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* [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
@ 2021-10-11 11:52 Sean Nyekjaer
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
                   ` (3 more replies)
  0 siblings, 4 replies; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-11 11:52 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, Boris Brezillon, linux-mtd, linux-kernel

Follow-up on discussion in https://lkml.org/lkml/2021/10/4/41

Changes since from rfc v1/v2:
 - added access protection for all device access hooks in mtd_info.
 - added Suggested-by to [1/3] patch.
 - removed refereces to commit ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op")
   from commit msg as commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") is 
   to be blamed.
 - tested on a kernel with LOCKDEP enabled.

@Miquel: I havn't covered every ioctl, to me it looks like they havn't
direct device access.

One (small) issue still present. gpmi_nand.c uses the rwsem before it's
initialized. Seems cumbersome to have every mtd/nand driver to call
init_waitqueue_head() and init_rwsem(). Could we somehow move the call
to mtd_set_dev_defaults() before nand_create_bbt()?

---
nand: device found, Manufacturer ID: 0x98, Chip ID: 0xdc
nand: Toshiba NAND 512MiB 3,3V 8-bit
nand: 512 MiB, SLC, erase size: 256 KiB, page size: 4096, OOB size: 128
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at kernel/locking/rwsem.c:1240 down_read+0x160/0x184
DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x0, magic = 0x0, owner = 0x0, curr 0xc40b0000, list not empty 
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc3-00002-g7eab985fa8cd-dirty #163 
Hardware name: Freescale i.MX6 Ultralite (Device Tree)
[<c010fa90>] (unwind_backtrace) from [<c010b8fc>] (show_stack+0x10/0x14)
[<c010b8fc>] (show_stack) from [<c0b34998>] (dump_stack_lvl+0x58/0x70)
[<c0b34998>] (dump_stack_lvl) from [<c0123884>] (__warn+0xd4/0x154) 
[<c0123884>] (__warn) from [<c0b2e9ac>] (warn_slowpath_fmt+0x94/0xbc)
[<c0b2e9ac>] (warn_slowpath_fmt) from [<c0b428c8>] (down_read+0x160/0x184)
[<c0b428c8>] (down_read) from [<c06df42c>] (mtd_read_oob+0xc8/0x284)
[<c06df42c>] (mtd_read_oob) from [<c06f28cc>] (scan_block_fast+0x78/0xf4) 
[<c06f28cc>] (scan_block_fast) from [<c06f3c14>] (search_bbt+0x268/0x304) 
[<c06f3c14>] (search_bbt) from [<c06f3ef0>] (nand_create_bbt+0x240/0x6dc) 
[<c06f3ef0>] (nand_create_bbt) from [<c06fa758>] (gpmi_nand_probe+0x568/0x6d0)
[<c06fa758>] (gpmi_nand_probe) from [<c068731c>] (platform_probe+0x58/0xb8)
[<c068731c>] (platform_probe) from [<c0684a48>] (really_probe.part.0+0x9c/0x32c)
[<c0684a48>] (really_probe.part.0) from [<c0684d78>] (__driver_probe_device+0xa0/0x138) 
[<c0684d78>] (__driver_probe_device) from [<c0684e40>] (driver_probe_device+0x30/0x10c) 
[<c0684e40>] (driver_probe_device) from [<c0685510>] (__driver_attach+0xb4/0x174) 
[<c0685510>] (__driver_attach) from [<c0682b84>] (bus_for_each_dev+0x78/0xb8) 
[<c0682b84>] (bus_for_each_dev) from [<c0683ea4>] (bus_add_driver+0xf0/0x1d8) 
[<c0683ea4>] (bus_add_driver) from [<c0686270>] (driver_register+0x88/0x118)
[<c0686270>] (driver_register) from [<c0102108>] (do_one_initcall+0x74/0x378) 
[<c0102108>] (do_one_initcall) from [<c1001304>] (kernel_init_freeable+0x2a4/0x348) 
[<c1001304>] (kernel_init_freeable) from [<c0b3bc34>] (kernel_init+0x10/0x124)
[<c0b3bc34>] (kernel_init) from [<c010011c>] (ret_from_fork+0x14/0x38)
Exception stack(0xc40a7fb0 to 0xc40a7ff8) 
7fa0: ???????? ???????? ???????? ???????? 
7fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? 
7fe0: ???????? ???????? ???????? ???????? ???????? ???????? 
irq event stamp: 110936 
hardirqs lastenabled at (110935): [<c0100b04>] __irq_svc+0x64/0x80
hardirqs last disabled at (110936): [<c0100af0>] __irq_svc+0x50/0x80
softirqs lastenabled at (110906): [<c093818c>] netlink_insert+0x60/0x8a4
softirqs last disabled at (110904): [<c08ac6d4>] release_sock+0x18/0x98 
---[ end trace c70a1a8da23b619d ]---
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
---

Sean Nyekjaer (3):
  mtd: core: protect access to MTD devices while in suspend
  mtd: rawnand: remove suspended check
  mtd: mtdconcat: add suspend lock handling

 drivers/mtd/mtdconcat.c          |  11 ++-
 drivers/mtd/mtdcore.c            | 133 +++++++++++++++++++++++++++----
 drivers/mtd/nand/raw/nand_base.c |  52 +++---------
 include/linux/mtd/mtd.h          | 109 +++++++++++++++++++++----
 include/linux/mtd/rawnand.h      |   5 +-
 5 files changed, 234 insertions(+), 76 deletions(-)

-- 
2.33.0


^ permalink raw reply	[flat|nested] 23+ messages in thread

* [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend
  2021-10-11 11:52 [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
@ 2021-10-11 11:52 ` Sean Nyekjaer
  2021-10-11 13:37   ` Boris Brezillon
                     ` (2 more replies)
  2021-10-11 11:52 ` [PATCH 2/3] mtd: rawnand: remove suspended check Sean Nyekjaer
                   ` (2 subsequent siblings)
  3 siblings, 3 replies; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-11 11:52 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, Boris Brezillon, linux-mtd, linux-kernel

Prevent accessing the devices while in a suspended state. Also
prevent suspending a device which is still currently in use.

Commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") allows the
rawnand layer to return errors rather than waiting in a blocking wait.

Tested on a iMX6ULL.

Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
 drivers/mtd/mtdcore.c   | 133 +++++++++++++++++++++++++++++++++++-----
 include/linux/mtd/mtd.h | 109 +++++++++++++++++++++++++++-----
 2 files changed, 211 insertions(+), 31 deletions(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index c8fd7f758938..51be9b46ef54 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -777,6 +777,8 @@ static void mtd_set_dev_defaults(struct mtd_info *mtd)
 	INIT_LIST_HEAD(&mtd->partitions);
 	mutex_init(&mtd->master.partitions_lock);
 	mutex_init(&mtd->master.chrdev_lock);
+	init_waitqueue_head(&mtd->master.resume_wq);
+	init_rwsem(&mtd->master.suspend_lock);
 }
 
 static ssize_t mtd_otp_size(struct mtd_info *mtd, bool is_user)
@@ -1257,6 +1259,8 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 	ledtrig_mtd_activity();
 
+	mtd_start_access(mtd);
+
 	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION) {
 		adjinstr.addr = (loff_t)mtd_div_by_eb(instr->addr, mtd) *
 				master->erasesize;
@@ -1278,6 +1282,8 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
 		}
 	}
 
+	mtd_end_access(mtd);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_erase);
@@ -1289,6 +1295,7 @@ int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
 	      void **virt, resource_size_t *phys)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	*retlen = 0;
 	*virt = NULL;
@@ -1301,8 +1308,12 @@ int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
 	if (!len)
 		return 0;
 
+	mtd_start_access(mtd);
 	from = mtd_get_master_ofs(mtd, from);
-	return master->_point(master, from, len, retlen, virt, phys);
+	ret = master->_point(master, from, len, retlen, virt, phys);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_point);
 
@@ -1310,6 +1321,7 @@ EXPORT_SYMBOL_GPL(mtd_point);
 int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_unpoint)
 		return -EOPNOTSUPP;
@@ -1317,7 +1329,12 @@ int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 		return -EINVAL;
 	if (!len)
 		return 0;
-	return master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);
+
+	mtd_start_access(mtd);
+	ret =  master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_unpoint);
 
@@ -1372,6 +1389,7 @@ int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
 	};
 	int ret;
 
+	/* mtd_read_oob handles mtd access protection */
 	ret = mtd_read_oob(mtd, from, &ops);
 	*retlen = ops.retlen;
 
@@ -1388,6 +1406,7 @@ int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
 	};
 	int ret;
 
+	/* mtd_write_oob handles mtd access protection */
 	ret = mtd_write_oob(mtd, to, &ops);
 	*retlen = ops.retlen;
 
@@ -1406,6 +1425,7 @@ int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
 		    const u_char *buf)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	*retlen = 0;
 	if (!master->_panic_write)
@@ -1419,8 +1439,12 @@ int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
 	if (!master->oops_panic_write)
 		master->oops_panic_write = true;
 
-	return master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,
-				    retlen, buf);
+	mtd_start_access(mtd);
+	ret = master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,
+				   retlen, buf);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_panic_write);
 
@@ -1566,6 +1590,8 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
 
 	ledtrig_mtd_activity();
 
+	mtd_start_access(mtd);
+
 	/* Check the validity of a potential fallback on mtd->_read */
 	if (!master->_read_oob && (!master->_read || ops->oobbuf))
 		return -EOPNOTSUPP;
@@ -1576,7 +1602,7 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
 		ret_code = mtd_read_oob_std(mtd, from, ops);
 
 	mtd_update_ecc_stats(mtd, master, &old_stats);
-
+	mtd_end_access(mtd);
 	/*
 	 * In cases where ops->datbuf != NULL, mtd->_read_oob() has semantics
 	 * similar to mtd->_read(), returning a non-negative integer
@@ -1597,6 +1623,8 @@ int mtd_write_oob(struct mtd_info *mtd, loff_t to,
 	struct mtd_info *master = mtd_get_master(mtd);
 	int ret;
 
+	mtd_start_access(mtd);
+
 	ops->retlen = ops->oobretlen = 0;
 
 	if (!(mtd->flags & MTD_WRITEABLE))
@@ -1615,7 +1643,10 @@ int mtd_write_oob(struct mtd_info *mtd, loff_t to,
 	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
 		return mtd_io_emulated_slc(mtd, to, false, ops);
 
-	return mtd_write_oob_std(mtd, to, ops);
+	ret = mtd_write_oob_std(mtd, to, ops);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_write_oob);
 
@@ -1992,12 +2023,18 @@ int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
 			   struct otp_info *buf)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_get_fact_prot_info)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_get_fact_prot_info(master, len, retlen, buf);
+
+	mtd_start_access(mtd);
+	ret = master->_get_fact_prot_info(master, len, retlen, buf);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_get_fact_prot_info);
 
@@ -2005,13 +2042,19 @@ int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
 			   size_t *retlen, u_char *buf)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	*retlen = 0;
 	if (!master->_read_fact_prot_reg)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_read_fact_prot_reg(master, from, len, retlen, buf);
+
+	mtd_start_access(mtd);
+	ret = master->_read_fact_prot_reg(master, from, len, retlen, buf);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_read_fact_prot_reg);
 
@@ -2019,12 +2062,18 @@ int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
 			   struct otp_info *buf)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_get_user_prot_info)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_get_user_prot_info(master, len, retlen, buf);
+
+	mtd_start_access(mtd);
+	ret =  master->_get_user_prot_info(master, len, retlen, buf);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_get_user_prot_info);
 
@@ -2032,13 +2081,19 @@ int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
 			   size_t *retlen, u_char *buf)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	*retlen = 0;
 	if (!master->_read_user_prot_reg)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_read_user_prot_reg(master, from, len, retlen, buf);
+
+	mtd_start_access(mtd);
+	ret = master->_read_user_prot_reg(master, from, len, retlen, buf);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_read_user_prot_reg);
 
@@ -2053,7 +2108,11 @@ int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
+
+	mtd_start_access(mtd);
 	ret = master->_write_user_prot_reg(master, to, len, retlen, buf);
+	mtd_end_access(mtd);
+
 	if (ret)
 		return ret;
 
@@ -2068,24 +2127,36 @@ EXPORT_SYMBOL_GPL(mtd_write_user_prot_reg);
 int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_lock_user_prot_reg)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_lock_user_prot_reg(master, from, len);
+
+	mtd_start_access(mtd);
+	ret = master->_lock_user_prot_reg(master, from, len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_lock_user_prot_reg);
 
 int mtd_erase_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_erase_user_prot_reg)
 		return -EOPNOTSUPP;
 	if (!len)
 		return 0;
-	return master->_erase_user_prot_reg(master, from, len);
+
+	mtd_start_access(mtd);
+	ret = master->_erase_user_prot_reg(master, from, len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_erase_user_prot_reg);
 
@@ -2093,6 +2164,7 @@ EXPORT_SYMBOL_GPL(mtd_erase_user_prot_reg);
 int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_lock)
 		return -EOPNOTSUPP;
@@ -2106,13 +2178,18 @@ int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
 	}
 
-	return master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_start_access(mtd);
+	ret = master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_lock);
 
 int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_unlock)
 		return -EOPNOTSUPP;
@@ -2126,13 +2203,18 @@ int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
 	}
 
-	return master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_start_access(mtd);
+	ret = master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_unlock);
 
 int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_is_locked)
 		return -EOPNOTSUPP;
@@ -2146,13 +2228,18 @@ int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
 	}
 
-	return master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_start_access(mtd);
+	ret = master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_is_locked);
 
 int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (ofs < 0 || ofs >= mtd->size)
 		return -EINVAL;
@@ -2162,13 +2249,18 @@ int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
 
-	return master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));
+	mtd_start_access(mtd);
+	ret = master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_block_isreserved);
 
 int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (ofs < 0 || ofs >= mtd->size)
 		return -EINVAL;
@@ -2178,7 +2270,11 @@ int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
 	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
 
-	return master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));
+	mtd_start_access(mtd);
+	ret = master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));
+	mtd_end_access(mtd);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_block_isbad);
 
@@ -2197,7 +2293,10 @@ int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
 
+	mtd_start_access(mtd);
 	ret = master->_block_markbad(master, mtd_get_master_ofs(mtd, ofs));
+	mtd_end_access(mtd);
+
 	if (ret)
 		return ret;
 
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 88227044fc86..7765d1fcfc8b 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -231,6 +231,8 @@ struct mtd_master {
 	struct mutex partitions_lock;
 	struct mutex chrdev_lock;
 	unsigned int suspended : 1;
+	wait_queue_head_t resume_wq;
+	struct rw_semaphore suspend_lock;
 };
 
 struct mtd_info {
@@ -476,10 +478,49 @@ static inline u32 mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops)
 	return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize;
 }
 
+static inline void mtd_start_access(struct mtd_info *mtd)
+{
+	struct mtd_info *master = mtd_get_master(mtd);
+
+	/*
+	 * Don't take the suspend_lock on devices that don't
+	 * implement the suspend hook. Otherwise, lockdep will
+	 * complain about nested locks when trying to suspend MTD
+	 * partitions or MTD devices created by gluebi which are
+	 * backed by real devices.
+	 */
+	if (!master->_suspend)
+		return;
+
+	/*
+	 * Wait until the device is resumed. Should we have a
+	 * non-blocking mode here?
+	 */
+	while (1) {
+		down_read(&master->master.suspend_lock);
+		if (!master->master.suspended)
+			return;
+
+		up_read(&master->master.suspend_lock);
+		wait_event(master->master.resume_wq, master->master.suspended == 0);
+	}
+}
+
+static inline void mtd_end_access(struct mtd_info *mtd)
+{
+	struct mtd_info *master = mtd_get_master(mtd);
+
+	if (!master->_suspend)
+		return;
+
+	up_read(&master->master.suspend_lock);
+}
+
 static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
 				     loff_t ofs, size_t len)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
+	int ret;
 
 	if (!master->_max_bad_blocks)
 		return -ENOTSUPP;
@@ -487,8 +528,12 @@ static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
 	if (mtd->size < (len + ofs) || ofs < 0)
 		return -EINVAL;
 
-	return master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
-				       len);
+	mtd_start_access(mtd);
+	ret = master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
+				      len);
+	mtd_end_access(mtd);
+
+	return ret;
 }
 
 int mtd_wunit_to_pairing_info(struct mtd_info *mtd, int wunit,
@@ -543,33 +588,69 @@ int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs);
 int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
 int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
 
+static inline int __mtd_suspend(struct mtd_info *mtd)
+{
+	struct mtd_info *master = mtd_get_master(mtd);
+	int ret = 0;
+
+	if (!master->_suspend)
+		return ret;
+
+	if (!master->master.suspended) {
+		ret = master->_suspend(master);
+		if (!ret)
+			master->master.suspended = 1;
+	}
+
+	return ret;
+}
+
 static inline int mtd_suspend(struct mtd_info *mtd)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
-	int ret;
+	int ret = 0;
 
-	if (master->master.suspended)
-		return 0;
+	if (!master->_suspend)
+		return ret;
 
-	ret = master->_suspend ? master->_suspend(master) : 0;
-	if (ret)
+	down_write(&master->master.suspend_lock);
+	ret = __mtd_suspend(mtd);
+	up_write(&master->master.suspend_lock);
+
+	return ret;
+}
+
+static inline int __mtd_resume(struct mtd_info *mtd)
+{
+	struct mtd_info *master = mtd_get_master(mtd);
+	int ret = 0;
+
+	if (!master->_suspend)
 		return ret;
 
-	master->master.suspended = 1;
-	return 0;
+	if (master->master.suspended) {
+		if (master->_resume)
+			master->_resume(master);
+
+		master->master.suspended = 0;
+		ret = 1;
+	}
+
+	return ret;
 }
 
 static inline void mtd_resume(struct mtd_info *mtd)
 {
 	struct mtd_info *master = mtd_get_master(mtd);
 
-	if (!master->master.suspended)
+	if (!master->_suspend)
 		return;
 
-	if (master->_resume)
-		master->_resume(master);
-
-	master->master.suspended = 0;
+	down_write(&master->master.suspend_lock);
+	/* If MTD dev has been resumed, wake up all waiters. */
+	if (__mtd_resume(mtd))
+		wake_up_all(&master->master.resume_wq);
+	up_write(&master->master.suspend_lock);
 }
 
 static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)
-- 
2.33.0


^ permalink raw reply related	[flat|nested] 23+ messages in thread

* [PATCH 2/3] mtd: rawnand: remove suspended check
  2021-10-11 11:52 [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
@ 2021-10-11 11:52 ` Sean Nyekjaer
  2021-10-11 11:52 ` [PATCH 3/3] mtd: mtdconcat: add suspend lock handling Sean Nyekjaer
  2021-10-11 14:05 ` [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Boris Brezillon
  3 siblings, 0 replies; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-11 11:52 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, Boris Brezillon, linux-mtd, linux-kernel

Access is protected in upper MTD layer when MTD devices are suspended.

Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
 drivers/mtd/nand/raw/nand_base.c | 52 ++++++++------------------------
 include/linux/mtd/rawnand.h      |  5 +--
 2 files changed, 14 insertions(+), 43 deletions(-)

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 3d6c6e880520..aa2874ae3c4a 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -332,19 +332,11 @@ static int nand_isbad_bbm(struct nand_chip *chip, loff_t ofs)
  * @chip: NAND chip structure
  *
  * Lock the device and its controller for exclusive access
- *
- * Return: -EBUSY if the chip has been suspended, 0 otherwise
  */
-static int nand_get_device(struct nand_chip *chip)
+static void nand_get_device(struct nand_chip *chip)
 {
 	mutex_lock(&chip->lock);
-	if (chip->suspended) {
-		mutex_unlock(&chip->lock);
-		return -EBUSY;
-	}
 	mutex_lock(&chip->controller->lock);
-
-	return 0;
 }
 
 /**
@@ -573,10 +565,7 @@ static int nand_block_markbad_lowlevel(struct nand_chip *chip, loff_t ofs)
 		nand_erase_nand(chip, &einfo, 0);
 
 		/* Write bad block marker to OOB */
-		ret = nand_get_device(chip);
-		if (ret)
-			return ret;
-
+		nand_get_device(chip);
 		ret = nand_markbad_bbm(chip, ofs);
 		nand_release_device(chip);
 	}
@@ -3756,9 +3745,7 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
 	    ops->mode != MTD_OPS_RAW)
 		return -ENOTSUPP;
 
-	ret = nand_get_device(chip);
-	if (ret)
-		return ret;
+	nand_get_device(chip);
 
 	if (!ops->datbuf)
 		ret = nand_do_read_oob(chip, from, ops);
@@ -4345,13 +4332,11 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
 			  struct mtd_oob_ops *ops)
 {
 	struct nand_chip *chip = mtd_to_nand(mtd);
-	int ret;
+	int ret = 0;
 
 	ops->retlen = 0;
 
-	ret = nand_get_device(chip);
-	if (ret)
-		return ret;
+	nand_get_device(chip);
 
 	switch (ops->mode) {
 	case MTD_OPS_PLACE_OOB:
@@ -4410,10 +4395,8 @@ int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr,
 	if (nand_region_is_secured(chip, instr->addr, instr->len))
 		return -EIO;
 
-	/* Grab the lock and see if the device is available */
-	ret = nand_get_device(chip);
-	if (ret)
-		return ret;
+	/* Grab the lock */
+	nand_get_device(chip);
 
 	/* Shift to get first page */
 	page = (int)(instr->addr >> chip->page_shift);
@@ -4499,8 +4482,8 @@ static void nand_sync(struct mtd_info *mtd)
 
 	pr_debug("%s: called\n", __func__);
 
-	/* Grab the lock and see if the device is available */
-	WARN_ON(nand_get_device(chip));
+	/* Grab the lock */
+	nand_get_device(chip);
 	/* Release it and go back */
 	nand_release_device(chip);
 }
@@ -4517,9 +4500,7 @@ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
 	int ret;
 
 	/* Select the NAND device */
-	ret = nand_get_device(chip);
-	if (ret)
-		return ret;
+	nand_get_device(chip);
 
 	nand_select_target(chip, chipnr);
 
@@ -4565,8 +4546,6 @@ static int nand_suspend(struct mtd_info *mtd)
 	mutex_lock(&chip->lock);
 	if (chip->ops.suspend)
 		ret = chip->ops.suspend(chip);
-	if (!ret)
-		chip->suspended = 1;
 	mutex_unlock(&chip->lock);
 
 	return ret;
@@ -4580,15 +4559,10 @@ static void nand_resume(struct mtd_info *mtd)
 {
 	struct nand_chip *chip = mtd_to_nand(mtd);
 
+
 	mutex_lock(&chip->lock);
-	if (chip->suspended) {
-		if (chip->ops.resume)
-			chip->ops.resume(chip);
-		chip->suspended = 0;
-	} else {
-		pr_err("%s called for a chip which is not in suspended state\n",
-			__func__);
-	}
+	if (chip->ops.resume)
+		chip->ops.resume(chip);
 	mutex_unlock(&chip->lock);
 }
 
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index b2f9dd3cbd69..1198a6548912 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1237,9 +1237,7 @@ struct nand_secure_region {
  * @pagecache.page: Page number currently in the cache. -1 means no page is
  *                  currently cached
  * @buf_align: Minimum buffer alignment required by a platform
- * @lock: Lock protecting the suspended field. Also used to serialize accesses
- *        to the NAND device
- * @suspended: Set to 1 when the device is suspended, 0 when it's not
+ * @lock: Lock to serialize accesses to the NAND device
  * @cur_cs: Currently selected target. -1 means no target selected, otherwise we
  *          should always have cur_cs >= 0 && cur_cs < nanddev_ntargets().
  *          NAND Controller drivers should not modify this value, but they're
@@ -1293,7 +1291,6 @@ struct nand_chip {
 
 	/* Internals */
 	struct mutex lock;
-	unsigned int suspended : 1;
 	int cur_cs;
 	int read_retries;
 	struct nand_secure_region *secure_regions;
-- 
2.33.0


^ permalink raw reply related	[flat|nested] 23+ messages in thread

* [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 11:52 [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
  2021-10-11 11:52 ` [PATCH 2/3] mtd: rawnand: remove suspended check Sean Nyekjaer
@ 2021-10-11 11:52 ` Sean Nyekjaer
  2021-10-11 13:15   ` Boris Brezillon
  2021-10-11 13:58   ` Boris Brezillon
  2021-10-11 14:05 ` [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Boris Brezillon
  3 siblings, 2 replies; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-11 11:52 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, Boris Brezillon, linux-mtd, linux-kernel

Use new suspend lock handling for this special case for concatenated
MTD devices.

Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
 drivers/mtd/mtdconcat.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index f685a581df48..c497c851481f 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
 
 static int concat_suspend(struct mtd_info *mtd)
 {
+	struct mtd_info *master = mtd_get_master(mtd);
 	struct mtd_concat *concat = CONCAT(mtd);
 	int i, rc = 0;
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		if ((rc = mtd_suspend(subdev)) < 0)
+
+		down_write(&master->master.suspend_lock);
+		if ((rc = __mtd_suspend(subdev)) < 0)
 			return rc;
+		up_write(&master->master.suspend_lock);
 	}
 	return rc;
 }
 
 static void concat_resume(struct mtd_info *mtd)
 {
+	struct mtd_info *master = mtd_get_master(mtd);
 	struct mtd_concat *concat = CONCAT(mtd);
 	int i;
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		mtd_resume(subdev);
+		down_write(&master->master.suspend_lock);
+		__mtd_resume(subdev);
+		up_write(&master->master.suspend_lock);
 	}
 }
 
-- 
2.33.0


^ permalink raw reply related	[flat|nested] 23+ messages in thread

* Re: [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 11:52 ` [PATCH 3/3] mtd: mtdconcat: add suspend lock handling Sean Nyekjaer
@ 2021-10-11 13:15   ` Boris Brezillon
  2021-10-11 13:27     ` Boris Brezillon
  2021-10-11 13:58   ` Boris Brezillon
  1 sibling, 1 reply; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 13:15 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 13:52:53 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> Use new suspend lock handling for this special case for concatenated
> MTD devices.
> 
> Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> ---
>  drivers/mtd/mtdconcat.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
> index f685a581df48..c497c851481f 100644
> --- a/drivers/mtd/mtdconcat.c
> +++ b/drivers/mtd/mtdconcat.c
> @@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
>  
>  static int concat_suspend(struct mtd_info *mtd)
>  {
> +	struct mtd_info *master = mtd_get_master(mtd);
>  	struct mtd_concat *concat = CONCAT(mtd);
>  	int i, rc = 0;
>  
>  	for (i = 0; i < concat->num_subdev; i++) {
>  		struct mtd_info *subdev = concat->subdev[i];
> -		if ((rc = mtd_suspend(subdev)) < 0)
> +
> +		down_write(&master->master.suspend_lock);
> +		if ((rc = __mtd_suspend(subdev)) < 0)
>  			return rc;
> +		up_write(&master->master.suspend_lock);
>  	}
>  	return rc;
>  }
>  
>  static void concat_resume(struct mtd_info *mtd)
>  {
> +	struct mtd_info *master = mtd_get_master(mtd);
>  	struct mtd_concat *concat = CONCAT(mtd);
>  	int i;
>  
>  	for (i = 0; i < concat->num_subdev; i++) {
>  		struct mtd_info *subdev = concat->subdev[i];
> -		mtd_resume(subdev);
> +		down_write(&master->master.suspend_lock);
> +		__mtd_resume(subdev);
> +		up_write(&master->master.suspend_lock);
>  	}
>  }
>  

Why do we need to implement the _suspend/_resume() hooks here? The
underlying MTD devices should be suspended at some point (when the
class ->suspend() method is called on those device), and there's
nothing mtdconcat-specific to do here. Looks like implementing this
suspend-all-subdevs loop results in calling mtd->_suspend()/_resume()
twice, which is useless. The only issue I see is if the subdevices
haven't been registered to the device model, but that happens, I
believe we have bigger issues (those devices won't be suspended when
mtdconcat is not used).

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 13:15   ` Boris Brezillon
@ 2021-10-11 13:27     ` Boris Brezillon
  2021-10-11 13:35       ` Sean Nyekjaer
  0 siblings, 1 reply; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 13:27 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 15:15:01 +0200
Boris Brezillon <boris.brezillon@collabora.com> wrote:

> On Mon, 11 Oct 2021 13:52:53 +0200
> Sean Nyekjaer <sean@geanix.com> wrote:
> 
> > Use new suspend lock handling for this special case for concatenated
> > MTD devices.
> > 
> > Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> > Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> > ---
> >  drivers/mtd/mtdconcat.c | 11 +++++++++--
> >  1 file changed, 9 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
> > index f685a581df48..c497c851481f 100644
> > --- a/drivers/mtd/mtdconcat.c
> > +++ b/drivers/mtd/mtdconcat.c
> > @@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
> >  
> >  static int concat_suspend(struct mtd_info *mtd)
> >  {
> > +	struct mtd_info *master = mtd_get_master(mtd);
> >  	struct mtd_concat *concat = CONCAT(mtd);
> >  	int i, rc = 0;
> >  
> >  	for (i = 0; i < concat->num_subdev; i++) {
> >  		struct mtd_info *subdev = concat->subdev[i];
> > -		if ((rc = mtd_suspend(subdev)) < 0)
> > +
> > +		down_write(&master->master.suspend_lock);
> > +		if ((rc = __mtd_suspend(subdev)) < 0)
> >  			return rc;
> > +		up_write(&master->master.suspend_lock);
> >  	}
> >  	return rc;
> >  }
> >  
> >  static void concat_resume(struct mtd_info *mtd)
> >  {
> > +	struct mtd_info *master = mtd_get_master(mtd);
> >  	struct mtd_concat *concat = CONCAT(mtd);
> >  	int i;
> >  
> >  	for (i = 0; i < concat->num_subdev; i++) {
> >  		struct mtd_info *subdev = concat->subdev[i];
> > -		mtd_resume(subdev);
> > +		down_write(&master->master.suspend_lock);
> > +		__mtd_resume(subdev);
> > +		up_write(&master->master.suspend_lock);
> >  	}
> >  }
> >    
> 
> Why do we need to implement the _suspend/_resume() hooks here? The
> underlying MTD devices should be suspended at some point (when the
> class ->suspend() method is called on those device), and there's
> nothing mtdconcat-specific to do here. Looks like implementing this
> suspend-all-subdevs loop results in calling mtd->_suspend()/_resume()
> twice, which is useless. The only issue I see is if the subdevices
> haven't been registered to the device model, but that happens, I
> believe we have bigger issues (those devices won't be suspended when
> mtdconcat is not used).


Uh, just had a look at mtd_concat_create() callers, and they indeed
don't register the subdevices, so I guess the suspend-all-subdevs loop
is needed. I really thought mtdconcat was something more generic
aggregating already registered devices...

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 13:27     ` Boris Brezillon
@ 2021-10-11 13:35       ` Sean Nyekjaer
  2021-10-11 13:49         ` Boris Brezillon
  0 siblings, 1 reply; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-11 13:35 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, Oct 11, 2021 at 03:27:03PM +0200, Boris Brezillon wrote:
> On Mon, 11 Oct 2021 15:15:01 +0200
> Boris Brezillon <boris.brezillon@collabora.com> wrote:
> 
> > On Mon, 11 Oct 2021 13:52:53 +0200
> > Sean Nyekjaer <sean@geanix.com> wrote:
> > 
> > > Use new suspend lock handling for this special case for concatenated
> > > MTD devices.
> > > 
> > > Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> > > Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> > > ---
> > >  drivers/mtd/mtdconcat.c | 11 +++++++++--
> > >  1 file changed, 9 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
> > > index f685a581df48..c497c851481f 100644
> > > --- a/drivers/mtd/mtdconcat.c
> > > +++ b/drivers/mtd/mtdconcat.c
> > > @@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
> > >  
> > >  static int concat_suspend(struct mtd_info *mtd)
> > >  {
> > > +	struct mtd_info *master = mtd_get_master(mtd);
> > >  	struct mtd_concat *concat = CONCAT(mtd);
> > >  	int i, rc = 0;
> > >  
> > >  	for (i = 0; i < concat->num_subdev; i++) {
> > >  		struct mtd_info *subdev = concat->subdev[i];
> > > -		if ((rc = mtd_suspend(subdev)) < 0)
> > > +
> > > +		down_write(&master->master.suspend_lock);
> > > +		if ((rc = __mtd_suspend(subdev)) < 0)
> > >  			return rc;
> > > +		up_write(&master->master.suspend_lock);
> > >  	}
> > >  	return rc;
> > >  }
> > >  
> > >  static void concat_resume(struct mtd_info *mtd)
> > >  {
> > > +	struct mtd_info *master = mtd_get_master(mtd);
> > >  	struct mtd_concat *concat = CONCAT(mtd);
> > >  	int i;
> > >  
> > >  	for (i = 0; i < concat->num_subdev; i++) {
> > >  		struct mtd_info *subdev = concat->subdev[i];
> > > -		mtd_resume(subdev);
> > > +		down_write(&master->master.suspend_lock);
> > > +		__mtd_resume(subdev);
> > > +		up_write(&master->master.suspend_lock);
> > >  	}
> > >  }
> > >    
> > 
> > Why do we need to implement the _suspend/_resume() hooks here? The
> > underlying MTD devices should be suspended at some point (when the
> > class ->suspend() method is called on those device), and there's
> > nothing mtdconcat-specific to do here. Looks like implementing this
> > suspend-all-subdevs loop results in calling mtd->_suspend()/_resume()
> > twice, which is useless. The only issue I see is if the subdevices
> > haven't been registered to the device model, but that happens, I
> > believe we have bigger issues (those devices won't be suspended when
> > mtdconcat is not used).
> 
> 
> Uh, just had a look at mtd_concat_create() callers, and they indeed
> don't register the subdevices, so I guess the suspend-all-subdevs loop
> is needed. I really thought mtdconcat was something more generic
> aggregating already registered devices...

Hi Boris,

Cool, mtd_concat should be seen as mtd devices concatenated? Could be
spi-nors and rawnand. So _suspend() needs to be called for every device
layer?

From what I see here, mtd_suspend()/mtd_resume() is called for every mtd
device. Before this patch mtd_suspend() would only have effect on the
first device as master->master.suspended is set and then calls to
device specific _suspend() is skipped.

Correct?

/Sean

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
@ 2021-10-11 13:37   ` Boris Brezillon
  2021-10-14  6:50   ` [mtd] d3ff51cfa9: WARNING:at_kernel/locking/rwsem.c:#down_read kernel test robot
  2021-10-15  6:55   ` [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend Boris Brezillon
  2 siblings, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 13:37 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 13:52:51 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> Prevent accessing the devices while in a suspended state. Also
> prevent suspending a device which is still currently in use.
> 
> Commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") allows the
> rawnand layer to return errors rather than waiting in a blocking wait.
> 
> Tested on a iMX6ULL.
> 
> Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
> Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> ---
>  drivers/mtd/mtdcore.c   | 133 +++++++++++++++++++++++++++++++++++-----
>  include/linux/mtd/mtd.h | 109 +++++++++++++++++++++++++++-----
>  2 files changed, 211 insertions(+), 31 deletions(-)
> 
> diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
> index c8fd7f758938..51be9b46ef54 100644
> --- a/drivers/mtd/mtdcore.c
> +++ b/drivers/mtd/mtdcore.c
> @@ -777,6 +777,8 @@ static void mtd_set_dev_defaults(struct mtd_info *mtd)
>  	INIT_LIST_HEAD(&mtd->partitions);
>  	mutex_init(&mtd->master.partitions_lock);
>  	mutex_init(&mtd->master.chrdev_lock);
> +	init_waitqueue_head(&mtd->master.resume_wq);
> +	init_rwsem(&mtd->master.suspend_lock);
>  }
>  
>  static ssize_t mtd_otp_size(struct mtd_info *mtd, bool is_user)
> @@ -1257,6 +1259,8 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
>  
>  	ledtrig_mtd_activity();
>  
> +	mtd_start_access(mtd);
> +
>  	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION) {
>  		adjinstr.addr = (loff_t)mtd_div_by_eb(instr->addr, mtd) *
>  				master->erasesize;
> @@ -1278,6 +1282,8 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
>  		}
>  	}
>  
> +	mtd_end_access(mtd);
> +
>  	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_erase);
> @@ -1289,6 +1295,7 @@ int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
>  	      void **virt, resource_size_t *phys)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	*retlen = 0;
>  	*virt = NULL;
> @@ -1301,8 +1308,12 @@ int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
>  	if (!len)
>  		return 0;
>  
> +	mtd_start_access(mtd);
>  	from = mtd_get_master_ofs(mtd, from);
> -	return master->_point(master, from, len, retlen, virt, phys);
> +	ret = master->_point(master, from, len, retlen, virt, phys);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_point);
>  
> @@ -1310,6 +1321,7 @@ EXPORT_SYMBOL_GPL(mtd_point);
>  int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_unpoint)
>  		return -EOPNOTSUPP;
> @@ -1317,7 +1329,12 @@ int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
>  		return -EINVAL;
>  	if (!len)
>  		return 0;
> -	return master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);
> +
> +	mtd_start_access(mtd);
> +	ret =  master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_unpoint);
>  
> @@ -1372,6 +1389,7 @@ int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
>  	};
>  	int ret;
>  
> +	/* mtd_read_oob handles mtd access protection */
>  	ret = mtd_read_oob(mtd, from, &ops);
>  	*retlen = ops.retlen;
>  
> @@ -1388,6 +1406,7 @@ int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
>  	};
>  	int ret;
>  
> +	/* mtd_write_oob handles mtd access protection */
>  	ret = mtd_write_oob(mtd, to, &ops);
>  	*retlen = ops.retlen;
>  
> @@ -1406,6 +1425,7 @@ int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
>  		    const u_char *buf)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	*retlen = 0;
>  	if (!master->_panic_write)
> @@ -1419,8 +1439,12 @@ int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
>  	if (!master->oops_panic_write)
>  		master->oops_panic_write = true;
>  
> -	return master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,
> -				    retlen, buf);
> +	mtd_start_access(mtd);
> +	ret = master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,
> +				   retlen, buf);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_panic_write);
>  
> @@ -1566,6 +1590,8 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
>  
>  	ledtrig_mtd_activity();
>  
> +	mtd_start_access(mtd);
> +
>  	/* Check the validity of a potential fallback on mtd->_read */
>  	if (!master->_read_oob && (!master->_read || ops->oobbuf))
>  		return -EOPNOTSUPP;
> @@ -1576,7 +1602,7 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
>  		ret_code = mtd_read_oob_std(mtd, from, ops);
>  
>  	mtd_update_ecc_stats(mtd, master, &old_stats);
> -
> +	mtd_end_access(mtd);
>  	/*
>  	 * In cases where ops->datbuf != NULL, mtd->_read_oob() has semantics
>  	 * similar to mtd->_read(), returning a non-negative integer
> @@ -1597,6 +1623,8 @@ int mtd_write_oob(struct mtd_info *mtd, loff_t to,
>  	struct mtd_info *master = mtd_get_master(mtd);
>  	int ret;
>  
> +	mtd_start_access(mtd);
> +
>  	ops->retlen = ops->oobretlen = 0;
>  
>  	if (!(mtd->flags & MTD_WRITEABLE))
> @@ -1615,7 +1643,10 @@ int mtd_write_oob(struct mtd_info *mtd, loff_t to,
>  	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
>  		return mtd_io_emulated_slc(mtd, to, false, ops);
>  
> -	return mtd_write_oob_std(mtd, to, ops);
> +	ret = mtd_write_oob_std(mtd, to, ops);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_write_oob);
>  
> @@ -1992,12 +2023,18 @@ int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
>  			   struct otp_info *buf)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_get_fact_prot_info)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_get_fact_prot_info(master, len, retlen, buf);
> +
> +	mtd_start_access(mtd);
> +	ret = master->_get_fact_prot_info(master, len, retlen, buf);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_get_fact_prot_info);
>  
> @@ -2005,13 +2042,19 @@ int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
>  			   size_t *retlen, u_char *buf)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	*retlen = 0;
>  	if (!master->_read_fact_prot_reg)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_read_fact_prot_reg(master, from, len, retlen, buf);
> +
> +	mtd_start_access(mtd);
> +	ret = master->_read_fact_prot_reg(master, from, len, retlen, buf);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_read_fact_prot_reg);
>  
> @@ -2019,12 +2062,18 @@ int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
>  			   struct otp_info *buf)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_get_user_prot_info)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_get_user_prot_info(master, len, retlen, buf);
> +
> +	mtd_start_access(mtd);
> +	ret =  master->_get_user_prot_info(master, len, retlen, buf);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_get_user_prot_info);
>  
> @@ -2032,13 +2081,19 @@ int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
>  			   size_t *retlen, u_char *buf)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	*retlen = 0;
>  	if (!master->_read_user_prot_reg)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_read_user_prot_reg(master, from, len, retlen, buf);
> +
> +	mtd_start_access(mtd);
> +	ret = master->_read_user_prot_reg(master, from, len, retlen, buf);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_read_user_prot_reg);
>  
> @@ -2053,7 +2108,11 @@ int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> +
> +	mtd_start_access(mtd);
>  	ret = master->_write_user_prot_reg(master, to, len, retlen, buf);
> +	mtd_end_access(mtd);
> +
>  	if (ret)
>  		return ret;
>  
> @@ -2068,24 +2127,36 @@ EXPORT_SYMBOL_GPL(mtd_write_user_prot_reg);
>  int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_lock_user_prot_reg)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_lock_user_prot_reg(master, from, len);
> +
> +	mtd_start_access(mtd);
> +	ret = master->_lock_user_prot_reg(master, from, len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_lock_user_prot_reg);
>  
>  int mtd_erase_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_erase_user_prot_reg)
>  		return -EOPNOTSUPP;
>  	if (!len)
>  		return 0;
> -	return master->_erase_user_prot_reg(master, from, len);
> +
> +	mtd_start_access(mtd);
> +	ret = master->_erase_user_prot_reg(master, from, len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_erase_user_prot_reg);
>  
> @@ -2093,6 +2164,7 @@ EXPORT_SYMBOL_GPL(mtd_erase_user_prot_reg);
>  int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_lock)
>  		return -EOPNOTSUPP;
> @@ -2106,13 +2178,18 @@ int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
>  	}
>  
> -	return master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_start_access(mtd);
> +	ret = master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_lock);
>  
>  int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_unlock)
>  		return -EOPNOTSUPP;
> @@ -2126,13 +2203,18 @@ int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
>  	}
>  
> -	return master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_start_access(mtd);
> +	ret = master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_unlock);
>  
>  int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_is_locked)
>  		return -EOPNOTSUPP;
> @@ -2146,13 +2228,18 @@ int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
>  		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;
>  	}
>  
> -	return master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_start_access(mtd);
> +	ret = master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_is_locked);
>  
>  int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (ofs < 0 || ofs >= mtd->size)
>  		return -EINVAL;
> @@ -2162,13 +2249,18 @@ int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs)
>  	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
>  		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
>  
> -	return master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));
> +	mtd_start_access(mtd);
> +	ret = master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_block_isreserved);
>  
>  int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (ofs < 0 || ofs >= mtd->size)
>  		return -EINVAL;
> @@ -2178,7 +2270,11 @@ int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
>  	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
>  		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
>  
> -	return master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));
> +	mtd_start_access(mtd);
> +	ret = master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  EXPORT_SYMBOL_GPL(mtd_block_isbad);
>  
> @@ -2197,7 +2293,10 @@ int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs)
>  	if (mtd->flags & MTD_SLC_ON_MLC_EMULATION)
>  		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;
>  
> +	mtd_start_access(mtd);
>  	ret = master->_block_markbad(master, mtd_get_master_ofs(mtd, ofs));
> +	mtd_end_access(mtd);
> +
>  	if (ret)
>  		return ret;
>  
> diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
> index 88227044fc86..7765d1fcfc8b 100644
> --- a/include/linux/mtd/mtd.h
> +++ b/include/linux/mtd/mtd.h
> @@ -231,6 +231,8 @@ struct mtd_master {
>  	struct mutex partitions_lock;
>  	struct mutex chrdev_lock;
>  	unsigned int suspended : 1;
> +	wait_queue_head_t resume_wq;
> +	struct rw_semaphore suspend_lock;
>  };
>  
>  struct mtd_info {
> @@ -476,10 +478,49 @@ static inline u32 mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops)
>  	return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize;
>  }
>  
> +static inline void mtd_start_access(struct mtd_info *mtd)
> +{
> +	struct mtd_info *master = mtd_get_master(mtd);
> +
> +	/*
> +	 * Don't take the suspend_lock on devices that don't
> +	 * implement the suspend hook. Otherwise, lockdep will
> +	 * complain about nested locks when trying to suspend MTD
> +	 * partitions or MTD devices created by gluebi which are
> +	 * backed by real devices.
> +	 */
> +	if (!master->_suspend)
> +		return;
> +
> +	/*
> +	 * Wait until the device is resumed. Should we have a
> +	 * non-blocking mode here?
> +	 */
> +	while (1) {
> +		down_read(&master->master.suspend_lock);
> +		if (!master->master.suspended)
> +			return;
> +
> +		up_read(&master->master.suspend_lock);
> +		wait_event(master->master.resume_wq, master->master.suspended == 0);
> +	}
> +}
> +
> +static inline void mtd_end_access(struct mtd_info *mtd)
> +{
> +	struct mtd_info *master = mtd_get_master(mtd);
> +
> +	if (!master->_suspend)
> +		return;
> +
> +	up_read(&master->master.suspend_lock);
> +}
> +
>  static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
>  				     loff_t ofs, size_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_max_bad_blocks)
>  		return -ENOTSUPP;
> @@ -487,8 +528,12 @@ static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
>  	if (mtd->size < (len + ofs) || ofs < 0)
>  		return -EINVAL;
>  
> -	return master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
> -				       len);
> +	mtd_start_access(mtd);
> +	ret = master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
> +				      len);
> +	mtd_end_access(mtd);
> +
> +	return ret;
>  }
>  
>  int mtd_wunit_to_pairing_info(struct mtd_info *mtd, int wunit,
> @@ -543,33 +588,69 @@ int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs);
>  int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
>  int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
>  
> +static inline int __mtd_suspend(struct mtd_info *mtd)

Please give it a proper name, like mtd_suspend_locked().

I'm really not found of this solution where we let mtdconcat grab the
lock and call the mtd_{suspend,resume}_locked() variant on its
subdevices, but fixing it in a sane way would require registering the
subdevices, which is likely to mess up with the MTD dev numbering and
cause even more pain. But please add comment explaining why you need to
expose those _locked() variants, with a big 'DON'T USE UNLESS YOU'RE
MTDCONCAT' disclaimer. Or maybe even better, open-code the _locked()
variants in mtdconcat so others don't get tempted to use it.

> +{
> +	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret = 0;
> +
> +	if (!master->_suspend)
> +		return ret;
> +
> +	if (!master->master.suspended) {
> +		ret = master->_suspend(master);
> +		if (!ret)
> +			master->master.suspended = 1;
> +	}
> +
> +	return ret;
> +}
> +
>  static inline int mtd_suspend(struct mtd_info *mtd)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> -	int ret;
> +	int ret = 0;
>  
> -	if (master->master.suspended)
> -		return 0;
> +	if (!master->_suspend)
> +		return ret;
>  
> -	ret = master->_suspend ? master->_suspend(master) : 0;
> -	if (ret)
> +	down_write(&master->master.suspend_lock);
> +	ret = __mtd_suspend(mtd);
> +	up_write(&master->master.suspend_lock);
> +
> +	return ret;
> +}
> +
> +static inline int __mtd_resume(struct mtd_info *mtd)
> +{
> +	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret = 0;
> +
> +	if (!master->_suspend)
>  		return ret;
>  
> -	master->master.suspended = 1;
> -	return 0;
> +	if (master->master.suspended) {
> +		if (master->_resume)
> +			master->_resume(master);
> +
> +		master->master.suspended = 0;
> +		ret = 1;
> +	}
> +
> +	return ret;
>  }
>  
>  static inline void mtd_resume(struct mtd_info *mtd)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
>  
> -	if (!master->master.suspended)
> +	if (!master->_suspend)
>  		return;
>  
> -	if (master->_resume)
> -		master->_resume(master);
> -
> -	master->master.suspended = 0;
> +	down_write(&master->master.suspend_lock);
> +	/* If MTD dev has been resumed, wake up all waiters. */
> +	if (__mtd_resume(mtd))
> +		wake_up_all(&master->master.resume_wq);
> +	up_write(&master->master.suspend_lock);
>  }
>  
>  static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)


^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 13:35       ` Sean Nyekjaer
@ 2021-10-11 13:49         ` Boris Brezillon
  0 siblings, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 13:49 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 15:35:56 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> On Mon, Oct 11, 2021 at 03:27:03PM +0200, Boris Brezillon wrote:
> > On Mon, 11 Oct 2021 15:15:01 +0200
> > Boris Brezillon <boris.brezillon@collabora.com> wrote:
> >   
> > > On Mon, 11 Oct 2021 13:52:53 +0200
> > > Sean Nyekjaer <sean@geanix.com> wrote:
> > >   
> > > > Use new suspend lock handling for this special case for concatenated
> > > > MTD devices.
> > > > 
> > > > Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> > > > Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> > > > ---
> > > >  drivers/mtd/mtdconcat.c | 11 +++++++++--
> > > >  1 file changed, 9 insertions(+), 2 deletions(-)
> > > > 
> > > > diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
> > > > index f685a581df48..c497c851481f 100644
> > > > --- a/drivers/mtd/mtdconcat.c
> > > > +++ b/drivers/mtd/mtdconcat.c
> > > > @@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
> > > >  
> > > >  static int concat_suspend(struct mtd_info *mtd)
> > > >  {
> > > > +	struct mtd_info *master = mtd_get_master(mtd);
> > > >  	struct mtd_concat *concat = CONCAT(mtd);
> > > >  	int i, rc = 0;
> > > >  
> > > >  	for (i = 0; i < concat->num_subdev; i++) {
> > > >  		struct mtd_info *subdev = concat->subdev[i];
> > > > -		if ((rc = mtd_suspend(subdev)) < 0)
> > > > +
> > > > +		down_write(&master->master.suspend_lock);
> > > > +		if ((rc = __mtd_suspend(subdev)) < 0)
> > > >  			return rc;
> > > > +		up_write(&master->master.suspend_lock);
> > > >  	}
> > > >  	return rc;
> > > >  }
> > > >  
> > > >  static void concat_resume(struct mtd_info *mtd)
> > > >  {
> > > > +	struct mtd_info *master = mtd_get_master(mtd);
> > > >  	struct mtd_concat *concat = CONCAT(mtd);
> > > >  	int i;
> > > >  
> > > >  	for (i = 0; i < concat->num_subdev; i++) {
> > > >  		struct mtd_info *subdev = concat->subdev[i];
> > > > -		mtd_resume(subdev);
> > > > +		down_write(&master->master.suspend_lock);
> > > > +		__mtd_resume(subdev);
> > > > +		up_write(&master->master.suspend_lock);
> > > >  	}
> > > >  }
> > > >      
> > > 
> > > Why do we need to implement the _suspend/_resume() hooks here? The
> > > underlying MTD devices should be suspended at some point (when the
> > > class ->suspend() method is called on those device), and there's
> > > nothing mtdconcat-specific to do here. Looks like implementing this
> > > suspend-all-subdevs loop results in calling mtd->_suspend()/_resume()
> > > twice, which is useless. The only issue I see is if the subdevices
> > > haven't been registered to the device model, but that happens, I
> > > believe we have bigger issues (those devices won't be suspended when
> > > mtdconcat is not used).  
> > 
> > 
> > Uh, just had a look at mtd_concat_create() callers, and they indeed
> > don't register the subdevices, so I guess the suspend-all-subdevs loop
> > is needed. I really thought mtdconcat was something more generic
> > aggregating already registered devices...  
> 
> Hi Boris,
> 
> Cool, mtd_concat should be seen as mtd devices concatenated? Could be
> spi-nors and rawnand. So _suspend() needs to be called for every device
> layer?

If those subdevices were registered as MTD devices too, you wouldn't
have to call ->_suspend()/_resume() on the subdevices (the core does it
for you for every registered 'struct device' object).

> 
> From what I see here, mtd_suspend()/mtd_resume() is called for every mtd
> device. Before this patch mtd_suspend() would only have effect on the
> first device as master->master.suspended is set and then calls to
> device specific _suspend() is skipped.

Unfortunately, subdevices are not exposed to the MTD framework, only the
aggregate is, so suspend is called once in that case, and the mtdconcat
layer has to propagate it to all its subdevices. This makes mtdconcat
unsuitable for a generic MTD aggregation layer BTW (which I remember
discussing with someone on the MTD ML in the past).


^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 3/3] mtd: mtdconcat: add suspend lock handling
  2021-10-11 11:52 ` [PATCH 3/3] mtd: mtdconcat: add suspend lock handling Sean Nyekjaer
  2021-10-11 13:15   ` Boris Brezillon
@ 2021-10-11 13:58   ` Boris Brezillon
  1 sibling, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 13:58 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 13:52:53 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> Use new suspend lock handling for this special case for concatenated
> MTD devices.
> 
> Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
> Signed-off-by: Sean Nyekjaer <sean@geanix.com>
> ---
>  drivers/mtd/mtdconcat.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
> index f685a581df48..c497c851481f 100644
> --- a/drivers/mtd/mtdconcat.c
> +++ b/drivers/mtd/mtdconcat.c
> @@ -561,25 +561,32 @@ static void concat_sync(struct mtd_info *mtd)
>  
>  static int concat_suspend(struct mtd_info *mtd)
>  {
> +	struct mtd_info *master = mtd_get_master(mtd);
>  	struct mtd_concat *concat = CONCAT(mtd);
>  	int i, rc = 0;
>  
>  	for (i = 0; i < concat->num_subdev; i++) {
>  		struct mtd_info *subdev = concat->subdev[i];
> -		if ((rc = mtd_suspend(subdev)) < 0)
> +
> +		down_write(&master->master.suspend_lock);

You should definitely not take the concat lock here, the framework does
it for you, so all you'll get is a deadlock.

> +		if ((rc = __mtd_suspend(subdev)) < 0)
>  			return rc;

You're returning with the lock held => DEADLOCK next time you try to
acquire it.

Anyway, as mentioned in my review of patch 1, I'd go for this ad-hoc
solution:


	for (i = 0; i < concat->num_subdev; i++) {
		rc = subdev->_suspend ? subdev->_suspend(subdev) : 0;
		if (rc < 0)
			return rc;
	}

	return 0;

> +		up_write(&master->master.suspend_lock);
>  	}
>  	return rc;
>  }
>  
>  static void concat_resume(struct mtd_info *mtd)
>  {
> +	struct mtd_info *master = mtd_get_master(mtd);
>  	struct mtd_concat *concat = CONCAT(mtd);
>  	int i;
>  
>  	for (i = 0; i < concat->num_subdev; i++) {
>  		struct mtd_info *subdev = concat->subdev[i];
> -		mtd_resume(subdev);
> +		down_write(&master->master.suspend_lock);
> +		__mtd_resume(subdev);
> +		up_write(&master->master.suspend_lock);
>  	}

No down/up_write() needed:

  	for (i = 0; i < concat->num_subdev; i++) {
  		struct mtd_info *subdev = concat->subdev[i];
		if (subdev->_resume)
			subdev->_resume(subdev);

	}
>  }
>  


^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-11 11:52 [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
                   ` (2 preceding siblings ...)
  2021-10-11 11:52 ` [PATCH 3/3] mtd: mtdconcat: add suspend lock handling Sean Nyekjaer
@ 2021-10-11 14:05 ` Boris Brezillon
  2021-10-15  6:22   ` Miquel Raynal
  3 siblings, 1 reply; 23+ messages in thread
From: Boris Brezillon @ 2021-10-11 14:05 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 13:52:50 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> Follow-up on discussion in https://lkml.org/lkml/2021/10/4/41
> 
> Changes since from rfc v1/v2:
>  - added access protection for all device access hooks in mtd_info.
>  - added Suggested-by to [1/3] patch.
>  - removed refereces to commit ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op")
>    from commit msg as commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") is 
>    to be blamed.
>  - tested on a kernel with LOCKDEP enabled.
> 
> @Miquel: I havn't covered every ioctl, to me it looks like they havn't
> direct device access.
> 
> One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> initialized. Seems cumbersome to have every mtd/nand driver to call
> init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> to mtd_set_dev_defaults() before nand_create_bbt()?

I have a nasty trick for that one, but I'm not sure Miquel will like it
(actually, I don't like it either, but it's so simple compared to the
other options we have that I'm tempted to go for this approach until
someone has time to invest in a cleaner solution :-)):

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 3d6c6e880520..a9ac2d528a4d 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
        mtd->_sync = nand_sync;
        mtd->_lock = nand_lock;
        mtd->_unlock = nand_unlock;
-       mtd->_suspend = nand_suspend;
-       mtd->_resume = nand_resume;
        mtd->_reboot = nand_shutdown;
        mtd->_block_isreserved = nand_block_isreserved;
        mtd->_block_isbad = nand_block_isbad;
@@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
        if (ret)
                goto err_free_secure_regions;
 
+       /*
+        * Populate the suspend/resume hooks after the BBT has been scanned to
+        * avoid using the suspend lock and resume waitqueue which are only
+        * initialized when mtd_device_register() is called.
+        */
+       mtd->_suspend = nand_suspend;
+       mtd->_resume = nand_resume;
        return 0;
 
 err_free_secure_regions:



> 
> ---
> nand: device found, Manufacturer ID: 0x98, Chip ID: 0xdc
> nand: Toshiba NAND 512MiB 3,3V 8-bit
> nand: 512 MiB, SLC, erase size: 256 KiB, page size: 4096, OOB size: 128
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 1 at kernel/locking/rwsem.c:1240 down_read+0x160/0x184
> DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x0, magic = 0x0, owner = 0x0, curr 0xc40b0000, list not empty 
> Modules linked in:
> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc3-00002-g7eab985fa8cd-dirty #163 
> Hardware name: Freescale i.MX6 Ultralite (Device Tree)
> [<c010fa90>] (unwind_backtrace) from [<c010b8fc>] (show_stack+0x10/0x14)
> [<c010b8fc>] (show_stack) from [<c0b34998>] (dump_stack_lvl+0x58/0x70)
> [<c0b34998>] (dump_stack_lvl) from [<c0123884>] (__warn+0xd4/0x154) 
> [<c0123884>] (__warn) from [<c0b2e9ac>] (warn_slowpath_fmt+0x94/0xbc)
> [<c0b2e9ac>] (warn_slowpath_fmt) from [<c0b428c8>] (down_read+0x160/0x184)
> [<c0b428c8>] (down_read) from [<c06df42c>] (mtd_read_oob+0xc8/0x284)
> [<c06df42c>] (mtd_read_oob) from [<c06f28cc>] (scan_block_fast+0x78/0xf4) 
> [<c06f28cc>] (scan_block_fast) from [<c06f3c14>] (search_bbt+0x268/0x304) 
> [<c06f3c14>] (search_bbt) from [<c06f3ef0>] (nand_create_bbt+0x240/0x6dc) 
> [<c06f3ef0>] (nand_create_bbt) from [<c06fa758>] (gpmi_nand_probe+0x568/0x6d0)
> [<c06fa758>] (gpmi_nand_probe) from [<c068731c>] (platform_probe+0x58/0xb8)
> [<c068731c>] (platform_probe) from [<c0684a48>] (really_probe.part.0+0x9c/0x32c)
> [<c0684a48>] (really_probe.part.0) from [<c0684d78>] (__driver_probe_device+0xa0/0x138) 
> [<c0684d78>] (__driver_probe_device) from [<c0684e40>] (driver_probe_device+0x30/0x10c) 
> [<c0684e40>] (driver_probe_device) from [<c0685510>] (__driver_attach+0xb4/0x174) 
> [<c0685510>] (__driver_attach) from [<c0682b84>] (bus_for_each_dev+0x78/0xb8) 
> [<c0682b84>] (bus_for_each_dev) from [<c0683ea4>] (bus_add_driver+0xf0/0x1d8) 
> [<c0683ea4>] (bus_add_driver) from [<c0686270>] (driver_register+0x88/0x118)
> [<c0686270>] (driver_register) from [<c0102108>] (do_one_initcall+0x74/0x378) 
> [<c0102108>] (do_one_initcall) from [<c1001304>] (kernel_init_freeable+0x2a4/0x348) 
> [<c1001304>] (kernel_init_freeable) from [<c0b3bc34>] (kernel_init+0x10/0x124)
> [<c0b3bc34>] (kernel_init) from [<c010011c>] (ret_from_fork+0x14/0x38)
> Exception stack(0xc40a7fb0 to 0xc40a7ff8) 
> 7fa0: ???????? ???????? ???????? ???????? 
> 7fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? 
> 7fe0: ???????? ???????? ???????? ???????? ???????? ???????? 
> irq event stamp: 110936 
> hardirqs lastenabled at (110935): [<c0100b04>] __irq_svc+0x64/0x80
> hardirqs last disabled at (110936): [<c0100af0>] __irq_svc+0x50/0x80
> softirqs lastenabled at (110906): [<c093818c>] netlink_insert+0x60/0x8a4
> softirqs last disabled at (110904): [<c08ac6d4>] release_sock+0x18/0x98 
> ---[ end trace c70a1a8da23b619d ]---
> Bad block table found at page 131008, version 0x01
> Bad block table found at page 130944, version 0x01
> ---
> 
> Sean Nyekjaer (3):
>   mtd: core: protect access to MTD devices while in suspend
>   mtd: rawnand: remove suspended check
>   mtd: mtdconcat: add suspend lock handling

Patch 3 (with the suggested changes) should be moved at the beginning of
the series to keep things bisectable.

> 
>  drivers/mtd/mtdconcat.c          |  11 ++-
>  drivers/mtd/mtdcore.c            | 133 +++++++++++++++++++++++++++----
>  drivers/mtd/nand/raw/nand_base.c |  52 +++---------
>  include/linux/mtd/mtd.h          | 109 +++++++++++++++++++++----
>  include/linux/mtd/rawnand.h      |   5 +-
>  5 files changed, 234 insertions(+), 76 deletions(-)
> 


^ permalink raw reply related	[flat|nested] 23+ messages in thread

* [mtd]  d3ff51cfa9: WARNING:at_kernel/locking/rwsem.c:#down_read
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
  2021-10-11 13:37   ` Boris Brezillon
@ 2021-10-14  6:50   ` kernel test robot
  2021-10-15  6:55   ` [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend Boris Brezillon
  2 siblings, 0 replies; 23+ messages in thread
From: kernel test robot @ 2021-10-14  6:50 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: 0day robot, Boris Brezillon, LKML, lkp, Sean Nyekjaer,
	Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd

[-- Attachment #1: Type: text/plain, Size: 6244 bytes --]



Greeting,

FYI, we noticed the following commit (built with clang-14):

commit: d3ff51cfa9a64cdc18abe24c9821891b5122e617 ("[PATCH 1/3] mtd: core: protect access to MTD devices while in suspend")
url: https://github.com/0day-ci/linux/commits/Sean-Nyekjaer/mtd-core-protect-access-to-mtd-devices-while-in-suspend/20211011-195606
base: https://git.kernel.org/cgit/linux/kernel/git/mtd/linux.git mtd/next

in testcase: boot

on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+----------------------------------------------+------------+------------+
|                                              | b72841e4dc | d3ff51cfa9 |
+----------------------------------------------+------------+------------+
| boot_successes                               | 20         | 0          |
| boot_failures                                | 0          | 21         |
| INFO:trying_to_register_non-static_key       | 0          | 21         |
| WARNING:at_kernel/locking/rwsem.c:#down_read | 0          | 21         |
| EIP:down_read                                | 0          | 21         |
| WARNING:at_kernel/locking/rwsem.c:#__up_read | 0          | 21         |
| EIP:__up_read                                | 0          | 21         |
+----------------------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>


[    4.304729][    T1] ------------[ cut here ]------------
[    4.305194][    T1] DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x0, magic = 0x0, owner = 0x0, curr 0xb3690000, list not empty
[    4.306218][    T1] WARNING: CPU: 1 PID: 1 at kernel/locking/rwsem.c:1240 down_read+0xff/0x110
[    4.306989][    T1] Modules linked in:
[    4.307318][    T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc1-00002-gd3ff51cfa9a6 #1
[    4.308071][    T1] EIP: down_read+0xff/0x110
[    4.308445][    T1] Code: 9f 03 b2 ba 0f 44 d1 52 0f 44 d1 52 ff 75 f0 ff ff 75 f0 ff 00 b2 68 79 00 b2 68 79 c7 d5 5a ff c7 d5 5a ff c4 1c 0f 0b c4 1c <0f> 0b 58 ff ff ff 58 ff ff ff ff 90 90 3e ff 90 90 3e 55 89 e5 53
[    4.310153][    T1] EAX: 00000000 EBX: b15a2702 ECX: 80000001 EDX: 00000001
[    4.310861][    T1] ESI: f5dc0404 EDI: 00000000 EBP: b3693c98 ESP: b3693c84
[    4.311546][    T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010296
[    4.312277][    T1] CR0: 80050033 CR2: 00000000 CR3: 027d9000 CR4: 000406d0
[    4.312919][    T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[    4.313518][    T1] DR6: fffe0ff0 DR7: 00000400
[    4.313926][    T1] Call Trace:
[    4.314237][    T1]  mtd_start_access+0x32/0xc0
[    4.314707][    T1]  ? ledtrig_mtd_activity+0x37/0x40
[    4.315194][    T1]  mtd_read_oob+0x75/0x1e0
[    4.315572][    T1]  scan_block_fast+0x6a/0xc0
[    4.316003][    T1]  create_bbt+0x130/0x2a0
[    4.316399][    T1]  ? __kmalloc+0x146/0x1a0
[    4.316811][    T1]  ? trace_kmalloc_node+0x39/0x100
[    4.317267][    T1]  nand_create_bbt+0x1fe/0x9e0
[    4.317685][    T1]  ? ns_alloc_device+0xa4/0x18b
[    4.318107][    T1]  ? ns_init+0x3b6/0x688
[    4.318459][    T1]  ? __kmalloc+0x146/0x1a0
[    4.318858][    T1]  ns_init_module+0x5f9/0x809
[    4.319254][    T1]  ? __this_cpu_preempt_check+0xf/0x11
[    4.319719][    T1]  ? debug_smp_processor_id+0x12/0x20
[    4.320174][    T1]  ? generic_onenand_driver_init+0x16/0x16
[    4.320662][    T1]  ? rcu_read_lock_sched_held+0x36/0x70
[    4.321122][    T1]  ? generic_onenand_driver_init+0x16/0x16
[    4.321602][    T1]  do_one_initcall+0x93/0x160
[    4.321997][    T1]  ? irqentry_exit+0x56/0x80
[    4.322382][    T1]  ? __this_cpu_preempt_check+0xf/0x11
[    4.322854][    T1]  ? lockdep_hardirqs_on+0x82/0x110
[    4.323273][    T1]  ? irqentry_exit+0x56/0x80
[    4.323642][    T1]  ? sysvec_call_function_single+0x30/0x30
[    4.324124][    T1]  ? trace_hardirqs_on+0x45/0x50
[    4.324523][    T1]  ? irqentry_exit+0x56/0x80
[    4.324893][    T1]  ? sysvec_apic_timer_interrupt+0x29/0x30
[    4.325367][    T1]  ? handle_exception+0x101/0x101
[    4.325776][    T1]  ? p9_client_readlink+0x9b/0xa0
[    4.326186][    T1]  ? strlen+0xd/0x20
[    4.326508][    T1]  ? next_arg+0xfb/0x110
[    4.326877][    T1]  ? parse_args+0x15c/0x330
[    4.327244][    T1]  ? __this_cpu_preempt_check+0xf/0x11
[    4.327688][    T1]  ? debug_smp_processor_id+0x12/0x20
[    4.328155][    T1]  ? generic_onenand_driver_init+0x16/0x16
[    4.328664][    T1]  do_initcall_level+0x80/0x92
[    4.329088][    T1]  ? rest_init+0x1c0/0x1c0
[    4.329475][    T1]  do_initcalls+0x41/0x62
[    4.329838][    T1]  do_basic_setup+0x17/0x19
[    4.330214][    T1]  kernel_init_freeable+0x8c/0xd1
[    4.330657][    T1]  kernel_init+0x17/0x170
[    4.331087][    T1]  ret_from_fork+0x1c/0x28
[    4.331503][    T1] irq event stamp: 319917
[    4.331919][    T1] hardirqs last  enabled at (319917): [<b10e59cc>] __up_console_sem+0x5c/0x90
[    4.332719][    T1] hardirqs last disabled at (319916): [<b10e59b3>] __up_console_sem+0x43/0x90
[    4.333495][    T1] softirqs last  enabled at (318956): [<b121d2f1>] bdi_register_va+0x1d1/0x1f0
[    4.334243][    T1] softirqs last disabled at (318954): [<b121d202>] bdi_register_va+0xe2/0x1f0
[    4.334994][    T1] _warn_unseeded_randomness: 5 callbacks suppressed
[    4.334997][    T1] random: get_random_bytes called from __warn+0xc3/0x140 with crng_init=0
[    4.335006][    T1] ---[ end trace 8e9a8c821c89b3d1 ]---




To reproduce:

        # build kernel
	cd linux
	cp config-5.15.0-rc1-00002-gd3ff51cfa9a6 .config
	make HOSTCC=clang-14 CC=clang-14 ARCH=i386 olddefconfig prepare modules_prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


[-- Attachment #2: config-5.15.0-rc1-00002-gd3ff51cfa9a6 --]
[-- Type: text/plain, Size: 125536 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 5.15.0-rc1 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 14.0.0 (git://gitmirror/llvm_project b6a8c695542b2987eb9a203d5663a0740cb4725f)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=140000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=140000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=140000
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=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_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=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_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
# CONFIG_KERNEL_GZIP is not set
CONFIG_KERNEL_BZIP2=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_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
CONFIG_WATCH_QUEUE=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_USELIB=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_TIME_KUNIT_TEST=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# 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 is not set
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# end of BPF subsystem

# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
# CONFIG_SCHED_CORE is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
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

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RCU=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_DELAY=500
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_TASKS_TRACE_RCU_READ_MB=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
# CONFIG_IPC_NS is not set
CONFIG_USER_NS=y
# 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=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
CONFIG_RD_LZMA=y
# CONFIG_RD_XZ is not set
CONFIG_RD_LZO=y
# CONFIG_RD_LZ4 is not set
CONFIG_RD_ZSTD=y
CONFIG_BOOT_CONFIG=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_PCSPKR_PLATFORM=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
# CONFIG_AIO is not set
# CONFIG_IO_URING is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
# CONFIG_KCMP is not set
# CONFIG_RSEQ 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_VM_EVENT_COUNTERS=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
# CONFIG_SLUB is not set
CONFIG_SLOB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_X86_32=y
CONFIG_FORCE_DYNAMIC_FTRACE=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_X86_32_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=2

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
CONFIG_X86_CPU_RESCTRL=y
CONFIG_X86_BIGSMP=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_RDC321X=y
# CONFIG_X86_32_NON_STANDARD is not set
CONFIG_X86_32_IRIS=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_PARAVIRT_SPINLOCKS is not set
CONFIG_X86_HV_CALLBACK_VECTOR=y
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
# 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=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_INTEL_USERCOPY=y
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_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_CYRIX_32=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_UMC_32=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
# CONFIG_DMI is not set
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=64
CONFIG_NR_CPUS_DEFAULT=32
CONFIG_NR_CPUS=32
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_SCHED_MC_PRIO is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
# CONFIG_X86_MCE_INTEL is not set
CONFIG_X86_MCE_AMD=y
CONFIG_X86_ANCIENT_MCE=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=y

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=y
CONFIG_PERF_EVENTS_INTEL_CSTATE=y
# CONFIG_PERF_EVENTS_AMD_POWER is not set
CONFIG_PERF_EVENTS_AMD_UNCORE=y
# end of Performance monitoring

# CONFIG_X86_LEGACY_VM86 is not set
CONFIG_X86_IOPL_IOPERM=y
CONFIG_TOSHIBA=y
CONFIG_I8K=y
CONFIG_X86_REBOOTFIXUPS=y
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
CONFIG_X86_CPUID=y
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
# CONFIG_VMSPLIT_3G is not set
CONFIG_VMSPLIT_3G_OPT=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_2G_OPT is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xB0000000
CONFIG_HIGHMEM=y
CONFIG_X86_CPA_STATISTICS=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_HIGHPTE=y
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_UMIP=y
# CONFIG_X86_INTEL_TSX_MODE_OFF is not set
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
CONFIG_X86_INTEL_TSX_MODE_AUTO=y
# CONFIG_EFI is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
CONFIG_COMPAT_VDSO=y
# CONFIG_CMDLINE_BOOL is not set
# CONFIG_MODIFY_LDT_SYSCALL is not set
# end of Processor type and features

CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
# CONFIG_SUSPEND is not set
# CONFIG_PM is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
# CONFIG_ACPI_SPCR_TABLE is not set
# CONFIG_ACPI_REV_OVERRIDE_POSSIBLE is not set
CONFIG_ACPI_EC_DEBUGFS=y
CONFIG_ACPI_AC=y
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=y
CONFIG_ACPI_THERMAL=y
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=y
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_CONFIGFS=y
# CONFIG_PMIC_OPREGION is not set
CONFIG_X86_PM_TIMER=y

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
# CONFIG_CPU_IDLE_GOV_MENU is not set
# CONFIG_CPU_IDLE_GOV_TEO is not set
# CONFIG_CPU_IDLE_GOV_HALTPOLL is not set
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
# CONFIG_ISA_BUS is not set
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
CONFIG_SCx200=y
# CONFIG_SCx200HR_TIMER is not set
# CONFIG_OLPC is not set
# CONFIG_ALIX is not set
# CONFIG_NET5501 is not set
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_COMPAT_32=y
# end of Binary Emulations

CONFIG_HAVE_ATOMIC_IOMAP=y

#
# Firmware Drivers
#

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

# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
CONFIG_GOOGLE_FIRMWARE=y
CONFIG_GOOGLE_COREBOOT_TABLE=y
CONFIG_GOOGLE_MEMCONSOLE=y
CONFIG_GOOGLE_MEMCONSOLE_COREBOOT=y
# CONFIG_GOOGLE_VPD is not set

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

CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=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_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=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_HAVE_ARCH_STACKLEAK=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_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_ISA_BUS_API=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SPLIT_ARG64=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=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=1
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 is not set
CONFIG_PADATA=y
CONFIG_ASN1=y
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
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y

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

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
# CONFIG_COMPACTION is not set
CONFIG_PAGE_REPORTING=y
CONFIG_VIRT_TO_BUS=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_TRANSPARENT_HUGEPAGE is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_ZONE_DMA_SET=y
CONFIG_ZONE_DMA=y
CONFIG_PERCPU_STATS=y
CONFIG_GUP_TEST=y
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_KMAP_LOCAL=y

#
# 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_XDP_SOCKETS is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TUNNEL=y
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=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
# CONFIG_NETLABEL 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_DECNET 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_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=m
# 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_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
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=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=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG 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_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
CONFIG_EISA=y
# CONFIG_EISA_VLB_PRIMING is not set
CONFIG_EISA_PCI_EISA=y
# CONFIG_EISA_VIRTUAL_ROOT is not set
# CONFIG_EISA_NAMES is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
# CONFIG_PCIE_PTM is not set
# CONFIG_PCI_MSI is not set
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_LOCKLESS_CONFIG=y
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LABEL=y
# CONFIG_PCIE_BUS_TUNE_OFF is not set
CONFIG_PCIE_BUS_DEFAULT=y
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
# CONFIG_PCIE_BUS_PEER2PEER is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PCI controller drivers
#

#
# DesignWare PCI Core Support
#
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# 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 is not set
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

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

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

# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_PM_QOS_KUNIT_TEST=y
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_DRIVER_PE_KUNIT_TEST=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_W1=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_REGMAP_SOUNDWIRE=y
CONFIG_REGMAP_SOUNDWIRE_MBQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
CONFIG_MHI_BUS=y
# CONFIG_MHI_BUS_DEBUG is not set
# CONFIG_MHI_BUS_PCI_GENERIC is not set
# end of Bus devices

# CONFIG_CONNECTOR is not set
CONFIG_GNSS=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set

#
# Partition parsers
#
CONFIG_MTD_AR7_PARTS=y
# CONFIG_MTD_CMDLINE_PARTS is not set
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
# end of Partition parsers

#
# User Modules And Translation Layers
#
CONFIG_MTD_OOPS=y
# CONFIG_MTD_PARTITIONED_MASTER is not set

#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_CFI_UTIL=y
CONFIG_MTD_RAM=y
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# end of RAM/ROM/Flash chip drivers

#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=y
# CONFIG_MTD_PHYSMAP_COMPAT is not set
# CONFIG_MTD_PHYSMAP_GPIO_ADDR is not set
# CONFIG_MTD_SCx200_DOCFLASH is not set
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
# end of Mapping drivers for chip access

#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
CONFIG_MTD_SLRAM=y
CONFIG_MTD_PHRAM=y
# CONFIG_MTD_MTDRAM is not set

#
# Disk-On-Chip Device Drivers
#
CONFIG_MTD_DOCG3=y
CONFIG_BCH_CONST_M=14
CONFIG_BCH_CONST_T=4
# end of Self-contained MTD device drivers

#
# NAND
#
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_ONENAND=y
# CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
CONFIG_MTD_ONENAND_GENERIC=y
# CONFIG_MTD_ONENAND_OTP is not set
CONFIG_MTD_ONENAND_2X_PROGRAM=y
CONFIG_MTD_RAW_NAND=y

#
# Raw/parallel NAND flash controllers
#
# CONFIG_MTD_NAND_DENALI_PCI is not set
# CONFIG_MTD_NAND_CAFE is not set
CONFIG_MTD_NAND_CS553X=y
# CONFIG_MTD_NAND_MXIC is not set
CONFIG_MTD_NAND_GPIO=y
CONFIG_MTD_NAND_PLATFORM=y
CONFIG_MTD_NAND_ARASAN=y

#
# Misc
#
CONFIG_MTD_NAND_NANDSIM=y
# CONFIG_MTD_NAND_RICOH is not set
# CONFIG_MTD_NAND_DISKONCHIP is not set

#
# ECC engine support
#
CONFIG_MTD_NAND_ECC=y
CONFIG_MTD_NAND_ECC_SW_HAMMING=y
# CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC is not set
# CONFIG_MTD_NAND_ECC_SW_BCH is not set
# end of ECC engine support
# end of NAND

#
# LPDDR & LPDDR2 PCM memory drivers
#
# CONFIG_MTD_LPDDR is not set
# end of LPDDR & LPDDR2 PCM memory drivers

CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
CONFIG_MTD_UBI_FASTMAP=y
CONFIG_MTD_UBI_GLUEBI=y
# CONFIG_MTD_HYPERBUS is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
CONFIG_PARPORT_AX88796=y
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y

#
# NVME Support
#
# end of NVME Support

#
# Misc devices
#
CONFIG_AD525X_DPOT=y
CONFIG_AD525X_DPOT_I2C=y
CONFIG_DUMMY_IRQ=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
CONFIG_APDS9802ALS=y
CONFIG_ISL29003=y
CONFIG_ISL29020=y
# CONFIG_SENSORS_TSL2550 is not set
CONFIG_SENSORS_BH1770=y
# CONFIG_SENSORS_APDS990X is not set
CONFIG_HMC6352=y
CONFIG_DS1682=y
# CONFIG_PCH_PHUB is not set
CONFIG_SRAM=y
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_C2PORT is not set

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

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set
CONFIG_ALTERA_STAPL=y
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_VMWARE_VMCI is not set
# CONFIG_ECHO is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_HABANA_AI is not set
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# end of SCSI device support

# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

# CONFIG_MACINTOSH_DRIVERS 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_VIRTIO_NET=m
# CONFIG_NLMON is not set
# CONFIG_MHI_NET is not set
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL3 is not set
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
# CONFIG_AMD_XGBE is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CIRRUS=y
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_GOOGLE=y
CONFIG_NET_VENDOR_HUAWEI=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_I40E is not set
# CONFIG_IGC is not set
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_LAN743X is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_NETRONOME=y
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_PCH_GBE is not set
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_PHYLIB is not set
# CONFIG_MDIO_DEVICE is not set

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

# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP 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_ATH5K_PCI 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_RALINK=y
CONFIG_WLAN_VENDOR_REALTEK=y
CONFIG_WLAN_VENDOR_RSI=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_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=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 is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5520 is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_TWL4030 is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CROS_EC 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_SYNAPTICS_SMBUS=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_PS2_VMMOUSE is not set
CONFIG_MOUSE_PS2_SMBUS=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB 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=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_CT82C710=y
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
# CONFIG_SERIO_ALTERA_PS2 is not set
CONFIG_SERIO_PS2MULT=y
CONFIG_SERIO_ARC_PS2=y
CONFIG_SERIO_GPIO_PS2=y
# CONFIG_USERIO 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 is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LDISC_AUTOLOAD is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
# CONFIG_SERIAL_8250_PNP is not set
CONFIG_SERIAL_8250_16550A_VARIANTS=y
CONFIG_SERIAL_8250_FINTEK=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_DMA is not set
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_8250_RT288X=y
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y

#
# Non-8250 serial port support
#
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_SERIAL_UARTLITE_NR_UARTS=1
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_SERIAL_LANTIQ=y
# CONFIG_SERIAL_LANTIQ_CONSOLE is not set
CONFIG_SERIAL_SCCNXP=y
CONFIG_SERIAL_SCCNXP_CONSOLE=y
CONFIG_SERIAL_SC16IS7XX=y
# CONFIG_SERIAL_SC16IS7XX_I2C is not set
CONFIG_SERIAL_TIMBERDALE=y
CONFIG_SERIAL_BCM63XX=y
CONFIG_SERIAL_BCM63XX_CONSOLE=y
# CONFIG_SERIAL_ALTERA_JTAGUART 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_ARC=y
# CONFIG_SERIAL_ARC_CONSOLE is not set
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
CONFIG_SERIAL_FSL_LPUART=y
CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
CONFIG_SERIAL_SPRD=y
# CONFIG_SERIAL_SPRD_CONSOLE is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_PRINTER=y
CONFIG_LP_CONSOLE=y
# CONFIG_PPDEV is not set
CONFIG_VIRTIO_CONSOLE=y
CONFIG_IPMI_HANDLER=y
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
# CONFIG_IPMI_PANIC_STRING is not set
# CONFIG_IPMI_DEVICE_INTERFACE is not set
CONFIG_IPMI_SI=y
# CONFIG_IPMI_SSIF is not set
CONFIG_IPMI_WATCHDOG=y
CONFIG_IPMI_POWEROFF=y
CONFIG_IPMB_DEVICE_INTERFACE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set
CONFIG_MWAVE=y
CONFIG_SCx200_GPIO=y
# CONFIG_PC8736x_GPIO is not set
CONFIG_NSC_GPIO=y
# CONFIG_DEVMEM is not set
# CONFIG_NVRAM is not set
CONFIG_DEVPORT=y
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
# CONFIG_XILLYBUS is not set
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
CONFIG_I2C_MUX_GPIO=y
CONFIG_I2C_MUX_LTC4306=y
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=y
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_CHT_WC is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
CONFIG_I2C_SCMI=y

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_CBUS_GPIO=y
CONFIG_I2C_DESIGNWARE_CORE=y
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
CONFIG_I2C_EMEV2=y
# CONFIG_I2C_GPIO is not set
CONFIG_I2C_OCORES=y
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT=y
CONFIG_I2C_TAOS_EVM=y

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_CROS_EC_TUNNEL=y
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

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

CONFIG_I3C=y
CONFIG_CDNS_I3C_MASTER=y
# CONFIG_DW_I3C_MASTER is not set
CONFIG_SVC_I3C_MASTER=y
CONFIG_MIPI_I3C_HCI=y
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
# CONFIG_NTP_PPS is not set

#
# PPS clients support
#
CONFIG_PPS_CLIENT_KTIMER=y
# CONFIG_PPS_CLIENT_LDISC is not set
CONFIG_PPS_CLIENT_PARPORT=y
CONFIG_PPS_CLIENT_GPIO=y

#
# 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.
#
# CONFIG_PTP_1588_CLOCK_PCH is not set
CONFIG_PTP_1588_CLOCK_KVM=y
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# CONFIG_PTP_1588_CLOCK_OCP is not set
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
CONFIG_DEBUG_PINCTRL=y
CONFIG_PINCTRL_AMD=y
# CONFIG_PINCTRL_MCP23S08 is not set
CONFIG_PINCTRL_SX150X=y
CONFIG_PINCTRL_BAYTRAIL=y
CONFIG_PINCTRL_CHERRYVIEW=y
# CONFIG_PINCTRL_LYNXPOINT is not set
CONFIG_PINCTRL_INTEL=y
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
CONFIG_PINCTRL_CANNONLAKE=y
CONFIG_PINCTRL_CEDARFORK=y
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
CONFIG_PINCTRL_GEMINILAKE=y
CONFIG_PINCTRL_ICELAKE=y
# CONFIG_PINCTRL_JASPERLAKE is not set
CONFIG_PINCTRL_LAKEFIELD=y
CONFIG_PINCTRL_LEWISBURG=y
CONFIG_PINCTRL_SUNRISEPOINT=y
# CONFIG_PINCTRL_TIGERLAKE is not set

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_PINCTRL_MADERA=y
CONFIG_PINCTRL_CS47L35=y
CONFIG_PINCTRL_CS47L85=y
CONFIG_PINCTRL_CS47L90=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
CONFIG_GPIO_CDEV=y
# CONFIG_GPIO_CDEV_V1 is not set
CONFIG_GPIO_GENERIC=y

#
# Memory mapped GPIO drivers
#
CONFIG_GPIO_AMDPT=y
CONFIG_GPIO_DWAPB=y
# CONFIG_GPIO_EXAR is not set
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
CONFIG_GPIO_AMD_FCH=y
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
CONFIG_GPIO_F7188X=y
# CONFIG_GPIO_IT87 is not set
CONFIG_GPIO_SCH311X=y
CONFIG_GPIO_WINBOND=y
CONFIG_GPIO_WS16C48=y
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
CONFIG_GPIO_TPIC2810=y
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_GPIO_ADP5520 is not set
CONFIG_GPIO_ARIZONA=y
CONFIG_GPIO_CRYSTAL_COVE=y
# CONFIG_GPIO_DA9052 is not set
# CONFIG_GPIO_MADERA is not set
# CONFIG_GPIO_PALMAS is not set
CONFIG_GPIO_RC5T583=y
# CONFIG_GPIO_TPS65086 is not set
CONFIG_GPIO_TPS65912=y
CONFIG_GPIO_TQMX86=y
CONFIG_GPIO_TWL4030=y
# CONFIG_GPIO_TWL6040 is not set
# CONFIG_GPIO_UCB1400 is not set
CONFIG_GPIO_WM831X=y
# 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 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# Virtual GPIO drivers
#
CONFIG_GPIO_AGGREGATOR=y
CONFIG_GPIO_MOCKUP=y
# CONFIG_GPIO_VIRTIO is not set
# end of Virtual GPIO drivers

CONFIG_W1=y

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

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=y
CONFIG_W1_SLAVE_SMEM=y
# CONFIG_W1_SLAVE_DS2405 is not set
CONFIG_W1_SLAVE_DS2408=y
# CONFIG_W1_SLAVE_DS2408_READBACK is not set
# CONFIG_W1_SLAVE_DS2413 is not set
# CONFIG_W1_SLAVE_DS2406 is not set
CONFIG_W1_SLAVE_DS2423=y
CONFIG_W1_SLAVE_DS2805=y
CONFIG_W1_SLAVE_DS2430=y
CONFIG_W1_SLAVE_DS2431=y
# CONFIG_W1_SLAVE_DS2433 is not set
CONFIG_W1_SLAVE_DS2438=y
CONFIG_W1_SLAVE_DS250X=y
CONFIG_W1_SLAVE_DS2780=y
# CONFIG_W1_SLAVE_DS2781 is not set
CONFIG_W1_SLAVE_DS28E04=y
CONFIG_W1_SLAVE_DS28E17=y
# 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=y
CONFIG_PDA_POWER=y
CONFIG_GENERIC_ADC_BATTERY=y
CONFIG_MAX8925_POWER=y
CONFIG_WM831X_BACKUP=y
CONFIG_WM831X_POWER=y
CONFIG_TEST_POWER=y
CONFIG_CHARGER_ADP5061=y
# CONFIG_BATTERY_CW2015 is not set
CONFIG_BATTERY_DS2760=y
CONFIG_BATTERY_DS2780=y
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=y
CONFIG_BATTERY_SBS=y
CONFIG_CHARGER_SBS=y
CONFIG_MANAGER_SBS=y
CONFIG_BATTERY_BQ27XXX=y
CONFIG_BATTERY_BQ27XXX_I2C=y
CONFIG_BATTERY_BQ27XXX_HDQ=y
# CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM is not set
CONFIG_BATTERY_DA9030=y
CONFIG_BATTERY_DA9052=y
CONFIG_BATTERY_DA9150=y
CONFIG_CHARGER_AXP20X=y
CONFIG_BATTERY_AXP20X=y
CONFIG_AXP20X_POWER=y
CONFIG_AXP288_FUEL_GAUGE=y
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_BATTERY_MAX17042=y
CONFIG_BATTERY_MAX1721X=y
CONFIG_BATTERY_TWL4030_MADC=y
CONFIG_BATTERY_RX51=y
# CONFIG_CHARGER_MAX8903 is not set
CONFIG_CHARGER_TWL4030=y
CONFIG_CHARGER_LP8727=y
CONFIG_CHARGER_GPIO=y
CONFIG_CHARGER_MANAGER=y
CONFIG_CHARGER_LT3651=y
CONFIG_CHARGER_LTC4162L=y
CONFIG_CHARGER_MAX77693=y
# CONFIG_CHARGER_MAX8997 is not set
# CONFIG_CHARGER_MT6360 is not set
CONFIG_CHARGER_BQ2415X=y
CONFIG_CHARGER_BQ24190=y
CONFIG_CHARGER_BQ24257=y
CONFIG_CHARGER_BQ24735=y
CONFIG_CHARGER_BQ2515X=y
CONFIG_CHARGER_BQ25890=y
CONFIG_CHARGER_BQ25980=y
CONFIG_CHARGER_BQ256XX=y
CONFIG_CHARGER_SMB347=y
CONFIG_BATTERY_GAUGE_LTC2941=y
CONFIG_BATTERY_GOLDFISH=y
# CONFIG_BATTERY_RT5033 is not set
CONFIG_CHARGER_RT9455=y
CONFIG_CHARGER_CROS_PCHG=y
CONFIG_CHARGER_BD99954=y
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_AD7414=y
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
CONFIG_SENSORS_ADM1025=y
CONFIG_SENSORS_ADM1026=y
CONFIG_SENSORS_ADM1029=y
CONFIG_SENSORS_ADM1031=y
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=y
CONFIG_SENSORS_ADT7X10=y
CONFIG_SENSORS_ADT7410=y
# CONFIG_SENSORS_ADT7411 is not set
CONFIG_SENSORS_ADT7462=y
CONFIG_SENSORS_ADT7470=y
CONFIG_SENSORS_ADT7475=y
CONFIG_SENSORS_AHT10=y
CONFIG_SENSORS_AS370=y
CONFIG_SENSORS_ASC7621=y
CONFIG_SENSORS_AXI_FAN_CONTROL=y
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
CONFIG_SENSORS_ASB100=y
CONFIG_SENSORS_ASPEED=y
CONFIG_SENSORS_ATXP1=y
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DS620 is not set
CONFIG_SENSORS_DS1621=y
CONFIG_SENSORS_DELL_SMM=y
CONFIG_SENSORS_DA9052_ADC=y
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=y
CONFIG_SENSORS_F75375S=y
CONFIG_SENSORS_MC13783_ADC=y
CONFIG_SENSORS_FSCHMD=y
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GL518SM=y
# CONFIG_SENSORS_GL520SM is not set
CONFIG_SENSORS_G760A=y
CONFIG_SENSORS_G762=y
CONFIG_SENSORS_HIH6130=y
CONFIG_SENSORS_IBMAEM=y
CONFIG_SENSORS_IBMPEX=y
CONFIG_SENSORS_IIO_HWMON=y
# CONFIG_SENSORS_I5500 is not set
CONFIG_SENSORS_CORETEMP=y
CONFIG_SENSORS_IT87=y
CONFIG_SENSORS_JC42=y
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=y
# CONFIG_SENSORS_LTC2945 is not set
CONFIG_SENSORS_LTC2947=y
CONFIG_SENSORS_LTC2947_I2C=y
CONFIG_SENSORS_LTC2990=y
CONFIG_SENSORS_LTC2992=y
CONFIG_SENSORS_LTC4151=y
CONFIG_SENSORS_LTC4215=y
CONFIG_SENSORS_LTC4222=y
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=y
CONFIG_SENSORS_MAX127=y
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=y
CONFIG_SENSORS_MAX1668=y
CONFIG_SENSORS_MAX197=y
CONFIG_SENSORS_MAX31730=y
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=y
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
CONFIG_SENSORS_MCP3021=y
CONFIG_SENSORS_MLXREG_FAN=y
CONFIG_SENSORS_TC654=y
CONFIG_SENSORS_TPS23861=y
# CONFIG_SENSORS_MENF21BMC_HWMON is not set
# CONFIG_SENSORS_MR75203 is not set
CONFIG_SENSORS_LM63=y
CONFIG_SENSORS_LM73=y
# CONFIG_SENSORS_LM75 is not set
CONFIG_SENSORS_LM77=y
# CONFIG_SENSORS_LM78 is not set
CONFIG_SENSORS_LM80=y
CONFIG_SENSORS_LM83=y
CONFIG_SENSORS_LM85=y
CONFIG_SENSORS_LM87=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM92=y
# CONFIG_SENSORS_LM93 is not set
CONFIG_SENSORS_LM95234=y
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775=y
CONFIG_SENSORS_NCT7802=y
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
CONFIG_SENSORS_PCF8591=y
# CONFIG_PMBUS is not set
CONFIG_SENSORS_SBTSI=y
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
CONFIG_SENSORS_SHTC1=y
# CONFIG_SENSORS_SIS5595 is not set
CONFIG_SENSORS_DME1737=y
CONFIG_SENSORS_EMC1403=y
CONFIG_SENSORS_EMC2103=y
CONFIG_SENSORS_EMC6W201=y
# CONFIG_SENSORS_SMSC47M1 is not set
CONFIG_SENSORS_SMSC47M192=y
CONFIG_SENSORS_SMSC47B397=y
CONFIG_SENSORS_SCH56XX_COMMON=y
CONFIG_SENSORS_SCH5627=y
CONFIG_SENSORS_SCH5636=y
CONFIG_SENSORS_STTS751=y
CONFIG_SENSORS_SMM665=y
CONFIG_SENSORS_ADC128D818=y
CONFIG_SENSORS_ADS7828=y
CONFIG_SENSORS_AMC6821=y
CONFIG_SENSORS_INA209=y
# CONFIG_SENSORS_INA2XX is not set
CONFIG_SENSORS_INA3221=y
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=y
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
CONFIG_SENSORS_TMP108=y
CONFIG_SENSORS_TMP401=y
CONFIG_SENSORS_TMP421=y
# CONFIG_SENSORS_TMP513 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=y
# CONFIG_SENSORS_VT8231 is not set
CONFIG_SENSORS_W83773G=y
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83791D=y
CONFIG_SENSORS_W83792D=y
CONFIG_SENSORS_W83793=y
CONFIG_SENSORS_W83795=y
CONFIG_SENSORS_W83795_FANCTRL=y
CONFIG_SENSORS_W83L785TS=y
CONFIG_SENSORS_W83L786NG=y
CONFIG_SENSORS_W83627HF=y
CONFIG_SENSORS_W83627EHF=y
# CONFIG_SENSORS_WM831X is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_SENSORS_ATK0110=y
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
CONFIG_THERMAL_STATISTICS=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
# CONFIG_THERMAL_HWMON is not set
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
# CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE is not set
CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
# CONFIG_THERMAL_GOV_USER_SPACE is not set
CONFIG_DEVFREQ_THERMAL=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=y
CONFIG_X86_THERMAL_VECTOR=y
# CONFIG_X86_PKG_TEMP_THERMAL is not set
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

# CONFIG_INTEL_PCH_THERMAL is not set
CONFIG_INTEL_TCC_COOLING=y
# CONFIG_INTEL_MENLOW is not set
# end of Intel thermal drivers

CONFIG_GENERIC_ADC_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
# 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 is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
CONFIG_DA9052_WATCHDOG=y
CONFIG_DA9063_WATCHDOG=y
# CONFIG_MENF21BMC_WATCHDOG is not set
# CONFIG_WDAT_WDT is not set
CONFIG_WM831X_WATCHDOG=y
CONFIG_XILINX_WATCHDOG=y
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_MLX_WDT is not set
# CONFIG_CADENCE_WATCHDOG is not set
CONFIG_DW_WATCHDOG=y
# CONFIG_TWL4030_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_RETU_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
CONFIG_EBC_C384_WDT=y
CONFIG_F71808E_WDT=y
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=y
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=y
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_ITCO_WDT is not set
CONFIG_IT8712F_WDT=y
CONFIG_IT87_WDT=y
# CONFIG_HP_WATCHDOG is not set
CONFIG_SC1200_WDT=y
# CONFIG_SCx200_WDT is not set
CONFIG_PC87413_WDT=y
# CONFIG_NV_TCO is not set
# CONFIG_RDC321X_WDT is not set
CONFIG_60XX_WDT=y
# CONFIG_SBC8360_WDT is not set
CONFIG_SBC7240_WDT=y
CONFIG_CPU5_WDT=y
CONFIG_SMSC_SCH311X_WDT=y
CONFIG_SMSC37B787_WDT=y
CONFIG_TQMX86_WDT=y
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=y
CONFIG_W83877F_WDT=y
CONFIG_W83977F_WDT=y
CONFIG_MACHZ_WDT=y
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_NI903X_WDT is not set
CONFIG_NIC7018_WDT=y
CONFIG_MEN_A21_WDT=y

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
# CONFIG_SSB_DRIVER_PCICORE is not set
# CONFIG_SSB_DRIVER_GPIO is not set
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_SFLASH is not set
# CONFIG_BCMA_DRIVER_GMAC_CMN is not set
CONFIG_BCMA_DRIVER_GPIO=y
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_CS5535 is not set
CONFIG_MFD_AS3711=y
CONFIG_PMIC_ADP5520=y
CONFIG_MFD_AAT2870_CORE=y
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_CROS_EC_DEV=y
CONFIG_MFD_MADERA=y
CONFIG_MFD_MADERA_I2C=y
# CONFIG_MFD_CS47L15 is not set
CONFIG_MFD_CS47L35=y
CONFIG_MFD_CS47L85=y
CONFIG_MFD_CS47L90=y
# CONFIG_MFD_CS47L92 is not set
CONFIG_PMIC_DA903X=y
CONFIG_PMIC_DA9052=y
CONFIG_MFD_DA9052_I2C=y
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
CONFIG_MFD_DA9063=y
CONFIG_MFD_DA9150=y
CONFIG_MFD_MC13XXX=y
CONFIG_MFD_MC13XXX_I2C=y
CONFIG_MFD_MP2629=y
CONFIG_HTC_PASIC3=y
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
CONFIG_INTEL_SOC_PMIC=y
CONFIG_INTEL_SOC_PMIC_CHTWC=y
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
# CONFIG_MFD_INTEL_PMT 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=y
CONFIG_MFD_88PM805=y
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
CONFIG_MFD_MAX77693=y
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
CONFIG_MFD_MAX8925=y
CONFIG_MFD_MAX8997=y
CONFIG_MFD_MAX8998=y
CONFIG_MFD_MT6360=y
# CONFIG_MFD_MT6397 is not set
CONFIG_MFD_MENF21BMC=y
CONFIG_MFD_RETU=y
# CONFIG_MFD_PCF50633 is not set
CONFIG_UCB1400_CORE=y
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
CONFIG_MFD_RT5033=y
CONFIG_MFD_RC5T583=y
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=y
# CONFIG_MFD_SM501_GPIO is not set
CONFIG_MFD_SKY81452=y
CONFIG_MFD_SYSCON=y
CONFIG_MFD_TI_AM335X_TSCADC=y
# CONFIG_MFD_LP3943 is not set
CONFIG_MFD_LP8788=y
CONFIG_MFD_TI_LMU=y
CONFIG_MFD_PALMAS=y
CONFIG_TPS6105X=y
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
CONFIG_MFD_TPS65086=y
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
CONFIG_MFD_TPS65912=y
CONFIG_MFD_TPS65912_I2C=y
CONFIG_MFD_TPS80031=y
CONFIG_TWL4030_CORE=y
CONFIG_MFD_TWL4030_AUDIO=y
CONFIG_TWL6040_CORE=y
# CONFIG_MFD_WL1273_CORE is not set
CONFIG_MFD_LM3533=y
# CONFIG_MFD_TIMBERDALE is not set
CONFIG_MFD_TQMX86=y
# CONFIG_MFD_VX855 is not set
CONFIG_MFD_ARIZONA=y
CONFIG_MFD_ARIZONA_I2C=y
CONFIG_MFD_CS47L24=y
# CONFIG_MFD_WM5102 is not set
# CONFIG_MFD_WM5110 is not set
CONFIG_MFD_WM8997=y
CONFIG_MFD_WM8998=y
# CONFIG_MFD_WM8400 is not set
CONFIG_MFD_WM831X=y
CONFIG_MFD_WM831X_I2C=y
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=y
# CONFIG_REGULATOR_88PG86X is not set
CONFIG_REGULATOR_88PM800=y
CONFIG_REGULATOR_ACT8865=y
# CONFIG_REGULATOR_AD5398 is not set
CONFIG_REGULATOR_AAT2870=y
# CONFIG_REGULATOR_ARIZONA_LDO1 is not set
CONFIG_REGULATOR_ARIZONA_MICSUPP=y
CONFIG_REGULATOR_AS3711=y
# CONFIG_REGULATOR_AXP20X is not set
CONFIG_REGULATOR_DA9052=y
CONFIG_REGULATOR_DA9210=y
# CONFIG_REGULATOR_DA9211 is not set
CONFIG_REGULATOR_FAN53555=y
CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_ISL9305=y
# CONFIG_REGULATOR_ISL6271A is not set
CONFIG_REGULATOR_LM363X=y
# CONFIG_REGULATOR_LP3971 is not set
CONFIG_REGULATOR_LP3972=y
# CONFIG_REGULATOR_LP872X is not set
CONFIG_REGULATOR_LP8755=y
# CONFIG_REGULATOR_LP8788 is not set
CONFIG_REGULATOR_LTC3589=y
CONFIG_REGULATOR_LTC3676=y
# CONFIG_REGULATOR_MAX1586 is not set
CONFIG_REGULATOR_MAX8649=y
CONFIG_REGULATOR_MAX8660=y
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8925 is not set
CONFIG_REGULATOR_MAX8952=y
CONFIG_REGULATOR_MAX8997=y
# CONFIG_REGULATOR_MAX8998 is not set
CONFIG_REGULATOR_MAX77693=y
CONFIG_REGULATOR_MAX77826=y
CONFIG_REGULATOR_MC13XXX_CORE=y
CONFIG_REGULATOR_MC13783=y
CONFIG_REGULATOR_MC13892=y
CONFIG_REGULATOR_MP8859=y
CONFIG_REGULATOR_MT6311=y
CONFIG_REGULATOR_MT6360=y
CONFIG_REGULATOR_PALMAS=y
CONFIG_REGULATOR_PCA9450=y
CONFIG_REGULATOR_PV88060=y
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
CONFIG_REGULATOR_PWM=y
# CONFIG_REGULATOR_RC5T583 is not set
CONFIG_REGULATOR_RT4801=y
CONFIG_REGULATOR_RT5033=y
CONFIG_REGULATOR_RT6160=y
CONFIG_REGULATOR_RT6245=y
# CONFIG_REGULATOR_RTQ2134 is not set
CONFIG_REGULATOR_RTMV20=y
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_SKY81452 is not set
CONFIG_REGULATOR_SLG51000=y
CONFIG_REGULATOR_TPS51632=y
CONFIG_REGULATOR_TPS6105X=y
CONFIG_REGULATOR_TPS62360=y
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
CONFIG_REGULATOR_TPS65086=y
CONFIG_REGULATOR_TPS65132=y
# CONFIG_REGULATOR_TPS65912 is not set
CONFIG_REGULATOR_TPS80031=y
CONFIG_REGULATOR_TWL4030=y
CONFIG_REGULATOR_WM831X=y
# CONFIG_RC_CORE is not set
CONFIG_CEC_CORE=y
# CONFIG_MEDIA_CEC_SUPPORT is not set
CONFIG_MEDIA_SUPPORT=y
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
CONFIG_MEDIA_SDR_SUPPORT=y
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

CONFIG_VIDEO_DEV=y
CONFIG_MEDIA_CONTROLLER=y

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_VIDEO_ADV_DEBUG=y
CONFIG_VIDEO_FIXED_MINOR_RANGES=y
CONFIG_V4L2_FWNODE=y
CONFIG_V4L2_ASYNC=y
# end of Video4Linux options

#
# Media controller options
#
# end of Media controller options

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#
# CONFIG_MEDIA_PCI_SUPPORT is not set
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_V4L2=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_VMALLOC=y
# end of Media drivers

#
# Media ancillary drivers
#

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_TDA7432 is not set
CONFIG_VIDEO_TDA9840=y
# CONFIG_VIDEO_TDA1997X is not set
CONFIG_VIDEO_TEA6415C=y
CONFIG_VIDEO_TEA6420=y
# CONFIG_VIDEO_MSP3400 is not set
# CONFIG_VIDEO_CS3308 is not set
# CONFIG_VIDEO_CS5345 is not set
# CONFIG_VIDEO_CS53L32A is not set
CONFIG_VIDEO_TLV320AIC23B=y
CONFIG_VIDEO_UDA1342=y
CONFIG_VIDEO_WM8775=y
CONFIG_VIDEO_WM8739=y
CONFIG_VIDEO_VP27SMPX=y
CONFIG_VIDEO_SONY_BTF_MPX=y
# end of Audio decoders, processors and mixers

#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set
# end of RDS decoders

#
# Video decoders
#
CONFIG_VIDEO_ADV7180=y
CONFIG_VIDEO_ADV7183=y
CONFIG_VIDEO_ADV7604=y
# CONFIG_VIDEO_ADV7604_CEC is not set
CONFIG_VIDEO_ADV7842=y
CONFIG_VIDEO_ADV7842_CEC=y
CONFIG_VIDEO_BT819=y
CONFIG_VIDEO_BT856=y
CONFIG_VIDEO_BT866=y
CONFIG_VIDEO_KS0127=y
# CONFIG_VIDEO_ML86V7667 is not set
# CONFIG_VIDEO_SAA7110 is not set
CONFIG_VIDEO_SAA711X=y
# CONFIG_VIDEO_TC358743 is not set
# CONFIG_VIDEO_TVP514X is not set
CONFIG_VIDEO_TVP5150=y
# CONFIG_VIDEO_TVP7002 is not set
CONFIG_VIDEO_TW2804=y
# CONFIG_VIDEO_TW9903 is not set
CONFIG_VIDEO_TW9906=y
# CONFIG_VIDEO_TW9910 is not set
# CONFIG_VIDEO_VPX3220 is not set

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
CONFIG_VIDEO_CX25840=y
# end of Video decoders

#
# Video encoders
#
CONFIG_VIDEO_SAA7127=y
# CONFIG_VIDEO_SAA7185 is not set
CONFIG_VIDEO_ADV7170=y
# CONFIG_VIDEO_ADV7175 is not set
CONFIG_VIDEO_ADV7343=y
CONFIG_VIDEO_ADV7393=y
# CONFIG_VIDEO_ADV7511 is not set
CONFIG_VIDEO_AD9389B=y
CONFIG_VIDEO_AK881X=y
# CONFIG_VIDEO_THS8200 is not set
# end of Video encoders

#
# Video improvement chips
#
CONFIG_VIDEO_UPD64031A=y
CONFIG_VIDEO_UPD64083=y
# end of Video improvement chips

#
# Audio/Video compression chips
#
# CONFIG_VIDEO_SAA6752HS is not set
# end of Audio/Video compression chips

#
# SDR tuner chips
#
CONFIG_SDR_MAX2175=y
# end of SDR tuner chips

#
# Miscellaneous helper chips
#
CONFIG_VIDEO_THS7303=y
CONFIG_VIDEO_M52790=y
CONFIG_VIDEO_I2C=y
CONFIG_VIDEO_ST_MIPID02=y
# end of Miscellaneous helper chips

#
# SPI helper chips
#
# end of SPI helper chips

CONFIG_MEDIA_TUNER=y

#
# Customize TV tuners
#
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA18250=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
CONFIG_MEDIA_TUNER_MT20XX=y
# CONFIG_MEDIA_TUNER_MT2060 is not set
# CONFIG_MEDIA_TUNER_MT2063 is not set
CONFIG_MEDIA_TUNER_MT2266=y
CONFIG_MEDIA_TUNER_MT2131=y
CONFIG_MEDIA_TUNER_QT1010=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_XC4000=y
# CONFIG_MEDIA_TUNER_MXL5005S is not set
CONFIG_MEDIA_TUNER_MXL5007T=y
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_MEDIA_TUNER_MAX2165=y
# CONFIG_MEDIA_TUNER_TDA18218 is not set
CONFIG_MEDIA_TUNER_FC0011=y
# CONFIG_MEDIA_TUNER_FC0012 is not set
CONFIG_MEDIA_TUNER_FC0013=y
# CONFIG_MEDIA_TUNER_TDA18212 is not set
CONFIG_MEDIA_TUNER_E4000=y
CONFIG_MEDIA_TUNER_FC2580=y
# CONFIG_MEDIA_TUNER_M88RS6000T is not set
CONFIG_MEDIA_TUNER_TUA9001=y
CONFIG_MEDIA_TUNER_SI2157=y
CONFIG_MEDIA_TUNER_IT913X=y
CONFIG_MEDIA_TUNER_R820T=y
# CONFIG_MEDIA_TUNER_MXL301RF is not set
# CONFIG_MEDIA_TUNER_QM1D1C0042 is not set
# CONFIG_MEDIA_TUNER_QM1D1B0004 is not set
# end of Customize TV tuners
# end of Media ancillary drivers

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
# CONFIG_DRM 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=y
CONFIG_LCD_PLATFORM=y
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y
# end of Graphics support

CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_DMAENGINE_PCM=y
CONFIG_SND_RAWMIDI=y
CONFIG_SND_COMPRESS_OFFLOAD=y
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
# CONFIG_SND_OSSEMUL is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
CONFIG_SND_DEBUG_VERBOSE=y
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_CTL_VALIDATION=y
# CONFIG_SND_JACK_INJECTION_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_SEQUENCER is not set
CONFIG_SND_MPU401_UART=y
CONFIG_SND_AC97_CODEC=y
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
CONFIG_SND_MTPAV=y
CONFIG_SND_MTS64=y
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=y
CONFIG_SND_PORTMAN2X4=y
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SIS7019 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set

#
# HD-Audio
#
# CONFIG_SND_HDA_INTEL is not set
# end of HD-Audio

CONFIG_SND_HDA_PREALLOC_SIZE=0
CONFIG_SND_INTEL_NHLT=y
CONFIG_SND_INTEL_DSP_CONFIG=y
CONFIG_SND_INTEL_SOUNDWIRE_ACPI=y
CONFIG_SND_SOC=y
CONFIG_SND_SOC_AC97_BUS=y
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
CONFIG_SND_SOC_COMPRESS=y
CONFIG_SND_SOC_ACPI=y
CONFIG_SND_SOC_ADI=y
CONFIG_SND_SOC_ADI_AXI_I2S=y
CONFIG_SND_SOC_ADI_AXI_SPDIF=y
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_SOC_AMD_ACP3x is not set
# CONFIG_SND_SOC_AMD_RENOIR is not set
# CONFIG_SND_SOC_AMD_ACP5x is not set
CONFIG_SND_ATMEL_SOC=y
CONFIG_SND_BCM63XX_I2S_WHISTLER=y
# CONFIG_SND_DESIGNWARE_I2S is not set

#
# SoC Audio for Freescale CPUs
#

#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
CONFIG_SND_SOC_FSL_SAI=y
CONFIG_SND_SOC_FSL_MQS=y
CONFIG_SND_SOC_FSL_AUDMIX=y
CONFIG_SND_SOC_FSL_SSI=y
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_FSL_MICFIL is not set
CONFIG_SND_SOC_FSL_XCVR=y
CONFIG_SND_SOC_IMX_AUDMUX=y
# end of SoC Audio for Freescale CPUs

# CONFIG_SND_I2S_HI6210_I2S is not set
# CONFIG_SND_SOC_IMG is not set
CONFIG_SND_SOC_INTEL_SST_TOPLEVEL=y
# CONFIG_SND_SOC_INTEL_CATPT is not set
CONFIG_SND_SST_ATOM_HIFI2_PLATFORM=y
# CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_PCI is not set
CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI=y
# CONFIG_SND_SOC_INTEL_SKYLAKE is not set
# CONFIG_SND_SOC_INTEL_SKL is not set
# CONFIG_SND_SOC_INTEL_APL is not set
# CONFIG_SND_SOC_INTEL_KBL is not set
# CONFIG_SND_SOC_INTEL_GLK is not set
# CONFIG_SND_SOC_INTEL_CNL is not set
# CONFIG_SND_SOC_INTEL_CFL is not set
# CONFIG_SND_SOC_INTEL_CML_H is not set
# CONFIG_SND_SOC_INTEL_CML_LP is not set
CONFIG_SND_SOC_ACPI_INTEL_MATCH=y
CONFIG_SND_SOC_INTEL_MACH=y
# CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES is not set
CONFIG_SND_SOC_MTK_BTCVSD=y
# CONFIG_SND_SOC_SOF_TOPLEVEL is not set

#
# STMicroelectronics STM32 SOC audio support
#
# end of STMicroelectronics STM32 SOC audio support

CONFIG_SND_SOC_XILINX_I2S=y
CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER=y
CONFIG_SND_SOC_XILINX_SPDIF=y
CONFIG_SND_SOC_XTFPGA_I2S=y
CONFIG_SND_SOC_I2C_AND_SPI=y

#
# CODEC drivers
#
CONFIG_SND_SOC_AC97_CODEC=y
CONFIG_SND_SOC_ADAU_UTILS=y
# CONFIG_SND_SOC_ADAU1372_I2C is not set
CONFIG_SND_SOC_ADAU1701=y
CONFIG_SND_SOC_ADAU17X1=y
CONFIG_SND_SOC_ADAU1761=y
CONFIG_SND_SOC_ADAU1761_I2C=y
CONFIG_SND_SOC_ADAU7002=y
CONFIG_SND_SOC_ADAU7118=y
CONFIG_SND_SOC_ADAU7118_HW=y
CONFIG_SND_SOC_ADAU7118_I2C=y
CONFIG_SND_SOC_AK4118=y
# CONFIG_SND_SOC_AK4458 is not set
CONFIG_SND_SOC_AK4554=y
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_AK5558 is not set
CONFIG_SND_SOC_ALC5623=y
CONFIG_SND_SOC_BD28623=y
# CONFIG_SND_SOC_BT_SCO is not set
# CONFIG_SND_SOC_CROS_EC_CODEC is not set
CONFIG_SND_SOC_CS35L32=y
CONFIG_SND_SOC_CS35L33=y
CONFIG_SND_SOC_CS35L34=y
CONFIG_SND_SOC_CS35L35=y
# CONFIG_SND_SOC_CS35L36 is not set
CONFIG_SND_SOC_CS42L42=y
CONFIG_SND_SOC_CS42L51=y
CONFIG_SND_SOC_CS42L51_I2C=y
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
CONFIG_SND_SOC_CS42L73=y
CONFIG_SND_SOC_CS4234=y
CONFIG_SND_SOC_CS4265=y
CONFIG_SND_SOC_CS4270=y
CONFIG_SND_SOC_CS4271=y
CONFIG_SND_SOC_CS4271_I2C=y
CONFIG_SND_SOC_CS42XX8=y
CONFIG_SND_SOC_CS42XX8_I2C=y
CONFIG_SND_SOC_CS43130=y
# CONFIG_SND_SOC_CS4341 is not set
CONFIG_SND_SOC_CS4349=y
CONFIG_SND_SOC_CS53L30=y
CONFIG_SND_SOC_CX2072X=y
CONFIG_SND_SOC_DA7213=y
CONFIG_SND_SOC_DMIC=y
CONFIG_SND_SOC_ES7134=y
CONFIG_SND_SOC_ES7241=y
CONFIG_SND_SOC_ES8316=y
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_ICS43432 is not set
CONFIG_SND_SOC_INNO_RK3036=y
CONFIG_SND_SOC_MAX98088=y
CONFIG_SND_SOC_MAX98357A=y
CONFIG_SND_SOC_MAX98504=y
# CONFIG_SND_SOC_MAX9867 is not set
CONFIG_SND_SOC_MAX98927=y
CONFIG_SND_SOC_MAX98373=y
CONFIG_SND_SOC_MAX98373_I2C=y
# CONFIG_SND_SOC_MAX98373_SDW is not set
CONFIG_SND_SOC_MAX98390=y
CONFIG_SND_SOC_MAX9860=y
CONFIG_SND_SOC_MSM8916_WCD_DIGITAL=y
CONFIG_SND_SOC_PCM1681=y
CONFIG_SND_SOC_PCM1789=y
CONFIG_SND_SOC_PCM1789_I2C=y
CONFIG_SND_SOC_PCM179X=y
CONFIG_SND_SOC_PCM179X_I2C=y
# CONFIG_SND_SOC_PCM186X_I2C is not set
CONFIG_SND_SOC_PCM3060=y
CONFIG_SND_SOC_PCM3060_I2C=y
CONFIG_SND_SOC_PCM3168A=y
CONFIG_SND_SOC_PCM3168A_I2C=y
# CONFIG_SND_SOC_PCM5102A is not set
CONFIG_SND_SOC_PCM512x=y
CONFIG_SND_SOC_PCM512x_I2C=y
CONFIG_SND_SOC_RK3328=y
CONFIG_SND_SOC_RL6231=y
# CONFIG_SND_SOC_RT1308_SDW is not set
# CONFIG_SND_SOC_RT1316_SDW is not set
# CONFIG_SND_SOC_RT5616 is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5640 is not set
CONFIG_SND_SOC_RT5659=y
# CONFIG_SND_SOC_RT5682_SDW is not set
CONFIG_SND_SOC_RT700=y
CONFIG_SND_SOC_RT700_SDW=y
# CONFIG_SND_SOC_RT711_SDW is not set
CONFIG_SND_SOC_RT711_SDCA_SDW=y
# CONFIG_SND_SOC_RT715_SDW is not set
CONFIG_SND_SOC_RT715_SDCA_SDW=y
# CONFIG_SND_SOC_SDW_MOCKUP is not set
CONFIG_SND_SOC_SGTL5000=y
CONFIG_SND_SOC_SIGMADSP=y
CONFIG_SND_SOC_SIGMADSP_I2C=y
CONFIG_SND_SOC_SIGMADSP_REGMAP=y
CONFIG_SND_SOC_SIMPLE_AMPLIFIER=y
CONFIG_SND_SOC_SIMPLE_MUX=y
# CONFIG_SND_SOC_SPDIF is not set
CONFIG_SND_SOC_SSM2305=y
# CONFIG_SND_SOC_SSM2518 is not set
CONFIG_SND_SOC_SSM2602=y
CONFIG_SND_SOC_SSM2602_I2C=y
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
CONFIG_SND_SOC_STA350=y
CONFIG_SND_SOC_STI_SAS=y
# CONFIG_SND_SOC_TAS2552 is not set
CONFIG_SND_SOC_TAS2562=y
# CONFIG_SND_SOC_TAS2764 is not set
CONFIG_SND_SOC_TAS2770=y
CONFIG_SND_SOC_TAS5086=y
CONFIG_SND_SOC_TAS571X=y
CONFIG_SND_SOC_TAS5720=y
# CONFIG_SND_SOC_TAS6424 is not set
CONFIG_SND_SOC_TDA7419=y
CONFIG_SND_SOC_TFA9879=y
# CONFIG_SND_SOC_TFA989X is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
CONFIG_SND_SOC_TLV320AIC31XX=y
CONFIG_SND_SOC_TLV320AIC32X4=y
CONFIG_SND_SOC_TLV320AIC32X4_I2C=y
CONFIG_SND_SOC_TLV320AIC3X=y
CONFIG_SND_SOC_TLV320AIC3X_I2C=y
CONFIG_SND_SOC_TLV320ADCX140=y
# CONFIG_SND_SOC_TS3A227E is not set
CONFIG_SND_SOC_TSCS42XX=y
# CONFIG_SND_SOC_TSCS454 is not set
CONFIG_SND_SOC_UDA1334=y
# CONFIG_SND_SOC_WCD938X_SDW is not set
# CONFIG_SND_SOC_WM8510 is not set
CONFIG_SND_SOC_WM8523=y
# CONFIG_SND_SOC_WM8524 is not set
CONFIG_SND_SOC_WM8580=y
# CONFIG_SND_SOC_WM8711 is not set
CONFIG_SND_SOC_WM8728=y
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
CONFIG_SND_SOC_WM8750=y
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8776 is not set
CONFIG_SND_SOC_WM8782=y
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8903 is not set
CONFIG_SND_SOC_WM8904=y
CONFIG_SND_SOC_WM8960=y
# CONFIG_SND_SOC_WM8962 is not set
CONFIG_SND_SOC_WM8974=y
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_WM8985 is not set
CONFIG_SND_SOC_WSA881X=y
# CONFIG_SND_SOC_MAX9759 is not set
# CONFIG_SND_SOC_MT6351 is not set
CONFIG_SND_SOC_MT6358=y
CONFIG_SND_SOC_MT6660=y
CONFIG_SND_SOC_NAU8315=y
CONFIG_SND_SOC_NAU8540=y
CONFIG_SND_SOC_NAU8810=y
CONFIG_SND_SOC_NAU8822=y
CONFIG_SND_SOC_NAU8824=y
CONFIG_SND_SOC_TPA6130A2=y
CONFIG_SND_SOC_LPASS_WSA_MACRO=y
# CONFIG_SND_SOC_LPASS_VA_MACRO is not set
# CONFIG_SND_SOC_LPASS_RX_MACRO is not set
CONFIG_SND_SOC_LPASS_TX_MACRO=y
# end of CODEC drivers

CONFIG_SND_SIMPLE_CARD_UTILS=y
CONFIG_SND_SIMPLE_CARD=y
CONFIG_SND_X86=y
CONFIG_SND_VIRTIO=y
CONFIG_AC97_BUS=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 is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_EZKEY is not set
# 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_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LED is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# 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_PLAYSTATION is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG 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_THINGM is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set
# end of Special HID drivers

#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set
# end of I2C HID support
# end of HID support

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

#
# USB port drivers
#

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_TAHVO_USB is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
# CONFIG_TYPEC is not set
# CONFIG_USB_ROLE_SWITCH is not set
# CONFIG_MMC is not set
CONFIG_MEMSTICK=y
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
CONFIG_LEDS_CLASS_MULTICOLOR=y
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
CONFIG_LEDS_LM3530=y
CONFIG_LEDS_LM3532=y
CONFIG_LEDS_LM3533=y
CONFIG_LEDS_LM3642=y
CONFIG_LEDS_NET48XX=y
# CONFIG_LEDS_WRAP is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=y
# CONFIG_LEDS_LP3952 is not set
CONFIG_LEDS_LP50XX=y
CONFIG_LEDS_LP8788=y
CONFIG_LEDS_PCA955X=y
# CONFIG_LEDS_PCA955X_GPIO is not set
CONFIG_LEDS_PCA963X=y
CONFIG_LEDS_WM831X_STATUS=y
CONFIG_LEDS_DA903X=y
# CONFIG_LEDS_DA9052 is not set
CONFIG_LEDS_PWM=y
CONFIG_LEDS_REGULATOR=y
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_LT3593 is not set
CONFIG_LEDS_ADP5520=y
CONFIG_LEDS_MC13783=y
CONFIG_LEDS_TCA6507=y
CONFIG_LEDS_TLC591XX=y
CONFIG_LEDS_MAX8997=y
CONFIG_LEDS_LM355x=y
CONFIG_LEDS_OT200=y
CONFIG_LEDS_MENF21BMC=y

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=y
CONFIG_LEDS_MLXREG=y
CONFIG_LEDS_USER=y
# CONFIG_LEDS_NIC78BX is not set
CONFIG_LEDS_TI_LMU_COMMON=y
# CONFIG_LEDS_LM36274 is not set
CONFIG_LEDS_TPS6105X=y

#
# Flash and Torch LED drivers
#

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

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_LEDS_TRIGGER_CAMERA=y
CONFIG_LEDS_TRIGGER_PANIC=y
# CONFIG_LEDS_TRIGGER_NETDEV is not set
CONFIG_LEDS_TRIGGER_PATTERN=y
CONFIG_LEDS_TRIGGER_AUDIO=y
CONFIG_LEDS_TRIGGER_TTY=y
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
# CONFIG_RTC_LIB_KUNIT_TEST is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
CONFIG_RTC_DRV_TEST=y

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_88PM80X=y
# CONFIG_RTC_DRV_ABB5ZES3 is not set
CONFIG_RTC_DRV_ABEOZ9=y
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1307_CENTURY=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS1374_WDT=y
CONFIG_RTC_DRV_DS1672=y
CONFIG_RTC_DRV_LP8788=y
CONFIG_RTC_DRV_MAX6900=y
CONFIG_RTC_DRV_MAX8925=y
# CONFIG_RTC_DRV_MAX8998 is not set
CONFIG_RTC_DRV_MAX8997=y
# CONFIG_RTC_DRV_RS5C372 is not set
CONFIG_RTC_DRV_ISL1208=y
CONFIG_RTC_DRV_ISL12022=y
# CONFIG_RTC_DRV_X1205 is not set
CONFIG_RTC_DRV_PCF8523=y
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=y
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
CONFIG_RTC_DRV_BQ32K=y
# CONFIG_RTC_DRV_PALMAS is not set
CONFIG_RTC_DRV_TPS80031=y
CONFIG_RTC_DRV_RC5T583=y
CONFIG_RTC_DRV_S35390A=y
# CONFIG_RTC_DRV_FM3130 is not set
CONFIG_RTC_DRV_RX8010=y
# CONFIG_RTC_DRV_RX8581 is not set
CONFIG_RTC_DRV_RX8025=y
CONFIG_RTC_DRV_EM3027=y
CONFIG_RTC_DRV_RV3028=y
# CONFIG_RTC_DRV_RV3032 is not set
CONFIG_RTC_DRV_RV8803=y
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=y
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=y
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
CONFIG_RTC_DRV_DS1286=y
CONFIG_RTC_DRV_DS1511=y
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=y
CONFIG_RTC_DRV_DS2404=y
CONFIG_RTC_DRV_DA9052=y
CONFIG_RTC_DRV_DA9063=y
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=y
CONFIG_RTC_DRV_M48T59=y
CONFIG_RTC_DRV_MSM6242=y
CONFIG_RTC_DRV_BQ4802=y
CONFIG_RTC_DRV_RP5C01=y
# CONFIG_RTC_DRV_V3020 is not set
CONFIG_RTC_DRV_WM831X=y
# CONFIG_RTC_DRV_CROS_EC is not set

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_MC13XXX is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
CONFIG_DMADEVICES_DEBUG=y
# CONFIG_DMADEVICES_VDEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
CONFIG_ALTERA_MSGDMA=y
CONFIG_INTEL_IDMA64=y
# CONFIG_PCH_DMA is not set
# CONFIG_PLX_DMA is not set
CONFIG_QCOM_HIDMA_MGMT=y
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=y
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
CONFIG_DMATEST=y
CONFIG_DMA_ENGINE_RAID=y

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

CONFIG_AUXDISPLAY=y
CONFIG_CHARLCD=y
CONFIG_HD44780_COMMON=y
CONFIG_HD44780=y
CONFIG_IMG_ASCII_LCD=y
CONFIG_LCD2S=y
CONFIG_PARPORT_PANEL=y
CONFIG_PANEL_PARPORT=0
CONFIG_PANEL_PROFILE=5
# 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_PANEL=y
# CONFIG_UIO is not set
CONFIG_VFIO=y
CONFIG_VFIO_IOMMU_TYPE1=y
# CONFIG_VFIO_NOIOMMU is not set
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
# CONFIG_VFIO_PCI is not set
CONFIG_VFIO_MDEV=y
CONFIG_VIRT_DRIVERS=y
# CONFIG_VBOXGUEST is not set
# CONFIG_NITRO_ENCLAVES is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_MENU=y
# CONFIG_VIRTIO_PCI is not set
CONFIG_VIRTIO_BALLOON=y
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
# CONFIG_VDPA is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_NET is not set
CONFIG_VHOST_CROSS_ENDIAN_LEGACY=y

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support

CONFIG_GREYBUS=y
CONFIG_COMEDI=y
CONFIG_COMEDI_DEBUG=y
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
CONFIG_COMEDI_MISC_DRIVERS=y
# CONFIG_COMEDI_BOND is not set
# CONFIG_COMEDI_TEST is not set
# CONFIG_COMEDI_PARPORT is not set
# CONFIG_COMEDI_SSV_DNP is not set
CONFIG_COMEDI_ISA_DRIVERS=y
CONFIG_COMEDI_PCL711=y
CONFIG_COMEDI_PCL724=y
# CONFIG_COMEDI_PCL726 is not set
# CONFIG_COMEDI_PCL730 is not set
CONFIG_COMEDI_PCL812=y
# CONFIG_COMEDI_PCL816 is not set
CONFIG_COMEDI_PCL818=y
CONFIG_COMEDI_PCM3724=y
CONFIG_COMEDI_AMPLC_DIO200_ISA=y
CONFIG_COMEDI_AMPLC_PC236_ISA=y
CONFIG_COMEDI_AMPLC_PC263_ISA=y
CONFIG_COMEDI_RTI800=y
# CONFIG_COMEDI_RTI802 is not set
CONFIG_COMEDI_DAC02=y
CONFIG_COMEDI_DAS16M1=y
CONFIG_COMEDI_DAS08_ISA=y
# CONFIG_COMEDI_DAS16 is not set
CONFIG_COMEDI_DAS800=y
# CONFIG_COMEDI_DAS1800 is not set
CONFIG_COMEDI_DAS6402=y
CONFIG_COMEDI_DT2801=y
# CONFIG_COMEDI_DT2811 is not set
CONFIG_COMEDI_DT2814=y
# CONFIG_COMEDI_DT2815 is not set
CONFIG_COMEDI_DT2817=y
CONFIG_COMEDI_DT282X=y
# CONFIG_COMEDI_DMM32AT is not set
# CONFIG_COMEDI_FL512 is not set
CONFIG_COMEDI_AIO_AIO12_8=y
# CONFIG_COMEDI_AIO_IIRO_16 is not set
CONFIG_COMEDI_II_PCI20KC=y
CONFIG_COMEDI_C6XDIGIO=y
# CONFIG_COMEDI_MPC624 is not set
CONFIG_COMEDI_ADQ12B=y
CONFIG_COMEDI_NI_AT_A2150=y
CONFIG_COMEDI_NI_AT_AO=y
# CONFIG_COMEDI_NI_ATMIO is not set
CONFIG_COMEDI_NI_ATMIO16D=y
# CONFIG_COMEDI_NI_LABPC_ISA is not set
# CONFIG_COMEDI_PCMAD is not set
CONFIG_COMEDI_PCMDA12=y
CONFIG_COMEDI_PCMMIO=y
CONFIG_COMEDI_PCMUIO=y
# CONFIG_COMEDI_MULTIQ3 is not set
# CONFIG_COMEDI_S526 is not set
# CONFIG_COMEDI_PCI_DRIVERS is not set
CONFIG_COMEDI_8254=y
CONFIG_COMEDI_8255=y
CONFIG_COMEDI_8255_SA=y
# CONFIG_COMEDI_KCOMEDILIB is not set
CONFIG_COMEDI_AMPLC_DIO200=y
CONFIG_COMEDI_AMPLC_PC236=y
CONFIG_COMEDI_DAS08=y
CONFIG_COMEDI_ISADMA=y
# CONFIG_COMEDI_TESTS is not set
# CONFIG_STAGING is not set
# CONFIG_X86_PLATFORM_DEVICES is not set
CONFIG_PMC_ATOM=y
CONFIG_CHROME_PLATFORMS=y
CONFIG_CHROMEOS_PSTORE=y
# CONFIG_CHROMEOS_TBMC is not set
CONFIG_CROS_EC=y
CONFIG_CROS_EC_I2C=y
# CONFIG_CROS_EC_LPC is not set
CONFIG_CROS_EC_PROTO=y
CONFIG_CROS_KBD_LED_BACKLIGHT=y
# CONFIG_CROS_EC_CHARDEV is not set
# CONFIG_CROS_EC_LIGHTBAR is not set
CONFIG_CROS_EC_DEBUGFS=y
CONFIG_CROS_EC_SENSORHUB=y
CONFIG_CROS_EC_SYSFS=y
# CONFIG_CROS_USBPD_NOTIFY is not set
CONFIG_MELLANOX_PLATFORM=y
# CONFIG_MLXREG_HOTPLUG is not set
CONFIG_MLXREG_IO=y
CONFIG_SURFACE_PLATFORMS=y
CONFIG_SURFACE_3_POWER_OPREGION=y
CONFIG_SURFACE_HOTPLUG=y
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
CONFIG_COMMON_CLK_WM831X=y

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

CONFIG_COMMON_CLK_MAX9485=y
CONFIG_COMMON_CLK_SI5341=y
CONFIG_COMMON_CLK_SI5351=y
CONFIG_COMMON_CLK_SI544=y
CONFIG_COMMON_CLK_CDCE706=y
CONFIG_COMMON_CLK_CS2000_CP=y
CONFIG_CLK_TWL6040=y
CONFIG_COMMON_CLK_PALMAS=y
CONFIG_COMMON_CLK_PWM=y
CONFIG_XILINX_VCU=y
CONFIG_HWSPINLOCK=y

#
# Clock Source drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
# 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=y

#
# SoundWire Devices
#
CONFIG_SOUNDWIRE_CADENCE=y
CONFIG_SOUNDWIRE_INTEL=y
CONFIG_SOUNDWIRE_QCOM=y
CONFIG_SOUNDWIRE_GENERIC_ALLOCATION=y

#
# 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

#
# 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=y

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

#
# DEVFREQ Drivers
#
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_AXP288 is not set
# CONFIG_EXTCON_FSA9480 is not set
CONFIG_EXTCON_GPIO=y
CONFIG_EXTCON_INTEL_INT3496=y
CONFIG_EXTCON_INTEL_CHT_WC=y
CONFIG_EXTCON_MAX3355=y
# CONFIG_EXTCON_MAX77693 is not set
CONFIG_EXTCON_MAX8997=y
CONFIG_EXTCON_PALMAS=y
# CONFIG_EXTCON_PTN5150 is not set
# CONFIG_EXTCON_RT8973A is not set
CONFIG_EXTCON_SM5502=y
CONFIG_EXTCON_USB_GPIO=y
# CONFIG_EXTCON_USBC_CROS_EC is not set
CONFIG_EXTCON_USBC_TUSB320=y
# CONFIG_MEMORY is not set
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=y
CONFIG_IIO_BUFFER_DMA=y
CONFIG_IIO_BUFFER_DMAENGINE=y
# CONFIG_IIO_BUFFER_HW_CONSUMER is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
# CONFIG_IIO_CONFIGFS is not set
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=y

#
# Accelerometers
#
CONFIG_ADXL345=y
CONFIG_ADXL345_I2C=y
# CONFIG_ADXL372_I2C is not set
CONFIG_BMA180=y
# CONFIG_BMA400 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_DA280 is not set
# CONFIG_DA311 is not set
CONFIG_DMARD09=y
CONFIG_DMARD10=y
# CONFIG_FXLS8962AF_I2C is not set
CONFIG_IIO_ST_ACCEL_3AXIS=y
CONFIG_IIO_ST_ACCEL_I2C_3AXIS=y
CONFIG_KXSD9=y
CONFIG_KXSD9_I2C=y
# CONFIG_KXCJK1013 is not set
CONFIG_MC3230=y
CONFIG_MMA7455=y
CONFIG_MMA7455_I2C=y
CONFIG_MMA7660=y
CONFIG_MMA8452=y
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MXC4005 is not set
CONFIG_MXC6255=y
CONFIG_STK8312=y
# CONFIG_STK8BA50 is not set
# end of Accelerometers

#
# Analog to digital converters
#
CONFIG_AD7091R5=y
CONFIG_AD7291=y
# CONFIG_AD7606_IFACE_PARALLEL is not set
CONFIG_AD799X=y
CONFIG_AXP20X_ADC=y
CONFIG_AXP288_ADC=y
# CONFIG_CC10001_ADC is not set
# CONFIG_DA9150_GPADC is not set
# CONFIG_HX711 is not set
CONFIG_INA2XX_ADC=y
# CONFIG_LP8788_ADC is not set
# CONFIG_LTC2471 is not set
CONFIG_LTC2485=y
CONFIG_LTC2497=y
# CONFIG_MAX1363 is not set
# CONFIG_MAX9611 is not set
CONFIG_MCP3422=y
# CONFIG_MEDIATEK_MT6360_ADC is not set
# CONFIG_MP2629_ADC is not set
CONFIG_NAU7802=y
CONFIG_PALMAS_GPADC=y
CONFIG_TI_ADC081C=y
CONFIG_TI_ADS1015=y
CONFIG_TI_AM335X_ADC=y
CONFIG_TWL4030_MADC=y
# CONFIG_TWL6030_GPADC is not set
CONFIG_XILINX_XADC=y
# end of Analog to digital converters

#
# Analog Front Ends
#
# end of Analog Front Ends

#
# Amplifiers
#
# CONFIG_HMC425 is not set
# end of Amplifiers

#
# Capacitance to digital converters
#
CONFIG_AD7150=y
# end of Capacitance to digital converters

#
# Chemical Sensors
#
CONFIG_ATLAS_PH_SENSOR=y
CONFIG_ATLAS_EZO_SENSOR=y
# CONFIG_BME680 is not set
CONFIG_CCS811=y
# CONFIG_IAQCORE is not set
CONFIG_SCD30_CORE=y
CONFIG_SCD30_I2C=y
CONFIG_SENSIRION_SGP30=y
# CONFIG_SENSIRION_SGP40 is not set
# CONFIG_SPS30_I2C is not set
# CONFIG_VZ89X is not set
# end of Chemical Sensors

# CONFIG_IIO_CROS_EC_SENSORS_CORE is not set

#
# Hid Sensor IIO Common
#
# end of Hid Sensor IIO Common

CONFIG_IIO_MS_SENSORS_I2C=y

#
# IIO SCMI Sensors
#
# end of IIO SCMI Sensors

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

CONFIG_IIO_ST_SENSORS_I2C=y
CONFIG_IIO_ST_SENSORS_CORE=y

#
# Digital to analog converters
#
CONFIG_AD5064=y
CONFIG_AD5380=y
CONFIG_AD5446=y
CONFIG_AD5592R_BASE=y
CONFIG_AD5593R=y
CONFIG_AD5686=y
CONFIG_AD5696_I2C=y
CONFIG_DS4424=y
CONFIG_M62332=y
# CONFIG_MAX517 is not set
CONFIG_MCP4725=y
CONFIG_TI_DAC5571=y
# end of Digital to analog converters

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

#
# 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=y
CONFIG_FXAS21002C_I2C=y
CONFIG_MPU3050=y
CONFIG_MPU3050_I2C=y
CONFIG_IIO_ST_GYRO_3AXIS=y
CONFIG_IIO_ST_GYRO_I2C_3AXIS=y
CONFIG_ITG3200=y
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
# CONFIG_AFE4404 is not set
# CONFIG_MAX30100 is not set
CONFIG_MAX30102=y
# end of Heart Rate Monitors
# end of Health Sensors

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

#
# Inertial measurement units
#
CONFIG_BMI160=y
CONFIG_BMI160_I2C=y
CONFIG_FXOS8700=y
CONFIG_FXOS8700_I2C=y
CONFIG_KMX61=y
# CONFIG_INV_ICM42600_I2C is not set
# CONFIG_INV_MPU6050_I2C is not set
# CONFIG_IIO_ST_LSM6DSX is not set
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

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

#
# Magnetometer sensors
#
CONFIG_AK8975=y
CONFIG_AK09911=y
# CONFIG_BMC150_MAGN_I2C is not set
CONFIG_MAG3110=y
CONFIG_MMC35240=y
CONFIG_IIO_ST_MAGN_3AXIS=y
CONFIG_IIO_ST_MAGN_I2C_3AXIS=y
# CONFIG_SENSORS_HMC5843_I2C is not set
CONFIG_SENSORS_RM3100=y
CONFIG_SENSORS_RM3100_I2C=y
CONFIG_YAMAHA_YAS530=y
# end of Magnetometer sensors

#
# Multiplexers
#
# end of Multiplexers

#
# Inclinometer sensors
#
# end of Inclinometer sensors

CONFIG_IIO_TEST_FORMAT=y

#
# Triggers - standalone
#
CONFIG_IIO_INTERRUPT_TRIGGER=y
CONFIG_IIO_SYSFS_TRIGGER=y
# end of Triggers - standalone

#
# Linear and angular position sensors
#
# end of Linear and angular position sensors

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

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

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

#
# Lightning sensors
#
# end of Lightning sensors

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

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

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

# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_DEBUG=y
# CONFIG_PWM_CRC is not set
# CONFIG_PWM_CROS_EC is not set
# CONFIG_PWM_DWC is not set
# CONFIG_PWM_LPSS_PCI is not set
# CONFIG_PWM_LPSS_PLATFORM is not set
# CONFIG_PWM_PCA9685 is not set
CONFIG_PWM_TWL=y
CONFIG_PWM_TWL_LED=y

#
# IRQ chip support
#
CONFIG_MADERA_IRQ=y
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
CONFIG_RESET_TI_SYSCON=y

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=y
# CONFIG_PHY_CPCAP_USB is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
# CONFIG_INTEL_RAPL is not set
# CONFIG_IDLE_INJECT is not set
CONFIG_DTPM=y
# CONFIG_MCB is not set

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

CONFIG_RAS=y
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID is not set
# end of Android

CONFIG_DAX=y
CONFIG_NVMEM=y
# CONFIG_NVMEM_SYSFS is not set
# CONFIG_NVMEM_NINTENDO_OTP is not set
CONFIG_NVMEM_RMEM=y

#
# HW tracing support
#
CONFIG_STM=y
CONFIG_STM_PROTO_BASIC=y
CONFIG_STM_PROTO_SYS_T=y
CONFIG_STM_DUMMY=y
CONFIG_STM_SOURCE_CONSOLE=y
CONFIG_STM_SOURCE_HEARTBEAT=y
CONFIG_STM_SOURCE_FTRACE=y
CONFIG_INTEL_TH=y
# CONFIG_INTEL_TH_PCI is not set
CONFIG_INTEL_TH_ACPI=y
# CONFIG_INTEL_TH_GTH is not set
CONFIG_INTEL_TH_STH=y
CONFIG_INTEL_TH_MSU=y
CONFIG_INTEL_TH_PTI=y
CONFIG_INTEL_TH_DEBUG=y
# end of HW tracing support

# CONFIG_FPGA is not set
CONFIG_TEE=y

#
# TEE drivers
#
# end of TEE drivers

CONFIG_PM_OPP=y
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
CONFIG_COUNTER=y
# CONFIG_INTERRUPT_CNT is not set
# CONFIG_INTEL_QEP is not set
CONFIG_MOST=y
CONFIG_MOST_CDEV=y
CONFIG_MOST_SND=y
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_VERITY=y
# CONFIG_FS_VERITY_DEBUG is not set
# CONFIG_FS_VERITY_BUILTIN_SIGNATURES 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=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_VIRTIO_FS=y
# CONFIG_OVERLAY_FS is not set

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

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
# CONFIG_PROC_PAGE_MONITOR is not set
# CONFIG_PROC_CHILDREN is not set
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_PROC_CPU_RESCTRL=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLBFS is not set
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# 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=m
# CONFIG_NFS_V4_1 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
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_GSS=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=y
# CONFIG_NLS_CODEPAGE_850 is not set
CONFIG_NLS_CODEPAGE_852=y
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
# 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=y
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=y
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=y
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
# CONFIG_NLS_ISO8859_5 is not set
CONFIG_NLS_ISO8859_6=y
# CONFIG_NLS_ISO8859_7 is not set
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=y
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_MAC_ROMAN=y
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
CONFIG_NLS_MAC_CROATIAN=y
# CONFIG_NLS_MAC_CYRILLIC is not set
CONFIG_NLS_MAC_GAELIC=y
CONFIG_NLS_MAC_GREEK=y
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=y
CONFIG_NLS_MAC_ROMANIAN=y
CONFIG_NLS_MAC_TURKISH=y
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set
# CONFIG_UNICODE is not set
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
CONFIG_ENCRYPTED_KEYS=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_KEY_NOTIFICATIONS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
CONFIG_FORTIFY_SOURCE=y
CONFIG_STATIC_USERMODEHELPER=y
CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
# CONFIG_IMA is not set
# CONFIG_EVM 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=y
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_STACK_ALL_PATTERN is not set
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
CONFIG_INIT_ON_FREE_DEFAULT_ON=y
# end of Memory initialization
# 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_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y

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

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=y
# CONFIG_CRYPTO_AEGIS128 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=y
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=y
# CONFIG_CRYPTO_XTS is not set
CONFIG_CRYPTO_KEYWRAP=y
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ESSIV=y

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_VMAC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
# CONFIG_CRYPTO_CRC32 is not set
CONFIG_CRYPTO_CRC32_PCLMUL=y
# CONFIG_CRYPTO_XXHASH is not set
CONFIG_CRYPTO_BLAKE2B=y
CONFIG_CRYPTO_BLAKE2S=y
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_RMD160=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=y
CONFIG_CRYPTO_SM3=y
CONFIG_CRYPTO_STREEBOG=y
CONFIG_CRYPTO_WP512=y

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=y
# CONFIG_CRYPTO_AES_NI_INTEL is not set
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST_COMMON=y
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=y
# CONFIG_CRYPTO_DES is not set
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_586=y
CONFIG_CRYPTO_SM4=y
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_586 is not set

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

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# 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
CONFIG_CRYPTO_HASH_INFO=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_BLAKE2S=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
CONFIG_CRYPTO_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=y
CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_LIB_SM4=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=y
CONFIG_CRYPTO_DEV_PADLOCK_AES=y
CONFIG_CRYPTO_DEV_PADLOCK_SHA=y
# CONFIG_CRYPTO_DEV_GEODE is not set
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
# CONFIG_CRYPTO_DEV_CCP is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
# CONFIG_CRYPTO_DEV_QAT_C62X is not set
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCCVF is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
# CONFIG_CRYPTO_DEV_QAT_C62XVF is not set
# CONFIG_CRYPTO_DEV_VIRTIO is not set
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
# CONFIG_X509_CERTIFICATE_PARSER is not set
CONFIG_PKCS8_PRIVATE_KEY_PARSER=y

#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
# 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_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_CORDIC=y
CONFIG_PRIME_NUMBERS=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_CRC8=y
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
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_LZ4HC_COMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=y
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
CONFIG_XZ_DEC_ARM=y
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_BCH=y
CONFIG_BCH_CONST_PARAMS=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_DMA_MAP_BENCHMARK=y
CONFIG_SGL_ALLOC=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_32=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACK_HASH_ORDER=20
# end of Library routines

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# 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 is not set
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_SPLIT 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_PAHOLE_HAS_SPLIT_BTF=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_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set
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 is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
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_DIV_ZERO is not set
# CONFIG_UBSAN_UNREACHABLE is not set
# CONFIG_UBSAN_OBJECT_SIZE is not set
# CONFIG_UBSAN_BOOL is not set
# CONFIG_UBSAN_ENUM is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_UBSAN_SANITIZE_ALL=y
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_MISC is not set

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_PAGE_OWNER=y
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
CONFIG_DEBUG_WX=y
CONFIG_GENERIC_PTDUMP=y
CONFIG_PTDUMP_CORE=y
CONFIG_PTDUMP_DEBUGFS=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
# CONFIG_DEBUG_OBJECTS_FREE is not set
# CONFIG_DEBUG_OBJECTS_TIMERS is not set
# CONFIG_DEBUG_OBJECTS_WORK is not set
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
# CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER is not set
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_DEBUG_KMAP_LOCAL=y
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP=y
CONFIG_DEBUG_HIGHMEM=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_KASAN_SW_TAGS=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_HAVE_ARCH_KFENCE=y
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=1
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=1
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

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

CONFIG_DEBUG_TIMEKEEPING=y
CONFIG_DEBUG_PREEMPT=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RAW_LOCK_NESTING is not set
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=y
# 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_TRACE_IRQFLAGS=y
CONFIG_TRACE_IRQFLAGS_NMI=y
CONFIG_DEBUG_IRQFLAGS=y
CONFIG_STACKTRACE=y
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
# CONFIG_DEBUG_KOBJECT is not set

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

CONFIG_DEBUG_CREDENTIALS=y

#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
CONFIG_PROVE_RCU_LIST=y
CONFIG_TORTURE_TEST=y
CONFIG_RCU_SCALE_TEST=y
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_TRACE=y
CONFIG_RCU_EQS_DEBUG=y
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
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_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=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=y
# CONFIG_FUNCTION_GRAPH_TRACER is not set
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
# CONFIG_FUNCTION_PROFILER is not set
CONFIG_STACK_TRACER=y
# 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_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT=y
CONFIG_SYNTH_EVENTS=y
# CONFIG_HIST_TRIGGERS is not set
CONFIG_TRACE_EVENT_INJECT=y
CONFIG_TRACEPOINT_BENCHMARK=y
CONFIG_RING_BUFFER_BENCHMARK=y
# CONFIG_TRACE_EVAL_MAP_FILE is not set
CONFIG_FTRACE_RECORD_RECURSION=y
CONFIG_FTRACE_RECORD_RECURSION_SIZE=128
CONFIG_RING_BUFFER_RECORD_RECURSION=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS=y
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
CONFIG_SYNTH_EVENT_GEN_TEST=y
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
CONFIG_SAMPLES=y
CONFIG_SAMPLE_AUXDISPLAY=y
# CONFIG_SAMPLE_TRACE_EVENTS is not set
# CONFIG_SAMPLE_TRACE_PRINTK is not set
# CONFIG_SAMPLE_TRACE_ARRAY is not set
CONFIG_SAMPLE_KOBJECT=y
# CONFIG_SAMPLE_HW_BREAKPOINT is not set
# CONFIG_SAMPLE_KFIFO is not set
# CONFIG_SAMPLE_CONFIGFS is not set
# CONFIG_SAMPLE_VFIO_MDEV_MTTY is not set
# CONFIG_SAMPLE_VFIO_MDEV_MDPY is not set
# CONFIG_SAMPLE_VFIO_MDEV_MBOCHS is not set
# CONFIG_SAMPLE_WATCHDOG is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y

#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
CONFIG_DEBUG_TLBFLUSH=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
# CONFIG_IO_DELAY_0X80 is not set
CONFIG_IO_DELAY_0XED=y
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_FRAME_POINTER=y
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
CONFIG_KUNIT=y
CONFIG_KUNIT_DEBUGFS=y
CONFIG_KUNIT_TEST=y
CONFIG_KUNIT_EXAMPLE_TEST=y
# CONFIG_KUNIT_ALL_TESTS is not set
CONFIG_NOTIFIER_ERROR_INJECTION=y
# CONFIG_NETDEV_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_SORT is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST 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=y
# CONFIG_TEST_STRING_HELPERS is not set
CONFIG_TEST_STRSCPY=y
# CONFIG_TEST_KSTRTOX is not set
CONFIG_TEST_PRINTF=y
CONFIG_TEST_SCANF=y
CONFIG_TEST_BITMAP=y
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_OVERFLOW is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH 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_BITFIELD_KUNIT=y
# CONFIG_RESOURCE_KUNIT_TEST is not set
CONFIG_SYSCTL_KUNIT_TEST=y
CONFIG_LIST_KUNIT_TEST=y
CONFIG_LINEAR_RANGES_TEST=y
# CONFIG_CMDLINE_KUNIT_TEST is not set
CONFIG_BITS_TEST=y
CONFIG_RATIONAL_KUNIT_TEST=y
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_STACKINIT is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
CONFIG_TEST_FPU=y
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 4888 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='boot'
	export testcase='boot'
	export category='functional'
	export timeout='10m'
	export job_origin='boot-300s.yaml'
	export queue_cmdline_keys='branch
commit
queue_at_least_once'
	export queue='validate'
	export testbox='vm-snb-i386-27'
	export tbox_group='vm-snb-i386'
	export branch='linux-review/Sean-Nyekjaer/mtd-core-protect-access-to-mtd-devices-while-in-suspend/20211011-195606'
	export commit='d3ff51cfa9a64cdc18abe24c9821891b5122e617'
	export kconfig='i386-randconfig-a011-20211012'
	export repeat_to=6
	export nr_vm=160
	export submit_id='616719c1b2cb0f5340cb709e'
	export job_file='/lkp/jobs/scheduled/vm-snb-i386-27/boot-300-yocto-i386-minimal-20190520.cgz-d3ff51cfa9a64cdc18abe24c9821891b5122e617-20211014-86848-1be7mcg-4.yaml'
	export id='500f2ca586de13a96fe45743dbd4fb5f5811c267'
	export queuer_version='/lkp-src'
	export model='qemu-system-i386 -enable-kvm -cpu SandyBridge'
	export nr_cpu=2
	export memory='4G'
	export need_kconfig=\{\"KVM_GUEST\"\=\>\"y\"\}
	export ssh_base_port=23400
	export kernel_cmdline='vmalloc=128M initramfs_async=0 page_owner=on'
	export rootfs='yocto-i386-minimal-20190520.cgz'
	export compiler='clang-14'
	export enqueue_time='2021-10-14 01:39:14 +0800'
	export _id='616719c2b2cb0f5340cb709f'
	export _rt='/result/boot/300/vm-snb-i386/yocto-i386-minimal-20190520.cgz/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617'
	export user='lkp'
	export LKP_SERVER='internal-lkp-server'
	export result_root='/result/boot/300/vm-snb-i386/yocto-i386-minimal-20190520.cgz/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617/3'
	export scheduler_version='/lkp/lkp/.src-20211013-173054'
	export arch='i386'
	export max_uptime=600
	export initrd='/osimage/yocto/yocto-i386-minimal-20190520.cgz'
	export bootloader_append='root=/dev/ram0
user=lkp
job=/lkp/jobs/scheduled/vm-snb-i386-27/boot-300-yocto-i386-minimal-20190520.cgz-d3ff51cfa9a64cdc18abe24c9821891b5122e617-20211014-86848-1be7mcg-4.yaml
ARCH=i386
kconfig=i386-randconfig-a011-20211012
branch=linux-review/Sean-Nyekjaer/mtd-core-protect-access-to-mtd-devices-while-in-suspend/20211011-195606
commit=d3ff51cfa9a64cdc18abe24c9821891b5122e617
BOOT_IMAGE=/pkg/linux/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617/vmlinuz-5.15.0-rc1-00002-gd3ff51cfa9a6
vmalloc=128M initramfs_async=0 page_owner=on
max_uptime=600
RESULT_ROOT=/result/boot/300/vm-snb-i386/yocto-i386-minimal-20190520.cgz/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617/3
LKP_SERVER=internal-lkp-server
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617/modules.cgz'
	export lkp_initrd='/osimage/user/lkp/lkp-i386.cgz'
	export site='inn'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export queue_at_least_once=1
	export kernel='/pkg/linux/i386-randconfig-a011-20211012/clang-14/d3ff51cfa9a64cdc18abe24c9821891b5122e617/vmlinuz-5.15.0-rc1-00002-gd3ff51cfa9a6'
	export dequeue_time='2021-10-14 01:39:41 +0800'
	export job_initrd='/lkp/jobs/scheduled/vm-snb-i386-27/boot-300-yocto-i386-minimal-20190520.cgz-d3ff51cfa9a64cdc18abe24c9821891b5122e617-20211014-86848-1be7mcg-4.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test $LKP_SRC/tests/wrapper sleep 300
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	$LKP_SRC/stats/wrapper boot-slabinfo
	$LKP_SRC/stats/wrapper boot-meminfo
	$LKP_SRC/stats/wrapper memmap
	$LKP_SRC/stats/wrapper boot-memory
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper kernel-size
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper sleep
	$LKP_SRC/stats/wrapper meminfo

	$LKP_SRC/stats/wrapper time sleep.time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper last_state
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper time
}

"$@"

[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 19336 bytes --]

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-11 14:05 ` [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Boris Brezillon
@ 2021-10-15  6:22   ` Miquel Raynal
  2021-10-19 18:08     ` Sean Nyekjaer
  0 siblings, 1 reply; 23+ messages in thread
From: Miquel Raynal @ 2021-10-15  6:22 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

Hi Sean,

boris.brezillon@collabora.com wrote on Mon, 11 Oct 2021 16:05:46 +0200:

> On Mon, 11 Oct 2021 13:52:50 +0200
> Sean Nyekjaer <sean@geanix.com> wrote:
> 
> > Follow-up on discussion in https://lkml.org/lkml/2021/10/4/41
> > 
> > Changes since from rfc v1/v2:
> >  - added access protection for all device access hooks in mtd_info.
> >  - added Suggested-by to [1/3] patch.
> >  - removed refereces to commit ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op")
> >    from commit msg as commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") is 
> >    to be blamed.
> >  - tested on a kernel with LOCKDEP enabled.
> > 
> > @Miquel: I havn't covered every ioctl, to me it looks like they havn't
> > direct device access.

Yes indeed it looks like they re-use most of the mtdcore.c functions,
so it should be fine.

> > One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> > initialized. Seems cumbersome to have every mtd/nand driver to call
> > init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> > to mtd_set_dev_defaults() before nand_create_bbt()?  
> 
> I have a nasty trick for that one, but I'm not sure Miquel will like it
> (actually, I don't like it either, but it's so simple compared to the
> other options we have that I'm tempted to go for this approach until
> someone has time to invest in a cleaner solution :-)):
> 
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 3d6c6e880520..a9ac2d528a4d 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
>         mtd->_sync = nand_sync;
>         mtd->_lock = nand_lock;
>         mtd->_unlock = nand_unlock;
> -       mtd->_suspend = nand_suspend;
> -       mtd->_resume = nand_resume;
>         mtd->_reboot = nand_shutdown;
>         mtd->_block_isreserved = nand_block_isreserved;
>         mtd->_block_isbad = nand_block_isbad;
> @@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
>         if (ret)
>                 goto err_free_secure_regions;
>  
> +       /*
> +        * Populate the suspend/resume hooks after the BBT has been scanned to
> +        * avoid using the suspend lock and resume waitqueue which are only
> +        * initialized when mtd_device_register() is called.
> +        */
> +       mtd->_suspend = nand_suspend;
> +       mtd->_resume = nand_resume;
>         return 0;

I'm fine with this as long as it is documented for now.

Thanks,
Miquèl

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend
  2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
  2021-10-11 13:37   ` Boris Brezillon
  2021-10-14  6:50   ` [mtd] d3ff51cfa9: WARNING:at_kernel/locking/rwsem.c:#down_read kernel test robot
@ 2021-10-15  6:55   ` Boris Brezillon
  2 siblings, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-15  6:55 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Mon, 11 Oct 2021 13:52:51 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

>  struct mtd_info {
> @@ -476,10 +478,49 @@ static inline u32 mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops)
>  	return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize;
>  }
>  
> +static inline void mtd_start_access(struct mtd_info *mtd)
> +{
> +	struct mtd_info *master = mtd_get_master(mtd);

mtd_start_{access,end}() should only be called on master devices, so I
guess you can drop the mtd_get_master() call and use mtd directly.
Maybe add a WARN_ON_ONCE(mtd != mtd_get_master(mtd)) so we can
easily catch silly mistakes.

> +
> +	/*
> +	 * Don't take the suspend_lock on devices that don't
> +	 * implement the suspend hook. Otherwise, lockdep will
> +	 * complain about nested locks when trying to suspend MTD
> +	 * partitions or MTD devices created by gluebi which are
> +	 * backed by real devices.
> +	 */
> +	if (!master->_suspend)
> +		return;
> +
> +	/*
> +	 * Wait until the device is resumed. Should we have a
> +	 * non-blocking mode here?
> +	 */
> +	while (1) {
> +		down_read(&master->master.suspend_lock);
> +		if (!master->master.suspended)
> +			return;
> +
> +		up_read(&master->master.suspend_lock);
> +		wait_event(master->master.resume_wq, master->master.suspended == 0);
> +	}
> +}
> +
> +static inline void mtd_end_access(struct mtd_info *mtd)
> +{
> +	struct mtd_info *master = mtd_get_master(mtd);
> +
> +	if (!master->_suspend)
> +		return;
> +
> +	up_read(&master->master.suspend_lock);
> +}
> +
>  static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
>  				     loff_t ofs, size_t len)
>  {
>  	struct mtd_info *master = mtd_get_master(mtd);
> +	int ret;
>  
>  	if (!master->_max_bad_blocks)
>  		return -ENOTSUPP;
> @@ -487,8 +528,12 @@ static inline int mtd_max_bad_blocks(struct mtd_info *mtd,
>  	if (mtd->size < (len + ofs) || ofs < 0)
>  		return -EINVAL;
>  
> -	return master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
> -				       len);
> +	mtd_start_access(mtd);
> +	ret = master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),
> +				      len);
> +	mtd_end_access(mtd);

Please pass the master to those functions, there's no point walking the
parent chain again in the start/end_access() functions if you already
have the master retrieved in the caller. Oh, and there seems to be a
common pattern here, so maybe it's worth adding those macros:

#define mtd_no_suspend_void_call(master, method, ...) \
	mtd_start_access(master); \
	master->method(master, __VA_ARGS__); \
	mtd_end_access(master);

#define mtd_no_suspend_ret_call(ret, master, method, ...) \
	mtd_start_access(master); \
	ret = master->method(master, __VA_ARGS__); \
	mtd_end_access(master);

I don't really like the helper names, so feel free to propose something
else.

> +
> +	return ret;
>  }
>  


^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-15  6:22   ` Miquel Raynal
@ 2021-10-19 18:08     ` Sean Nyekjaer
  2021-10-20  6:52       ` Boris Brezillon
  0 siblings, 1 reply; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-19 18:08 UTC (permalink / raw)
  To: Miquel Raynal
  Cc: Boris Brezillon, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Fri, Oct 15, 2021 at 08:22:06AM +0200, Miquel Raynal wrote:
> Hi Sean,
> 
> boris.brezillon@collabora.com wrote on Mon, 11 Oct 2021 16:05:46 +0200:
> 
> > On Mon, 11 Oct 2021 13:52:50 +0200

[ ... ]

> 
> > > One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> > > initialized. Seems cumbersome to have every mtd/nand driver to call
> > > init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> > > to mtd_set_dev_defaults() before nand_create_bbt()?  
> > 
> > I have a nasty trick for that one, but I'm not sure Miquel will like it
> > (actually, I don't like it either, but it's so simple compared to the
> > other options we have that I'm tempted to go for this approach until
> > someone has time to invest in a cleaner solution :-)):
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 3d6c6e880520..a9ac2d528a4d 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         mtd->_sync = nand_sync;
> >         mtd->_lock = nand_lock;
> >         mtd->_unlock = nand_unlock;
> > -       mtd->_suspend = nand_suspend;
> > -       mtd->_resume = nand_resume;
> >         mtd->_reboot = nand_shutdown;
> >         mtd->_block_isreserved = nand_block_isreserved;
> >         mtd->_block_isbad = nand_block_isbad;
> > @@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         if (ret)
> >                 goto err_free_secure_regions;
> >  
> > +       /*
> > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > +        * avoid using the suspend lock and resume waitqueue which are only
> > +        * initialized when mtd_device_register() is called.
> > +        */
> > +       mtd->_suspend = nand_suspend;
> > +       mtd->_resume = nand_resume;
> >         return 0;
> 
> I'm fine with this as long as it is documented for now.
> 

Hi Boris and Miquel,

gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
suspend resume hooks :(
Guess there is other drivers that does the same thing...

I have looked in the history and tried to blame gpmi-nand.c, but I can't
see the reason to why NAND_SKIP_BBTSCAN is set.

I have tested Boris' hack with this diff (and it seems to work):

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 4d08e4ab5c1b..ec7f44d630b6 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2073,8 +2073,6 @@ static int gpmi_nand_attach_chip(struct nand_chip *chip)
 	if (ret)
 		return ret;
 
-	chip->options |= NAND_SKIP_BBTSCAN;
-
 	return 0;
 }
 
@@ -2460,9 +2459,6 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
 		goto err_out;
 
 	ret = nand_boot_init(this);
-	if (ret)
-		goto err_nand_cleanup;
-	ret = nand_create_bbt(chip);
 	if (ret)
 		goto err_nand_cleanup;
 

Do I miss something?

/Sean

^ permalink raw reply related	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-19 18:08     ` Sean Nyekjaer
@ 2021-10-20  6:52       ` Boris Brezillon
  2021-10-20  7:00         ` Boris Brezillon
  0 siblings, 1 reply; 23+ messages in thread
From: Boris Brezillon @ 2021-10-20  6:52 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Tue, 19 Oct 2021 20:08:00 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> On Fri, Oct 15, 2021 at 08:22:06AM +0200, Miquel Raynal wrote:
> > Hi Sean,
> > 
> > boris.brezillon@collabora.com wrote on Mon, 11 Oct 2021 16:05:46 +0200:
> >   
> > > On Mon, 11 Oct 2021 13:52:50 +0200  
> 
> [ ... ]
> 
> >   
> > > > One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> > > > initialized. Seems cumbersome to have every mtd/nand driver to call
> > > > init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> > > > to mtd_set_dev_defaults() before nand_create_bbt()?    
> > > 
> > > I have a nasty trick for that one, but I'm not sure Miquel will like it
> > > (actually, I don't like it either, but it's so simple compared to the
> > > other options we have that I'm tempted to go for this approach until
> > > someone has time to invest in a cleaner solution :-)):
> > > 
> > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > > index 3d6c6e880520..a9ac2d528a4d 100644
> > > --- a/drivers/mtd/nand/raw/nand_base.c
> > > +++ b/drivers/mtd/nand/raw/nand_base.c
> > > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> > >         mtd->_sync = nand_sync;
> > >         mtd->_lock = nand_lock;
> > >         mtd->_unlock = nand_unlock;
> > > -       mtd->_suspend = nand_suspend;
> > > -       mtd->_resume = nand_resume;
> > >         mtd->_reboot = nand_shutdown;
> > >         mtd->_block_isreserved = nand_block_isreserved;
> > >         mtd->_block_isbad = nand_block_isbad;
> > > @@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
> > >         if (ret)
> > >                 goto err_free_secure_regions;
> > >  
> > > +       /*
> > > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > > +        * avoid using the suspend lock and resume waitqueue which are only
> > > +        * initialized when mtd_device_register() is called.
> > > +        */
> > > +       mtd->_suspend = nand_suspend;
> > > +       mtd->_resume = nand_resume;
> > >         return 0;  
> > 
> > I'm fine with this as long as it is documented for now.
> >   
> 
> Hi Boris and Miquel,
> 
> gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> suspend resume hooks :(
> Guess there is other drivers that does the same thing...

This should fix the issue:

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 3d6c6e880520..c92b17f66994 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
        mtd->_sync = nand_sync;
        mtd->_lock = nand_lock;
        mtd->_unlock = nand_unlock;
-       mtd->_suspend = nand_suspend;
-       mtd->_resume = nand_resume;
        mtd->_reboot = nand_shutdown;
        mtd->_block_isreserved = nand_block_isreserved;
        mtd->_block_isbad = nand_block_isbad;
@@ -6262,13 +6260,21 @@ static int nand_scan_tail(struct nand_chip *chip)
 
        /* Check, if we should skip the bad block table scan */
        if (chip->options & NAND_SKIP_BBTSCAN)
-               return 0;
+               goto out;
 
        /* Build bad block table */
        ret = nand_create_bbt(chip);
        if (ret)
                goto err_free_secure_regions;
 
+out:
+       /*
+        * Populate the suspend/resume hooks after the BBT has been scanned to
+        * avoid using the suspend lock and resume waitqueue which are only
+        * initialized when mtd_device_register() is called.
+        */
+       mtd->_suspend = nand_suspend;
+       mtd->_resume = nand_resume;
        return 0;
 
 err_free_secure_regions:

^ permalink raw reply related	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  6:52       ` Boris Brezillon
@ 2021-10-20  7:00         ` Boris Brezillon
  2021-10-20  7:12           ` Miquel Raynal
  2021-10-20  7:12           ` Sean Nyekjaer
  0 siblings, 2 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-20  7:00 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Wed, 20 Oct 2021 08:52:50 +0200
Boris Brezillon <boris.brezillon@collabora.com> wrote:

> On Tue, 19 Oct 2021 20:08:00 +0200
> Sean Nyekjaer <sean@geanix.com> wrote:
> 
> > On Fri, Oct 15, 2021 at 08:22:06AM +0200, Miquel Raynal wrote:  
> > > Hi Sean,
> > > 
> > > boris.brezillon@collabora.com wrote on Mon, 11 Oct 2021 16:05:46 +0200:
> > >     
> > > > On Mon, 11 Oct 2021 13:52:50 +0200    
> > 
> > [ ... ]
> >   
> > >     
> > > > > One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> > > > > initialized. Seems cumbersome to have every mtd/nand driver to call
> > > > > init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> > > > > to mtd_set_dev_defaults() before nand_create_bbt()?      
> > > > 
> > > > I have a nasty trick for that one, but I'm not sure Miquel will like it
> > > > (actually, I don't like it either, but it's so simple compared to the
> > > > other options we have that I'm tempted to go for this approach until
> > > > someone has time to invest in a cleaner solution :-)):
> > > > 
> > > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > > > index 3d6c6e880520..a9ac2d528a4d 100644
> > > > --- a/drivers/mtd/nand/raw/nand_base.c
> > > > +++ b/drivers/mtd/nand/raw/nand_base.c
> > > > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> > > >         mtd->_sync = nand_sync;
> > > >         mtd->_lock = nand_lock;
> > > >         mtd->_unlock = nand_unlock;
> > > > -       mtd->_suspend = nand_suspend;
> > > > -       mtd->_resume = nand_resume;
> > > >         mtd->_reboot = nand_shutdown;
> > > >         mtd->_block_isreserved = nand_block_isreserved;
> > > >         mtd->_block_isbad = nand_block_isbad;
> > > > @@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
> > > >         if (ret)
> > > >                 goto err_free_secure_regions;
> > > >  
> > > > +       /*
> > > > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > > > +        * avoid using the suspend lock and resume waitqueue which are only
> > > > +        * initialized when mtd_device_register() is called.
> > > > +        */
> > > > +       mtd->_suspend = nand_suspend;
> > > > +       mtd->_resume = nand_resume;
> > > >         return 0;    
> > > 
> > > I'm fine with this as long as it is documented for now.
> > >     
> > 
> > Hi Boris and Miquel,
> > 
> > gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> > suspend resume hooks :(
> > Guess there is other drivers that does the same thing...  
> 
> This should fix the issue:
> 
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 3d6c6e880520..c92b17f66994 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
>         mtd->_sync = nand_sync;
>         mtd->_lock = nand_lock;
>         mtd->_unlock = nand_unlock;
> -       mtd->_suspend = nand_suspend;
> -       mtd->_resume = nand_resume;
>         mtd->_reboot = nand_shutdown;
>         mtd->_block_isreserved = nand_block_isreserved;
>         mtd->_block_isbad = nand_block_isbad;
> @@ -6262,13 +6260,21 @@ static int nand_scan_tail(struct nand_chip *chip)
>  
>         /* Check, if we should skip the bad block table scan */
>         if (chip->options & NAND_SKIP_BBTSCAN)
> -               return 0;
> +               goto out;
>  
>         /* Build bad block table */
>         ret = nand_create_bbt(chip);
>         if (ret)
>                 goto err_free_secure_regions;
>  
> +out:
> +       /*
> +        * Populate the suspend/resume hooks after the BBT has been scanned to
> +        * avoid using the suspend lock and resume waitqueue which are only
> +        * initialized when mtd_device_register() is called.
> +        */
> +       mtd->_suspend = nand_suspend;
> +       mtd->_resume = nand_resume;
>         return 0;
>  
>  err_free_secure_regions:

Actually, this version is even cleaner:

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 3d6c6e880520..98c39b7f6279 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
        mtd->_sync = nand_sync;
        mtd->_lock = nand_lock;
        mtd->_unlock = nand_unlock;
-       mtd->_suspend = nand_suspend;
-       mtd->_resume = nand_resume;
        mtd->_reboot = nand_shutdown;
        mtd->_block_isreserved = nand_block_isreserved;
        mtd->_block_isbad = nand_block_isbad;
@@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
                goto err_free_interface_config;
 
        /* Check, if we should skip the bad block table scan */
-       if (chip->options & NAND_SKIP_BBTSCAN)
-               return 0;
-
-       /* Build bad block table */
-       ret = nand_create_bbt(chip);
-       if (ret)
-               goto err_free_secure_regions;
+       if (chip->options & NAND_SKIP_BBTSCAN) {
+               /* Build bad block table */
+               ret = nand_create_bbt(chip);
+               if (ret)
+                       goto err_free_secure_regions;
+       }
 
+       /*
+        * Populate the suspend/resume hooks after the BBT has been scanned to
+        * avoid using the suspend lock and resume waitqueue which are only
+        * initialized when mtd_device_register() is called.
+        */
+       mtd->_suspend = nand_suspend;
+       mtd->_resume = nand_resume;
        return 0;
 
 err_free_secure_regions:

^ permalink raw reply related	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:00         ` Boris Brezillon
@ 2021-10-20  7:12           ` Miquel Raynal
  2021-10-20  7:23             ` Sean Nyekjaer
  2021-10-20  7:12           ` Sean Nyekjaer
  1 sibling, 1 reply; 23+ messages in thread
From: Miquel Raynal @ 2021-10-20  7:12 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Sean Nyekjaer, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

Hi Boris,

boris.brezillon@collabora.com wrote on Wed, 20 Oct 2021 09:00:58 +0200:

> On Wed, 20 Oct 2021 08:52:50 +0200
> Boris Brezillon <boris.brezillon@collabora.com> wrote:
> 
> > On Tue, 19 Oct 2021 20:08:00 +0200
> > Sean Nyekjaer <sean@geanix.com> wrote:
> >   
> > > On Fri, Oct 15, 2021 at 08:22:06AM +0200, Miquel Raynal wrote:    
> > > > Hi Sean,
> > > > 
> > > > boris.brezillon@collabora.com wrote on Mon, 11 Oct 2021 16:05:46 +0200:
> > > >       
> > > > > On Mon, 11 Oct 2021 13:52:50 +0200      
> > > 
> > > [ ... ]
> > >     
> > > >       
> > > > > > One (small) issue still present. gpmi_nand.c uses the rwsem before it's
> > > > > > initialized. Seems cumbersome to have every mtd/nand driver to call
> > > > > > init_waitqueue_head() and init_rwsem(). Could we somehow move the call
> > > > > > to mtd_set_dev_defaults() before nand_create_bbt()?        
> > > > > 
> > > > > I have a nasty trick for that one, but I'm not sure Miquel will like it
> > > > > (actually, I don't like it either, but it's so simple compared to the
> > > > > other options we have that I'm tempted to go for this approach until
> > > > > someone has time to invest in a cleaner solution :-)):
> > > > > 
> > > > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > > > > index 3d6c6e880520..a9ac2d528a4d 100644
> > > > > --- a/drivers/mtd/nand/raw/nand_base.c
> > > > > +++ b/drivers/mtd/nand/raw/nand_base.c
> > > > > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> > > > >         mtd->_sync = nand_sync;
> > > > >         mtd->_lock = nand_lock;
> > > > >         mtd->_unlock = nand_unlock;
> > > > > -       mtd->_suspend = nand_suspend;
> > > > > -       mtd->_resume = nand_resume;
> > > > >         mtd->_reboot = nand_shutdown;
> > > > >         mtd->_block_isreserved = nand_block_isreserved;
> > > > >         mtd->_block_isbad = nand_block_isbad;
> > > > > @@ -6269,6 +6267,13 @@ static int nand_scan_tail(struct nand_chip *chip)
> > > > >         if (ret)
> > > > >                 goto err_free_secure_regions;
> > > > >  
> > > > > +       /*
> > > > > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > > > > +        * avoid using the suspend lock and resume waitqueue which are only
> > > > > +        * initialized when mtd_device_register() is called.
> > > > > +        */
> > > > > +       mtd->_suspend = nand_suspend;
> > > > > +       mtd->_resume = nand_resume;
> > > > >         return 0;      
> > > > 
> > > > I'm fine with this as long as it is documented for now.
> > > >       
> > > 
> > > Hi Boris and Miquel,
> > > 
> > > gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> > > suspend resume hooks :(
> > > Guess there is other drivers that does the same thing...    
> > 
> > This should fix the issue:
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 3d6c6e880520..c92b17f66994 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         mtd->_sync = nand_sync;
> >         mtd->_lock = nand_lock;
> >         mtd->_unlock = nand_unlock;
> > -       mtd->_suspend = nand_suspend;
> > -       mtd->_resume = nand_resume;
> >         mtd->_reboot = nand_shutdown;
> >         mtd->_block_isreserved = nand_block_isreserved;
> >         mtd->_block_isbad = nand_block_isbad;
> > @@ -6262,13 +6260,21 @@ static int nand_scan_tail(struct nand_chip *chip)
> >  
> >         /* Check, if we should skip the bad block table scan */
> >         if (chip->options & NAND_SKIP_BBTSCAN)
> > -               return 0;
> > +               goto out;
> >  
> >         /* Build bad block table */
> >         ret = nand_create_bbt(chip);
> >         if (ret)
> >                 goto err_free_secure_regions;
> >  
> > +out:
> > +       /*
> > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > +        * avoid using the suspend lock and resume waitqueue which are only
> > +        * initialized when mtd_device_register() is called.
> > +        */
> > +       mtd->_suspend = nand_suspend;
> > +       mtd->_resume = nand_resume;
> >         return 0;
> >  
> >  err_free_secure_regions:  
> 
> Actually, this version is even cleaner:
> 
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 3d6c6e880520..98c39b7f6279 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
>         mtd->_sync = nand_sync;
>         mtd->_lock = nand_lock;
>         mtd->_unlock = nand_unlock;
> -       mtd->_suspend = nand_suspend;
> -       mtd->_resume = nand_resume;
>         mtd->_reboot = nand_shutdown;
>         mtd->_block_isreserved = nand_block_isreserved;
>         mtd->_block_isbad = nand_block_isbad;
> @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
>                 goto err_free_interface_config;
>  
>         /* Check, if we should skip the bad block table scan */
> -       if (chip->options & NAND_SKIP_BBTSCAN)
> -               return 0;
> -
> -       /* Build bad block table */
> -       ret = nand_create_bbt(chip);
> -       if (ret)
> -               goto err_free_secure_regions;
> +       if (chip->options & NAND_SKIP_BBTSCAN) {
> +               /* Build bad block table */
> +               ret = nand_create_bbt(chip);
> +               if (ret)
> +                       goto err_free_secure_regions;
> +       }

Nice idea.

>  
> +       /*
> +        * Populate the suspend/resume hooks after the BBT has been scanned to
> +        * avoid using the suspend lock and resume waitqueue which are only
> +        * initialized when mtd_device_register() is called.
> +        */
> +       mtd->_suspend = nand_suspend;
> +       mtd->_resume = nand_resume;
>         return 0;
>  
>  err_free_secure_regions:

Cheers,
Miquèl

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:00         ` Boris Brezillon
  2021-10-20  7:12           ` Miquel Raynal
@ 2021-10-20  7:12           ` Sean Nyekjaer
  2021-10-20  7:23             ` Miquel Raynal
  2021-10-20  7:30             ` Boris Brezillon
  1 sibling, 2 replies; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-20  7:12 UTC (permalink / raw)
  To: Boris Brezillon
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Wed, Oct 20, 2021 at 09:00:58AM +0200, Boris Brezillon wrote:
> On Wed, 20 Oct 2021 08:52:50 +0200
> Boris Brezillon <boris.brezillon@collabora.com> wrote:
> 

[ ... ]
> > > 
> > > Hi Boris and Miquel,
> > > 
> > > gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> > > suspend resume hooks :(
> > > Guess there is other drivers that does the same thing...  
> 
> Actually, this version is even cleaner:
> 
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 3d6c6e880520..98c39b7f6279 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
>         mtd->_sync = nand_sync;
>         mtd->_lock = nand_lock;
>         mtd->_unlock = nand_unlock;
> -       mtd->_suspend = nand_suspend;
> -       mtd->_resume = nand_resume;
>         mtd->_reboot = nand_shutdown;
>         mtd->_block_isreserved = nand_block_isreserved;
>         mtd->_block_isbad = nand_block_isbad;
> @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
>                 goto err_free_interface_config;
>  
>         /* Check, if we should skip the bad block table scan */
> -       if (chip->options & NAND_SKIP_BBTSCAN)
> -               return 0;
> -
> -       /* Build bad block table */
> -       ret = nand_create_bbt(chip);
> -       if (ret)
> -               goto err_free_secure_regions;
> +       if (chip->options & NAND_SKIP_BBTSCAN) {
> +               /* Build bad block table */
> +               ret = nand_create_bbt(chip);
> +               if (ret)
> +                       goto err_free_secure_regions;
> +       }
>  
> +       /*
> +        * Populate the suspend/resume hooks after the BBT has been scanned to
> +        * avoid using the suspend lock and resume waitqueue which are only
> +        * initialized when mtd_device_register() is called.
> +        */
> +       mtd->_suspend = nand_suspend;
> +       mtd->_resume = nand_resume;
>         return 0;
>  
>  err_free_secure_regions:

Why is the gpmi-nand.c and other drivers set NAND_SKIP_BBTSCAN and then
call nand_create_bbt() directly?

To me it looks like legacy leftover...

/Sean

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:12           ` Sean Nyekjaer
@ 2021-10-20  7:23             ` Miquel Raynal
  2021-10-20  7:30             ` Boris Brezillon
  1 sibling, 0 replies; 23+ messages in thread
From: Miquel Raynal @ 2021-10-20  7:23 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Boris Brezillon, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

Hi Sean,

sean@geanix.com wrote on Wed, 20 Oct 2021 09:12:35 +0200:

> On Wed, Oct 20, 2021 at 09:00:58AM +0200, Boris Brezillon wrote:
> > On Wed, 20 Oct 2021 08:52:50 +0200
> > Boris Brezillon <boris.brezillon@collabora.com> wrote:
> >   
> 
> [ ... ]
> > > > 
> > > > Hi Boris and Miquel,
> > > > 
> > > > gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> > > > suspend resume hooks :(
> > > > Guess there is other drivers that does the same thing...    
> > 
> > Actually, this version is even cleaner:
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 3d6c6e880520..98c39b7f6279 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         mtd->_sync = nand_sync;
> >         mtd->_lock = nand_lock;
> >         mtd->_unlock = nand_unlock;
> > -       mtd->_suspend = nand_suspend;
> > -       mtd->_resume = nand_resume;
> >         mtd->_reboot = nand_shutdown;
> >         mtd->_block_isreserved = nand_block_isreserved;
> >         mtd->_block_isbad = nand_block_isbad;
> > @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
> >                 goto err_free_interface_config;
> >  
> >         /* Check, if we should skip the bad block table scan */
> > -       if (chip->options & NAND_SKIP_BBTSCAN)
> > -               return 0;
> > -
> > -       /* Build bad block table */
> > -       ret = nand_create_bbt(chip);
> > -       if (ret)
> > -               goto err_free_secure_regions;
> > +       if (chip->options & NAND_SKIP_BBTSCAN) {
> > +               /* Build bad block table */
> > +               ret = nand_create_bbt(chip);
> > +               if (ret)
> > +                       goto err_free_secure_regions;
> > +       }
> >  
> > +       /*
> > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > +        * avoid using the suspend lock and resume waitqueue which are only
> > +        * initialized when mtd_device_register() is called.
> > +        */
> > +       mtd->_suspend = nand_suspend;
> > +       mtd->_resume = nand_resume;
> >         return 0;
> >  
> >  err_free_secure_regions:  
> 
> Why is the gpmi-nand.c and other drivers set NAND_SKIP_BBTSCAN and then
> call nand_create_bbt() directly?
> 
> To me it looks like legacy leftover...

It is...

885d71e5838f ("mtd: gpmi: fix the NULL pointer") added this flag to
avoid a NULL pointer dereference on chip->buffer->databuf on mx23,
which IIRC does not exist anymore.

I believe we could get rid of it. But anyway, I like the "cleanup"
proposed by Boris so IMHO you can add these two patches to the series.

Thanks,
Miquèl

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:12           ` Miquel Raynal
@ 2021-10-20  7:23             ` Sean Nyekjaer
  2021-10-20  7:47               ` Boris Brezillon
  0 siblings, 1 reply; 23+ messages in thread
From: Sean Nyekjaer @ 2021-10-20  7:23 UTC (permalink / raw)
  To: Miquel Raynal
  Cc: Boris Brezillon, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Wed, Oct 20, 2021 at 09:12:28AM +0200, Miquel Raynal wrote:
> > 
> > Actually, this version is even cleaner:
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 3d6c6e880520..98c39b7f6279 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         mtd->_sync = nand_sync;
> >         mtd->_lock = nand_lock;
> >         mtd->_unlock = nand_unlock;
> > -       mtd->_suspend = nand_suspend;
> > -       mtd->_resume = nand_resume;
> >         mtd->_reboot = nand_shutdown;
> >         mtd->_block_isreserved = nand_block_isreserved;
> >         mtd->_block_isbad = nand_block_isbad;
> > @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
> >                 goto err_free_interface_config;
> >  
> >         /* Check, if we should skip the bad block table scan */
> > -       if (chip->options & NAND_SKIP_BBTSCAN)
> > -               return 0;
> > -
> > -       /* Build bad block table */
> > -       ret = nand_create_bbt(chip);
> > -       if (ret)
> > -               goto err_free_secure_regions;
> > +       if (chip->options & NAND_SKIP_BBTSCAN) {
> > +               /* Build bad block table */
> > +               ret = nand_create_bbt(chip);
> > +               if (ret)
> > +                       goto err_free_secure_regions;
> > +       }
> 
> Nice idea.
> 
> >  
> > +       /*
> > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > +        * avoid using the suspend lock and resume waitqueue which are only
> > +        * initialized when mtd_device_register() is called.
> > +        */
> > +       mtd->_suspend = nand_suspend;
> > +       mtd->_resume = nand_resume;
> >         return 0;
> >  
> >  err_free_secure_regions:

Could be a nice idea, but it doesn't work...
gpmi-nand.c calls nand_create_bbt() after this have run ;)

/Sean

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:12           ` Sean Nyekjaer
  2021-10-20  7:23             ` Miquel Raynal
@ 2021-10-20  7:30             ` Boris Brezillon
  1 sibling, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-20  7:30 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Wed, 20 Oct 2021 09:12:35 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> On Wed, Oct 20, 2021 at 09:00:58AM +0200, Boris Brezillon wrote:
> > On Wed, 20 Oct 2021 08:52:50 +0200
> > Boris Brezillon <boris.brezillon@collabora.com> wrote:
> >   
> 
> [ ... ]
> > > > 
> > > > Hi Boris and Miquel,
> > > > 
> > > > gpmi-nand.c sets NAND_SKIP_BBTSCAN so we won't get there and populate
> > > > suspend resume hooks :(
> > > > Guess there is other drivers that does the same thing...    
> > 
> > Actually, this version is even cleaner:
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 3d6c6e880520..98c39b7f6279 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> >         mtd->_sync = nand_sync;
> >         mtd->_lock = nand_lock;
> >         mtd->_unlock = nand_unlock;
> > -       mtd->_suspend = nand_suspend;
> > -       mtd->_resume = nand_resume;
> >         mtd->_reboot = nand_shutdown;
> >         mtd->_block_isreserved = nand_block_isreserved;
> >         mtd->_block_isbad = nand_block_isbad;
> > @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
> >                 goto err_free_interface_config;
> >  
> >         /* Check, if we should skip the bad block table scan */
> > -       if (chip->options & NAND_SKIP_BBTSCAN)
> > -               return 0;
> > -
> > -       /* Build bad block table */
> > -       ret = nand_create_bbt(chip);
> > -       if (ret)
> > -               goto err_free_secure_regions;
> > +       if (chip->options & NAND_SKIP_BBTSCAN) {
> > +               /* Build bad block table */
> > +               ret = nand_create_bbt(chip);
> > +               if (ret)
> > +                       goto err_free_secure_regions;
> > +       }
> >  
> > +       /*
> > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > +        * avoid using the suspend lock and resume waitqueue which are only
> > +        * initialized when mtd_device_register() is called.
> > +        */
> > +       mtd->_suspend = nand_suspend;
> > +       mtd->_resume = nand_resume;
> >         return 0;
> >  
> >  err_free_secure_regions:  
> 
> Why is the gpmi-nand.c and other drivers set NAND_SKIP_BBTSCAN and then
> call nand_create_bbt() directly?

Dunno, but there's a nand_boot_init() call between the nand_scan() and
nand_create_bbt() calls, so I guess it has to do with something done in
this function...

> 
> To me it looks like legacy leftover...

If I were you, I wouldn't take the risk to change that in the same
patch series. The suspend/resume changes are already quite invasive,
so let's try to keep it as small/simple as possible.

^ permalink raw reply	[flat|nested] 23+ messages in thread

* Re: [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend
  2021-10-20  7:23             ` Sean Nyekjaer
@ 2021-10-20  7:47               ` Boris Brezillon
  0 siblings, 0 replies; 23+ messages in thread
From: Boris Brezillon @ 2021-10-20  7:47 UTC (permalink / raw)
  To: Sean Nyekjaer
  Cc: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
	Boris Brezillon, linux-mtd, linux-kernel

On Wed, 20 Oct 2021 09:23:52 +0200
Sean Nyekjaer <sean@geanix.com> wrote:

> On Wed, Oct 20, 2021 at 09:12:28AM +0200, Miquel Raynal wrote:
> > > 
> > > Actually, this version is even cleaner:
> > > 
> > > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > > index 3d6c6e880520..98c39b7f6279 100644
> > > --- a/drivers/mtd/nand/raw/nand_base.c
> > > +++ b/drivers/mtd/nand/raw/nand_base.c
> > > @@ -6222,8 +6222,6 @@ static int nand_scan_tail(struct nand_chip *chip)
> > >         mtd->_sync = nand_sync;
> > >         mtd->_lock = nand_lock;
> > >         mtd->_unlock = nand_unlock;
> > > -       mtd->_suspend = nand_suspend;
> > > -       mtd->_resume = nand_resume;
> > >         mtd->_reboot = nand_shutdown;
> > >         mtd->_block_isreserved = nand_block_isreserved;
> > >         mtd->_block_isbad = nand_block_isbad;
> > > @@ -6261,14 +6259,20 @@ static int nand_scan_tail(struct nand_chip *chip)
> > >                 goto err_free_interface_config;
> > >  
> > >         /* Check, if we should skip the bad block table scan */
> > > -       if (chip->options & NAND_SKIP_BBTSCAN)
> > > -               return 0;
> > > -
> > > -       /* Build bad block table */
> > > -       ret = nand_create_bbt(chip);
> > > -       if (ret)
> > > -               goto err_free_secure_regions;
> > > +       if (chip->options & NAND_SKIP_BBTSCAN) {
> > > +               /* Build bad block table */
> > > +               ret = nand_create_bbt(chip);
> > > +               if (ret)
> > > +                       goto err_free_secure_regions;
> > > +       }  
> > 
> > Nice idea.
> >   
> > >  
> > > +       /*
> > > +        * Populate the suspend/resume hooks after the BBT has been scanned to
> > > +        * avoid using the suspend lock and resume waitqueue which are only
> > > +        * initialized when mtd_device_register() is called.
> > > +        */
> > > +       mtd->_suspend = nand_suspend;
> > > +       mtd->_resume = nand_resume;
> > >         return 0;
> > >  
> > >  err_free_secure_regions:  
> 
> Could be a nice idea, but it doesn't work...
> gpmi-nand.c calls nand_create_bbt() after this have run ;)

Er, indeed. Can you try with this instead:

diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c
index b7ad030225f8..548647bd27a4 100644
--- a/drivers/mtd/nand/raw/nand_bbt.c
+++ b/drivers/mtd/nand/raw/nand_bbt.c
@@ -1397,8 +1397,28 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
  */
 int nand_create_bbt(struct nand_chip *this)
 {
+       struct mtd_info *mtd = nand_to_mtd(this)
+       int (*suspend) (struct mtd_info *) = mtd->_suspend;
+       int (*resume) (struct mtd_info *) = mtd->_resume;
        int ret;
 
+       /*
+        * The BBT scan logic use the MTD helpers before the MTD layer had a
+        * chance to initialize the device, and that leads to issues when
+        * accessing the uninitialized suspend lock. Let's temporarily set the
+        * suspend/resume hooks to NULL to skip the lock acquire/release step.
+        *
+        * FIXME: This is an ugly hack, so please don't copy this pattern to
+        * other MTD implementations. The proper fix would be to implement a
+        * generic BBT scan logic at the NAND level that's not using any of the
+        * MTD helpers to access pages. We also might consider doing a two
+        * step initialization at the MTD level (mtd_device_init() +
+        * mtd_device_register()) so some of the fields are initialized
+        * early.
+        */
+       mtd->_suspend = NULL;
+       mtd->_resume = NULL;
+
        /* Is a flash based bad block table requested? */
        if (this->bbt_options & NAND_BBT_USE_FLASH) {
                /* Use the default pattern descriptors */
@@ -1422,7 +1442,13 @@ int nand_create_bbt(struct nand_chip *this)
                        return ret;
        }
 
-       return nand_scan_bbt(this, this->badblock_pattern);
+       ret = nand_scan_bbt(this, this->badblock_pattern);
+
+       /* Restore the suspend/resume hooks. */
+       mtd->_suspend = suspend;
+       mtd->_resume = resume;
+
+       return ret;
 }
 EXPORT_SYMBOL(nand_create_bbt);
 

^ permalink raw reply related	[flat|nested] 23+ messages in thread

end of thread, other threads:[~2021-10-20  7:49 UTC | newest]

Thread overview: 23+ messages (download: mbox.gz / follow: Atom feed)
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2021-10-11 11:52 [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
2021-10-11 11:52 ` [PATCH 1/3] mtd: core: protect access to MTD " Sean Nyekjaer
2021-10-11 13:37   ` Boris Brezillon
2021-10-14  6:50   ` [mtd] d3ff51cfa9: WARNING:at_kernel/locking/rwsem.c:#down_read kernel test robot
2021-10-15  6:55   ` [PATCH 1/3] mtd: core: protect access to MTD devices while in suspend Boris Brezillon
2021-10-11 11:52 ` [PATCH 2/3] mtd: rawnand: remove suspended check Sean Nyekjaer
2021-10-11 11:52 ` [PATCH 3/3] mtd: mtdconcat: add suspend lock handling Sean Nyekjaer
2021-10-11 13:15   ` Boris Brezillon
2021-10-11 13:27     ` Boris Brezillon
2021-10-11 13:35       ` Sean Nyekjaer
2021-10-11 13:49         ` Boris Brezillon
2021-10-11 13:58   ` Boris Brezillon
2021-10-11 14:05 ` [PATCH 0/3] mtd: core: protect access to mtd devices while in suspend Boris Brezillon
2021-10-15  6:22   ` Miquel Raynal
2021-10-19 18:08     ` Sean Nyekjaer
2021-10-20  6:52       ` Boris Brezillon
2021-10-20  7:00         ` Boris Brezillon
2021-10-20  7:12           ` Miquel Raynal
2021-10-20  7:23             ` Sean Nyekjaer
2021-10-20  7:47               ` Boris Brezillon
2021-10-20  7:12           ` Sean Nyekjaer
2021-10-20  7:23             ` Miquel Raynal
2021-10-20  7:30             ` Boris Brezillon

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