(struct list_head));
           ^
   include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
           BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
           ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:357:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:345:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:338:4: note: expanded from macro '__compiletime_assert'
                           prefix ## suffix();                             \
                           ^
   <scratch space>:81:1: note: expanded from here
   __compiletime_assert_517
   ^
   1 error generated.


vim +/error +1715 kernel/bpf/helpers.c

  1708	
  1709	void bpf_list_head_free(const struct btf_field *field, void *list_head,
  1710				struct bpf_spin_lock *spin_lock)
  1711	{
  1712		struct list_head *head = list_head, *orig_head = head;
  1713		unsigned long flags;
  1714	
> 1715		BUILD_BUG_ON(sizeof(struct bpf_list_head) != sizeof(struct list_head));
  1716		BUILD_BUG_ON(__alignof__(struct bpf_list_head) != __alignof__(struct list_head));
  1717	
  1718		/* __bpf_spin_lock_irqsave cannot be used here, as we may take a spin
  1719		 * lock again when we call bpf_obj_free_fields in the loop, and it will
  1720		 * overwrite the per-CPU local_irq_save state.
  1721		 */
  1722		local_irq_save(flags);
  1723		__bpf_spin_lock(spin_lock);
  1724		if (!head->next || list_empty(head))
  1725			goto unlock;
  1726		head = head->next;
  1727		while (head != orig_head) {
  1728			void *obj = head;
  1729	
  1730			obj -= field->list_head.node_offset;
  1731			head = head->next;
  1732			/* TODO: Rework later */
  1733			kfree(obj);
  1734		}
  1735	unlock:
  1736		INIT_LIST_HEAD(head);
  1737		__bpf_spin_unlock(spin_lock);
  1738		local_irq_restore(flags);
  1739	}
  1740	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 159136 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 6.0.0 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 16.0.0 (git://gitmirror/llvm_project 791a7ae1ba3efd6bca96338e10ffde557ba83920)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=160000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=160000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=160000
CONFIG_RUST_IS_AVAILABLE=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_COMPILE_TEST=y
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_TIME_KUNIT_TEST=m
CONFIG_CONTEXT_TRACKING=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_CONTEXT_TRACKING_USER=y
# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
# CONFIG_TICK_CPU_ACCOUNTING is not set
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_PSI=y
# CONFIG_PSI_DEFAULT_DISABLED is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_FORCE_TASKS_RCU=y
CONFIG_TASKS_RCU=y
# CONFIG_FORCE_TASKS_RUDE_RCU is not set
CONFIG_FORCE_TASKS_TRACE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_TASKS_TRACE_RCU_READ_MB=y
# end of RCU Subsystem

# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_PRINTK_INDEX=y
CONFIG_GENERIC_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_FAVOR_DYNMODS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
CONFIG_CGROUP_DEBUG=y
CONFIG_SOCK_CGROUP_DATA=y
# CONFIG_SCHED_AUTOGROUP is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_BOOT_CONFIG=y
CONFIG_BOOT_CONFIG_EMBED=y
CONFIG_BOOT_CONFIG_EMBED_FILE=""
# CONFIG_INITRAMFS_PRESERVE_MTIME is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_HAVE_UID16=y
CONFIG_EXPERT=y
# CONFIG_MULTIUSER is not set
# CONFIG_SGETMASK_SYSCALL is not set
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_IO_URING is not set
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
CONFIG_DEBUG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PC104=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters

CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_ARCH_HAS_BANDGAP=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2

#
# System Type
#
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=14
CONFIG_ARCH_MULTIPLATFORM=y

#
# Platform selection
#

#
# CPU Core family selection
#
CONFIG_ARCH_MULTI_V6=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_MULTI_V6_V7=y
# end of Platform selection

CONFIG_ARCH_ASPEED=y
# CONFIG_MACH_ASPEED_G5 is not set
# CONFIG_ARCH_BCM is not set
# CONFIG_ARCH_MXC is not set
CONFIG_ARCH_OMAP=y
CONFIG_MACH_OMAP_GENERIC=y

#
# TI OMAP/AM/DM/DRA Family
#
CONFIG_OMAP_HWMOD=y
CONFIG_ARCH_OMAP2=y
CONFIG_ARCH_OMAP2PLUS=y

#
# TI OMAP2/3/4 Specific Features
#
# CONFIG_ARCH_OMAP2PLUS_TYPICAL is not set
CONFIG_SOC_HAS_OMAP2_SDRC=y

#
# OMAP Core Type
#
CONFIG_SOC_OMAP2420=y
# CONFIG_SOC_OMAP2430 is not set

#
# OMAP Legacy Platform Data Board Type
#
CONFIG_MACH_OMAP2_TUSB6010=y
CONFIG_MACH_NOKIA_N810=y
CONFIG_MACH_NOKIA_N810_WIMAX=y
CONFIG_MACH_NOKIA_N8X0=y
# end of TI OMAP2/3/4 Specific Features
# end of TI OMAP/AM/DM/DRA Family

# CONFIG_ARCH_OXNAS is not set
# CONFIG_ARCH_S3C64XX is not set
# CONFIG_ARCH_INTEGRATOR is not set
# CONFIG_ARCH_REALVIEW is not set
CONFIG_ARCH_VT8500=y
CONFIG_ARCH_WM8750=y

#
# Processor Type
#
CONFIG_CPU_V6=y
CONFIG_CPU_V6K=y
CONFIG_CPU_THUMB_CAPABLE=y
CONFIG_CPU_32v6=y
CONFIG_CPU_32v6K=y
CONFIG_CPU_ABRT_EV6=y
CONFIG_CPU_PABRT_V6=y
CONFIG_CPU_CACHE_V6=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_TLB_V6=y
CONFIG_CPU_HAS_ASID=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y

#
# Processor Features
#
CONFIG_ARM_THUMB=y
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_CPU_ICACHE_DISABLE is not set
CONFIG_CPU_DCACHE_DISABLE=y
CONFIG_CPU_BPREDICT_DISABLE=y
CONFIG_KUSER_HELPERS=y
CONFIG_OUTER_CACHE=y
CONFIG_OUTER_CACHE_SYNC=y
CONFIG_MIGHT_HAVE_CACHE_L2X0=y
CONFIG_CACHE_L2X0=y
CONFIG_PL310_ERRATA_588369=y
CONFIG_PL310_ERRATA_727915=y
# CONFIG_PL310_ERRATA_753970 is not set
CONFIG_PL310_ERRATA_769419=y
CONFIG_ARM_L1_CACHE_SHIFT=5
# CONFIG_ARM_DMA_MEM_BUFFERABLE is not set
CONFIG_ARM_HEAVY_MB=y
CONFIG_ARM_ERRATA_326103=y
CONFIG_ARM_ERRATA_411920=y
# CONFIG_ARM_ERRATA_364296 is not set
# end of System Type

#
# Bus support
#
# end of Bus support

#
# Kernel Features
#
CONFIG_IRQSTACKS=y
# CONFIG_VMSPLIT_3G is not set
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
CONFIG_VMSPLIT_1G=y
CONFIG_PAGE_OFFSET=0x40000000
CONFIG_ARCH_NR_GPIO=1024
CONFIG_HZ_FIXED=0
# CONFIG_HZ_100 is not set
# CONFIG_HZ_200 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_AEABI=y
CONFIG_OABI_COMPAT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
# CONFIG_HIGHMEM is not set
# CONFIG_CPU_SW_DOMAIN_PAN is not set
CONFIG_ARM_MODULE_PLTS=y
CONFIG_ARCH_FORCE_MAX_ORDER=11
CONFIG_ALIGNMENT_TRAP=y
CONFIG_UACCESS_WITH_MEMCPY=y
CONFIG_PARAVIRT=y
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_CC_HAVE_STACKPROTECTOR_TLS=y
# end of Kernel Features

#
# Boot options
#
CONFIG_USE_OF=y
# CONFIG_ATAGS is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
CONFIG_CMDLINE=""
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_AUTO_ZRELADDR=y
# CONFIG_EFI is not set
# end of Boot options

#
# CPU Power Management
#

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=m
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m

#
# CPU frequency scaling drivers
#
# CONFIG_CPUFREQ_DT is not set
CONFIG_ARM_BRCMSTB_AVS_CPUFREQ=y
CONFIG_ARM_MEDIATEK_CPUFREQ_HW=m
# CONFIG_ARM_OMAP2PLUS_CPUFREQ is not set
# CONFIG_ARM_QCOM_CPUFREQ_HW is not set
# CONFIG_ARM_RASPBERRYPI_CPUFREQ is not set
CONFIG_ARM_SCMI_CPUFREQ=m
CONFIG_ARM_TI_CPUFREQ=y
# CONFIG_QORIQ_CPUFREQ is not set
# end of CPU Frequency scaling

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of CPU Power Management

#
# Floating point emulation
#

#
# At least one emulation must be selected
#
CONFIG_FPE_NWFPE=y
CONFIG_FPE_NWFPE_XP=y
# CONFIG_FPE_FASTFPE is not set
# CONFIG_VFP is not set
# end of Floating point emulation

#
# Power management options
#
# CONFIG_SUSPEND is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_APM_EMULATION is not set
CONFIG_PM_CLK=y
CONFIG_PM_GENERIC_DOMAINS=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
CONFIG_PM_GENERIC_DOMAINS_OF=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
# end of Power management options

CONFIG_AS_VFP_VMRS_FPINST=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_KEEPINITRD=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_SECCOMP=y
CONFIG_HAVE_STACKPROTECTOR=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_LTO_NONE=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
# CONFIG_STRICT_KERNEL_RWX is not set
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_LOCK_EVENT_COUNTS=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_HAVE_ARCH_PFN_VALID=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
# CONFIG_BLOCK is not set
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_ELF_FDPIC=y
CONFIG_ELFCORE=y
CONFIG_BINFMT_SCRIPT=m
CONFIG_ARCH_HAS_BINFMT_FLAT=y
# CONFIG_BINFMT_FLAT is not set
CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_COREDUMP is not set
# end of Executable file formats

#
# Memory Management options
#

#
# SLAB allocator options
#
# CONFIG_SLAB is not set
# CONFIG_SLUB is not set
CONFIG_SLOB=y
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_ARCH_KEEP_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_NEED_PER_CPU_KM=y
CONFIG_CMA=y
CONFIG_CMA_DEBUG=y
CONFIG_CMA_DEBUGFS=y
CONFIG_CMA_SYSFS=y
CONFIG_CMA_AREAS=7
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_PERCPU_STATS is not set
CONFIG_GUP_TEST=y
CONFIG_USERFAULTFD=y

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

# CONFIG_NET is not set

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_DOMAINS_GENERIC=y
CONFIG_PCI_SYSCALL=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEFAULT is not set
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
CONFIG_PCIEASPM_PERFORMANCE=y
CONFIG_PCIE_PTM=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_QUIRKS is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=y
CONFIG_PCI_ATS=y
CONFIG_PCI_ECAM=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
# CONFIG_PCI_PASID is not set
# CONFIG_PCIE_BUS_TUNE_OFF is not set
# CONFIG_PCIE_BUS_DEFAULT is not set
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
CONFIG_PCIE_BUS_PEER2PEER=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PCI controller drivers
#
# CONFIG_PCI_AARDVARK is not set
# CONFIG_PCIE_XILINX_NWL is not set
CONFIG_PCI_FTPCI100=y
# CONFIG_PCI_IXP4XX is not set
# CONFIG_PCI_TEGRA is not set
# CONFIG_PCI_RCAR_GEN2 is not set
# CONFIG_PCIE_RCAR_HOST is not set
CONFIG_PCI_HOST_COMMON=y
CONFIG_PCI_HOST_GENERIC=m
CONFIG_PCIE_XILINX=y
# CONFIG_PCIE_XILINX_CPM is not set
# CONFIG_PCI_XGENE is not set
# CONFIG_PCI_V3_SEMI is not set
# CONFIG_PCI_VERSATILE is not set
# CONFIG_PCIE_IPROC_PLATFORM is not set
# CONFIG_PCIE_IPROC_BCMA is not set
CONFIG_PCIE_ALTERA=m
CONFIG_PCIE_ALTERA_MSI=m
# CONFIG_PCI_HOST_THUNDER_PEM is not set
# CONFIG_PCI_HOST_THUNDER_ECAM is not set
# CONFIG_PCIE_ROCKCHIP_HOST is not set
# CONFIG_PCIE_MEDIATEK is not set
# CONFIG_PCIE_MEDIATEK_GEN3 is not set
# CONFIG_PCIE_BRCMSTB is not set
CONFIG_PCIE_MICROCHIP_HOST=y
# CONFIG_PCIE_APPLE is not set
# CONFIG_PCIE_MT7621 is not set

#
# DesignWare PCI Core Support
#
CONFIG_PCIE_DW=y
CONFIG_PCIE_DW_HOST=y
# CONFIG_PCI_DRA7XX_HOST is not set
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_EXYNOS is not set
# CONFIG_PCI_IMX6 is not set
# CONFIG_PCIE_SPEAR13XX is not set
# CONFIG_PCI_KEYSTONE_HOST is not set
CONFIG_PCI_LAYERSCAPE=y
# CONFIG_PCI_HISI is not set
# CONFIG_PCIE_QCOM is not set
# CONFIG_PCIE_ARMADA_8K is not set
# CONFIG_PCIE_ARTPEC6_HOST is not set
# CONFIG_PCIE_ROCKCHIP_DW_HOST is not set
# CONFIG_PCIE_INTEL_GW is not set
# CONFIG_PCIE_KEEMBAY_HOST is not set
# CONFIG_PCIE_KIRIN is not set
# CONFIG_PCIE_HISI_STB is not set
# CONFIG_PCI_MESON is not set
# CONFIG_PCIE_TEGRA194_HOST is not set
# CONFIG_PCIE_VISCONTI_HOST is not set
# CONFIG_PCIE_UNIPHIER is not set
# CONFIG_PCIE_AL is not set
# CONFIG_PCIE_FU740 is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# CONFIG_PCIE_MOBIVEIL_PLAT is not set
# CONFIG_PCIE_LAYERSCAPE_GEN4 is not set
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
CONFIG_PCIE_CADENCE=y
CONFIG_PCIE_CADENCE_HOST=y
CONFIG_PCIE_CADENCE_PLAT=y
CONFIG_PCIE_CADENCE_PLAT_HOST=y
CONFIG_PCI_J721E=y
CONFIG_PCI_J721E_HOST=y
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
CONFIG_PCI_SW_SWITCHTEC=y
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
CONFIG_PCCARD=y
# CONFIG_PCMCIA is not set
CONFIG_CARDBUS=y

#
# PC-card bridges
#
# CONFIG_YENTA is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
CONFIG_DEBUG_DRIVER=y
CONFIG_DEBUG_DEVRES=y
CONFIG_DEBUG_TEST_DRIVER_REMOVE=y
CONFIG_TEST_ASYNC_DRIVER_PROBE=m
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_SOC_BUS=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPMI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_ARM_INTEGRATOR_LM is not set
# CONFIG_BRCMSTB_GISB_ARB is not set
# CONFIG_BT1_APB is not set
# CONFIG_BT1_AXI is not set
# CONFIG_HISILICON_LPC is not set
# CONFIG_INTEL_IXP4XX_EB is not set
# CONFIG_OMAP_INTERCONNECT is not set
CONFIG_OMAP_OCP2SCP=y
# CONFIG_QCOM_EBI2 is not set
CONFIG_TI_PWMSS=y
CONFIG_TI_SYSC=y
# CONFIG_VEXPRESS_CONFIG is not set
# CONFIG_FSL_MC_BUS is not set
CONFIG_MHI_BUS=m
# CONFIG_MHI_BUS_DEBUG is not set
# CONFIG_MHI_BUS_PCI_GENERIC is not set
CONFIG_MHI_BUS_EP=m
# end of Bus devices

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
CONFIG_ARM_SCMI_PROTOCOL=m
# CONFIG_ARM_SCMI_TRANSPORT_MAILBOX is not set
# CONFIG_ARM_SCMI_TRANSPORT_VIRTIO is not set
# CONFIG_ARM_SCMI_POWER_DOMAIN is not set
CONFIG_ARM_SCMI_POWER_CONTROL=m
# end of ARM System Control and Management Interface Protocol

CONFIG_ARM_SCPI_PROTOCOL=y
CONFIG_ARM_SCPI_POWER_DOMAIN=y
# CONFIG_FIRMWARE_MEMMAP is not set
CONFIG_FW_CFG_SYSFS=m
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
# CONFIG_TURRIS_MOX_RWTM is not set
# CONFIG_BCM47XX_NVRAM is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

CONFIG_GNSS=m
CONFIG_GNSS_USB=m
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
# CONFIG_OF_ALL_DTBS is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_DYNAMIC=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
CONFIG_OF_RESOLVE=y
CONFIG_OF_OVERLAY=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set

#
# NVME Support
#
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
CONFIG_DUMMY_IRQ=m
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=y
CONFIG_TIFM_7XX1=y
# CONFIG_ICS932S401 is not set
# CONFIG_ATMEL_SSC is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_HI6421V600_IRQ=y
CONFIG_HP_ILO=m
# CONFIG_QCOM_COINCELL is not set
# CONFIG_QCOM_FASTRPC is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
CONFIG_DS1682=m
# CONFIG_PCH_PHUB is not set
CONFIG_SRAM=y
CONFIG_SRAM_EXEC=y
CONFIG_DW_XDATA_PCIE=y
CONFIG_PCI_ENDPOINT_TEST=y
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=y
# CONFIG_HISI_HIKEY_USB is not set
CONFIG_OPEN_DICE=y
CONFIG_VCPU_STALL_DETECTOR=m
CONFIG_C2PORT=m

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=y
CONFIG_EEPROM_IDT_89HPESX=m
CONFIG_EEPROM_EE1004=m
# end of EEPROM support

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_ECHO=m
# CONFIG_BCM_VK is not set
CONFIG_MISC_ALCOR_PCI=m
# CONFIG_MISC_RTSX_PCI is not set
CONFIG_MISC_RTSX_USB=y
CONFIG_HABANA_AI=y
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set
# CONFIG_GP_PCI1XXXX is not set
# end of Misc devices

#
# SCSI device support
#
# end of SCSI device support

CONFIG_FUSION=y
CONFIG_FUSION_MAX_SGE=128
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_NOSY=m
# end of IEEE 1394 (FireWire) support

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=y
CONFIG_INPUT_VIVALDIFMAP=m

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=m
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADC=m
CONFIG_KEYBOARD_ADP5588=m
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_QT1050=m
CONFIG_KEYBOARD_QT1070=m
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_CLPS711X is not set
CONFIG_KEYBOARD_DLINK_DIR685=m
CONFIG_KEYBOARD_LKKBD=y
# CONFIG_KEYBOARD_EP93XX is not set
# CONFIG_KEYBOARD_GPIO is not set
CONFIG_KEYBOARD_GPIO_POLLED=y
CONFIG_KEYBOARD_TCA6416=m
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_MATRIX=m
CONFIG_KEYBOARD_LM8323=m
CONFIG_KEYBOARD_LM8333=m
CONFIG_KEYBOARD_MAX7359=m
CONFIG_KEYBOARD_MCS=m
CONFIG_KEYBOARD_MPR121=m
# CONFIG_KEYBOARD_SNVS_PWRKEY is not set
# CONFIG_KEYBOARD_IMX is not set
CONFIG_KEYBOARD_NEWTON=m
CONFIG_KEYBOARD_OPENCORES=m
CONFIG_KEYBOARD_PINEPHONE=m
# CONFIG_KEYBOARD_PMIC8XXX is not set
CONFIG_KEYBOARD_SAMSUNG=y
# CONFIG_KEYBOARD_GOLDFISH_EVENTS is not set
CONFIG_KEYBOARD_STOWAWAY=y
# CONFIG_KEYBOARD_ST_KEYSCAN is not set
CONFIG_KEYBOARD_SUNKBD=y
# CONFIG_KEYBOARD_SH_KEYSC is not set
# CONFIG_KEYBOARD_OMAP4 is not set
CONFIG_KEYBOARD_TM2_TOUCHKEY=m
CONFIG_KEYBOARD_XTKBD=m
# CONFIG_KEYBOARD_CROS_EC is not set
CONFIG_KEYBOARD_CAP11XX=m
CONFIG_KEYBOARD_BCM=y
# CONFIG_KEYBOARD_MT6779 is not set
# CONFIG_KEYBOARD_MTK_PMIC is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_JOYSTICK=y
CONFIG_JOYSTICK_ANALOG=m
CONFIG_JOYSTICK_A3D=m
CONFIG_JOYSTICK_ADC=m
CONFIG_JOYSTICK_ADI=m
CONFIG_JOYSTICK_COBRA=y
CONFIG_JOYSTICK_GF2K=m
# CONFIG_JOYSTICK_GRIP is not set
CONFIG_JOYSTICK_GRIP_MP=y
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
CONFIG_JOYSTICK_SIDEWINDER=y
CONFIG_JOYSTICK_TMDC=m
# CONFIG_JOYSTICK_IFORCE is not set
CONFIG_JOYSTICK_WARRIOR=m
CONFIG_JOYSTICK_MAGELLAN=m
CONFIG_JOYSTICK_SPACEORB=m
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
CONFIG_JOYSTICK_ZHENHUA=y
CONFIG_JOYSTICK_AS5011=m
CONFIG_JOYSTICK_JOYDUMP=m
# CONFIG_JOYSTICK_XPAD is not set
# CONFIG_JOYSTICK_PXRC is not set
# CONFIG_JOYSTICK_QWIIC is not set
CONFIG_JOYSTICK_FSIA6B=m
# CONFIG_JOYSTICK_SENSEHAT is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
CONFIG_TABLET_USB_HANWANG=y
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_PEGASUS is not set
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_AD7879=m
CONFIG_TOUCHSCREEN_AD7879_I2C=m
# CONFIG_TOUCHSCREEN_ADC is not set
CONFIG_TOUCHSCREEN_AR1021_I2C=m
CONFIG_TOUCHSCREEN_ATMEL_MXT=m
CONFIG_TOUCHSCREEN_AUO_PIXCIR=m
# CONFIG_TOUCHSCREEN_BU21013 is not set
CONFIG_TOUCHSCREEN_BU21029=m
CONFIG_TOUCHSCREEN_CHIPONE_ICN8318=m
CONFIG_TOUCHSCREEN_CY8CTMA140=m
CONFIG_TOUCHSCREEN_CY8CTMG110=m
CONFIG_TOUCHSCREEN_CYTTSP_CORE=y
CONFIG_TOUCHSCREEN_CYTTSP_I2C=m
CONFIG_TOUCHSCREEN_CYTTSP4_CORE=m
# CONFIG_TOUCHSCREEN_CYTTSP4_I2C is not set
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
CONFIG_TOUCHSCREEN_EXC3000=m
CONFIG_TOUCHSCREEN_FUJITSU=y
CONFIG_TOUCHSCREEN_GOODIX=m
# CONFIG_TOUCHSCREEN_HIDEEP is not set
CONFIG_TOUCHSCREEN_HYCON_HY46XX=m
# CONFIG_TOUCHSCREEN_ILI210X is not set
CONFIG_TOUCHSCREEN_ILITEK=m
# CONFIG_TOUCHSCREEN_IPROC is not set
# CONFIG_TOUCHSCREEN_S6SY761 is not set
CONFIG_TOUCHSCREEN_GUNZE=y
CONFIG_TOUCHSCREEN_EKTF2127=m
CONFIG_TOUCHSCREEN_ELAN=m
# CONFIG_TOUCHSCREEN_ELO is not set
CONFIG_TOUCHSCREEN_WACOM_W8001=m
CONFIG_TOUCHSCREEN_WACOM_I2C=m
CONFIG_TOUCHSCREEN_MAX11801=m
CONFIG_TOUCHSCREEN_MCS5000=m
CONFIG_TOUCHSCREEN_MMS114=m
CONFIG_TOUCHSCREEN_MELFAS_MIP4=m
CONFIG_TOUCHSCREEN_MSG2638=m
CONFIG_TOUCHSCREEN_MTOUCH=y
CONFIG_TOUCHSCREEN_IMAGIS=m
CONFIG_TOUCHSCREEN_IMX6UL_TSC=m
CONFIG_TOUCHSCREEN_INEXIO=m
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
CONFIG_TOUCHSCREEN_EDT_FT5X06=m
# CONFIG_TOUCHSCREEN_RASPBERRYPI_FW is not set
# CONFIG_TOUCHSCREEN_MIGOR is not set
CONFIG_TOUCHSCREEN_TOUCHRIGHT=y
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
CONFIG_TOUCHSCREEN_PIXCIR=m
CONFIG_TOUCHSCREEN_WDT87XX_I2C=m
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
# CONFIG_TOUCHSCREEN_USB_3M is not set
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
# CONFIG_TOUCHSCREEN_USB_GUNZE is not set
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
# CONFIG_TOUCHSCREEN_USB_JASTEC is not set
CONFIG_TOUCHSCREEN_USB_ELO=y
# CONFIG_TOUCHSCREEN_USB_E2I is not set
# CONFIG_TOUCHSCREEN_USB_ZYTRONIC is not set
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TS4800 is not set
CONFIG_TOUCHSCREEN_TSC_SERIO=y
CONFIG_TOUCHSCREEN_TSC200X_CORE=m
CONFIG_TOUCHSCREEN_TSC2004=m
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_TOUCHSCREEN_TSC2007_IIO is not set
CONFIG_TOUCHSCREEN_RM_TS=m
# CONFIG_TOUCHSCREEN_SILEAD is not set
CONFIG_TOUCHSCREEN_SIS_I2C=m
CONFIG_TOUCHSCREEN_ST1232=m
CONFIG_TOUCHSCREEN_STMFTS=m
# CONFIG_TOUCHSCREEN_SUN4I is not set
CONFIG_TOUCHSCREEN_SX8654=m
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZET6223 is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
CONFIG_TOUCHSCREEN_COLIBRI_VF50=m
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
# CONFIG_TOUCHSCREEN_IQS5XX is not set
CONFIG_TOUCHSCREEN_ZINITIX=m
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_88PM80X_ONKEY is not set
# CONFIG_INPUT_AD714X is not set
CONFIG_INPUT_ATC260X_ONKEY=m
# CONFIG_INPUT_ATMEL_CAPTOUCH is not set
# CONFIG_INPUT_BMA150 is not set
CONFIG_INPUT_E3X0_BUTTON=y
CONFIG_INPUT_PM8XXX_VIBRATOR=m
CONFIG_INPUT_PMIC8XXX_PWRKEY=m
CONFIG_INPUT_MAX77693_HAPTIC=m
CONFIG_INPUT_MMA8450=m
CONFIG_INPUT_GPIO_BEEPER=y
CONFIG_INPUT_GPIO_DECODER=y
# CONFIG_INPUT_GPIO_VIBRA is not set
CONFIG_INPUT_ATI_REMOTE2=y
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_KXTJ9=m
CONFIG_INPUT_POWERMATE=y
# CONFIG_INPUT_YEALINK is not set
CONFIG_INPUT_CM109=y
CONFIG_INPUT_REGULATOR_HAPTIC=m
CONFIG_INPUT_RETU_PWRBUTTON=m
CONFIG_INPUT_TPS65218_PWRBUTTON=m
CONFIG_INPUT_AXP20X_PEK=m
CONFIG_INPUT_UINPUT=m
# CONFIG_INPUT_PCF50633_PMU is not set
CONFIG_INPUT_PCF8574=m
CONFIG_INPUT_PWM_BEEPER=m
CONFIG_INPUT_PWM_VIBRA=m
# CONFIG_INPUT_RK805_PWRKEY is not set
CONFIG_INPUT_GPIO_ROTARY_ENCODER=m
CONFIG_INPUT_DA7280_HAPTICS=m
CONFIG_INPUT_DA9063_ONKEY=m
CONFIG_INPUT_ADXL34X=m
CONFIG_INPUT_ADXL34X_I2C=m
CONFIG_INPUT_IBM_PANEL=m
CONFIG_INPUT_IMS_PCU=y
CONFIG_INPUT_IQS269A=m
CONFIG_INPUT_IQS626A=m
CONFIG_INPUT_IQS7222=m
CONFIG_INPUT_CMA3000=m
# CONFIG_INPUT_CMA3000_I2C is not set
CONFIG_INPUT_DRV260X_HAPTICS=m
# CONFIG_INPUT_DRV2665_HAPTICS is not set
CONFIG_INPUT_DRV2667_HAPTICS=m
# CONFIG_INPUT_HISI_POWERKEY is not set
# CONFIG_INPUT_SC27XX_VIBRA is not set
# CONFIG_INPUT_RT5120_PWRKEY is not set
CONFIG_RMI4_CORE=y
CONFIG_RMI4_I2C=m
CONFIG_RMI4_SMB=m
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=y
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
# CONFIG_RMI4_F34 is not set
# CONFIG_RMI4_F3A is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_LIBPS2 is not set
CONFIG_SERIO_RAW=y
CONFIG_SERIO_ALTERA_PS2=y
CONFIG_SERIO_PS2MULT=m
CONFIG_SERIO_ARC_PS2=y
CONFIG_SERIO_APBPS2=y
# CONFIG_SERIO_OLPC_APSP is not set
# CONFIG_SERIO_SUN4I_PS2 is not set
CONFIG_SERIO_GPIO_PS2=y
CONFIG_USERIO=m
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=y
CONFIG_GAMEPORT_L4=m
CONFIG_GAMEPORT_EMU10K1=m
CONFIG_GAMEPORT_FM801=y
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
# CONFIG_CONSOLE_TRANSLATIONS is not set
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_16550A_VARIANTS=y
CONFIG_SERIAL_8250_FINTEK=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_EXAR is not set
# CONFIG_SERIAL_8250_MEN_MCB is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_ASPEED_VUART=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_FSL=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_EM is not set
# CONFIG_SERIAL_8250_IOC3 is not set
CONFIG_SERIAL_8250_RT288X=y
CONFIG_SERIAL_8250_OMAP=m
# CONFIG_SERIAL_8250_LPC18XX is not set
# CONFIG_SERIAL_8250_MT6577 is not set
# CONFIG_SERIAL_8250_UNIPHIER is not set
# CONFIG_SERIAL_8250_INGENIC is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
# CONFIG_SERIAL_8250_PERICOM is not set
# CONFIG_SERIAL_8250_PXA is not set
CONFIG_SERIAL_8250_TEGRA=y
# CONFIG_SERIAL_8250_BCM7271 is not set
CONFIG_SERIAL_OF_PLATFORM=m

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_AMBA_PL010 is not set
# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set
# CONFIG_SERIAL_ATMEL is not set
CONFIG_SERIAL_KGDB_NMI=y
# CONFIG_SERIAL_MESON is not set
# CONFIG_SERIAL_CLPS711X is not set
# CONFIG_SERIAL_SAMSUNG is not set
# CONFIG_SERIAL_TEGRA is not set
# CONFIG_SERIAL_TEGRA_TCU is not set
# CONFIG_SERIAL_IMX is not set
# CONFIG_SERIAL_IMX_EARLYCON is not set
CONFIG_SERIAL_UARTLITE=m
CONFIG_SERIAL_UARTLITE_NR_UARTS=1
# CONFIG_SERIAL_SH_SCI is not set
# CONFIG_SERIAL_HS_LPC32XX is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_ICOM is not set
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_MSM is not set
CONFIG_SERIAL_VT8500=y
CONFIG_SERIAL_VT8500_CONSOLE=y
CONFIG_SERIAL_OMAP=m
CONFIG_SERIAL_SIFIVE=y
# CONFIG_SERIAL_SIFIVE_CONSOLE is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_QE is not set
# CONFIG_SERIAL_SCCNXP is not set
CONFIG_SERIAL_SC16IS7XX_CORE=m
CONFIG_SERIAL_SC16IS7XX=m
CONFIG_SERIAL_SC16IS7XX_I2C=y
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_BCM63XX is not set
CONFIG_SERIAL_ALTERA_JTAGUART=y
CONFIG_SERIAL_ALTERA_JTAGUART_CONSOLE=y
# CONFIG_SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS is not set
CONFIG_SERIAL_ALTERA_UART=y
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_ALTERA_UART_CONSOLE=y
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_MXS_AUART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_MPS2_UART is not set
# CONFIG_SERIAL_ARC is not set
CONFIG_SERIAL_RP2=m
CONFIG_SERIAL_RP2_NR_UARTS=32
CONFIG_SERIAL_FSL_LPUART=m
# CONFIG_SERIAL_FSL_LPUART_CONSOLE is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
CONFIG_SERIAL_ST_ASC=y
# CONFIG_SERIAL_ST_ASC_CONSOLE is not set
CONFIG_SERIAL_MEN_Z135=m
# CONFIG_SERIAL_SPRD is not set
# CONFIG_SERIAL_STM32 is not set
# CONFIG_SERIAL_MVEBU_UART is not set
# CONFIG_SERIAL_OWL is not set
# CONFIG_SERIAL_RDA is not set
# CONFIG_SERIAL_MILBEAUT_USIO is not set
# CONFIG_SERIAL_LITEUART is not set
# CONFIG_SERIAL_SUNPLUS is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_NOZOMI=y
CONFIG_NULL_TTY=m
CONFIG_HVC_DRIVER=y
# CONFIG_HVC_DCC is not set
CONFIG_RPMSG_TTY=y
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_VIRTIO_CONSOLE=m
# CONFIG_IPMI_HANDLER is not set
# CONFIG_ASPEED_KCS_IPMI_BMC is not set
# CONFIG_NPCM7XX_KCS_IPMI_BMC is not set
# CONFIG_ASPEED_BT_IPMI_BMC is not set
# CONFIG_IPMB_DEVICE_INTERFACE is not set
CONFIG_HW_RANDOM=m
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_ATMEL=m
CONFIG_HW_RANDOM_BA431=m
CONFIG_HW_RANDOM_BCM2835=m
CONFIG_HW_RANDOM_IPROC_RNG200=m
CONFIG_HW_RANDOM_IXP4XX=m
# CONFIG_HW_RANDOM_OMAP is not set
CONFIG_HW_RANDOM_OMAP3_ROM=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HW_RANDOM_IMX_RNGC=m
CONFIG_HW_RANDOM_NOMADIK=m
CONFIG_HW_RANDOM_STM32=m
CONFIG_HW_RANDOM_MESON=m
CONFIG_HW_RANDOM_MTK=m
CONFIG_HW_RANDOM_EXYNOS=m
CONFIG_HW_RANDOM_NPCM=m
CONFIG_HW_RANDOM_KEYSTONE=m
CONFIG_HW_RANDOM_CCTRNG=m
CONFIG_HW_RANDOM_XIPHERA=m
# CONFIG_APPLICOM is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVPORT is not set
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS_CORE=m
CONFIG_TCG_TIS=m
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_SYNQUACER is not set
CONFIG_TCG_TIS_I2C_CR50=m
# CONFIG_TCG_TIS_I2C_ATMEL is not set
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_VTPM_PROXY=y
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
CONFIG_XILLYBUS_CLASS=y
CONFIG_XILLYBUS=m
CONFIG_XILLYBUS_PCIE=m
CONFIG_XILLYBUS_OF=m
CONFIG_XILLYUSB=y
# CONFIG_RANDOM_TRUST_CPU is not set
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices

#
# I2C support
#
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set
# CONFIG_I2C_MUX_GPIO is not set
CONFIG_I2C_MUX_GPMUX=m
CONFIG_I2C_MUX_LTC4306=m
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=m
CONFIG_I2C_MUX_PINCTRL=m
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_DEMUX_PINCTRL=m
CONFIG_I2C_MUX_MLXCPLD=m
# end of Multiplexer I2C Chip support

# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_SMBUS=m

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=m
# CONFIG_I2C_ALGOPCF is not set
CONFIG_I2C_ALGOPCA=m
# end of I2C Algorithms

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_CCGX_UCSI=m
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
CONFIG_I2C_ALI15X3=m
CONFIG_I2C_AMD756=m
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_HIX5HD2 is not set
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NVIDIA_GPU=m
CONFIG_I2C_SIS5595=m
CONFIG_I2C_SIS630=m
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_ALTERA is not set
CONFIG_I2C_ASPEED=m
# CONFIG_I2C_AT91 is not set
# CONFIG_I2C_AXXIA is not set
# CONFIG_I2C_BCM2835 is not set
# CONFIG_I2C_BCM_IPROC is not set
# CONFIG_I2C_BCM_KONA is not set
CONFIG_I2C_BRCMSTB=m
# CONFIG_I2C_CADENCE is not set
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DAVINCI is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_DIGICOLOR is not set
# CONFIG_I2C_EG20T is not set
CONFIG_I2C_EMEV2=m
# CONFIG_I2C_EXYNOS5 is not set
CONFIG_I2C_GPIO=m
# CONFIG_I2C_GPIO_FAULT_INJECTOR is not set
# CONFIG_I2C_HIGHLANDER is not set
# CONFIG_I2C_HISI is not set
# CONFIG_I2C_IMG is not set
# CONFIG_I2C_IMX is not set
# CONFIG_I2C_IMX_LPI2C is not set
# CONFIG_I2C_IOP3XX is not set
# CONFIG_I2C_JZ4780 is not set
# CONFIG_I2C_LPC2K is not set
# CONFIG_I2C_MESON is not set
# CONFIG_I2C_MICROCHIP_CORE is not set
# CONFIG_I2C_MT65XX is not set
# CONFIG_I2C_MT7621 is not set
# CONFIG_I2C_MV64XXX is not set
# CONFIG_I2C_MXS is not set
# CONFIG_I2C_NPCM is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_OMAP=m
# CONFIG_I2C_OWL is not set
# CONFIG_I2C_APPLE is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PNX is not set
# CONFIG_I2C_PXA is not set
# CONFIG_I2C_QCOM_CCI is not set
# CONFIG_I2C_QUP is not set
# CONFIG_I2C_RIIC is not set
CONFIG_I2C_RK3X=m
# CONFIG_I2C_RZV2M is not set
# CONFIG_I2C_S3C2410 is not set
# CONFIG_I2C_SH_MOBILE is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_ST is not set
# CONFIG_I2C_STM32F4 is not set
# CONFIG_I2C_STM32F7 is not set
# CONFIG_I2C_SUN6I_P2WI is not set
# CONFIG_I2C_SYNQUACER is not set
# CONFIG_I2C_TEGRA is not set
# CONFIG_I2C_TEGRA_BPMP is not set
# CONFIG_I2C_UNIPHIER is not set
# CONFIG_I2C_UNIPHIER_F is not set
# CONFIG_I2C_VERSATILE is not set
CONFIG_I2C_WMT=m
CONFIG_I2C_XILINX=m
# CONFIG_I2C_XLP9XX is not set
# CONFIG_I2C_RCAR is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_DIOLAN_U2C=m
# CONFIG_I2C_DLN2 is not set
CONFIG_I2C_CP2615=m
# CONFIG_I2C_PCI1XXXX is not set
CONFIG_I2C_ROBOTFUZZ_OSIF=m
CONFIG_I2C_TAOS_EVM=m
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
CONFIG_I2C_CROS_EC_TUNNEL=m
CONFIG_I2C_FSI=m
CONFIG_I2C_VIRTIO=m
# end of I2C Hardware Bus support

CONFIG_I2C_STUB=m
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=m
CONFIG_I2C_SLAVE_TESTUNIT=m
# CONFIG_I2C_DEBUG_CORE is not set
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
# end of I2C support

# CONFIG_I3C is not set
# CONFIG_SPI is not set
CONFIG_SPMI=y
# CONFIG_SPMI_HISI3670 is not set
# CONFIG_SPMI_MSM_PMIC_ARB is not set
# CONFIG_SPMI_MTK_PMIF is not set
CONFIG_HSI=m
CONFIG_HSI_BOARDINFO=y

#
# HSI controllers
#
# CONFIG_OMAP_SSI is not set

#
# HSI clients
#
CONFIG_HSI_CHAR=m
# CONFIG_PPS is not set

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_GENERIC_PINCTRL_GROUPS=y
CONFIG_PINMUX=y
CONFIG_GENERIC_PINMUX_FUNCTIONS=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_AT91PIO4 is not set
CONFIG_PINCTRL_AXP209=m
# CONFIG_PINCTRL_BM1880 is not set
CONFIG_PINCTRL_CY8C95X0=m
# CONFIG_PINCTRL_DA850_PUPD is not set
CONFIG_PINCTRL_DA9062=m
# CONFIG_PINCTRL_EQUILIBRIUM is not set
# CONFIG_PINCTRL_INGENIC is not set
# CONFIG_PINCTRL_LPC18XX is not set
CONFIG_PINCTRL_MCP23S08_I2C=m
CONFIG_PINCTRL_MCP23S08=m
CONFIG_PINCTRL_MICROCHIP_SGPIO=m
CONFIG_PINCTRL_OCELOT=y
# CONFIG_PINCTRL_PISTACHIO is not set
CONFIG_PINCTRL_RK805=m
# CONFIG_PINCTRL_ROCKCHIP is not set
CONFIG_PINCTRL_SINGLE=m
CONFIG_PINCTRL_STMFX=m
# CONFIG_PINCTRL_OWL is not set
# CONFIG_PINCTRL_ASPEED_G4 is not set
# CONFIG_PINCTRL_ASPEED_G5 is not set
# CONFIG_PINCTRL_ASPEED_G6 is not set
# CONFIG_PINCTRL_BCM281XX is not set
# CONFIG_PINCTRL_BCM2835 is not set
# CONFIG_PINCTRL_BCM4908 is not set
# CONFIG_PINCTRL_BCM6318 is not set
# CONFIG_PINCTRL_BCM6328 is not set
# CONFIG_PINCTRL_BCM6358 is not set
# CONFIG_PINCTRL_BCM6362 is not set
# CONFIG_PINCTRL_BCM6368 is not set
# CONFIG_PINCTRL_BCM63268 is not set
# CONFIG_PINCTRL_IPROC_GPIO is not set
# CONFIG_PINCTRL_CYGNUS_MUX is not set
# CONFIG_PINCTRL_NS is not set
# CONFIG_PINCTRL_NSP_GPIO is not set
# CONFIG_PINCTRL_NS2_MUX is not set
# CONFIG_PINCTRL_NSP_MUX is not set
# CONFIG_PINCTRL_AS370 is not set
# CONFIG_PINCTRL_BERLIN_BG4CT is not set
CONFIG_PINCTRL_MADERA=m
CONFIG_PINCTRL_CS47L92=y

#
# Intel pinctrl drivers
#
# end of Intel pinctrl drivers

#
# MediaTek pinctrl drivers
#
# CONFIG_EINT_MTK is not set
# CONFIG_PINCTRL_MT2701 is not set
# CONFIG_PINCTRL_MT7623 is not set
# CONFIG_PINCTRL_MT7629 is not set
# CONFIG_PINCTRL_MT8135 is not set
# CONFIG_PINCTRL_MT8127 is not set
# CONFIG_PINCTRL_MT2712 is not set
# CONFIG_PINCTRL_MT6765 is not set
# CONFIG_PINCTRL_MT6779 is not set
# CONFIG_PINCTRL_MT6795 is not set
# CONFIG_PINCTRL_MT6797 is not set
# CONFIG_PINCTRL_MT7622 is not set
# CONFIG_PINCTRL_MT7986 is not set
# CONFIG_PINCTRL_MT8167 is not set
# CONFIG_PINCTRL_MT8173 is not set
# CONFIG_PINCTRL_MT8183 is not set
# CONFIG_PINCTRL_MT8186 is not set
# CONFIG_PINCTRL_MT8188 is not set
# CONFIG_PINCTRL_MT8192 is not set
# CONFIG_PINCTRL_MT8195 is not set
# CONFIG_PINCTRL_MT8365 is not set
# CONFIG_PINCTRL_MT8516 is not set
# CONFIG_PINCTRL_MT6397 is not set
# end of MediaTek pinctrl drivers

CONFIG_PINCTRL_MESON=y
CONFIG_PINCTRL_MESON8=y
CONFIG_PINCTRL_MESON8B=y
CONFIG_PINCTRL_MESON8_PMX=y
# CONFIG_PINCTRL_WPCM450 is not set
# CONFIG_PINCTRL_NPCM7XX is not set
# CONFIG_PINCTRL_PXA25X is not set
# CONFIG_PINCTRL_PXA27X is not set
# CONFIG_PINCTRL_MSM is not set
# CONFIG_PINCTRL_QCOM_SPMI_PMIC is not set
# CONFIG_PINCTRL_QCOM_SSBI_PMIC is not set
# CONFIG_PINCTRL_LPASS_LPI is not set

#
# Renesas pinctrl drivers
#
# CONFIG_PINCTRL_RENESAS is not set
# CONFIG_PINCTRL_PFC_EMEV2 is not set
# CONFIG_PINCTRL_PFC_R8A77995 is not set
# CONFIG_PINCTRL_PFC_R8A7794 is not set
# CONFIG_PINCTRL_PFC_R8A77990 is not set
# CONFIG_PINCTRL_PFC_R8A7779 is not set
# CONFIG_PINCTRL_PFC_R8A7790 is not set
# CONFIG_PINCTRL_PFC_R8A77950 is not set
# CONFIG_PINCTRL_PFC_R8A77951 is not set
# CONFIG_PINCTRL_PFC_R8A7778 is not set
# CONFIG_PINCTRL_PFC_R8A7793 is not set
# CONFIG_PINCTRL_PFC_R8A7791 is not set
# CONFIG_PINCTRL_PFC_R8A77965 is not set
# CONFIG_PINCTRL_PFC_R8A77960 is not set
# CONFIG_PINCTRL_PFC_R8A77961 is not set
# CONFIG_PINCTRL_PFC_R8A779F0 is not set
# CONFIG_PINCTRL_PFC_R8A7792 is not set
# CONFIG_PINCTRL_PFC_R8A77980 is not set
# CONFIG_PINCTRL_PFC_R8A77970 is not set
# CONFIG_PINCTRL_PFC_R8A779A0 is not set
# CONFIG_PINCTRL_PFC_R8A779G0 is not set
# CONFIG_PINCTRL_PFC_R8A7740 is not set
# CONFIG_PINCTRL_PFC_R8A73A4 is not set
# CONFIG_PINCTRL_RZA1 is not set
# CONFIG_PINCTRL_RZA2 is not set
# CONFIG_PINCTRL_RZG2L is not set
# CONFIG_PINCTRL_PFC_R8A77470 is not set
# CONFIG_PINCTRL_PFC_R8A7745 is not set
# CONFIG_PINCTRL_PFC_R8A7742 is not set
# CONFIG_PINCTRL_PFC_R8A7743 is not set
# CONFIG_PINCTRL_PFC_R8A7744 is not set
# CONFIG_PINCTRL_PFC_R8A774C0 is not set
# CONFIG_PINCTRL_PFC_R8A774E1 is not set
# CONFIG_PINCTRL_PFC_R8A774A1 is not set
# CONFIG_PINCTRL_PFC_R8A774B1 is not set
# CONFIG_PINCTRL_RZN1 is not set
# CONFIG_PINCTRL_RZV2M is not set
# CONFIG_PINCTRL_PFC_SH7203 is not set
# CONFIG_PINCTRL_PFC_SH7264 is not set
# CONFIG_PINCTRL_PFC_SH7269 is not set
# CONFIG_PINCTRL_PFC_SH7720 is not set
# CONFIG_PINCTRL_PFC_SH7722 is not set
# CONFIG_PINCTRL_PFC_SH7734 is not set
# CONFIG_PINCTRL_PFC_SH7757 is not set
# CONFIG_PINCTRL_PFC_SH7785 is not set
# CONFIG_PINCTRL_PFC_SH7786 is not set
# CONFIG_PINCTRL_PFC_SH73A0 is not set
# CONFIG_PINCTRL_PFC_SH7723 is not set
# CONFIG_PINCTRL_PFC_SH7724 is not set
# CONFIG_PINCTRL_PFC_SHX3 is not set
# end of Renesas pinctrl drivers

# CONFIG_PINCTRL_EXYNOS is not set
# CONFIG_PINCTRL_S3C24XX is not set
# CONFIG_PINCTRL_S3C64XX is not set
# CONFIG_PINCTRL_SPRD_SC9860 is not set
# CONFIG_PINCTRL_STARFIVE_JH7100 is not set
# CONFIG_PINCTRL_STM32F429 is not set
# CONFIG_PINCTRL_STM32F469 is not set
# CONFIG_PINCTRL_STM32F746 is not set
# CONFIG_PINCTRL_STM32F769 is not set
# CONFIG_PINCTRL_STM32H743 is not set
# CONFIG_PINCTRL_STM32MP135 is not set
# CONFIG_PINCTRL_STM32MP157 is not set
# CONFIG_PINCTRL_TI_IODELAY is not set
CONFIG_PINCTRL_UNIPHIER=y
CONFIG_PINCTRL_UNIPHIER_LD4=y
CONFIG_PINCTRL_UNIPHIER_PRO4=y
CONFIG_PINCTRL_UNIPHIER_SLD8=y
CONFIG_PINCTRL_UNIPHIER_PRO5=y
CONFIG_PINCTRL_UNIPHIER_PXS2=y
CONFIG_PINCTRL_UNIPHIER_LD6B=y
# CONFIG_PINCTRL_UNIPHIER_LD11 is not set
# CONFIG_PINCTRL_UNIPHIER_LD20 is not set
# CONFIG_PINCTRL_UNIPHIER_PXS3 is not set
# CONFIG_PINCTRL_UNIPHIER_NX1 is not set
# CONFIG_PINCTRL_TMPV7700 is not set
CONFIG_PINCTRL_WMT=y
CONFIG_PINCTRL_WM8750=y
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
CONFIG_GPIOLIB_IRQCHIP=y
CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_MAX730X=m

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
CONFIG_GPIO_ALTERA=m
# CONFIG_GPIO_ASPEED is not set
CONFIG_GPIO_ASPEED_SGPIO=y
# CONFIG_GPIO_ATH79 is not set
# CONFIG_GPIO_RASPBERRYPI_EXP is not set
# CONFIG_GPIO_BCM_KONA is not set
# CONFIG_GPIO_BCM_XGS_IPROC is not set
# CONFIG_GPIO_BRCMSTB is not set
CONFIG_GPIO_CADENCE=m
# CONFIG_GPIO_CLPS711X is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EIC_SPRD is not set
# CONFIG_GPIO_EM is not set
# CONFIG_GPIO_FTGPIO010 is not set
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HISI is not set
CONFIG_GPIO_HLWD=y
# CONFIG_GPIO_IOP is not set
CONFIG_GPIO_LOGICVC=y
# CONFIG_GPIO_LPC18XX is not set
# CONFIG_GPIO_LPC32XX is not set
CONFIG_GPIO_MB86S7X=y
CONFIG_GPIO_MENZ127=m
# CONFIG_GPIO_MPC8XXX is not set
# CONFIG_GPIO_MT7621 is not set
# CONFIG_GPIO_MXC is not set
# CONFIG_GPIO_MXS is not set
CONFIG_GPIO_OMAP=m
# CONFIG_GPIO_PMIC_EIC_SPRD is not set
# CONFIG_GPIO_PXA is not set
# CONFIG_GPIO_RCAR is not set
# CONFIG_GPIO_RDA is not set
# CONFIG_GPIO_ROCKCHIP is not set
# CONFIG_GPIO_SAMA5D2_PIOBU is not set
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_SNPS_CREG is not set
# CONFIG_GPIO_SPRD is not set
# CONFIG_GPIO_STP_XWAY is not set
CONFIG_GPIO_SYSCON=y
# CONFIG_GPIO_TEGRA is not set
# CONFIG_GPIO_TEGRA186 is not set
# CONFIG_GPIO_TS4800 is not set
# CONFIG_GPIO_UNIPHIER is not set
# CONFIG_GPIO_VISCONTI is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_XGENE_SB is not set
CONFIG_GPIO_XILINX=y
# CONFIG_GPIO_XLP is not set
# CONFIG_GPIO_ZEVIO is not set
CONFIG_GPIO_AMD_FCH=m
# CONFIG_GPIO_IDT3243X is not set
# end of Memory mapped GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADNP is not set
CONFIG_GPIO_GW_PLD=m
CONFIG_GPIO_MAX7300=m
CONFIG_GPIO_MAX732X=m
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
CONFIG_GPIO_PCF857X=m
# CONFIG_GPIO_TPIC2810 is not set
# CONFIG_GPIO_TS4900 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_GPIO_BD9571MWV is not set
# CONFIG_GPIO_DLN2 is not set
# CONFIG_HTC_EGPIO is not set
CONFIG_GPIO_LP3943=m
CONFIG_GPIO_LP87565=m
# CONFIG_GPIO_MADERA is not set
# CONFIG_GPIO_SL28CPLD is not set
CONFIG_GPIO_TPS65086=m
CONFIG_GPIO_TPS65218=m
# CONFIG_GPIO_TPS65912 is not set
# CONFIG_GPIO_TQMX86 is not set
CONFIG_GPIO_WM8994=m
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
CONFIG_GPIO_PCIE_IDIO_24=m
CONFIG_GPIO_RDC321X=y
# end of PCI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
CONFIG_GPIO_AGGREGATOR=m
CONFIG_GPIO_MOCKUP=y
CONFIG_GPIO_VIRTIO=m
CONFIG_GPIO_SIM=y
# end of Virtual GPIO drivers

CONFIG_W1=y

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=m
CONFIG_W1_MASTER_DS2490=y
CONFIG_W1_MASTER_DS2482=m
# CONFIG_W1_MASTER_MXC is not set
CONFIG_W1_MASTER_DS1WM=y
CONFIG_W1_MASTER_GPIO=m
CONFIG_HDQ_MASTER_OMAP=m
# CONFIG_W1_MASTER_SGI is not set
# end of 1-wire Bus Masters

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=m
CONFIG_W1_SLAVE_SMEM=y
CONFIG_W1_SLAVE_DS2405=m
CONFIG_W1_SLAVE_DS2408=y
# CONFIG_W1_SLAVE_DS2408_READBACK is not set
CONFIG_W1_SLAVE_DS2413=m
CONFIG_W1_SLAVE_DS2406=m
CONFIG_W1_SLAVE_DS2423=m
# CONFIG_W1_SLAVE_DS2805 is not set
# CONFIG_W1_SLAVE_DS2430 is not set
CONFIG_W1_SLAVE_DS2431=m
CONFIG_W1_SLAVE_DS2433=m
# CONFIG_W1_SLAVE_DS2433_CRC is not set
CONFIG_W1_SLAVE_DS2438=y
CONFIG_W1_SLAVE_DS250X=m
CONFIG_W1_SLAVE_DS2780=y
CONFIG_W1_SLAVE_DS2781=y
CONFIG_W1_SLAVE_DS28E04=y
CONFIG_W1_SLAVE_DS28E17=m
# end of 1-wire Slaves

# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_POWER_SUPPLY_HWMON is not set
# CONFIG_PDA_POWER is not set
CONFIG_GENERIC_ADC_BATTERY=m
# CONFIG_IP5XXX_POWER is not set
CONFIG_TEST_POWER=y
CONFIG_CHARGER_ADP5061=m
# CONFIG_BATTERY_ACT8945A is not set
CONFIG_BATTERY_CW2015=m
CONFIG_BATTERY_DS2760=y
CONFIG_BATTERY_DS2780=m
CONFIG_BATTERY_DS2781=y
CONFIG_BATTERY_DS2782=m
# CONFIG_BATTERY_LEGO_EV3 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
CONFIG_BATTERY_SBS=m
# CONFIG_CHARGER_SBS is not set
CONFIG_MANAGER_SBS=m
CONFIG_BATTERY_BQ27XXX=y
# CONFIG_BATTERY_BQ27XXX_I2C is not set
CONFIG_BATTERY_BQ27XXX_HDQ=y
# CONFIG_CHARGER_DA9150 is not set
# CONFIG_BATTERY_DA9150 is not set
CONFIG_CHARGER_AXP20X=m
# CONFIG_BATTERY_AXP20X is not set
# CONFIG_AXP20X_POWER is not set
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_BATTERY_MAX17042=m
# CONFIG_BATTERY_MAX1721X is not set
CONFIG_CHARGER_PCF50633=m
# CONFIG_CHARGER_ISP1704 is not set
CONFIG_CHARGER_MAX8903=y
# CONFIG_CHARGER_LP8727 is not set
CONFIG_CHARGER_GPIO=y
# CONFIG_CHARGER_MANAGER is not set
CONFIG_CHARGER_LT3651=y
CONFIG_CHARGER_LTC4162L=m
CONFIG_CHARGER_DETECTOR_MAX14656=m
CONFIG_CHARGER_MAX77693=m
# CONFIG_CHARGER_MAX77976 is not set
CONFIG_CHARGER_MP2629=m
# CONFIG_CHARGER_MT6360 is not set
CONFIG_CHARGER_MT6370=m
# CONFIG_CHARGER_QCOM_SMBB is not set
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=m
CONFIG_CHARGER_BQ24257=m
CONFIG_CHARGER_BQ24735=m
# CONFIG_CHARGER_BQ2515X is not set
CONFIG_CHARGER_BQ25890=m
CONFIG_CHARGER_BQ25980=m
CONFIG_CHARGER_BQ256XX=m
CONFIG_CHARGER_RK817=m
CONFIG_CHARGER_SMB347=m
CONFIG_CHARGER_TPS65217=m
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
CONFIG_BATTERY_RT5033=m
CONFIG_CHARGER_RT9455=m
# CONFIG_CHARGER_CROS_USBPD is not set
CONFIG_CHARGER_CROS_PCHG=m
# CONFIG_CHARGER_SC2731 is not set
# CONFIG_FUEL_GAUGE_SC27XX is not set
CONFIG_CHARGER_UCS1002=m
CONFIG_CHARGER_BD99954=m
CONFIG_BATTERY_UG3105=m
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_ADT7X10=m
CONFIG_SENSORS_ADT7410=m
# CONFIG_SENSORS_ADT7411 is not set
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
CONFIG_SENSORS_AQUACOMPUTER_D5NEXT=m
CONFIG_SENSORS_AS370=y
# CONFIG_SENSORS_ASC7621 is not set
CONFIG_SENSORS_AXI_FAN_CONTROL=y
CONFIG_SENSORS_ARM_SCMI=m
CONFIG_SENSORS_ARM_SCPI=y
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_BT1_PVT is not set
CONFIG_SENSORS_CORSAIR_CPRO=m
CONFIG_SENSORS_CORSAIR_PSU=m
CONFIG_SENSORS_DS620=m
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_SPARX5 is not set
CONFIG_SENSORS_F71805F=y
# CONFIG_SENSORS_F71882FG is not set
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_GSC=m
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
CONFIG_SENSORS_G760A=m
CONFIG_SENSORS_G762=m
CONFIG_SENSORS_GPIO_FAN=y
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IIO_HWMON=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LAN966X is not set
# CONFIG_SENSORS_LINEAGE is not set
CONFIG_SENSORS_LTC2945=m
CONFIG_SENSORS_LTC2947=m
CONFIG_SENSORS_LTC2947_I2C=m
CONFIG_SENSORS_LTC2990=m
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
CONFIG_SENSORS_MAX127=m
CONFIG_SENSORS_MAX16065=m
# CONFIG_SENSORS_MAX1619 is not set
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
CONFIG_SENSORS_MAX31730=m
CONFIG_SENSORS_MAX31760=m
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
CONFIG_SENSORS_MAX31790=m
CONFIG_SENSORS_MCP3021=m
CONFIG_SENSORS_MLXREG_FAN=m
CONFIG_SENSORS_TC654=m
CONFIG_SENSORS_TPS23861=m
# CONFIG_SENSORS_MENF21BMC_HWMON is not set
# CONFIG_SENSORS_MR75203 is not set
CONFIG_SENSORS_LM63=m
# CONFIG_SENSORS_LM73 is not set
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM85=m
# CONFIG_SENSORS_LM87 is not set
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
CONFIG_SENSORS_PC87360=m
# CONFIG_SENSORS_PC87427 is not set
CONFIG_SENSORS_NTC_THERMISTOR=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775_CORE=m
# CONFIG_SENSORS_NCT6775 is not set
CONFIG_SENSORS_NCT6775_I2C=m
CONFIG_SENSORS_NCT7802=m
CONFIG_SENSORS_NCT7904=m
CONFIG_SENSORS_NPCM7XX=m
# CONFIG_SENSORS_NSA320 is not set
CONFIG_SENSORS_NZXT_KRAKEN2=y
# CONFIG_SENSORS_NZXT_SMART2 is not set
CONFIG_SENSORS_OCC_P8_I2C=m
CONFIG_SENSORS_OCC=m
CONFIG_SENSORS_PCF8591=m
# CONFIG_SENSORS_PECI_CPUTEMP is not set
# CONFIG_SENSORS_PECI_DIMMTEMP is not set
CONFIG_PMBUS=m
# CONFIG_SENSORS_PMBUS is not set
# CONFIG_SENSORS_ADM1266 is not set
CONFIG_SENSORS_ADM1275=m
CONFIG_SENSORS_BEL_PFE=m
CONFIG_SENSORS_BPA_RS600=m
CONFIG_SENSORS_DELTA_AHE50DC_FAN=m
CONFIG_SENSORS_FSP_3Y=m
CONFIG_SENSORS_IBM_CFFPS=m
CONFIG_SENSORS_DPS920AB=m
CONFIG_SENSORS_INSPUR_IPSPS=m
CONFIG_SENSORS_IR35221=m
CONFIG_SENSORS_IR36021=m
# CONFIG_SENSORS_IR38064 is not set
# CONFIG_SENSORS_IRPS5401 is not set
CONFIG_SENSORS_ISL68137=m
# CONFIG_SENSORS_LM25066 is not set
CONFIG_SENSORS_LT7182S=m
CONFIG_SENSORS_LTC2978=m
CONFIG_SENSORS_LTC2978_REGULATOR=y
CONFIG_SENSORS_LTC3815=m
CONFIG_SENSORS_MAX15301=m
CONFIG_SENSORS_MAX16064=m
CONFIG_SENSORS_MAX16601=m
CONFIG_SENSORS_MAX20730=m
CONFIG_SENSORS_MAX20751=m
CONFIG_SENSORS_MAX31785=m
CONFIG_SENSORS_MAX34440=m
# CONFIG_SENSORS_MAX8688 is not set
CONFIG_SENSORS_MP2888=m
CONFIG_SENSORS_MP2975=m
# CONFIG_SENSORS_MP5023 is not set
CONFIG_SENSORS_PIM4328=m
# CONFIG_SENSORS_PLI1209BC is not set
CONFIG_SENSORS_PM6764TR=m
# CONFIG_SENSORS_PXE1610 is not set
CONFIG_SENSORS_Q54SJ108A2=m
CONFIG_SENSORS_STPDDC60=m
# CONFIG_SENSORS_TPS40422 is not set
# CONFIG_SENSORS_TPS53679 is not set
CONFIG_SENSORS_TPS546D24=m
CONFIG_SENSORS_UCD9000=m
CONFIG_SENSORS_UCD9200=m
# CONFIG_SENSORS_XDPE152 is not set
# CONFIG_SENSORS_XDPE122 is not set
# CONFIG_SENSORS_ZL6100 is not set
CONFIG_SENSORS_PWM_FAN=y
# CONFIG_SENSORS_RASPBERRYPI_HWMON is not set
# CONFIG_SENSORS_SL28CPLD is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
CONFIG_SENSORS_SHT4x=m
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_SY7636A=m
# CONFIG_SENSORS_DME1737 is not set
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=m
CONFIG_SENSORS_EMC2305=m
# CONFIG_SENSORS_EMC6W201 is not set
CONFIG_SENSORS_SMSC47M1=y
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=y
CONFIG_SENSORS_SCH5627=y
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_ADC128D818=m
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
CONFIG_SENSORS_INA238=m
CONFIG_SENSORS_INA3221=m
CONFIG_SENSORS_TC74=m
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP103=m
CONFIG_SENSORS_TMP108=m
CONFIG_SENSORS_TMP401=m
# CONFIG_SENSORS_TMP421 is not set
CONFIG_SENSORS_TMP464=m
CONFIG_SENSORS_TMP513=m
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=y
CONFIG_SENSORS_VT8231=y
CONFIG_SENSORS_W83773G=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
# CONFIG_SENSORS_W83L786NG is not set
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_THERMAL=y
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
# CONFIG_THERMAL_OF is not set
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
CONFIG_DEVFREQ_THERMAL=y
# CONFIG_THERMAL_EMULATION is not set
CONFIG_THERMAL_MMIO=m
CONFIG_HISI_THERMAL=y
# CONFIG_IMX_THERMAL is not set
# CONFIG_IMX8MM_THERMAL is not set
# CONFIG_K3_THERMAL is not set
# CONFIG_SPEAR_THERMAL is not set
# CONFIG_SUN8I_THERMAL is not set
# CONFIG_ROCKCHIP_THERMAL is not set
# CONFIG_RCAR_THERMAL is not set
# CONFIG_RCAR_GEN3_THERMAL is not set
# CONFIG_RZG2L_THERMAL is not set
# CONFIG_KIRKWOOD_THERMAL is not set
# CONFIG_DOVE_THERMAL is not set
# CONFIG_ARMADA_THERMAL is not set
CONFIG_DA9062_THERMAL=m
CONFIG_MTK_THERMAL=y

#
# Intel thermal drivers
#

#
# ACPI INT340X thermal drivers
#
# end of ACPI INT340X thermal drivers
# end of Intel thermal drivers

#
# Broadcom thermal drivers
#
# CONFIG_BRCMSTB_THERMAL is not set
# CONFIG_BCM_NS_THERMAL is not set
# CONFIG_BCM_SR_THERMAL is not set
# end of Broadcom thermal drivers

#
# Texas Instruments thermal drivers
#
CONFIG_TI_SOC_THERMAL=m
CONFIG_TI_THERMAL=y
# CONFIG_OMAP3_THERMAL is not set
# CONFIG_OMAP4_THERMAL is not set
# CONFIG_OMAP5_THERMAL is not set
# CONFIG_DRA752_THERMAL is not set
# end of Texas Instruments thermal drivers

#
# Samsung thermal drivers
#
# end of Samsung thermal drivers

#
# NVIDIA Tegra thermal drivers
#
# CONFIG_TEGRA_SOCTHERM is not set
# CONFIG_TEGRA_BPMP_THERMAL is not set
# CONFIG_TEGRA30_TSENSOR is not set
# end of NVIDIA Tegra thermal drivers

# CONFIG_GENERIC_ADC_THERMAL is not set

#
# Qualcomm thermal drivers
#
# CONFIG_QCOM_SPMI_ADC_TM5 is not set
# CONFIG_QCOM_SPMI_TEMP_ALARM is not set
# end of Qualcomm thermal drivers

# CONFIG_SPRD_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
CONFIG_WATCHDOG_NOWAYOUT=y
# CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED is not set
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP is not set
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC=y

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_DA9052_WATCHDOG is not set
# CONFIG_DA9055_WATCHDOG is not set
# CONFIG_DA9063_WATCHDOG is not set
CONFIG_DA9062_WATCHDOG=m
CONFIG_GPIO_WATCHDOG=m
CONFIG_MENF21BMC_WATCHDOG=m
CONFIG_MENZ069_WATCHDOG=m
CONFIG_XILINX_WATCHDOG=y
CONFIG_ZIIRAVE_WATCHDOG=m
# CONFIG_MLX_WDT is not set
# CONFIG_SL28CPLD_WATCHDOG is not set
# CONFIG_ARMADA_37XX_WATCHDOG is not set
# CONFIG_ASM9260_WATCHDOG is not set
# CONFIG_AT91RM9200_WATCHDOG is not set
# CONFIG_AT91SAM9X_WATCHDOG is not set
# CONFIG_SAMA5D4_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_977_WATCHDOG is not set
# CONFIG_FTWDT010_WATCHDOG is not set
# CONFIG_S3C2410_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_EP93XX_WATCHDOG is not set
CONFIG_OMAP_WATCHDOG=y
# CONFIG_PNX4008_WATCHDOG is not set
# CONFIG_DAVINCI_WATCHDOG is not set
# CONFIG_K3_RTI_WATCHDOG is not set
# CONFIG_ORION_WATCHDOG is not set
# CONFIG_RN5T618_WATCHDOG is not set
# CONFIG_SUNXI_WATCHDOG is not set
# CONFIG_NPCM7XX_WATCHDOG is not set
# CONFIG_STMP3XXX_RTC_WATCHDOG is not set
# CONFIG_TS4800_WATCHDOG is not set
# CONFIG_TS72XX_WATCHDOG is not set
CONFIG_MAX63XX_WATCHDOG=m
CONFIG_MAX77620_WATCHDOG=m
# CONFIG_IMX2_WDT is not set
# CONFIG_IMX7ULP_WDT is not set
# CONFIG_RETU_WATCHDOG is not set
# CONFIG_MOXART_WDT is not set
# CONFIG_ST_LPC_WATCHDOG is not set
# CONFIG_TEGRA_WATCHDOG is not set
# CONFIG_QCOM_WDT is not set
# CONFIG_MESON_GXBB_WATCHDOG is not set
# CONFIG_MESON_WATCHDOG is not set
# CONFIG_MEDIATEK_WATCHDOG is not set
# CONFIG_DIGICOLOR_WATCHDOG is not set
# CONFIG_LPC18XX_WATCHDOG is not set
# CONFIG_RENESAS_WDT is not set
# CONFIG_RENESAS_RZAWDT is not set
# CONFIG_RENESAS_RZN1WDT is not set
# CONFIG_RENESAS_RZG2LWDT is not set
CONFIG_ASPEED_WATCHDOG=y
# CONFIG_UNIPHIER_WATCHDOG is not set
# CONFIG_RTD119X_WATCHDOG is not set
# CONFIG_REALTEK_OTTO_WDT is not set
# CONFIG_SPRD_WATCHDOG is not set
# CONFIG_VISCONTI_WATCHDOG is not set
# CONFIG_MSC313E_WATCHDOG is not set
# CONFIG_APPLE_WATCHDOG is not set
# CONFIG_SUNPLUS_WATCHDOG is not set
CONFIG_ALIM7101_WDT=m
# CONFIG_SC520_WDT is not set
CONFIG_I6300ESB_WDT=m
# CONFIG_RDC321X_WDT is not set
# CONFIG_ATH79_WDT is not set
# CONFIG_BCM47XX_WDT is not set
# CONFIG_BCM2835_WDT is not set
# CONFIG_BCM_KONA_WDT is not set
# CONFIG_BCM7038_WDT is not set
# CONFIG_IMGPDC_WDT is not set
# CONFIG_MPC5200_WDT is not set
# CONFIG_MEN_A21_WDT is not set
# CONFIG_UML_WATCHDOG is not set

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m

#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=y
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
# CONFIG_SSB_PCIHOST is not set
CONFIG_SSB_SDIOHOST_POSSIBLE=y
# CONFIG_SSB_SDIOHOST is not set
CONFIG_SSB_DRIVER_GPIO=y
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
CONFIG_BCMA_HOST_SOC=y
CONFIG_BCMA_DRIVER_PCI=y
# CONFIG_BCMA_DRIVER_MIPS is not set
CONFIG_BCMA_SFLASH=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
# CONFIG_BCMA_DRIVER_GPIO is not set
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
CONFIG_MFD_ACT8945A=m
# CONFIG_MFD_SUN4I_GPADC is not set
# CONFIG_MFD_AT91_USART is not set
CONFIG_MFD_ATMEL_FLEXCOM=y
CONFIG_MFD_ATMEL_HLCDC=y
# CONFIG_MFD_BCM590XX is not set
CONFIG_MFD_BD9571MWV=m
CONFIG_MFD_AXP20X=m
CONFIG_MFD_AXP20X_I2C=m
CONFIG_MFD_CROS_EC_DEV=m
CONFIG_MFD_MADERA=m
# CONFIG_MFD_MADERA_I2C is not set
# CONFIG_MFD_CS47L15 is not set
# CONFIG_MFD_CS47L35 is not set
# CONFIG_MFD_CS47L85 is not set
# CONFIG_MFD_CS47L90 is not set
CONFIG_MFD_CS47L92=y
CONFIG_MFD_ASIC3=y
CONFIG_MFD_DA9062=m
# CONFIG_MFD_DA9063 is not set
CONFIG_MFD_DA9150=m
CONFIG_MFD_DLN2=y
# CONFIG_MFD_ENE_KB3930 is not set
# CONFIG_MFD_EXYNOS_LPASS is not set
CONFIG_MFD_GATEWORKS_GSC=m
# CONFIG_MFD_MC13XXX_I2C is not set
CONFIG_MFD_MP2629=m
# CONFIG_MFD_MXS_LRADC is not set
# CONFIG_MFD_MX25_TSADC is not set
CONFIG_MFD_HI6421_PMIC=m
CONFIG_MFD_HI6421_SPMI=m
# CONFIG_MFD_HI655X_PMIC is not set
CONFIG_HTC_PASIC3=m
CONFIG_LPC_ICH=m
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
CONFIG_MFD_88PM800=m
CONFIG_MFD_88PM805=m
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77650 is not set
CONFIG_MFD_MAX77686=m
CONFIG_MFD_MAX77693=m
CONFIG_MFD_MAX77714=m
CONFIG_MFD_MAX8907=m
CONFIG_MFD_MT6360=m
CONFIG_MFD_MT6370=m
# CONFIG_MFD_MT6397 is not set
CONFIG_MFD_MENF21BMC=m
# CONFIG_MFD_VIPERBOARD is not set
CONFIG_MFD_NTXEC=m
CONFIG_MFD_RETU=m
CONFIG_MFD_PCF50633=m
# CONFIG_PCF50633_ADC is not set
CONFIG_PCF50633_GPIO=m
CONFIG_MFD_PM8XXX=m
# CONFIG_MFD_SPMI_PMIC is not set
CONFIG_MFD_SY7636A=m
CONFIG_MFD_RDC321X=y
# CONFIG_MFD_RT4831 is not set
CONFIG_MFD_RT5033=m
# CONFIG_MFD_RT5120 is not set
CONFIG_MFD_RK808=m
# CONFIG_MFD_RN5T618 is not set
CONFIG_MFD_SI476X_CORE=m
CONFIG_MFD_SIMPLE_MFD_I2C=m
# CONFIG_MFD_SL28CPLD is not set
# CONFIG_MFD_SM501 is not set
CONFIG_MFD_SKY81452=m
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SUN6I_PRCM is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
CONFIG_MFD_LP3943=m
# CONFIG_MFD_TI_LMU is not set
CONFIG_TPS6105X=m
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
CONFIG_MFD_TPS65086=m
CONFIG_MFD_TPS65217=m
# CONFIG_MFD_TI_LP873X is not set
CONFIG_MFD_TI_LP87565=m
CONFIG_MFD_TPS65218=m
CONFIG_MFD_TPS65912=m
CONFIG_MFD_TPS65912_I2C=m
# CONFIG_MFD_WL1273_CORE is not set
CONFIG_MFD_LM3533=m
# CONFIG_MFD_TIMBERDALE is not set
CONFIG_MFD_TMIO=y
# CONFIG_MFD_T7L66XB is not set
CONFIG_MFD_TC6387XB=y
# CONFIG_MFD_TC6393XB is not set
CONFIG_MFD_TQMX86=m
CONFIG_MFD_VX855=y
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_MFD_WM8994=m
# CONFIG_MFD_STW481X is not set
# CONFIG_MFD_STM32_LPTIMER is not set
# CONFIG_MFD_STM32_TIMERS is not set
CONFIG_MFD_STMFX=m
CONFIG_MFD_ATC260X=m
CONFIG_MFD_ATC260X_I2C=m
# CONFIG_MFD_KHADAS_MCU is not set
# CONFIG_MFD_ACER_A500_EC is not set
CONFIG_MFD_QCOM_PM8008=m
CONFIG_MFD_RSMU_I2C=m
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
CONFIG_REGULATOR_VIRTUAL_CONSUMER=m
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
# CONFIG_REGULATOR_88PG86X is not set
CONFIG_REGULATOR_88PM800=m
CONFIG_REGULATOR_ACT8865=m
CONFIG_REGULATOR_ACT8945A=m
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_ANATOP is not set
CONFIG_REGULATOR_ARM_SCMI=m
CONFIG_REGULATOR_ATC260X=m
CONFIG_REGULATOR_AXP20X=m
CONFIG_REGULATOR_BD9571MWV=m
# CONFIG_REGULATOR_CROS_EC is not set
CONFIG_REGULATOR_DA9062=m
CONFIG_REGULATOR_DA9121=m
CONFIG_REGULATOR_DA9210=m
CONFIG_REGULATOR_DA9211=m
CONFIG_REGULATOR_FAN53555=m
CONFIG_REGULATOR_FAN53880=m
# CONFIG_REGULATOR_GPIO is not set
CONFIG_REGULATOR_HI6421=m
# CONFIG_REGULATOR_HI6421V530 is not set
CONFIG_REGULATOR_HI6421V600=m
CONFIG_REGULATOR_ISL9305=m
CONFIG_REGULATOR_ISL6271A=m
CONFIG_REGULATOR_LP3971=m
CONFIG_REGULATOR_LP3972=m
CONFIG_REGULATOR_LP872X=m
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_LP87565=m
# CONFIG_REGULATOR_LTC3589 is not set
CONFIG_REGULATOR_LTC3676=m
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX77620 is not set
# CONFIG_REGULATOR_MAX77650 is not set
CONFIG_REGULATOR_MAX8649=m
# CONFIG_REGULATOR_MAX8660 is not set
CONFIG_REGULATOR_MAX8893=m
# CONFIG_REGULATOR_MAX8907 is not set
CONFIG_REGULATOR_MAX8952=m
CONFIG_REGULATOR_MAX20086=m
CONFIG_REGULATOR_MAX77686=m
CONFIG_REGULATOR_MAX77693=m
CONFIG_REGULATOR_MAX77802=m
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MCP16502 is not set
# CONFIG_REGULATOR_MP5416 is not set
CONFIG_REGULATOR_MP8859=m
CONFIG_REGULATOR_MP886X=m
# CONFIG_REGULATOR_MPQ7920 is not set
CONFIG_REGULATOR_MT6311=m
# CONFIG_REGULATOR_MT6315 is not set
CONFIG_REGULATOR_MT6360=m
CONFIG_REGULATOR_MT6370=m
CONFIG_REGULATOR_PBIAS=m
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PCF50633 is not set
CONFIG_REGULATOR_PF8X00=m
CONFIG_REGULATOR_PFUZE100=m
# CONFIG_REGULATOR_PV88060 is not set
CONFIG_REGULATOR_PV88080=m
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_PWM is not set
# CONFIG_REGULATOR_QCOM_RPMH is not set
# CONFIG_REGULATOR_QCOM_SPMI is not set
# CONFIG_REGULATOR_QCOM_USB_VBUS is not set
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RK808=m
CONFIG_REGULATOR_RT4801=m
CONFIG_REGULATOR_RT5033=m
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT5759 is not set
CONFIG_REGULATOR_RT6160=m
CONFIG_REGULATOR_RT6245=m
# CONFIG_REGULATOR_RTQ2134 is not set
CONFIG_REGULATOR_RTMV20=m
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_S2MPA01 is not set
# CONFIG_REGULATOR_S2MPS11 is not set
# CONFIG_REGULATOR_S5M8767 is not set
# CONFIG_REGULATOR_SC2731 is not set
CONFIG_REGULATOR_SKY81452=m
CONFIG_REGULATOR_SLG51000=m
# CONFIG_REGULATOR_STM32_BOOSTER is not set
# CONFIG_REGULATOR_STM32_VREFBUF is not set
# CONFIG_REGULATOR_STM32_PWR is not set
CONFIG_REGULATOR_TI_ABB=m
# CONFIG_REGULATOR_STW481X_VMMC is not set
CONFIG_REGULATOR_SY7636A=m
# CONFIG_REGULATOR_SY8106A is not set
CONFIG_REGULATOR_SY8824X=m
# CONFIG_REGULATOR_SY8827N is not set
CONFIG_REGULATOR_TPS51632=m
# CONFIG_REGULATOR_TPS6105X is not set
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS6286X=m
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=m
CONFIG_REGULATOR_TPS65086=m
CONFIG_REGULATOR_TPS65132=m
# CONFIG_REGULATOR_TPS65217 is not set
CONFIG_REGULATOR_TPS65218=m
# CONFIG_REGULATOR_TPS65912 is not set
# CONFIG_REGULATOR_TPS68470 is not set
# CONFIG_REGULATOR_UNIPHIER is not set
CONFIG_REGULATOR_VCTRL=y
CONFIG_REGULATOR_WM8994=m
CONFIG_REGULATOR_QCOM_LABIBB=y
CONFIG_RC_CORE=y
# CONFIG_BPF_LIRC_MODE2 is not set
CONFIG_LIRC=y
# CONFIG_RC_MAP is not set
# CONFIG_RC_DECODERS is not set
CONFIG_RC_DEVICES=y
# CONFIG_IR_ENE is not set
# CONFIG_IR_FINTEK is not set
CONFIG_IR_GPIO_CIR=y
# CONFIG_IR_GPIO_TX is not set
# CONFIG_IR_HIX5HD2 is not set
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
CONFIG_IR_IMON=m
CONFIG_IR_IMON_RAW=m
# CONFIG_IR_ITE_CIR is not set
CONFIG_IR_MCEUSB=y
# CONFIG_IR_MESON is not set
# CONFIG_IR_MESON_TX is not set
# CONFIG_IR_MTK is not set
# CONFIG_IR_NUVOTON is not set
CONFIG_IR_PWM_TX=y
# CONFIG_IR_REDRAT3 is not set
CONFIG_IR_RX51=y
# CONFIG_IR_SERIAL is not set
CONFIG_IR_STREAMZAP=m
# CONFIG_IR_SUNXI is not set
CONFIG_IR_TOY=y
CONFIG_IR_TTUSBIR=y
# CONFIG_IR_WINBOND_CIR is not set
# CONFIG_RC_ATI_REMOTE is not set
# CONFIG_RC_LOOPBACK is not set
# CONFIG_RC_ST is not set
CONFIG_RC_XBOX_DVD=m
# CONFIG_IR_IMG is not set
CONFIG_CEC_CORE=m
CONFIG_CEC_NOTIFIER=y

#
# CEC support
#
# CONFIG_MEDIA_CEC_RC is not set
CONFIG_MEDIA_CEC_SUPPORT=y
# CONFIG_CEC_CH7322 is not set
CONFIG_CEC_CROS_EC=m
# CONFIG_CEC_MESON_AO is not set
# CONFIG_CEC_MESON_G12A_AO is not set
# CONFIG_CEC_GPIO is not set
# CONFIG_CEC_SAMSUNG_S5P is not set
# CONFIG_CEC_STI is not set
# CONFIG_CEC_STM32 is not set
# CONFIG_CEC_TEGRA is not set
CONFIG_USB_PULSE8_CEC=m
# CONFIG_USB_RAINSHADOW_CEC is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_TEGRA_HOST1X is not set
# CONFIG_IMX_IPUV3_CORE is not set
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_USE_DYNAMIC_DEBUG=y
# CONFIG_DRM_KUNIT_TEST is not set
CONFIG_DRM_KMS_HELPER=m
# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set
CONFIG_DRM_DEBUG_MODESET_LOCK=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_DP_AUX_BUS=m
CONFIG_DRM_DISPLAY_HELPER=m
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
# CONFIG_DRM_DP_AUX_CHARDEV is not set
CONFIG_DRM_DP_CEC=y
CONFIG_DRM_TTM=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_DMA_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m
CONFIG_DRM_SCHED=m

#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_I2C_NXP_TDA998X=m
CONFIG_DRM_I2C_NXP_TDA9950=m
# end of I2C encoder or helper chips

#
# ARM devices
#
# CONFIG_DRM_HDLCD is not set
CONFIG_DRM_MALI_DISPLAY=m
CONFIG_DRM_KOMEDA=m
# end of ARM devices

CONFIG_DRM_RADEON=m
# CONFIG_DRM_RADEON_USERPTR is not set
# CONFIG_DRM_AMDGPU is not set
CONFIG_DRM_NOUVEAU=m
# CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT is not set
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_NOUVEAU_DEBUG_MMU=y
CONFIG_NOUVEAU_DEBUG_PUSH=y
# CONFIG_DRM_NOUVEAU_BACKLIGHT is not set
# CONFIG_DRM_KMB_DISPLAY is not set
CONFIG_DRM_VGEM=m
CONFIG_DRM_VKMS=m
# CONFIG_DRM_EXYNOS is not set
CONFIG_DRM_UDL=m
CONFIG_DRM_AST=m
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_ARMADA is not set
CONFIG_DRM_ATMEL_HLCDC=m
# CONFIG_DRM_RCAR_DU is not set
CONFIG_DRM_RCAR_DW_HDMI=m
CONFIG_DRM_RCAR_USE_LVDS=y
CONFIG_DRM_RCAR_MIPI_DSI=m
# CONFIG_DRM_SHMOBILE is not set
# CONFIG_DRM_SUN4I is not set
# CONFIG_DRM_OMAP is not set
CONFIG_DRM_TILCDC=m
CONFIG_DRM_QXL=m
# CONFIG_DRM_VIRTIO_GPU is not set
# CONFIG_DRM_MSM is not set
# CONFIG_DRM_FSL_DCU is not set
# CONFIG_DRM_TEGRA is not set
CONFIG_DRM_STM=m
CONFIG_DRM_STM_DSI=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_PANEL_ARM_VERSATILE=m
# CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596 is not set
CONFIG_DRM_PANEL_BOE_BF060Y8M_AJ0=m
CONFIG_DRM_PANEL_BOE_HIMAX8279D=m
# CONFIG_DRM_PANEL_BOE_TV101WUM_NL6 is not set
# CONFIG_DRM_PANEL_DSI_CM is not set
CONFIG_DRM_PANEL_LVDS=m
CONFIG_DRM_PANEL_SIMPLE=m
CONFIG_DRM_PANEL_EDP=m
CONFIG_DRM_PANEL_EBBG_FT8719=m
CONFIG_DRM_PANEL_ELIDA_KD35T133=m
# CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02 is not set
CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D=m
# CONFIG_DRM_PANEL_ILITEK_ILI9881C is not set
CONFIG_DRM_PANEL_INNOLUX_P079ZCA=m
# CONFIG_DRM_PANEL_JDI_LT070ME05000 is not set
# CONFIG_DRM_PANEL_JDI_R63452 is not set
CONFIG_DRM_PANEL_KHADAS_TS050=m
CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04=m
# CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W is not set
# CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT35510 is not set
CONFIG_DRM_PANEL_NOVATEK_NT35560=m
CONFIG_DRM_PANEL_NOVATEK_NT35950=m
CONFIG_DRM_PANEL_NOVATEK_NT36672A=m
CONFIG_DRM_PANEL_MANTIX_MLAF057WE51=m
CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO=m
CONFIG_DRM_PANEL_ORISETECH_OTM8009A=m
CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS=m
CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00=m
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
CONFIG_DRM_PANEL_RAYDIUM_RM67191=m
CONFIG_DRM_PANEL_RAYDIUM_RM68200=m
CONFIG_DRM_PANEL_RONBO_RB070D30=m
CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20=m
CONFIG_DRM_PANEL_SAMSUNG_S6D16D0=m
CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2=m
CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03=m
CONFIG_DRM_PANEL_SAMSUNG_S6E63M0=m
CONFIG_DRM_PANEL_SAMSUNG_S6E63M0_DSI=m
CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01=m
CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=m
CONFIG_DRM_PANEL_SAMSUNG_SOFEF00=m
CONFIG_DRM_PANEL_SEIKO_43WVF1G=m
CONFIG_DRM_PANEL_SHARP_LQ101R1SX01=m
CONFIG_DRM_PANEL_SHARP_LS037V7DW01=m
CONFIG_DRM_PANEL_SHARP_LS043T1LE01=m
CONFIG_DRM_PANEL_SHARP_LS060T1SX01=m
CONFIG_DRM_PANEL_SITRONIX_ST7701=m
CONFIG_DRM_PANEL_SITRONIX_ST7703=m
# CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521 is not set
# CONFIG_DRM_PANEL_TDO_TL070WSH30 is not set
# CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA is not set
CONFIG_DRM_PANEL_VISIONOX_RM69299=m
CONFIG_DRM_PANEL_XINPENG_XPP055C272=m
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_CDNS_DSI=m
# CONFIG_DRM_CHIPONE_ICN6211 is not set
CONFIG_DRM_CHRONTEL_CH7033=m
CONFIG_DRM_CROS_EC_ANX7688=m
# CONFIG_DRM_DISPLAY_CONNECTOR is not set
# CONFIG_DRM_FSL_LDB is not set
CONFIG_DRM_ITE_IT6505=m
CONFIG_DRM_LONTIUM_LT8912B=m
# CONFIG_DRM_LONTIUM_LT9211 is not set
CONFIG_DRM_LONTIUM_LT9611=m
# CONFIG_DRM_LONTIUM_LT9611UXC is not set
# CONFIG_DRM_ITE_IT66121 is not set
CONFIG_DRM_LVDS_CODEC=m
# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set
CONFIG_DRM_NWL_MIPI_DSI=m
CONFIG_DRM_NXP_PTN3460=m
# CONFIG_DRM_PARADE_PS8622 is not set
CONFIG_DRM_PARADE_PS8640=m
CONFIG_DRM_SIL_SII8620=m
# CONFIG_DRM_SII902X is not set
# CONFIG_DRM_SII9234 is not set
# CONFIG_DRM_SIMPLE_BRIDGE is not set
CONFIG_DRM_THINE_THC63LVD1024=m
CONFIG_DRM_TOSHIBA_TC358762=m
# CONFIG_DRM_TOSHIBA_TC358764 is not set
CONFIG_DRM_TOSHIBA_TC358767=m
# CONFIG_DRM_TOSHIBA_TC358768 is not set
CONFIG_DRM_TOSHIBA_TC358775=m
CONFIG_DRM_TI_DLPC3433=m
CONFIG_DRM_TI_TFP410=m
# CONFIG_DRM_TI_SN65DSI83 is not set
# CONFIG_DRM_TI_SN65DSI86 is not set
# CONFIG_DRM_TI_TPD12S015 is not set
CONFIG_DRM_ANALOGIX_ANX6345=m
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
CONFIG_DRM_ANALOGIX_DP=m
CONFIG_DRM_ANALOGIX_ANX7625=m
CONFIG_DRM_I2C_ADV7511=m
# CONFIG_DRM_I2C_ADV7511_CEC is not set
CONFIG_DRM_CDNS_MHDP8546=m
CONFIG_DRM_CDNS_MHDP8546_J721E=y
# CONFIG_DRM_IMX8QM_LDB is not set
# CONFIG_DRM_IMX8QXP_LDB is not set
# CONFIG_DRM_IMX8QXP_PIXEL_COMBINER is not set
# CONFIG_DRM_IMX8QXP_PIXEL_LINK_TO_DPI is not set
CONFIG_DRM_DW_HDMI=m
CONFIG_DRM_DW_HDMI_CEC=m
CONFIG_DRM_DW_MIPI_DSI=m
# end of Display Interface Bridges

CONFIG_DRM_STI=m
# CONFIG_DRM_INGENIC is not set
# CONFIG_DRM_V3D is not set
CONFIG_DRM_ETNAVIV=m
# CONFIG_DRM_ETNAVIV_THERMAL is not set
# CONFIG_DRM_HISI_HIBMC is not set
# CONFIG_DRM_LOGICVC is not set
CONFIG_DRM_MXS=y
CONFIG_DRM_MXSFB=m
CONFIG_DRM_IMX_LCDIF=m
# CONFIG_DRM_MESON is not set
CONFIG_DRM_ARCPGU=m
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
CONFIG_DRM_GM12U320=m
# CONFIG_DRM_SIMPLEDRM is not set
CONFIG_DRM_PL111=m
# CONFIG_DRM_TVE200 is not set
# CONFIG_DRM_LIMA is not set
CONFIG_DRM_PANFROST=m
CONFIG_DRM_ASPEED_GFX=m
CONFIG_DRM_MCDE=m
# CONFIG_DRM_TIDSS is not set
# CONFIG_DRM_GUD is not set
CONFIG_DRM_SSD130X=m
CONFIG_DRM_SSD130X_I2C=m
# CONFIG_DRM_SPRD is not set
CONFIG_DRM_LEGACY=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_MGA=m
CONFIG_DRM_VIA=m
CONFIG_DRM_SAVAGE=m
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=m
CONFIG_DRM_NOMODESET=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
# CONFIG_FB is not set
# CONFIG_MMP_DISP is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
CONFIG_BACKLIGHT_LM3533=m
# CONFIG_BACKLIGHT_OMAP1 is not set
# CONFIG_BACKLIGHT_PWM is not set
CONFIG_BACKLIGHT_MT6370=m
CONFIG_BACKLIGHT_QCOM_WLED=y
CONFIG_BACKLIGHT_ADP8860=m
CONFIG_BACKLIGHT_ADP8870=m
CONFIG_BACKLIGHT_PCF50633=m
CONFIG_BACKLIGHT_LM3630A=m
CONFIG_BACKLIGHT_LM3639=m
CONFIG_BACKLIGHT_LP855X=m
CONFIG_BACKLIGHT_SKY81452=m
CONFIG_BACKLIGHT_TPS65217=m
CONFIG_BACKLIGHT_GPIO=m
# CONFIG_BACKLIGHT_LV5207LP is not set
CONFIG_BACKLIGHT_BD6107=m
CONFIG_BACKLIGHT_ARCXCNN=m
CONFIG_BACKLIGHT_LED=m
# end of Backlight & LCD device support

CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
# end of Console display driver support
# end of Graphics support

# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
# CONFIG_HID_GENERIC is not set

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
CONFIG_HID_ACCUTOUCH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_ASUS=y
CONFIG_HID_AUREAL=m
CONFIG_HID_BELKIN=y
# CONFIG_HID_BETOP_FF is not set
CONFIG_HID_BIGBEN_FF=m
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=m
CONFIG_HID_CORSAIR=y
CONFIG_HID_COUGAR=m
CONFIG_HID_MACALLY=y
# CONFIG_HID_CMEDIA is not set
CONFIG_HID_CP2112=m
# CONFIG_HID_CREATIVE_SB0540 is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
CONFIG_HID_EMS_FF=y
# CONFIG_HID_ELAN is not set
CONFIG_HID_ELECOM=m
CONFIG_HID_ELO=y
CONFIG_HID_EZKEY=m
CONFIG_HID_FT260=m
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
CONFIG_HID_GLORIOUS=y
# CONFIG_HID_HOLTEK is not set
CONFIG_HID_VIVALDI_COMMON=m
CONFIG_HID_GOOGLE_HAMMER=m
CONFIG_HID_VIVALDI=m
CONFIG_HID_GT683R=m
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_VIEWSONIC=y
CONFIG_HID_VRC2=m
CONFIG_HID_XIAOMI=y
CONFIG_HID_GYRATION=y
CONFIG_HID_ICADE=m
CONFIG_HID_ITE=y
# CONFIG_HID_JABRA is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=y
CONFIG_HID_LED=y
CONFIG_HID_LENOVO=m
CONFIG_HID_LETSKETCH=m
# CONFIG_HID_LOGITECH is not set
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
CONFIG_HID_MAYFLASH=m
CONFIG_HID_MEGAWORLD_FF=m
CONFIG_HID_REDRAGON=y
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=y
CONFIG_HID_NINTENDO=y
# CONFIG_NINTENDO_FF is not set
CONFIG_HID_NTI=m
CONFIG_HID_NTRIG=y
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PENMOUNT=y
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
CONFIG_HID_PLAYSTATION=m
# CONFIG_PLAYSTATION_FF is not set
# CONFIG_HID_PXRC is not set
# CONFIG_HID_RAZER is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_RETRODE is not set
CONFIG_HID_ROCCAT=y
CONFIG_HID_SAITEK=y
# CONFIG_HID_SAMSUNG is not set
CONFIG_HID_SEMITEK=y
CONFIG_HID_SIGMAMICRO=y
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=y
CONFIG_HID_STEAM=m
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
# CONFIG_HID_SMARTJOYPLUS is not set
CONFIG_HID_TIVO=y
# CONFIG_HID_TOPSEED is not set
CONFIG_HID_TOPRE=m
CONFIG_HID_THINGM=y
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_UDRAW_PS3=m
CONFIG_HID_U2FZERO=m
# CONFIG_HID_WACOM is not set
CONFIG_HID_WIIMOTE=y
CONFIG_HID_XINMO=y
CONFIG_HID_ZEROPLUS=y
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=y
CONFIG_HID_SENSOR_HUB=m
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=y
CONFIG_HID_MCP2221=m
# end of Special HID drivers

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y
# end of USB HID support

#
# I2C HID support
#
# CONFIG_I2C_HID_OF is not set
# CONFIG_I2C_HID_OF_ELAN is not set
# CONFIG_I2C_HID_OF_GOODIX is not set
# end of I2C HID support

#
# Intel ISH HID support
#
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_LED_TRIG=y
CONFIG_USB_ULPI_BUS=y
CONFIG_USB_CONN_GPIO=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
CONFIG_USB_FEW_INIT_RETRIES=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set
# CONFIG_USB_OTG_FSM is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=m

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_XHCI_HCD=m
CONFIG_USB_XHCI_DBGCAP=y
CONFIG_USB_XHCI_PCI=m
# CONFIG_USB_XHCI_PCI_RENESAS is not set
CONFIG_USB_XHCI_PLATFORM=m
# CONFIG_USB_XHCI_HISTB is not set
# CONFIG_USB_XHCI_MTK is not set
# CONFIG_USB_XHCI_MVEBU is not set
# CONFIG_USB_XHCI_RCAR is not set
# CONFIG_USB_BRCMSTB is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_FOTG210_HCD=y
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SPEAR is not set
# CONFIG_USB_OHCI_HCD_STI is not set
# CONFIG_USB_OHCI_HCD_S3C2410 is not set
CONFIG_USB_OHCI_HCD_LPC32XX=m
# CONFIG_USB_OHCI_HCD_AT91 is not set
# CONFIG_USB_OHCI_HCD_OMAP3 is not set
# CONFIG_USB_OHCI_HCD_DAVINCI is not set
CONFIG_USB_OHCI_HCD_PCI=m
CONFIG_USB_OHCI_HCD_SSB=y
# CONFIG_USB_OHCI_SH is not set
# CONFIG_USB_OHCI_EXYNOS is not set
# CONFIG_USB_CNS3XXX_OHCI is not set
CONFIG_USB_OHCI_HCD_PLATFORM=m
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_UHCI_SUPPORT_NON_PCI_HC=y
CONFIG_USB_UHCI_PLATFORM=y
CONFIG_USB_UHCI_ASPEED=y
CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=y
CONFIG_USB_SL811_HCD_ISO=y
CONFIG_USB_R8A66597_HCD=m
CONFIG_USB_HCD_BCMA=m
CONFIG_USB_HCD_SSB=m
# CONFIG_USB_HCD_TEST_MODE is not set
# CONFIG_USB_RENESAS_USBHS is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=y
CONFIG_USB_WDM=m
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#

#
# USB Imaging devices
#
CONFIG_USB_MDC800=y
CONFIG_USB_CDNS_SUPPORT=m
# CONFIG_USB_CDNS3 is not set
# CONFIG_USB_MTU3 is not set
CONFIG_USB_MUSB_HDRC=y
# CONFIG_USB_MUSB_HOST is not set
CONFIG_USB_MUSB_GADGET=y
# CONFIG_USB_MUSB_DUAL_ROLE is not set

#
# Platform Glue Layer
#
CONFIG_USB_MUSB_TUSB6010=y
CONFIG_USB_MUSB_OMAP2PLUS=y
# CONFIG_USB_MUSB_DSPS is not set
# CONFIG_USB_MUSB_UX500 is not set

#
# MUSB DMA mode
#
CONFIG_MUSB_PIO_ONLY=y
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
CONFIG_USB_CHIPIDEA=y
# CONFIG_USB_CHIPIDEA_UDC is not set
CONFIG_USB_CHIPIDEA_MSM=y
# CONFIG_USB_CHIPIDEA_IMX is not set
# CONFIG_USB_CHIPIDEA_GENERIC is not set
# CONFIG_USB_CHIPIDEA_TEGRA is not set
CONFIG_USB_ISP1760=y
CONFIG_USB_ISP1760_HCD=y
CONFIG_USB_ISP1760_HOST_ROLE=y
# CONFIG_USB_ISP1760_GADGET_ROLE is not set
# CONFIG_USB_ISP1760_DUAL_ROLE is not set

#
# USB port drivers
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
# CONFIG_USB_SERIAL_GENERIC is not set
CONFIG_USB_SERIAL_SIMPLE=m
# CONFIG_USB_SERIAL_AIRCABLE is not set
CONFIG_USB_SERIAL_ARK3116=y
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=y
# CONFIG_USB_SERIAL_WHITEHEAT is not set
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=y
CONFIG_USB_SERIAL_CYPRESS_M8=m
# CONFIG_USB_SERIAL_EMPEG is not set
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
# CONFIG_USB_SERIAL_IR is not set
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
# CONFIG_USB_SERIAL_F81232 is not set
# CONFIG_USB_SERIAL_F8153X is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
# CONFIG_USB_SERIAL_METRO is not set
# CONFIG_USB_SERIAL_MOS7720 is not set
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MXUPORT=m
# CONFIG_USB_SERIAL_NAVMAN is not set
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_SERIAL_QCAUX=y
# CONFIG_USB_SERIAL_QUALCOMM is not set
CONFIG_USB_SERIAL_SPCP8X5=y
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
# CONFIG_USB_SERIAL_CYBERJACK is not set
CONFIG_USB_SERIAL_WWAN=y
CONFIG_USB_SERIAL_OPTION=y
CONFIG_USB_SERIAL_OMNINET=y
CONFIG_USB_SERIAL_OPTICON=y
# CONFIG_USB_SERIAL_XSENS_MT is not set
CONFIG_USB_SERIAL_WISHBONE=y
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_QT2=y
CONFIG_USB_SERIAL_UPD78F0730=m
# CONFIG_USB_SERIAL_XR is not set
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=y
CONFIG_USB_EMI26=y
CONFIG_USB_ADUTUX=y
CONFIG_USB_SEVSEG=y
# CONFIG_USB_LEGOTOWER is not set
CONFIG_USB_LCD=y
CONFIG_USB_CYPRESS_CY7C63=y
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=y
# CONFIG_USB_QCOM_EUD is not set
CONFIG_APPLE_MFI_FASTCHARGE=m
CONFIG_USB_SISUSBVGA=y
# CONFIG_USB_LD is not set
CONFIG_USB_TRANCEVIBRATOR=y
CONFIG_USB_IOWARRIOR=m
CONFIG_USB_TEST=y
CONFIG_USB_EHSET_TEST_FIXTURE=y
CONFIG_USB_ISIGHTFW=y
CONFIG_USB_YUREX=m
# CONFIG_USB_EZUSB_FX2 is not set
CONFIG_USB_HUB_USB251XB=m
CONFIG_USB_HSIC_USB3503=m
CONFIG_USB_HSIC_USB4604=m
# CONFIG_USB_LINK_LAYER_TEST is not set
CONFIG_USB_CHAOSKEY=m
# CONFIG_BRCM_USB_PINMAP is not set
CONFIG_USB_ONBOARD_HUB=y

#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
# CONFIG_ISP1301_OMAP is not set
# CONFIG_NOP_USB_XCEIV is not set
CONFIG_USB_GPIO_VBUS=y
CONFIG_TAHVO_USB=m
# CONFIG_TAHVO_USB_HOST_BY_DEFAULT is not set
CONFIG_USB_ISP1301=m
# CONFIG_USB_TEGRA_PHY is not set
# CONFIG_USB_ULPI is not set
# CONFIG_JZ4770_PHY is not set
# end of USB Physical Layer drivers

CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2

#
# USB Peripheral Controller
#
# CONFIG_USB_LPC32XX is not set
# CONFIG_USB_FUSB300 is not set
CONFIG_USB_FOTG210_UDC=y
CONFIG_USB_GR_UDC=y
# CONFIG_USB_R8A66597 is not set
# CONFIG_USB_RENESAS_USB3 is not set
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
CONFIG_USB_SNP_CORE=y
CONFIG_USB_SNP_UDC_PLAT=y
CONFIG_USB_M66592=m
CONFIG_USB_BDC_UDC=m
CONFIG_USB_AMD5536UDC=m
# CONFIG_USB_NET2272 is not set
CONFIG_USB_NET2280=y
CONFIG_USB_GOKU=y
CONFIG_USB_EG20T=y
CONFIG_USB_GADGET_XILINX=m
# CONFIG_USB_ASPEED_UDC is not set
CONFIG_USB_ASPEED_VHUB=y
# CONFIG_USB_DUMMY_HCD is not set
# end of USB Peripheral Controller

CONFIG_USB_LIBCOMPOSITE=y
CONFIG_USB_F_PRINTER=y
# CONFIG_USB_CONFIGFS is not set

#
# USB Gadget precomposed configurations
#
# CONFIG_USB_ZERO is not set
CONFIG_USB_GADGETFS=m
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_G_SERIAL is not set
CONFIG_USB_G_PRINTER=y
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_RAW_GADGET is not set
# end of USB Gadget precomposed configurations

# CONFIG_TYPEC is not set
CONFIG_USB_ROLE_SWITCH=y
CONFIG_MMC=y
CONFIG_PWRSEQ_EMMC=m
CONFIG_PWRSEQ_SIMPLE=y
CONFIG_SDIO_UART=y
CONFIG_MMC_TEST=y

#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_DEBUG=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=y
# CONFIG_MMC_RICOH_MMC is not set
CONFIG_MMC_SDHCI_PLTFM=y
# CONFIG_MMC_SDHCI_OF_ARASAN is not set
# CONFIG_MMC_SDHCI_OF_ASPEED is not set
CONFIG_MMC_SDHCI_OF_AT91=y
# CONFIG_MMC_SDHCI_OF_ESDHC is not set
# CONFIG_MMC_SDHCI_OF_DWCMSHC is not set
# CONFIG_MMC_SDHCI_OF_SPARX5 is not set
# CONFIG_MMC_SDHCI_CADENCE is not set
# CONFIG_MMC_SDHCI_CNS3XXX is not set
# CONFIG_MMC_SDHCI_ESDHC_IMX is not set
# CONFIG_MMC_SDHCI_DOVE is not set
# CONFIG_MMC_SDHCI_TEGRA is not set
# CONFIG_MMC_SDHCI_S3C is not set
# CONFIG_MMC_SDHCI_PXAV3 is not set
# CONFIG_MMC_SDHCI_PXAV2 is not set
# CONFIG_MMC_SDHCI_SPEAR is not set
# CONFIG_MMC_SDHCI_BCM_KONA is not set
CONFIG_MMC_SDHCI_F_SDH30=m
CONFIG_MMC_SDHCI_MILBEAUT=m
# CONFIG_MMC_SDHCI_IPROC is not set
# CONFIG_MMC_MESON_GX is not set
# CONFIG_MMC_MESON_MX_SDHC is not set
# CONFIG_MMC_MESON_MX_SDIO is not set
# CONFIG_MMC_MOXART is not set
# CONFIG_MMC_SDHCI_ST is not set
# CONFIG_MMC_OMAP is not set
CONFIG_MMC_OMAP_HS=m
CONFIG_MMC_ALCOR=m
# CONFIG_MMC_SDHCI_MSM is not set
CONFIG_MMC_TIFM_SD=m
# CONFIG_MMC_MVSDIO is not set
# CONFIG_MMC_DAVINCI is not set
# CONFIG_MMC_S3C is not set
# CONFIG_MMC_SDHCI_SPRD is not set
CONFIG_MMC_TMIO_CORE=m
CONFIG_MMC_TMIO=m
# CONFIG_MMC_SDHI is not set
# CONFIG_MMC_UNIPHIER is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MMC_DW=m
CONFIG_MMC_DW_PLTFM=m
CONFIG_MMC_DW_BLUEFIELD=m
CONFIG_MMC_DW_EXYNOS=m
CONFIG_MMC_DW_HI3798CV200=m
# CONFIG_MMC_DW_K3 is not set
# CONFIG_MMC_DW_PCI is not set
# CONFIG_MMC_SH_MMCIF is not set
# CONFIG_MMC_VUB300 is not set
CONFIG_MMC_USHC=y
CONFIG_MMC_WMT=m
CONFIG_MMC_USDHI6ROL0=y
# CONFIG_MMC_REALTEK_USB is not set
CONFIG_MMC_CQHCI=y
CONFIG_MMC_HSQ=y
CONFIG_MMC_TOSHIBA_PCI=y
# CONFIG_MMC_BCM2835 is not set
CONFIG_MMC_MTK=m
# CONFIG_MMC_SDHCI_XENON is not set
CONFIG_MMC_SDHCI_OMAP=y
CONFIG_MMC_SDHCI_AM654=y
# CONFIG_MMC_OWL is not set
# CONFIG_MMC_LITEX is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_CLASS_FLASH=y
CONFIG_LEDS_CLASS_MULTICOLOR=y
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y

#
# LED drivers
#
# CONFIG_LEDS_AN30259A is not set
# CONFIG_LEDS_ARIEL is not set
# CONFIG_LEDS_AW2013 is not set
# CONFIG_LEDS_BCM6328 is not set
CONFIG_LEDS_BCM6358=m
# CONFIG_LEDS_TURRIS_OMNIA is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3533 is not set
CONFIG_LEDS_LM3642=m
CONFIG_LEDS_LM3692X=m
# CONFIG_LEDS_S3C24XX is not set
# CONFIG_LEDS_COBALT_QUBE is not set
# CONFIG_LEDS_COBALT_RAQ is not set
CONFIG_LEDS_PCA9532=m
CONFIG_LEDS_PCA9532_GPIO=y
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
CONFIG_LEDS_LP3952=m
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_LP55XX_COMMON is not set
CONFIG_LEDS_LP8860=m
CONFIG_LEDS_PCA955X=m
# CONFIG_LEDS_PCA955X_GPIO is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PWM is not set
CONFIG_LEDS_REGULATOR=m
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_LT3593=y
CONFIG_LEDS_NS2=y
CONFIG_LEDS_NETXBIG=y
# CONFIG_LEDS_ASIC3 is not set
CONFIG_LEDS_TCA6507=m
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_MENF21BMC is not set
CONFIG_LEDS_IS31FL319X=m
CONFIG_LEDS_IS31FL32XX=m

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_SYSCON=y
CONFIG_LEDS_PM8058=m
CONFIG_LEDS_MLXREG=y
CONFIG_LEDS_USER=y
CONFIG_LEDS_TI_LMU_COMMON=m
CONFIG_LEDS_LM3697=m
CONFIG_LEDS_TPS6105X=m
# CONFIG_LEDS_IP30 is not set
# CONFIG_LEDS_BCM63138 is not set
# CONFIG_LEDS_LGM is not set

#
# Flash and Torch LED drivers
#
CONFIG_LEDS_AAT1290=y
CONFIG_LEDS_AS3645A=m
CONFIG_LEDS_KTD2692=y
CONFIG_LEDS_LM3601X=m
# CONFIG_LEDS_MAX77693 is not set
# CONFIG_LEDS_MT6360 is not set
CONFIG_LEDS_RT4505=m
CONFIG_LEDS_RT8515=m
CONFIG_LEDS_SGM3140=m

#
# RGB LED drivers
#
CONFIG_LEDS_PWM_MULTICOLOR=y
# CONFIG_LEDS_QCOM_LPG is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=y
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_ACTIVITY=m
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_LEDS_TRIGGER_PANIC is not set
CONFIG_LEDS_TRIGGER_PATTERN=m
CONFIG_LEDS_TRIGGER_AUDIO=y
CONFIG_LEDS_TRIGGER_TTY=y

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_LIB_KUNIT_TEST=m
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_DEV is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_88PM80X is not set
CONFIG_RTC_DRV_ABB5ZES3=m
CONFIG_RTC_DRV_ABEOZ9=m
CONFIG_RTC_DRV_ABX80X=m
# CONFIG_RTC_DRV_BRCMSTB is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_HYM8563 is not set
CONFIG_RTC_DRV_MAX6900=m
# CONFIG_RTC_DRV_MAX8907 is not set
# CONFIG_RTC_DRV_MAX77686 is not set
# CONFIG_RTC_DRV_NCT3018Y is not set
CONFIG_RTC_DRV_RK808=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_ISL12022=m
# CONFIG_RTC_DRV_ISL12026 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
CONFIG_RTC_DRV_PCF85063=m
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
# CONFIG_RTC_DRV_PCF8583 is not set
CONFIG_RTC_DRV_M41T80=m
# CONFIG_RTC_DRV_M41T80_WDT is not set
CONFIG_RTC_DRV_BQ32K=m
CONFIG_RTC_DRV_S35390A=m
# CONFIG_RTC_DRV_FM3130 is not set
CONFIG_RTC_DRV_RX8010=m
# CONFIG_RTC_DRV_RX8581 is not set
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
CONFIG_RTC_DRV_RV3028=m
CONFIG_RTC_DRV_RV3032=m
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_S5M is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=m

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_PCF2127=m
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=m
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_DS2404=m
# CONFIG_RTC_DRV_DA9063 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_M48T86=y
# CONFIG_RTC_DRV_M48T35 is not set
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=y
# CONFIG_RTC_DRV_GAMECUBE is not set
# CONFIG_RTC_DRV_SC27XX is not set
CONFIG_RTC_DRV_SPEAR=y
CONFIG_RTC_DRV_PCF50633=m
CONFIG_RTC_DRV_ZYNQMP=m
CONFIG_RTC_DRV_CROS_EC=m
CONFIG_RTC_DRV_NTXEC=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_ASM9260 is not set
# CONFIG_RTC_DRV_DAVINCI is not set
# CONFIG_RTC_DRV_DIGICOLOR is not set
# CONFIG_RTC_DRV_FSL_FTM_ALARM is not set
# CONFIG_RTC_DRV_MESON is not set
# CONFIG_RTC_DRV_MESON_VRTC is not set
CONFIG_RTC_DRV_OMAP=y
# CONFIG_RTC_DRV_S3C is not set
# CONFIG_RTC_DRV_EP93XX is not set
# CONFIG_RTC_DRV_AT91RM9200 is not set
# CONFIG_RTC_DRV_AT91SAM9 is not set
# CONFIG_RTC_DRV_RZN1 is not set
# CONFIG_RTC_DRV_GENERIC is not set
# CONFIG_RTC_DRV_VT8500 is not set
# CONFIG_RTC_DRV_SUN6I is not set
# CONFIG_RTC_DRV_SUNXI is not set
# CONFIG_RTC_DRV_MV is not set
# CONFIG_RTC_DRV_ARMADA38X is not set
# CONFIG_RTC_DRV_CADENCE is not set
CONFIG_RTC_DRV_FTRTC010=y
# CONFIG_RTC_DRV_STMP is not set
# CONFIG_RTC_DRV_JZ4740 is not set
# CONFIG_RTC_DRV_LPC24XX is not set
# CONFIG_RTC_DRV_LPC32XX is not set
# CONFIG_RTC_DRV_PM8XXX is not set
# CONFIG_RTC_DRV_TEGRA is not set
# CONFIG_RTC_DRV_MXC is not set
# CONFIG_RTC_DRV_MXC_V2 is not set
# CONFIG_RTC_DRV_SNVS is not set
# CONFIG_RTC_DRV_MOXART is not set
# CONFIG_RTC_DRV_MT2712 is not set
# CONFIG_RTC_DRV_MT6397 is not set
# CONFIG_RTC_DRV_MT7622 is not set
# CONFIG_RTC_DRV_XGENE is not set
CONFIG_RTC_DRV_R7301=y
# CONFIG_RTC_DRV_STM32 is not set
# CONFIG_RTC_DRV_RTD119X is not set
CONFIG_RTC_DRV_ASPEED=y
# CONFIG_RTC_DRV_TI_K3 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_RTC_DRV_GOLDFISH=m
# CONFIG_RTC_DRV_MSC313 is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
CONFIG_DMABUF_MOVE_NOTIFY=y
CONFIG_DMABUF_DEBUG=y
# CONFIG_DMABUF_SELFTESTS is not set
CONFIG_DMABUF_HEAPS=y
CONFIG_DMABUF_SYSFS_STATS=y
CONFIG_DMABUF_HEAPS_SYSTEM=y
# CONFIG_DMABUF_HEAPS_CMA is not set
# end of DMABUF options

CONFIG_AUXDISPLAY=y
CONFIG_CHARLCD=y
# CONFIG_LINEDISP is not set
CONFIG_HD44780_COMMON=y
CONFIG_HD44780=y
# CONFIG_IMG_ASCII_LCD is not set
# CONFIG_LCD2S is not set
# CONFIG_PANEL_CHANGE_MESSAGE is not set
# CONFIG_CHARLCD_BL_OFF is not set
CONFIG_CHARLCD_BL_ON=y
# CONFIG_CHARLCD_BL_FLASH is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
CONFIG_VIRT_DRIVERS=y
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=y
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
CONFIG_COMEDI=m
CONFIG_COMEDI_DEBUG=y
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
# CONFIG_COMEDI_MISC_DRIVERS is not set
CONFIG_COMEDI_ISA_DRIVERS=y
# CONFIG_COMEDI_PCL711 is not set
CONFIG_COMEDI_PCL724=m
CONFIG_COMEDI_PCL726=m
# CONFIG_COMEDI_PCL730 is not set
# CONFIG_COMEDI_PCL812 is not set
CONFIG_COMEDI_PCL816=m
# CONFIG_COMEDI_PCL818 is not set
CONFIG_COMEDI_PCM3724=m
CONFIG_COMEDI_AMPLC_DIO200_ISA=m
# CONFIG_COMEDI_AMPLC_PC236_ISA is not set
CONFIG_COMEDI_AMPLC_PC263_ISA=m
CONFIG_COMEDI_RTI800=m
CONFIG_COMEDI_RTI802=m
CONFIG_COMEDI_DAC02=m
CONFIG_COMEDI_DAS16M1=m
CONFIG_COMEDI_DAS08_ISA=m
CONFIG_COMEDI_DAS16=m
CONFIG_COMEDI_DAS800=m
# CONFIG_COMEDI_DAS1800 is not set
CONFIG_COMEDI_DAS6402=m
CONFIG_COMEDI_DT2801=m
CONFIG_COMEDI_DT2811=m
# CONFIG_COMEDI_DT2814 is not set
CONFIG_COMEDI_DT2815=m
CONFIG_COMEDI_DT2817=m
# CONFIG_COMEDI_DT282X is not set
CONFIG_COMEDI_DMM32AT=m
CONFIG_COMEDI_FL512=m
CONFIG_COMEDI_AIO_AIO12_8=m
# CONFIG_COMEDI_AIO_IIRO_16 is not set
# CONFIG_COMEDI_II_PCI20KC is not set
CONFIG_COMEDI_C6XDIGIO=m
# CONFIG_COMEDI_MPC624 is not set
# CONFIG_COMEDI_ADQ12B is not set
CONFIG_COMEDI_NI_AT_A2150=m
CONFIG_COMEDI_NI_AT_AO=m
# CONFIG_COMEDI_NI_ATMIO is not set
CONFIG_COMEDI_NI_ATMIO16D=m
# CONFIG_COMEDI_NI_LABPC_ISA is not set
CONFIG_COMEDI_PCMAD=m
CONFIG_COMEDI_PCMDA12=m
CONFIG_COMEDI_PCMMIO=m
# CONFIG_COMEDI_PCMUIO is not set
# CONFIG_COMEDI_MULTIQ3 is not set
CONFIG_COMEDI_S526=m
# CONFIG_COMEDI_PCI_DRIVERS is not set
CONFIG_COMEDI_USB_DRIVERS=m
# CONFIG_COMEDI_DT9812 is not set
CONFIG_COMEDI_NI_USB6501=m
CONFIG_COMEDI_USBDUX=m
# CONFIG_COMEDI_USBDUXFAST is not set
CONFIG_COMEDI_USBDUXSIGMA=m
CONFIG_COMEDI_VMK80XX=m
CONFIG_COMEDI_8254=m
CONFIG_COMEDI_8255=m
CONFIG_COMEDI_8255_SA=m
CONFIG_COMEDI_KCOMEDILIB=m
CONFIG_COMEDI_AMPLC_DIO200=m
CONFIG_COMEDI_DAS08=m
CONFIG_COMEDI_TESTS=m
# CONFIG_COMEDI_TESTS_EXAMPLE is not set
# CONFIG_COMEDI_TESTS_NI_ROUTES is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
CONFIG_CHROME_PLATFORMS=y
CONFIG_CROS_EC=m
CONFIG_CROS_EC_I2C=m
CONFIG_CROS_EC_RPMSG=m
CONFIG_CROS_EC_PROTO=y
CONFIG_CROS_KBD_LED_BACKLIGHT=m
CONFIG_CROS_EC_CHARDEV=m
# CONFIG_CROS_EC_LIGHTBAR is not set
# CONFIG_CROS_EC_VBC is not set
CONFIG_CROS_EC_DEBUGFS=m
CONFIG_CROS_EC_SENSORHUB=m
# CONFIG_CROS_EC_SYSFS is not set
CONFIG_CROS_USBPD_NOTIFY=m
CONFIG_CROS_KUNIT=m
CONFIG_MELLANOX_PLATFORM=y
# CONFIG_MLXREG_HOTPLUG is not set
# CONFIG_MLXREG_IO is not set
# CONFIG_MLXREG_LC is not set
CONFIG_NVSW_SN2201=m
# CONFIG_OLPC_XO175 is not set
CONFIG_SURFACE_PLATFORMS=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Clock driver for ARM Reference designs
#
CONFIG_CLK_ICST=y
# CONFIG_CLK_SP810 is not set
# end of Clock driver for ARM Reference designs

# CONFIG_CLK_HSDK is not set
# CONFIG_COMMON_CLK_APPLE_NCO is not set
CONFIG_COMMON_CLK_MAX77686=m
CONFIG_COMMON_CLK_MAX9485=m
CONFIG_COMMON_CLK_RK808=m
# CONFIG_COMMON_CLK_HI655X is not set
CONFIG_COMMON_CLK_SCMI=m
# CONFIG_COMMON_CLK_SCPI is not set
CONFIG_COMMON_CLK_SI5341=m
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
CONFIG_COMMON_CLK_SI544=m
CONFIG_COMMON_CLK_SI570=m
# CONFIG_COMMON_CLK_BM1880 is not set
CONFIG_COMMON_CLK_CDCE706=m
# CONFIG_COMMON_CLK_TPS68470 is not set
CONFIG_COMMON_CLK_CDCE925=m
CONFIG_COMMON_CLK_CS2000_CP=m
# CONFIG_COMMON_CLK_EN7523 is not set
# CONFIG_COMMON_CLK_FSL_FLEXSPI is not set
# CONFIG_COMMON_CLK_FSL_SAI is not set
# CONFIG_COMMON_CLK_GEMINI is not set
# CONFIG_COMMON_CLK_LAN966X is not set
CONFIG_COMMON_CLK_ASPEED=y
# CONFIG_COMMON_CLK_S2MPS11 is not set
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_CLK_QORIQ is not set
# CONFIG_CLK_LS1028A_PLLDIG is not set
# CONFIG_COMMON_CLK_XGENE is not set
CONFIG_COMMON_CLK_PWM=m
# CONFIG_COMMON_CLK_OXNAS is not set
CONFIG_COMMON_CLK_RS9_PCIE=m
CONFIG_COMMON_CLK_VC5=m
CONFIG_COMMON_CLK_VC7=m
# CONFIG_COMMON_CLK_MMP2_AUDIO is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_CLK_ACTIONS is not set
# CONFIG_CLK_BAIKAL_T1 is not set
# CONFIG_CLK_BCM2711_DVP is not set
# CONFIG_CLK_BCM2835 is not set
# CONFIG_CLK_BCM_63XX is not set
# CONFIG_CLK_BCM_63XX_GATE is not set
# CONFIG_CLK_BCM_KONA is not set
# CONFIG_CLK_BCM_CYGNUS is not set
# CONFIG_CLK_BCM_HR2 is not set
# CONFIG_CLK_BCM_NSP is not set
# CONFIG_CLK_BCM_NS2 is not set
# CONFIG_CLK_BCM_SR is not set
# CONFIG_CLK_RASPBERRYPI is not set
# CONFIG_COMMON_CLK_HI3516CV300 is not set
# CONFIG_COMMON_CLK_HI3519 is not set
# CONFIG_COMMON_CLK_HI3559A is not set
# CONFIG_COMMON_CLK_HI3660 is not set
# CONFIG_COMMON_CLK_HI3670 is not set
# CONFIG_COMMON_CLK_HI3798CV200 is not set
# CONFIG_COMMON_CLK_HI6220 is not set
# CONFIG_RESET_HISI is not set
# CONFIG_STUB_CLK_HI6220 is not set
# CONFIG_STUB_CLK_HI3660 is not set
# CONFIG_COMMON_CLK_BOSTON is not set
# CONFIG_MXC_CLK is not set
# CONFIG_CLK_IMX8MM is not set
# CONFIG_CLK_IMX8MN is not set
# CONFIG_CLK_IMX8MP is not set
# CONFIG_CLK_IMX8MQ is not set
# CONFIG_CLK_IMX8ULP is not set
# CONFIG_CLK_IMX93 is not set

#
# Ingenic SoCs drivers
#
# CONFIG_INGENIC_CGU_JZ4740 is not set
# CONFIG_INGENIC_CGU_JZ4725B is not set
# CONFIG_INGENIC_CGU_JZ4760 is not set
# CONFIG_INGENIC_CGU_JZ4770 is not set
# CONFIG_INGENIC_CGU_JZ4780 is not set
# CONFIG_INGENIC_CGU_X1000 is not set
# CONFIG_INGENIC_CGU_X1830 is not set
# CONFIG_INGENIC_TCU_CLK is not set
# end of Ingenic SoCs drivers

# CONFIG_COMMON_CLK_KEYSTONE is not set
# CONFIG_TI_SYSCON_CLK is not set

#
# Clock driver for MediaTek SoC
#
# CONFIG_COMMON_CLK_MT2701 is not set
# CONFIG_COMMON_CLK_MT2712 is not set
# CONFIG_COMMON_CLK_MT6765 is not set
# CONFIG_COMMON_CLK_MT6779 is not set
# CONFIG_COMMON_CLK_MT6795 is not set
# CONFIG_COMMON_CLK_MT6797 is not set
# CONFIG_COMMON_CLK_MT7622 is not set
# CONFIG_COMMON_CLK_MT7629 is not set
# CONFIG_COMMON_CLK_MT7986 is not set
# CONFIG_COMMON_CLK_MT8135 is not set
# CONFIG_COMMON_CLK_MT8167 is not set
# CONFIG_COMMON_CLK_MT8173 is not set
# CONFIG_COMMON_CLK_MT8183 is not set
# CONFIG_COMMON_CLK_MT8186 is not set
# CONFIG_COMMON_CLK_MT8192 is not set
# CONFIG_COMMON_CLK_MT8195 is not set
# CONFIG_COMMON_CLK_MT8365 is not set
# CONFIG_COMMON_CLK_MT8516 is not set
# end of Clock driver for MediaTek SoC

#
# Clock support for Amlogic platforms
#
CONFIG_COMMON_CLK_MESON_REGMAP=y
CONFIG_COMMON_CLK_MESON_MPLL=y
CONFIG_COMMON_CLK_MESON_PLL=y
CONFIG_COMMON_CLK_MESON8B=y
# end of Clock support for Amlogic platforms

# CONFIG_MSTAR_MSC313_MPLL is not set
# CONFIG_MCHP_CLK_MPFS is not set
# CONFIG_COMMON_CLK_PISTACHIO is not set
# CONFIG_COMMON_CLK_QCOM is not set
# CONFIG_CLK_MT7621 is not set
# CONFIG_CLK_RENESAS is not set
# CONFIG_COMMON_CLK_SAMSUNG is not set
# CONFIG_S3C2410_COMMON_CLK is not set
# CONFIG_S3C2412_COMMON_CLK is not set
# CONFIG_S3C2443_COMMON_CLK is not set
# CONFIG_CLK_SIFIVE is not set
# CONFIG_CLK_INTEL_SOCFPGA is not set
# CONFIG_SPRD_COMMON_CLK is not set
# CONFIG_CLK_STARFIVE_JH7100 is not set
CONFIG_CLK_SUNXI=y
CONFIG_CLK_SUNXI_CLOCKS=y
CONFIG_CLK_SUNXI_PRCM_SUN6I=y
CONFIG_CLK_SUNXI_PRCM_SUN8I=y
CONFIG_CLK_SUNXI_PRCM_SUN9I=y
# CONFIG_SUNXI_CCU is not set
# CONFIG_COMMON_CLK_TI_ADPLL is not set
# CONFIG_CLK_UNIPHIER is not set
# CONFIG_COMMON_CLK_VISCONTI is not set
# CONFIG_CLK_LGM_CGU is not set
CONFIG_XILINX_VCU=m
CONFIG_COMMON_CLK_XLNX_CLKWZRD=y
# CONFIG_COMMON_CLK_ZYNQMP is not set
CONFIG_CLK_KUNIT_TEST=m
CONFIG_CLK_GATE_KUNIT_TEST=m
CONFIG_HWSPINLOCK=y
# CONFIG_HWSPINLOCK_OMAP is not set
# CONFIG_HWSPINLOCK_QCOM is not set
# CONFIG_HWSPINLOCK_SPRD is not set
# CONFIG_HWSPINLOCK_STM32 is not set
# CONFIG_HWSPINLOCK_SUN6I is not set
# CONFIG_HSEM_U8500 is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_OMAP_DM_SYSTIMER=y
CONFIG_CLKSRC_MMIO=y
# CONFIG_BCM2835_TIMER is not set
# CONFIG_BCM_KONA_TIMER is not set
# CONFIG_DAVINCI_TIMER is not set
# CONFIG_DIGICOLOR_TIMER is not set
CONFIG_OMAP_DM_TIMER=y
# CONFIG_DW_APB_TIMER is not set
# CONFIG_FTTMR010_TIMER is not set
# CONFIG_IXP4XX_TIMER is not set
# CONFIG_ROCKCHIP_TIMER is not set
# CONFIG_ARMADA_370_XP_TIMER is not set
# CONFIG_MESON6_TIMER is not set
# CONFIG_ORION_TIMER is not set
# CONFIG_OWL_TIMER is not set
# CONFIG_RDA_TIMER is not set
# CONFIG_SUN4I_TIMER is not set
# CONFIG_SUN5I_HSTIMER is not set
# CONFIG_TEGRA_TIMER is not set
# CONFIG_TEGRA186_TIMER is not set
CONFIG_VT8500_TIMER=y
# CONFIG_NPCM7XX_TIMER is not set
# CONFIG_CADENCE_TTC_TIMER is not set
# CONFIG_ASM9260_TIMER is not set
# CONFIG_CLKSRC_NOMADIK_MTU is not set
# CONFIG_CLKSRC_DBX500_PRCMU is not set
# CONFIG_CLPS711X_TIMER is not set
# CONFIG_MXS_TIMER is not set
# CONFIG_NSPIRE_TIMER is not set
# CONFIG_KEYSTONE_TIMER is not set
# CONFIG_INTEGRATOR_AP_TIMER is not set
# CONFIG_CLKSRC_LPC32XX is not set
# CONFIG_CLKSRC_PISTACHIO is not set
CONFIG_CLKSRC_TI_32K=y
# CONFIG_CLKSRC_STM32 is not set
# CONFIG_CLKSRC_STM32_LP is not set
# CONFIG_CLKSRC_MPS2 is not set
# CONFIG_ARC_TIMERS is not set
# CONFIG_ARM_GLOBAL_TIMER is not set
# CONFIG_ARM_TIMER_SP804 is not set
# CONFIG_ARMV7M_SYSTICK is not set
# CONFIG_ATMEL_PIT is not set
# CONFIG_ATMEL_ST is not set
# CONFIG_ATMEL_TCB_CLKSRC is not set
# CONFIG_CLKSRC_EXYNOS_MCT is not set
# CONFIG_CLKSRC_SAMSUNG_PWM is not set
# CONFIG_FSL_FTM_TIMER is not set
# CONFIG_OXNAS_RPS_TIMER is not set
# CONFIG_MTK_TIMER is not set
# CONFIG_SPRD_TIMER is not set
# CONFIG_CLKSRC_JCORE_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_RENESAS_OSTM is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_CLKSRC_QCOM is not set
# CONFIG_CLKSRC_VERSATILE is not set
# CONFIG_CLKSRC_PXA is not set
# CONFIG_CLKSRC_IMX_GPT is not set
# CONFIG_CLKSRC_IMX_TPM is not set
# CONFIG_TIMER_IMX_SYS_CTR is not set
# CONFIG_CLKSRC_ST_LPC is not set
# CONFIG_GXP_TIMER is not set
# CONFIG_MILBEAUT_TIMER is not set
# CONFIG_MSC313E_TIMER is not set
# CONFIG_INGENIC_TIMER is not set
# CONFIG_INGENIC_SYSOST is not set
# CONFIG_INGENIC_OST is not set
CONFIG_MICROCHIP_PIT64B=y
# CONFIG_GOLDFISH_TIMER is not set
# end of Clock Source drivers

CONFIG_MAILBOX=y
# CONFIG_IMX_MBOX is not set
CONFIG_PLATFORM_MHU=y
# CONFIG_ARMADA_37XX_RWTM_MBOX is not set
# CONFIG_OMAP2PLUS_MBOX is not set
# CONFIG_ROCKCHIP_MBOX is not set
# CONFIG_ALTERA_MBOX is not set
# CONFIG_HI3660_MBOX is not set
# CONFIG_HI6220_MBOX is not set
CONFIG_MAILBOX_TEST=y
# CONFIG_POLARFIRE_SOC_MAILBOX is not set
# CONFIG_QCOM_APCS_IPC is not set
# CONFIG_BCM_PDC_MBOX is not set
# CONFIG_STM32_IPCC is not set
# CONFIG_MTK_ADSP_MBOX is not set
# CONFIG_MTK_CMDQ_MBOX is not set
# CONFIG_SUN6I_MSGBOX is not set
# CONFIG_SPRD_MBOX is not set
# CONFIG_QCOM_IPCC is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IO_PGTABLE=y
CONFIG_IOMMU_IO_PGTABLE_LPAE=y
CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_OF_IOMMU=y
# CONFIG_MSM_IOMMU is not set
CONFIG_OMAP_IOMMU=y
CONFIG_OMAP_IOMMU_DEBUG=y
# CONFIG_ROCKCHIP_IOMMU is not set
# CONFIG_SUN50I_IOMMU is not set
# CONFIG_EXYNOS_IOMMU is not set
# CONFIG_ARM_SMMU is not set
# CONFIG_S390_CCW_IOMMU is not set
# CONFIG_S390_AP_IOMMU is not set
# CONFIG_MTK_IOMMU is not set
# CONFIG_MTK_IOMMU_V1 is not set
# CONFIG_SPRD_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
CONFIG_RPMSG=y
CONFIG_RPMSG_CTRL=m
CONFIG_RPMSG_NS=m
CONFIG_RPMSG_QCOM_GLINK=y
CONFIG_RPMSG_QCOM_GLINK_RPM=y
CONFIG_RPMSG_VIRTIO=m
# end of Rpmsg drivers

CONFIG_SOUNDWIRE=y

#
# SoundWire Devices
#

#
# SOC (System On Chip) specific Drivers
#
# CONFIG_OWL_PM_DOMAINS is not set

#
# Amlogic SoC drivers
#
# CONFIG_MESON_CANVAS is not set
# CONFIG_MESON_CLK_MEASURE is not set
# CONFIG_MESON_GX_SOCINFO is not set
# CONFIG_MESON_GX_PM_DOMAINS is not set
# CONFIG_MESON_EE_PM_DOMAINS is not set
# CONFIG_MESON_MX_SOCINFO is not set
# end of Amlogic SoC drivers

#
# Apple SoC drivers
#
# CONFIG_APPLE_PMGR_PWRSTATE is not set
# CONFIG_APPLE_RTKIT is not set
# CONFIG_APPLE_SART is not set
# end of Apple SoC drivers

#
# ASPEED SoC drivers
#
CONFIG_ASPEED_LPC_CTRL=m
CONFIG_ASPEED_LPC_SNOOP=y
CONFIG_ASPEED_UART_ROUTING=y
CONFIG_ASPEED_P2A_CTRL=y
CONFIG_ASPEED_SOCINFO=y
# end of ASPEED SoC drivers

# CONFIG_AT91_SOC_ID is not set
# CONFIG_AT91_SOC_SFR is not set

#
# Broadcom SoC drivers
#
# CONFIG_BCM2835_POWER is not set
# CONFIG_SOC_BCM63XX is not set
# CONFIG_SOC_BRCMSTB is not set
# CONFIG_BCM_PMB is not set
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
CONFIG_QUICC_ENGINE=y
CONFIG_DPAA2_CONSOLE=y
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# CONFIG_IMX_GPCV2_PM_DOMAINS is not set
# CONFIG_SOC_IMX8M is not set
# CONFIG_SOC_IMX9 is not set
# end of i.MX SoC drivers

#
# IXP4xx SoC drivers
#
# CONFIG_IXP4XX_QMGR is not set
# CONFIG_IXP4XX_NPE is not set
# end of IXP4xx SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

#
# MediaTek SoC drivers
#
# CONFIG_MTK_CMDQ is not set
# CONFIG_MTK_DEVAPC is not set
# CONFIG_MTK_INFRACFG is not set
# CONFIG_MTK_PMIC_WRAP is not set
# CONFIG_MTK_SCPSYS is not set
# CONFIG_MTK_SCPSYS_PM_DOMAINS is not set
# CONFIG_MTK_MMSYS is not set
# end of MediaTek SoC drivers

#
# Qualcomm SoC drivers
#
# CONFIG_QCOM_AOSS_QMP is not set
# CONFIG_QCOM_COMMAND_DB is not set
# CONFIG_QCOM_GENI_SE is not set
# CONFIG_QCOM_GSBI is not set
# CONFIG_QCOM_LLCC is not set
# CONFIG_QCOM_RPMH is not set
# CONFIG_QCOM_SMEM is not set
# CONFIG_QCOM_SMD_RPM is not set
# CONFIG_QCOM_SPM is not set
# CONFIG_QCOM_WCNSS_CTRL is not set
# CONFIG_QCOM_ICC_BWMON is not set
# end of Qualcomm SoC drivers

# CONFIG_SOC_RENESAS is not set
# CONFIG_ROCKCHIP_GRF is not set
# CONFIG_ROCKCHIP_IODOMAIN is not set
# CONFIG_ROCKCHIP_PM_DOMAINS is not set
# CONFIG_SOC_SAMSUNG is not set
# CONFIG_SOC_TEGRA20_VOLTAGE_COUPLER is not set
# CONFIG_SOC_TEGRA30_VOLTAGE_COUPLER is not set
# CONFIG_SOC_TI is not set
# CONFIG_UX500_SOC_ID is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
CONFIG_DEVFREQ_GOV_POWERSAVE=y
# CONFIG_DEVFREQ_GOV_USERSPACE is not set
# CONFIG_DEVFREQ_GOV_PASSIVE is not set

#
# DEVFREQ Drivers
#
# CONFIG_ARM_EXYNOS_BUS_DEVFREQ is not set
# CONFIG_ARM_IMX_BUS_DEVFREQ is not set
# CONFIG_ARM_TEGRA_DEVFREQ is not set
# CONFIG_ARM_MEDIATEK_CCI_DEVFREQ is not set
# CONFIG_ARM_SUN8I_A33_MBUS_DEVFREQ is not set
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
CONFIG_EXTCON_ADC_JACK=m
CONFIG_EXTCON_FSA9480=m
CONFIG_EXTCON_GPIO=m
CONFIG_EXTCON_MAX3355=m
# CONFIG_EXTCON_MAX77693 is not set
CONFIG_EXTCON_PTN5150=m
# CONFIG_EXTCON_QCOM_SPMI_MISC is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
CONFIG_EXTCON_USB_GPIO=m
CONFIG_EXTCON_USBC_CROS_EC=m
CONFIG_MEMORY=y
CONFIG_DDR=y
# CONFIG_ATMEL_SDRAMC is not set
# CONFIG_ATMEL_EBI is not set
# CONFIG_BRCMSTB_DPFE is not set
# CONFIG_BRCMSTB_MEMC is not set
# CONFIG_BT1_L2_CTL is not set
# CONFIG_TI_AEMIF is not set
# CONFIG_TI_EMIF is not set
CONFIG_OMAP_GPMC=y
# CONFIG_OMAP_GPMC_DEBUG is not set
# CONFIG_MVEBU_DEVBUS is not set
# CONFIG_FSL_CORENET_CF is not set
# CONFIG_FSL_IFC is not set
# CONFIG_JZ4780_NEMC is not set
# CONFIG_MTK_SMI is not set
# CONFIG_DA8XX_DDRCTL is not set
# CONFIG_RENESAS_RPCIF is not set
# CONFIG_STM32_FMC2_EBI is not set
# CONFIG_SAMSUNG_MC is not set
CONFIG_TEGRA_MC=y
CONFIG_TEGRA20_EMC=y
CONFIG_TEGRA30_EMC=y
CONFIG_TEGRA124_EMC=y
# CONFIG_TEGRA210_EMC is not set
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=m
CONFIG_IIO_BUFFER_DMA=m
CONFIG_IIO_BUFFER_DMAENGINE=m
CONFIG_IIO_BUFFER_HW_CONSUMER=m
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGERED_BUFFER=m
CONFIG_IIO_CONFIGFS=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
# CONFIG_IIO_SW_DEVICE is not set
# CONFIG_IIO_SW_TRIGGER is not set
# CONFIG_IIO_TRIGGERED_EVENT is not set

#
# Accelerometers
#
CONFIG_ADXL313=m
CONFIG_ADXL313_I2C=m
# CONFIG_ADXL355_I2C is not set
# CONFIG_ADXL367_I2C is not set
CONFIG_ADXL372=m
CONFIG_ADXL372_I2C=m
CONFIG_BMA180=m
CONFIG_BMA400=m
CONFIG_BMA400_I2C=m
CONFIG_BMC150_ACCEL=m
CONFIG_BMC150_ACCEL_I2C=m
CONFIG_DA280=m
CONFIG_DA311=m
CONFIG_DMARD06=m
CONFIG_DMARD09=m
# CONFIG_DMARD10 is not set
CONFIG_FXLS8962AF=m
CONFIG_FXLS8962AF_I2C=m
# CONFIG_HID_SENSOR_ACCEL_3D is not set
CONFIG_IIO_CROS_EC_ACCEL_LEGACY=m
CONFIG_IIO_ST_ACCEL_3AXIS=m
# CONFIG_IIO_ST_ACCEL_I2C_3AXIS is not set
CONFIG_KXSD9=m
# CONFIG_KXSD9_I2C is not set
# CONFIG_KXCJK1013 is not set
# CONFIG_MC3230 is not set
CONFIG_MMA7455=m
CONFIG_MMA7455_I2C=m
CONFIG_MMA7660=m
CONFIG_MMA8452=m
CONFIG_MMA9551_CORE=m
CONFIG_MMA9551=m
# CONFIG_MMA9553 is not set
CONFIG_MSA311=m
# CONFIG_MXC4005 is not set
CONFIG_MXC6255=m
CONFIG_STK8312=m
CONFIG_STK8BA50=m
# end of Accelerometers

#
# Analog to digital converters
#
CONFIG_AD7091R5=m
CONFIG_AD7291=m
CONFIG_AD7606=m
CONFIG_AD7606_IFACE_PARALLEL=m
# CONFIG_AD799X is not set
CONFIG_ADI_AXI_ADC=m
CONFIG_ASPEED_ADC=m
# CONFIG_AT91_ADC is not set
# CONFIG_AT91_SAMA5D2_ADC is not set
CONFIG_AXP20X_ADC=m
CONFIG_AXP288_ADC=m
# CONFIG_BCM_IPROC_ADC is not set
# CONFIG_BERLIN2_ADC is not set
CONFIG_CC10001_ADC=m
CONFIG_DA9150_GPADC=m
CONFIG_DLN2_ADC=m
CONFIG_ENVELOPE_DETECTOR=m
# CONFIG_EXYNOS_ADC is not set
# CONFIG_HX711 is not set
CONFIG_INA2XX_ADC=m
# CONFIG_INGENIC_ADC is not set
# CONFIG_IMX7D_ADC is not set
# CONFIG_IMX8QXP_ADC is not set
# CONFIG_LPC18XX_ADC is not set
# CONFIG_LPC32XX_ADC is not set
CONFIG_LTC2471=m
# CONFIG_LTC2485 is not set
# CONFIG_LTC2497 is not set
# CONFIG_MAX1363 is not set
CONFIG_MAX9611=m
CONFIG_MCP3422=m
CONFIG_MEDIATEK_MT6360_ADC=m
# CONFIG_MEDIATEK_MT6577_AUXADC is not set
CONFIG_MEN_Z188_ADC=m
# CONFIG_MESON_SARADC is not set
CONFIG_MP2629_ADC=m
CONFIG_NAU7802=m
# CONFIG_NPCM_ADC is not set
CONFIG_QCOM_VADC_COMMON=m
# CONFIG_QCOM_PM8XXX_XOADC is not set
CONFIG_QCOM_SPMI_IADC=m
CONFIG_QCOM_SPMI_VADC=m
CONFIG_QCOM_SPMI_ADC5=m
# CONFIG_RCAR_GYRO_ADC is not set
# CONFIG_ROCKCHIP_SARADC is not set
CONFIG_RICHTEK_RTQ6056=m
# CONFIG_RZG2L_ADC is not set
# CONFIG_SC27XX_ADC is not set
# CONFIG_SPEAR_ADC is not set
CONFIG_SD_ADC_MODULATOR=m
# CONFIG_STM32_ADC_CORE is not set
# CONFIG_STM32_DFSDM_CORE is not set
# CONFIG_STM32_DFSDM_ADC is not set
CONFIG_TI_ADC081C=m
# CONFIG_TI_ADS1015 is not set
CONFIG_VF610_ADC=m
CONFIG_XILINX_XADC=m
# CONFIG_XILINX_AMS is not set
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
# CONFIG_IIO_RESCALE is not set
# end of Analog Front Ends

#
# Amplifiers
#
CONFIG_HMC425=m
# end of Amplifiers

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
CONFIG_AD7746=m
# end of Capacitance to digital converters

#
# Chemical Sensors
#
# CONFIG_ATLAS_PH_SENSOR is not set
CONFIG_ATLAS_EZO_SENSOR=m
CONFIG_BME680=m
CONFIG_BME680_I2C=m
CONFIG_CCS811=m
CONFIG_IAQCORE=m
CONFIG_SCD30_CORE=m
CONFIG_SCD30_I2C=m
CONFIG_SCD4X=m
CONFIG_SENSIRION_SGP30=m
# CONFIG_SENSIRION_SGP40 is not set
CONFIG_SPS30=m
CONFIG_SPS30_I2C=m
# CONFIG_SENSEAIR_SUNRISE_CO2 is not set
CONFIG_VZ89X=m
# end of Chemical Sensors

CONFIG_IIO_CROS_EC_SENSORS_CORE=m
CONFIG_IIO_CROS_EC_SENSORS=m
CONFIG_IIO_CROS_EC_SENSORS_LID_ANGLE=m

#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=m
CONFIG_HID_SENSOR_IIO_TRIGGER=m
# end of Hid Sensor IIO Common

CONFIG_IIO_MS_SENSORS_I2C=m

#
# IIO SCMI Sensors
#
CONFIG_IIO_SCMI=m
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# end of SSP Sensor Common

CONFIG_IIO_ST_SENSORS_I2C=m
CONFIG_IIO_ST_SENSORS_CORE=m

#
# Digital to analog converters
#
CONFIG_AD5064=m
# CONFIG_AD5380 is not set
# CONFIG_AD5446 is not set
CONFIG_AD5592R_BASE=m
CONFIG_AD5593R=m
CONFIG_AD5686=m
CONFIG_AD5696_I2C=m
CONFIG_DPOT_DAC=m
CONFIG_DS4424=m
# CONFIG_LPC18XX_DAC is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
CONFIG_MAX5821=m
CONFIG_MCP4725=m
# CONFIG_STM32_DAC is not set
CONFIG_TI_DAC5571=m
# CONFIG_VF610_DAC is not set
# end of Digital to analog converters

#
# IIO dummy driver
#
# end of IIO dummy driver

#
# Filters
#
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
# CONFIG_BMG160 is not set
CONFIG_FXAS21002C=m
CONFIG_FXAS21002C_I2C=m
CONFIG_HID_SENSOR_GYRO_3D=m
# CONFIG_MPU3050_I2C is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
CONFIG_ITG3200=m
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
CONFIG_AFE4404=m
CONFIG_MAX30100=m
CONFIG_MAX30102=m
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
CONFIG_AM2315=m
# CONFIG_DHT11 is not set
CONFIG_HDC100X=m
# CONFIG_HDC2010 is not set
# CONFIG_HID_SENSOR_HUMIDITY is not set
# CONFIG_HTS221 is not set
CONFIG_HTU21=m
CONFIG_SI7005=m
# CONFIG_SI7020 is not set
# end of Humidity sensors

#
# Inertial measurement units
#
# CONFIG_BMI160_I2C is not set
# CONFIG_BOSCH_BNO055_I2C is not set
CONFIG_FXOS8700=m
CONFIG_FXOS8700_I2C=m
CONFIG_KMX61=m
CONFIG_INV_ICM42600=m
CONFIG_INV_ICM42600_I2C=m
CONFIG_INV_MPU6050_IIO=m
CONFIG_INV_MPU6050_I2C=m
CONFIG_IIO_ST_LSM6DSX=m
CONFIG_IIO_ST_LSM6DSX_I2C=m
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

#
# Light sensors
#
CONFIG_ADJD_S311=m
CONFIG_ADUX1020=m
# CONFIG_AL3010 is not set
CONFIG_AL3320A=m
# CONFIG_APDS9300 is not set
CONFIG_APDS9960=m
CONFIG_AS73211=m
# CONFIG_BH1750 is not set
CONFIG_BH1780=m
CONFIG_CM32181=m
CONFIG_CM3232=m
# CONFIG_CM3323 is not set
CONFIG_CM3605=m
CONFIG_CM36651=m
CONFIG_IIO_CROS_EC_LIGHT_PROX=m
# CONFIG_GP2AP002 is not set
CONFIG_GP2AP020A00F=m
# CONFIG_IQS621_ALS is not set
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
CONFIG_ISL29125=m
CONFIG_HID_SENSOR_ALS=m
# CONFIG_HID_SENSOR_PROX is not set
CONFIG_JSA1212=m
# CONFIG_RPR0521 is not set
CONFIG_SENSORS_LM3533=m
# CONFIG_LTR501 is not set
# CONFIG_LTRF216A is not set
CONFIG_LV0104CS=m
CONFIG_MAX44000=m
# CONFIG_MAX44009 is not set
CONFIG_NOA1305=m
CONFIG_OPT3001=m
CONFIG_PA12203001=m
CONFIG_SI1133=m
# CONFIG_SI1145 is not set
CONFIG_STK3310=m
CONFIG_ST_UVIS25=m
CONFIG_ST_UVIS25_I2C=m
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
CONFIG_SENSORS_TSL2563=m
CONFIG_TSL2583=m
CONFIG_TSL2591=m
CONFIG_TSL2772=m
CONFIG_TSL4531=m
CONFIG_US5182D=m
# CONFIG_VCNL4000 is not set
CONFIG_VCNL4035=m
# CONFIG_VEML6030 is not set
# CONFIG_VEML6070 is not set
CONFIG_VL6180=m
CONFIG_ZOPT2201=m
# end of Light sensors

#
# Magnetometer sensors
#
CONFIG_AK8974=m
CONFIG_AK8975=m
CONFIG_AK09911=m
# CONFIG_BMC150_MAGN_I2C is not set
# CONFIG_MAG3110 is not set
CONFIG_HID_SENSOR_MAGNETOMETER_3D=m
CONFIG_MMC35240=m
CONFIG_IIO_ST_MAGN_3AXIS=m
CONFIG_IIO_ST_MAGN_I2C_3AXIS=m
CONFIG_SENSORS_HMC5843=m
CONFIG_SENSORS_HMC5843_I2C=m
# CONFIG_SENSORS_RM3100_I2C is not set
CONFIG_YAMAHA_YAS530=m
# end of Magnetometer sensors

#
# Multiplexers
#
CONFIG_IIO_MUX=m
# end of Multiplexers

#
# Inclinometer sensors
#
CONFIG_HID_SENSOR_INCLINOMETER_3D=m
CONFIG_HID_SENSOR_DEVICE_ROTATION=m
# end of Inclinometer sensors

CONFIG_IIO_FORMAT_KUNIT_TEST=m

#
# Triggers - standalone
#
# CONFIG_IIO_INTERRUPT_TRIGGER is not set
# CONFIG_IIO_STM32_LPTIMER_TRIGGER is not set
# CONFIG_IIO_STM32_TIMER_TRIGGER is not set
CONFIG_IIO_SYSFS_TRIGGER=m
# end of Triggers - standalone

#
# Linear and angular position sensors
#
# CONFIG_IQS624_POS is not set
CONFIG_HID_SENSOR_CUSTOM_INTEL_HINGE=m
# end of Linear and angular position sensors

#
# Digital potentiometers
#
CONFIG_AD5110=m
CONFIG_AD5272=m
# CONFIG_DS1803 is not set
# CONFIG_MAX5432 is not set
CONFIG_MCP4018=m
CONFIG_MCP4531=m
CONFIG_TPL0102=m
# end of Digital potentiometers

#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
# end of Digital potentiostats

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
CONFIG_BMP280=m
CONFIG_BMP280_I2C=m
CONFIG_IIO_CROS_EC_BARO=m
CONFIG_DLHL60D=m
# CONFIG_DPS310 is not set
CONFIG_HID_SENSOR_PRESS=m
CONFIG_HP03=m
CONFIG_ICP10100=m
CONFIG_MPL115=m
CONFIG_MPL115_I2C=m
CONFIG_MPL3115=m
CONFIG_MS5611=m
CONFIG_MS5611_I2C=m
# CONFIG_MS5637 is not set
# CONFIG_IIO_ST_PRESS is not set
CONFIG_T5403=m
# CONFIG_HP206C is not set
CONFIG_ZPA2326=m
CONFIG_ZPA2326_I2C=m
# end of Pressure sensors

#
# Lightning sensors
#
# end of Lightning sensors

#
# Proximity and distance sensors
#
CONFIG_CROS_EC_MKBP_PROXIMITY=m
# CONFIG_ISL29501 is not set
# CONFIG_LIDAR_LITE_V2 is not set
CONFIG_MB1232=m
CONFIG_PING=m
CONFIG_RFD77402=m
CONFIG_SRF04=m
CONFIG_SX_COMMON=m
CONFIG_SX9310=m
CONFIG_SX9324=m
# CONFIG_SX9360 is not set
CONFIG_SX9500=m
CONFIG_SRF08=m
CONFIG_VCNL3020=m
# CONFIG_VL53L0X_I2C is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
# end of Resolver to digital converters

#
# Temperature sensors
#
# CONFIG_IQS620AT_TEMP is not set
CONFIG_HID_SENSOR_TEMP=m
CONFIG_MLX90614=m
# CONFIG_MLX90632 is not set
CONFIG_TMP006=m
# CONFIG_TMP007 is not set
CONFIG_TMP117=m
CONFIG_TSYS01=m
CONFIG_TSYS02D=m
# end of Temperature sensors

CONFIG_NTB=y
CONFIG_NTB_MSI=y
# CONFIG_NTB_IDT is not set
CONFIG_NTB_EPF=m
CONFIG_NTB_SWITCHTEC=y
CONFIG_NTB_PINGPONG=y
CONFIG_NTB_TOOL=y
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_MSI_TEST is not set
CONFIG_NTB_TRANSPORT=y
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_DEBUG=y
# CONFIG_PWM_ATMEL is not set
# CONFIG_PWM_ATMEL_HLCDC_PWM is not set
CONFIG_PWM_ATMEL_TCB=y
# CONFIG_PWM_BCM_IPROC is not set
# CONFIG_PWM_BCM_KONA is not set
# CONFIG_PWM_BCM2835 is not set
# CONFIG_PWM_BERLIN is not set
# CONFIG_PWM_BRCMSTB is not set
CONFIG_PWM_CLK=m
# CONFIG_PWM_CLPS711X is not set
# CONFIG_PWM_CROS_EC is not set
# CONFIG_PWM_DWC is not set
# CONFIG_PWM_EP93XX is not set
CONFIG_PWM_FSL_FTM=y
# CONFIG_PWM_HIBVT is not set
# CONFIG_PWM_IMG is not set
# CONFIG_PWM_IMX1 is not set
# CONFIG_PWM_IMX27 is not set
# CONFIG_PWM_IMX_TPM is not set
# CONFIG_PWM_INTEL_LGM is not set
# CONFIG_PWM_IQS620A is not set
# CONFIG_PWM_JZ4740 is not set
# CONFIG_PWM_KEEMBAY is not set
CONFIG_PWM_LP3943=m
# CONFIG_PWM_LPC18XX_SCT is not set
# CONFIG_PWM_LPC32XX is not set
# CONFIG_PWM_LPSS_PCI is not set
# CONFIG_PWM_LPSS_PLATFORM is not set
# CONFIG_PWM_MESON is not set
# CONFIG_PWM_MTK_DISP is not set
# CONFIG_PWM_MEDIATEK is not set
# CONFIG_PWM_MXS is not set
CONFIG_PWM_NTXEC=m
CONFIG_PWM_OMAP_DMTIMER=y
CONFIG_PWM_PCA9685=m
# CONFIG_PWM_PXA is not set
# CONFIG_PWM_RASPBERRYPI_POE is not set
# CONFIG_PWM_RCAR is not set
# CONFIG_PWM_RENESAS_TPU is not set
# CONFIG_PWM_ROCKCHIP is not set
# CONFIG_PWM_SAMSUNG is not set
# CONFIG_PWM_SIFIVE is not set
# CONFIG_PWM_SL28CPLD is not set
# CONFIG_PWM_SPEAR is not set
# CONFIG_PWM_SPRD is not set
# CONFIG_PWM_STI is not set
# CONFIG_PWM_STM32 is not set
# CONFIG_PWM_STM32_LP is not set
# CONFIG_PWM_SUN4I is not set
# CONFIG_PWM_SUNPLUS is not set
# CONFIG_PWM_TEGRA is not set
# CONFIG_PWM_TIECAP is not set
CONFIG_PWM_TIEHRPWM=y
# CONFIG_PWM_VISCONTI is not set
# CONFIG_PWM_VT8500 is not set
CONFIG_PWM_XILINX=y

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
CONFIG_AL_FIC=y
CONFIG_MADERA_IRQ=m
CONFIG_OMAP_IRQCHIP=y
# CONFIG_JCORE_AIC is not set
# CONFIG_RENESAS_INTC_IRQPIN is not set
# CONFIG_RENESAS_IRQC is not set
# CONFIG_RENESAS_RZA1_IRQC is not set
# CONFIG_RENESAS_RZG2L_IRQC is not set
# CONFIG_SL28CPLD_INTC is not set
# CONFIG_TS4800_IRQ is not set
# CONFIG_XILINX_INTC is not set
# CONFIG_INGENIC_TCU_IRQ is not set
# CONFIG_IRQ_UNIPHIER_AIDET is not set
# CONFIG_MESON_IRQ_GPIO is not set
# CONFIG_IMX_IRQSTEER is not set
# CONFIG_IMX_INTMUX is not set
# CONFIG_IMX_MU_MSI is not set
# CONFIG_EXYNOS_IRQ_COMBINER is not set
# CONFIG_MST_IRQ is not set
# CONFIG_MCHP_EIC is not set
# CONFIG_SUNPLUS_SP7021_INTC is not set
# end of IRQ chip support

CONFIG_IPACK_BUS=m
CONFIG_BOARD_TPCI200=m
# CONFIG_SERIAL_IPOCTAL is not set
CONFIG_ARCH_HAS_RESET_CONTROLLER=y
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_A10SR is not set
# CONFIG_RESET_ATH79 is not set
# CONFIG_RESET_AXS10X is not set
# CONFIG_RESET_BCM6345 is not set
# CONFIG_RESET_BERLIN is not set
# CONFIG_RESET_BRCMSTB is not set
# CONFIG_RESET_BRCMSTB_RESCAL is not set
# CONFIG_RESET_HSDK is not set
# CONFIG_RESET_IMX7 is not set
# CONFIG_RESET_INTEL_GW is not set
# CONFIG_RESET_K210 is not set
# CONFIG_RESET_LANTIQ is not set
# CONFIG_RESET_LPC18XX is not set
# CONFIG_RESET_MCHP_SPARX5 is not set
# CONFIG_RESET_MESON is not set
# CONFIG_RESET_MESON_AUDIO_ARB is not set
# CONFIG_RESET_NPCM is not set
# CONFIG_RESET_PISTACHIO is not set
# CONFIG_RESET_QCOM_AOSS is not set
# CONFIG_RESET_QCOM_PDC is not set
CONFIG_RESET_RASPBERRYPI=m
# CONFIG_RESET_RZG2L_USBPHY_CTRL is not set
# CONFIG_RESET_SCMI is not set
CONFIG_RESET_SIMPLE=y
# CONFIG_RESET_SOCFPGA is not set
# CONFIG_RESET_STARFIVE_JH7100 is not set
# CONFIG_RESET_SUNPLUS is not set
# CONFIG_RESET_SUNXI is not set
# CONFIG_RESET_TI_SCI is not set
CONFIG_RESET_TI_SYSCON=y
# CONFIG_RESET_TI_TPS380X is not set
# CONFIG_RESET_TN48M_CPLD is not set
# CONFIG_RESET_UNIPHIER is not set
# CONFIG_RESET_UNIPHIER_GLUE is not set
# CONFIG_RESET_ZYNQ is not set
# CONFIG_COMMON_RESET_HI3660 is not set
# CONFIG_COMMON_RESET_HI6220 is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
CONFIG_GENERIC_PHY_MIPI_DPHY=y
# CONFIG_PHY_LPC18XX_USB_OTG is not set
# CONFIG_PHY_PISTACHIO_USB is not set
# CONFIG_PHY_XGENE is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
# CONFIG_PHY_SUN4I_USB is not set
# CONFIG_PHY_SUN6I_MIPI_DPHY is not set
# CONFIG_PHY_SUN9I_USB is not set
# CONFIG_PHY_SUN50I_USB3 is not set
# CONFIG_PHY_MESON8_HDMI_TX is not set
# CONFIG_PHY_MESON8B_USB2 is not set
# CONFIG_PHY_MESON_GXL_USB2 is not set
# CONFIG_PHY_MESON_G12A_MIPI_DPHY_ANALOG is not set
# CONFIG_PHY_MESON_G12A_USB2 is not set
# CONFIG_PHY_MESON_G12A_USB3_PCIE is not set
# CONFIG_PHY_MESON_AXG_PCIE is not set
# CONFIG_PHY_MESON_AXG_MIPI_PCIE_ANALOG is not set
# CONFIG_PHY_MESON_AXG_MIPI_DPHY is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_PHY_BCM63XX_USBH is not set
# CONFIG_PHY_CYGNUS_PCIE is not set
# CONFIG_PHY_BCM_SR_USB is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_BCM_NS_USB2 is not set
# CONFIG_PHY_NS2_USB_DRD is not set
# CONFIG_PHY_BRCM_SATA is not set
# CONFIG_PHY_BRCM_USB is not set
# CONFIG_PHY_BCM_SR_PCIE is not set
# end of PHY drivers for Broadcom platforms

CONFIG_PHY_CADENCE_TORRENT=m
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
CONFIG_PHY_CADENCE_SIERRA=m
CONFIG_PHY_CADENCE_SALVO=m
# CONFIG_PHY_FSL_IMX8MQ_USB is not set
# CONFIG_PHY_MIXEL_LVDS_PHY is not set
# CONFIG_PHY_MIXEL_MIPI_DPHY is not set
# CONFIG_PHY_FSL_IMX8M_PCIE is not set
# CONFIG_PHY_FSL_LYNX_28G is not set
# CONFIG_PHY_HI6220_USB is not set
# CONFIG_PHY_HI3660_USB is not set
# CONFIG_PHY_HI3670_USB is not set
# CONFIG_PHY_HI3670_PCIE is not set
# CONFIG_PHY_HISTB_COMBPHY is not set
# CONFIG_PHY_HISI_INNO_USB2 is not set
# CONFIG_PHY_INGENIC_USB is not set
# CONFIG_PHY_LANTIQ_VRX200_PCIE is not set
# CONFIG_PHY_LANTIQ_RCU_USB2 is not set
# CONFIG_ARMADA375_USBCLUSTER_PHY is not set
# CONFIG_PHY_BERLIN_SATA is not set
# CONFIG_PHY_BERLIN_USB is not set
CONFIG_PHY_MVEBU_A3700_UTMI=y
# CONFIG_PHY_MVEBU_A38X_COMPHY is not set
# CONFIG_PHY_MVEBU_CP110_UTMI is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=m
# CONFIG_PHY_PXA_USB is not set
# CONFIG_PHY_MMP3_USB is not set
# CONFIG_PHY_MMP3_HSIC is not set
# CONFIG_PHY_MTK_PCIE is not set
# CONFIG_PHY_MTK_TPHY is not set
# CONFIG_PHY_MTK_UFS is not set
# CONFIG_PHY_MTK_XSPHY is not set
# CONFIG_PHY_MTK_HDMI is not set
# CONFIG_PHY_MTK_MIPI_DSI is not set
# CONFIG_PHY_MTK_DP is not set
# CONFIG_PHY_SPARX5_SERDES is not set
CONFIG_PHY_LAN966X_SERDES=y
CONFIG_PHY_CPCAP_USB=m
CONFIG_PHY_MAPPHONE_MDM6600=m
# CONFIG_PHY_OCELOT_SERDES is not set
CONFIG_PHY_ATH79_USB=m
# CONFIG_PHY_QCOM_EDP is not set
# CONFIG_PHY_QCOM_IPQ4019_USB is not set
# CONFIG_PHY_QCOM_PCIE2 is not set
# CONFIG_PHY_QCOM_QMP is not set
# CONFIG_PHY_QCOM_QUSB2 is not set
CONFIG_PHY_QCOM_USB_HS=m
# CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2 is not set
# CONFIG_PHY_QCOM_USB_HSIC is not set
# CONFIG_PHY_QCOM_USB_HS_28NM is not set
# CONFIG_PHY_QCOM_USB_SS is not set
# CONFIG_PHY_QCOM_IPQ806X_USB is not set
# CONFIG_PHY_MT7621_PCI is not set
# CONFIG_PHY_RALINK_USB is not set
# CONFIG_PHY_RCAR_GEN3_USB3 is not set
# CONFIG_PHY_ROCKCHIP_DPHY_RX0 is not set
# CONFIG_PHY_ROCKCHIP_INNO_HDMI is not set
# CONFIG_PHY_ROCKCHIP_INNO_USB2 is not set
# CONFIG_PHY_ROCKCHIP_INNO_CSIDPHY is not set
# CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY is not set
# CONFIG_PHY_ROCKCHIP_PCIE is not set
# CONFIG_PHY_ROCKCHIP_SNPS_PCIE3 is not set
# CONFIG_PHY_ROCKCHIP_TYPEC is not set
# CONFIG_PHY_EXYNOS_DP_VIDEO is not set
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_PHY_EXYNOS_PCIE is not set
# CONFIG_PHY_SAMSUNG_UFS is not set
CONFIG_PHY_SAMSUNG_USB2=y
# CONFIG_PHY_S5PV210_USB2 is not set
# CONFIG_PHY_UNIPHIER_USB2 is not set
# CONFIG_PHY_UNIPHIER_USB3 is not set
# CONFIG_PHY_UNIPHIER_PCIE is not set
# CONFIG_PHY_UNIPHIER_AHCI is not set
# CONFIG_PHY_ST_SPEAR1310_MIPHY is not set
# CONFIG_PHY_ST_SPEAR1340_MIPHY is not set
# CONFIG_PHY_STIH407_USB is not set
# CONFIG_PHY_STM32_USBPHYC is not set
# CONFIG_PHY_SUNPLUS_USB is not set
# CONFIG_PHY_TEGRA194_P2U is not set
# CONFIG_PHY_DA8XX_USB is not set
CONFIG_PHY_DM816X_USB=y
# CONFIG_PHY_AM654_SERDES is not set
# CONFIG_PHY_J721E_WIZ is not set
CONFIG_OMAP_CONTROL_PHY=y
# CONFIG_OMAP_USB2 is not set
CONFIG_TI_PIPE3=y
# CONFIG_PHY_TUSB1210 is not set
# CONFIG_PHY_INTEL_KEEMBAY_EMMC is not set
# CONFIG_PHY_INTEL_KEEMBAY_USB is not set
# CONFIG_PHY_INTEL_LGM_COMBO is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# CONFIG_PHY_INTEL_THUNDERBAY_EMMC is not set
# CONFIG_PHY_XILINX_ZYNQMP is not set
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
CONFIG_MCB=m
# CONFIG_MCB_PCI is not set
CONFIG_MCB_LPC=m
# CONFIG_RAS is not set
CONFIG_USB4=m
CONFIG_USB4_DEBUGFS_WRITE=y
# CONFIG_USB4_DEBUGFS_MARGINING is not set
CONFIG_USB4_DMA_TEST=m

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

CONFIG_DAX=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_APPLE_EFUSES is not set
# CONFIG_NVMEM_BCM_OCOTP is not set
# CONFIG_NVMEM_BRCM_NVRAM is not set
# CONFIG_NVMEM_IMX_IIM is not set
# CONFIG_NVMEM_IMX_OCOTP is not set
# CONFIG_NVMEM_JZ4780_EFUSE is not set
# CONFIG_NVMEM_LAN9662_OTPC is not set
# CONFIG_NVMEM_LAYERSCAPE_SFP is not set
# CONFIG_NVMEM_LPC18XX_EEPROM is not set
# CONFIG_NVMEM_LPC18XX_OTP is not set
# CONFIG_NVMEM_MESON_MX_EFUSE is not set
# CONFIG_NVMEM_MICROCHIP_OTPC is not set
# CONFIG_NVMEM_MTK_EFUSE is not set
# CONFIG_NVMEM_MXS_OCOTP is not set
# CONFIG_NVMEM_NINTENDO_OTP is not set
# CONFIG_NVMEM_QCOM_QFPROM is not set
CONFIG_NVMEM_RMEM=m
# CONFIG_NVMEM_ROCKCHIP_EFUSE is not set
# CONFIG_NVMEM_ROCKCHIP_OTP is not set
# CONFIG_NVMEM_SC27XX_EFUSE is not set
# CONFIG_NVMEM_SNVS_LPGPR is not set
CONFIG_NVMEM_SPMI_SDAM=y
# CONFIG_NVMEM_SPRD_EFUSE is not set
# CONFIG_NVMEM_STM32_ROMEM is not set
# CONFIG_NVMEM_SUNPLUS_OCOTP is not set
# CONFIG_NVMEM_UNIPHIER_EFUSE is not set
# CONFIG_NVMEM_VF610_OCOTP is not set

#
# HW tracing support
#
CONFIG_STM=y
# CONFIG_STM_PROTO_BASIC is not set
# CONFIG_STM_PROTO_SYS_T is not set
CONFIG_STM_DUMMY=y
# CONFIG_STM_SOURCE_CONSOLE is not set
# CONFIG_STM_SOURCE_HEARTBEAT is not set
# CONFIG_STM_SOURCE_FTRACE is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
CONFIG_FSI=y
CONFIG_FSI_NEW_DEV_NODE=y
# CONFIG_FSI_MASTER_GPIO is not set
CONFIG_FSI_MASTER_HUB=m
# CONFIG_FSI_MASTER_ASPEED is not set
CONFIG_FSI_SCOM=m
# CONFIG_FSI_SBEFIFO is not set
# CONFIG_TEE is not set
CONFIG_MULTIPLEXER=m

#
# Multiplexer drivers
#
CONFIG_MUX_ADG792A=m
CONFIG_MUX_GPIO=m
CONFIG_MUX_MMIO=m
# end of Multiplexer drivers

CONFIG_PM_OPP=y
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
CONFIG_INTERCONNECT=y
# CONFIG_INTERCONNECT_IMX is not set
# CONFIG_INTERCONNECT_QCOM_OSM_L3 is not set
# CONFIG_INTERCONNECT_SAMSUNG is not set
CONFIG_COUNTER=m
# CONFIG_104_QUAD_8 is not set
CONFIG_INTERRUPT_CNT=m
# CONFIG_STM32_TIMER_CNT is not set
# CONFIG_STM32_LPTIMER_CNT is not set
# CONFIG_TI_EQEP is not set
# CONFIG_FTM_QUADDEC is not set
# CONFIG_MICROCHIP_TCB_CAPTURE is not set
# CONFIG_INTEL_QEP is not set
# CONFIG_TI_ECAP_CAPTURE is not set
CONFIG_MOST=y
# CONFIG_MOST_USB_HDM is not set
CONFIG_MOST_CDEV=y
CONFIG_PECI=m
CONFIG_PECI_CPU=m
CONFIG_PECI_ASPEED=m
CONFIG_HTE=y
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=m
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_DEBUG is not set
# end of Caches

#
# Pseudo filesystems
#
# CONFIG_PROC_FS is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
CONFIG_TMPFS_XATTR=y
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ECRYPT_FS is not set
CONFIG_CRAMFS=y
# CONFIG_PSTORE is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
# CONFIG_NLS_CODEPAGE_852 is not set
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
# CONFIG_NLS_CODEPAGE_863 is not set
CONFIG_NLS_CODEPAGE_864=y
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
# CONFIG_NLS_CODEPAGE_869 is not set
CONFIG_NLS_CODEPAGE_936=y
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_CODEPAGE_949=y
# CONFIG_NLS_CODEPAGE_874 is not set
CONFIG_NLS_ISO8859_8=y
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
# CONFIG_NLS_ISO8859_1 is not set
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=m
# CONFIG_NLS_ISO8859_7 is not set
CONFIG_NLS_ISO8859_9=y
# CONFIG_NLS_ISO8859_13 is not set
CONFIG_NLS_ISO8859_14=y
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=m
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
CONFIG_NLS_MAC_CENTEURO=y
# CONFIG_NLS_MAC_CROATIAN is not set
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=y
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=y
# CONFIG_NLS_MAC_ROMANIAN is not set
CONFIG_NLS_MAC_TURKISH=y
CONFIG_NLS_UTF8=m
CONFIG_UNICODE=y
CONFIG_UNICODE_NORMALIZATION_SELFTEST=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_REQUEST_CACHE=y
CONFIG_PERSISTENT_KEYRINGS=y
# CONFIG_BIG_KEYS is not set
CONFIG_TRUSTED_KEYS=y
CONFIG_TRUSTED_KEYS_TPM=y
CONFIG_ENCRYPTED_KEYS=m
# CONFIG_USER_DECRYPTED_DATA is not set
# CONFIG_KEY_DH_OPERATIONS is not set
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITYFS is not set
# CONFIG_FORTIFY_SOURCE is not set
CONFIG_STATIC_USERMODEHELPER=y
CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
# end of Memory initialization

CONFIG_CC_HAS_RANDSTRUCT=y
# CONFIG_RANDSTRUCT_NONE is not set
CONFIG_RANDSTRUCT_FULL=y
CONFIG_RANDSTRUCT=y
# end of Kernel hardening options
# end of Security options

CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
# CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_ENGINE=m
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
CONFIG_CRYPTO_DH_RFC7919_GROUPS=y
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
CONFIG_CRYPTO_ECDSA=y
# CONFIG_CRYPTO_ECRDSA is not set
CONFIG_CRYPTO_SM2=m
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_AES_TI=y
CONFIG_CRYPTO_ARIA=y
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=y
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_HCTR2=m
# CONFIG_CRYPTO_KEYWRAP is not set
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XCTR=m
# CONFIG_CRYPTO_XTS is not set
CONFIG_CRYPTO_NHPOLY1305=m
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y
CONFIG_CRYPTO_ESSIV=m
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
CONFIG_CRYPTO_BLAKE2B=y
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_POLYVAL=m
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_RMD160=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_SHA3 is not set
CONFIG_CRYPTO_SM3=m
# CONFIG_CRYPTO_SM3_GENERIC is not set
CONFIG_CRYPTO_STREEBOG=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_XXHASH=y
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRCT10DIF=y
# CONFIG_CRYPTO_CRC64_ROCKSOFT is not set
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_842=y
CONFIG_CRYPTO_LZ4=m
# CONFIG_CRYPTO_LZ4HC is not set
CONFIG_CRYPTO_ZSTD=y
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# end of Random number generation

#
# Userspace interface
#
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y

#
# Accelerated Cryptographic Algorithms for CPU (arm)
#
CONFIG_CRYPTO_POLY1305_ARM=y
# CONFIG_CRYPTO_BLAKE2S_ARM is not set
CONFIG_CRYPTO_SHA1_ARM=y
CONFIG_CRYPTO_SHA256_ARM=y
CONFIG_CRYPTO_SHA512_ARM=y
# CONFIG_CRYPTO_AES_ARM is not set
# CONFIG_CRYPTO_CHACHA20_NEON is not set
# end of Accelerated Cryptographic Algorithms for CPU (arm)

CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_ALLWINNER is not set
# CONFIG_CRYPTO_DEV_SL3516 is not set
CONFIG_CRYPTO_DEV_HIFN_795X=m
# CONFIG_CRYPTO_DEV_HIFN_795X_RNG is not set
CONFIG_CRYPTO_DEV_OMAP=m
# CONFIG_CRYPTO_DEV_OMAP_SHAM is not set
# CONFIG_CRYPTO_DEV_OMAP_AES is not set
# CONFIG_CRYPTO_DEV_OMAP_DES is not set
# CONFIG_CRYPTO_DEV_EXYNOS_RNG is not set
# CONFIG_CRYPTO_DEV_S5P is not set
# CONFIG_CRYPTO_DEV_ATMEL_AES is not set
# CONFIG_CRYPTO_DEV_ATMEL_TDES is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA is not set
CONFIG_CRYPTO_DEV_ATMEL_I2C=m
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
CONFIG_CRYPTO_DEV_ATMEL_SHA204A=m
CONFIG_CRYPTO_DEV_QAT=y
CONFIG_CRYPTO_DEV_QAT_DH895xCC=y
# CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
CONFIG_CRYPTO_DEV_QAT_C62X=y
CONFIG_CRYPTO_DEV_QAT_4XXX=y
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=m
# CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
CONFIG_CRYPTO_DEV_QAT_C62XVF=m
# CONFIG_CRYPTO_DEV_QCE is not set
# CONFIG_CRYPTO_DEV_QCOM_RNG is not set
# CONFIG_CRYPTO_DEV_IMGTEC_HASH is not set
# CONFIG_CRYPTO_DEV_ZYNQMP_AES is not set
# CONFIG_CRYPTO_DEV_ZYNQMP_SHA3 is not set
# CONFIG_CRYPTO_DEV_VIRTIO is not set
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_ARTPEC6 is not set
# CONFIG_CRYPTO_DEV_CCREE is not set
# CONFIG_CRYPTO_DEV_HISI_SEC is not set
CONFIG_CRYPTO_DEV_AMLOGIC_GXL=m
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG is not set
# CONFIG_CRYPTO_DEV_SA2UL is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_ECC is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU is not set
CONFIG_CRYPTO_DEV_ASPEED=m
CONFIG_CRYPTO_DEV_ASPEED_DEBUG=y
# CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH is not set
CONFIG_CRYPTO_DEV_ASPEED_HACE_CRYPTO=y
# CONFIG_ASYMMETRIC_KEY_TYPE is not set

#
# Certificates for signature checking
#
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_LINEAR_RANGES=y
CONFIG_PACKING=y
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9
CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=m
CONFIG_CRYPTO_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=y
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
CONFIG_CRC64=m
CONFIG_CRC4=y
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=y
CONFIG_XXHASH=y
CONFIG_RANDOM32_SELFTEST=y
CONFIG_842_COMPRESS=y
CONFIG_842_DECOMPRESS=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=m
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=y
CONFIG_ZSTD_DECOMPRESS=y
# CONFIG_XZ_DEC is not set
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_HAS_DMA_WRITE_COMBINE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_PERNUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_PERCENTAGE=10
# CONFIG_CMA_SIZE_SEL_MBYTES is not set
CONFIG_CMA_SIZE_SEL_PERCENTAGE=y
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG is not set
CONFIG_DMA_MAP_BENCHMARK=y
CONFIG_SGL_ALLOC=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_STACKDEPOT=y
CONFIG_REF_TRACKER=y
# CONFIG_PARMAN is not set
# CONFIG_OBJAGG is not set
# end of Library routines

CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y
CONFIG_ASN1_ENCODER=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
CONFIG_STACKTRACE_BUILD_ID=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
# CONFIG_DEBUG_BUGVERBOSE is not set
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_NONE is not set
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
CONFIG_DEBUG_INFO_SPLIT=y
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
CONFIG_PAHOLE_HAS_BTF_TAG=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
CONFIG_VMLINUX_MAP=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
# CONFIG_DEBUG_FS_ALLOW_ALL is not set
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
CONFIG_DEBUG_FS_ALLOW_NONE=y
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_HONOUR_BLOCKLIST=y
CONFIG_KGDB_SERIAL_CONSOLE=m
CONFIG_KGDB_TESTS=y
# CONFIG_KGDB_TESTS_ON_BOOT is not set
CONFIG_KGDB_KDB=y
CONFIG_KDB_DEFAULT_ENABLE=0x1
CONFIG_KDB_KEYBOARD=y
CONFIG_KDB_CONTINUE_CATASTROPHIC=0
CONFIG_UBSAN=y
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_CC_HAS_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
CONFIG_UBSAN_UNREACHABLE=y
# CONFIG_UBSAN_BOOL is not set
CONFIG_UBSAN_ENUM=y
CONFIG_TEST_UBSAN=m
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
CONFIG_PAGE_OWNER=y
CONFIG_PAGE_POISONING=y
CONFIG_DEBUG_PAGE_REF=y
# CONFIG_DEBUG_WX is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SHRINKER_DEBUG is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_DEBUG_VM_IRQSOFF=y
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_VM_MAPLE_TREE is not set
CONFIG_DEBUG_VM_RB=y
CONFIG_DEBUG_VM_PGFLAGS=y
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_HAVE_ARCH_KFENCE=y
# end of Memory Debugging

CONFIG_DEBUG_SHIRQ=y

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
CONFIG_TEST_LOCKUP=m
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
# end of Scheduler Debugging

CONFIG_DEBUG_TIMEKEEPING=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RAW_LOCK_NESTING=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_RWSEMS=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
CONFIG_LOCKDEP_BITS=15
CONFIG_LOCKDEP_CHAINS_BITS=16
CONFIG_LOCKDEP_STACK_TRACE_BITS=19
CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14
CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12
# CONFIG_DEBUG_LOCKDEP is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_LOCK_TORTURE_TEST=y
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

CONFIG_TRACE_IRQFLAGS=y
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
CONFIG_DEBUG_KOBJECT=y

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
CONFIG_DEBUG_MAPLE_TREE=y
# end of Debug kernel data structures

CONFIG_DEBUG_CREDENTIALS=y

#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
# CONFIG_PROVE_RCU_LIST is not set
CONFIG_TORTURE_TEST=y
CONFIG_RCU_SCALE_TEST=y
CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_REF_SCALE_TEST=y
CONFIG_RCU_TRACE=y
CONFIG_RCU_EQS_DEBUG=y
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_BOOTTIME_TRACING=y
# CONFIG_FUNCTION_TRACER is not set
# CONFIG_STACK_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_FTRACE_SYSCALLS is not set
CONFIG_TRACER_SNAPSHOT=y
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_KPROBE_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
CONFIG_SYNTH_EVENTS=y
# CONFIG_USER_EVENTS is not set
# CONFIG_HIST_TRIGGERS is not set
# CONFIG_TRACE_EVENT_INJECT is not set
CONFIG_TRACEPOINT_BENCHMARK=y
CONFIG_RING_BUFFER_BENCHMARK=y
CONFIG_TRACE_EVAL_MAP_FILE=y
# CONFIG_FTRACE_STARTUP_TEST is not set
CONFIG_RING_BUFFER_STARTUP_TEST=y
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
CONFIG_PREEMPTIRQ_DELAY_TEST=m
CONFIG_SYNTH_EVENT_GEN_TEST=m
CONFIG_KPROBE_EVENT_GEN_TEST=y
# CONFIG_RV is not set
# CONFIG_SAMPLES is not set

#
# arm Debugging
#
# CONFIG_ARM_PTDUMP_DEBUGFS is not set
CONFIG_UNWINDER_FRAME_POINTER=y
# CONFIG_UNWINDER_ARM is not set
CONFIG_BACKTRACE_VERBOSE=y
# CONFIG_DEBUG_USER is not set
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_OMAP2UART1=y
# CONFIG_DEBUG_OMAP2UART2 is not set
# CONFIG_DEBUG_OMAP2UART3 is not set
# CONFIG_DEBUG_OMAP3UART3 is not set
# CONFIG_DEBUG_OMAP4UART3 is not set
# CONFIG_DEBUG_OMAP3UART4 is not set
# CONFIG_DEBUG_OMAP4UART4 is not set
# CONFIG_DEBUG_TI81XXUART1 is not set
# CONFIG_DEBUG_TI81XXUART2 is not set
# CONFIG_DEBUG_TI81XXUART3 is not set
# CONFIG_DEBUG_AM33XXUART1 is not set
# CONFIG_DEBUG_ZOOM_UART is not set
# CONFIG_DEBUG_VT8500_UART0 is not set
# CONFIG_DEBUG_ICEDCC is not set
# CONFIG_DEBUG_SEMIHOSTING is not set
# CONFIG_DEBUG_LL_UART_8250 is not set
# CONFIG_DEBUG_LL_UART_PL01X is not set
# CONFIG_DEBUG_UART_FLOW_CONTROL is not set
CONFIG_DEBUG_LL_INCLUDE="debug/palmchip.S"
CONFIG_DEBUG_UART_8250=y
CONFIG_DEBUG_UART_PHYS=0x4806a000
CONFIG_DEBUG_UART_VIRT=0xfa06a000
CONFIG_DEBUG_UART_8250_SHIFT=2
# CONFIG_DEBUG_UART_8250_WORD is not set
CONFIG_DEBUG_UART_8250_PALMCHIP=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_EARLY_PRINTK is not set
CONFIG_ARM_KPROBES_TEST=y
# CONFIG_PID_IN_CONTEXTIDR is not set
# CONFIG_CORESIGHT is not set
# end of arm Debugging

#
# Kernel Testing and Coverage
#
CONFIG_KUNIT=m
CONFIG_KUNIT_DEBUGFS=y
# CONFIG_KUNIT_TEST is not set
# CONFIG_KUNIT_EXAMPLE_TEST is not set
CONFIG_KUNIT_ALL_TESTS=m
# CONFIG_KUNIT_DEFAULT_ENABLED is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_KCOV=y
# CONFIG_KCOV_ENABLE_COMPARISONS is not set
CONFIG_KCOV_INSTRUMENT_ALL=y
CONFIG_KCOV_IRQ_AREA_SIZE=0x40000
CONFIG_RUNTIME_TESTING_MENU=y
CONFIG_LKDTM=y
CONFIG_CPUMASK_KUNIT_TEST=m
# CONFIG_TEST_LIST_SORT is not set
CONFIG_TEST_MIN_HEAP=m
CONFIG_TEST_SORT=m
CONFIG_TEST_DIV64=m
CONFIG_KPROBES_SANITY_TEST=m
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_TEST_REF_TRACKER=m
CONFIG_RBTREE_TEST=y
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_TEST_HEXDUMP=y
CONFIG_STRING_SELFTEST=y
CONFIG_TEST_STRING_HELPERS=m
# CONFIG_TEST_STRSCPY is not set
CONFIG_TEST_KSTRTOX=y
# CONFIG_TEST_PRINTF is not set
CONFIG_TEST_SCANF=y
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
# CONFIG_TEST_XARRAY is not set
CONFIG_TEST_RHASHTABLE=y
# CONFIG_TEST_SIPHASH is not set
CONFIG_TEST_IDA=y
CONFIG_TEST_LKM=m
CONFIG_TEST_BITOPS=m
CONFIG_TEST_VMALLOC=m
CONFIG_TEST_USER_COPY=m
CONFIG_FIND_BIT_BENCHMARK=m
# CONFIG_TEST_FIRMWARE is not set
CONFIG_BITFIELD_KUNIT=m
CONFIG_HASH_KUNIT_TEST=m
CONFIG_RESOURCE_KUNIT_TEST=m
CONFIG_SYSCTL_KUNIT_TEST=m
CONFIG_LIST_KUNIT_TEST=m
CONFIG_LINEAR_RANGES_TEST=m
# CONFIG_CMDLINE_KUNIT_TEST is not set
CONFIG_BITS_TEST=m
CONFIG_RATIONAL_KUNIT_TEST=m
CONFIG_MEMCPY_KUNIT_TEST=m
CONFIG_IS_SIGNED_TYPE_KUNIT_TEST=m
# CONFIG_OVERFLOW_KUNIT_TEST is not set
# CONFIG_STACKINIT_KUNIT_TEST is not set
CONFIG_TEST_UDELAY=y
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_DYNAMIC_DEBUG=y
# CONFIG_TEST_DEBUG_VIRTUAL is not set
# CONFIG_TEST_MEMCAT_P is not set
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=y
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking

# CONFIG_WARN_MISSING_DOCUMENTS is not set
# CONFIG_WARN_ABI_ERRORS is not set
# end of Kernel hacking