* [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
@ 2020-08-16 22:26 Randy Dunlap
2020-08-16 23:26 ` kernel test robot
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Randy Dunlap @ 2020-08-16 22:26 UTC (permalink / raw)
To: linux-kernel; +Cc: Randy Dunlap, Peter Zijlstra, Ingo Molnar
Fix kernel-doc warnings in <linux/seqlock.h>.
../include/linux/seqlock.h:152: warning: Incorrect use of kernel-doc format: * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
../include/linux/seqlock.h:164: warning: Incorrect use of kernel-doc format: * SEQCOUNT_LOCKTYPE() - Instantiate seqcount_LOCKNAME_t and helpers
../include/linux/seqlock.h:229: warning: Function parameter or member 'seq_name' not described in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Function parameter or member 'assoc_lock' not described in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Excess function parameter 'name' description in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:229: warning: Excess function parameter 'lock' description in 'SEQCOUNT_LOCKTYPE_ZERO'
../include/linux/seqlock.h:695: warning: duplicate section name 'NOTE'
Demote kernel-doc notation for the macros "seqcount_LOCKNAME_init()" and
"SEQCOUNT_LOCKTYPE()"; scripts/kernel-doc does not handle them correctly.
Move the definition of seqcount_LOCKNAME_init() to just after its
documentation instead of having them separated by SEQCOUNT_LOCKTYPE().
Rename function parameters in SEQCNT_LOCKNAME_ZERO() documentation
to match the macro's argument names. Change the macro name in the
documentation to SEQCOUNT_LOCKTYPE_ZERO() to match the macro's name.
For raw_write_seqcount_latch(), rename the second NOTE: to NOTE2:
to prevent a kernel-doc warning. However, the generated output is not
quite as nice as it could be for this.
Fix a typo: s/LOCKTYPR/LOCKTYPE/
Fixes: 0efc94c5d15c ("seqcount: Compress SEQCNT_LOCKNAME_ZERO()")
Fixes: e4e9ab3f9f91 ("seqlock: Fold seqcount_LOCKNAME_init() definition")
Fixes: a8772dccb2ec ("seqlock: Fold seqcount_LOCKNAME_t definition")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
---
include/linux/seqlock.h | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
--- lnx-59-rc1.orig/include/linux/seqlock.h
+++ lnx-59-rc1/include/linux/seqlock.h
@@ -138,7 +138,7 @@ static inline void seqcount_lockdep_read
#endif
/**
- * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPR associated
+ * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
* @seqcount: The real sequence counter
* @lock: Pointer to the associated spinlock
*
@@ -148,11 +148,17 @@ static inline void seqcount_lockdep_read
* that the write side critical section is properly serialized.
*/
-/**
+/*
* seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
* @s: Pointer to the seqcount_LOCKNAME_t instance
* @lock: Pointer to the associated LOCKTYPE
*/
+static __always_inline void \
+seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
+{ \
+ seqcount_init(&s->seqcount); \
+ __SEQ_LOCK(s->lock = lock); \
+} \
/*
* SEQCOUNT_LOCKTYPE() - Instantiate seqcount_LOCKNAME_t and helpers
@@ -167,13 +173,6 @@ typedef struct seqcount_##lockname {
__SEQ_LOCK(locktype *lock); \
} seqcount_##lockname##_t; \
\
-static __always_inline void \
-seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
-{ \
- seqcount_init(&s->seqcount); \
- __SEQ_LOCK(s->lock = lock); \
-} \
- \
static __always_inline seqcount_t * \
__seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
{ \
@@ -218,9 +217,9 @@ SEQCOUNT_LOCKTYPE(struct mutex, mutex,
SEQCOUNT_LOCKTYPE(struct ww_mutex, ww_mutex, true, &s->lock->base)
/**
- * SEQCNT_LOCKNAME_ZERO - static initializer for seqcount_LOCKNAME_t
- * @name: Name of the seqcount_LOCKNAME_t instance
- * @lock: Pointer to the associated LOCKTYPE
+ * SEQCOUNT_LOCKTYPE_ZERO - static initializer for seqcount_LOCKNAME_t
+ * @seq_name: Name of the seqcount_LOCKNAME_t instance
+ * @assoc_lock: Pointer to the associated LOCKTYPE
*/
#define SEQCOUNT_LOCKTYPE_ZERO(seq_name, assoc_lock) { \
@@ -688,7 +687,7 @@ static inline int raw_read_seqcount_t_la
* to miss an entire modification sequence, once it resumes it might
* observe the new entry.
*
- * NOTE:
+ * NOTE2:
*
* When data is a dynamic data structure; one should use regular RCU
* patterns to manage the lifetimes of the objects within.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
2020-08-16 22:26 [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings Randy Dunlap
@ 2020-08-16 23:26 ` kernel test robot
2020-08-16 23:31 ` kernel test robot
2020-08-16 23:58 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:26 UTC (permalink / raw)
To: Randy Dunlap, linux-kernel
Cc: kbuild-all, Randy Dunlap, Peter Zijlstra, Ingo Molnar
[-- Attachment #1: Type: text/plain, Size: 4371 bytes --]
Hi Randy,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: x86_64-randconfig-s022-20200817 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-180-g49f7e13a-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/mmzone.h:16,
from include/linux/gfp.h:6,
from include/linux/slab.h:15,
from include/linux/crypto.h:20,
from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/seqlock.h:157:10: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
>> include/linux/seqlock.h:157:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'lockname'
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~~~~~~~
include/linux/seqlock.h:157:20: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
>> include/linux/seqlock.h:157:12: error: unknown type name 'lockname'
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~~~~~~~
include/linux/seqlock.h:157:37: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
include/linux/seqlock.h:157:47: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1203: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +157 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
156 static __always_inline void \
> 157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 41237 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
@ 2020-08-16 23:26 ` kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:26 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 4463 bytes --]
Hi Randy,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: x86_64-randconfig-s022-20200817 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-180-g49f7e13a-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/mmzone.h:16,
from include/linux/gfp.h:6,
from include/linux/slab.h:15,
from include/linux/crypto.h:20,
from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/seqlock.h:157:10: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
>> include/linux/seqlock.h:157:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'lockname'
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~~~~~~~
include/linux/seqlock.h:157:20: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
>> include/linux/seqlock.h:157:12: error: unknown type name 'lockname'
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~~~~~~~
include/linux/seqlock.h:157:37: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
include/linux/seqlock.h:157:47: error: stray '##' in program
157 | seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
| ^~
make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1203: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +157 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
156 static __always_inline void \
> 157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 41237 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
2020-08-16 22:26 [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings Randy Dunlap
@ 2020-08-16 23:31 ` kernel test robot
2020-08-16 23:31 ` kernel test robot
2020-08-16 23:58 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:31 UTC (permalink / raw)
To: Randy Dunlap, linux-kernel
Cc: kbuild-all, clang-built-linux, Randy Dunlap, Peter Zijlstra, Ingo Molnar
[-- Attachment #1: Type: text/plain, Size: 10706 bytes --]
Hi Randy,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: s390-randconfig-r025-20200817 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: error: 'inline' can only appear on functions
static __always_inline void \
^
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:16: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: warning: '__gnu_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:23: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_attributes.h:167:56: note: expanded from macro '__gnu_inline'
#define __gnu_inline __attribute__((__gnu_inline__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
>> include/linux/seqlock.h:156:8: warning: '__no_instrument_function__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:58: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_types.h:124:34: note: expanded from macro 'notrace'
#define notrace __attribute__((__no_instrument_function__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: warning: '__always_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:63: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:34: error: variable has incomplete type 'void'
static __always_inline void \
^
include/linux/seqlock.h:157:10: error: expected ';' after top level declarator
seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
^
;
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
^
include/linux/seqlock.h:177:29: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
^
<scratch space>:28:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:183:37: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
^
<scratch space>:32:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:189:32: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
^
<scratch space>:36:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:751:17: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:129:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:751:17: note: did you mean '__seqcount_init'?
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:129:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:71:20: note: '__seqcount_init' declared here
static inline void __seqcount_init(seqcount_t *s, const char *name,
^
include/linux/seqlock.h:751:17: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +/__no_instrument_function__ +156 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
> 156 static __always_inline void \
157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 21503 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
@ 2020-08-16 23:31 ` kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:31 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 10903 bytes --]
Hi Randy,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: s390-randconfig-r025-20200817 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: error: 'inline' can only appear on functions
static __always_inline void \
^
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:16: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: warning: '__gnu_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:23: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_attributes.h:167:56: note: expanded from macro '__gnu_inline'
#define __gnu_inline __attribute__((__gnu_inline__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
>> include/linux/seqlock.h:156:8: warning: '__no_instrument_function__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:58: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_types.h:124:34: note: expanded from macro 'notrace'
#define notrace __attribute__((__no_instrument_function__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:8: warning: '__always_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:63: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:156:34: error: variable has incomplete type 'void'
static __always_inline void \
^
include/linux/seqlock.h:157:10: error: expected ';' after top level declarator
seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
^
;
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
^
include/linux/seqlock.h:177:29: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
^
<scratch space>:28:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:183:37: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
^
<scratch space>:32:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:189:32: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
^
<scratch space>:36:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:12:
In file included from include/linux/sched.h:20:
In file included from include/linux/hrtimer.h:20:
include/linux/seqlock.h:751:17: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:129:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:751:17: note: did you mean '__seqcount_init'?
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:129:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:71:20: note: '__seqcount_init' declared here
static inline void __seqcount_init(seqcount_t *s, const char *name,
^
include/linux/seqlock.h:751:17: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +/__no_instrument_function__ +156 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
> 156 static __always_inline void \
157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 21503 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
2020-08-16 22:26 [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings Randy Dunlap
@ 2020-08-16 23:58 ` kernel test robot
2020-08-16 23:31 ` kernel test robot
2020-08-16 23:58 ` kernel test robot
2 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:58 UTC (permalink / raw)
To: Randy Dunlap, linux-kernel
Cc: kbuild-all, clang-built-linux, Randy Dunlap, Peter Zijlstra, Ingo Molnar
[-- Attachment #1: Type: text/plain, Size: 24442 bytes --]
Hi Randy,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: x86_64-randconfig-a013-20200817 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All error/warnings (new ones prefixed by >>):
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: error: 'inline' can only appear on functions
static __always_inline void \
^
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:16: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: '__gnu_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:23: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_attributes.h:167:56: note: expanded from macro '__gnu_inline'
#define __gnu_inline __attribute__((__gnu_inline__))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: 'no_instrument_function' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:58: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
arch/x86/include/asm/linkage.h:8:32: note: expanded from macro 'notrace'
#define notrace __attribute__((no_instrument_function))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: '__always_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:63: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:34: error: variable has incomplete type 'void'
static __always_inline void \
^
>> include/linux/seqlock.h:157:10: error: expected ';' after top level declarator
seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
^
;
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
^
include/linux/seqlock.h:177:29: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
^
<scratch space>:103:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:183:37: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
^
<scratch space>:107:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:189:32: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
^
<scratch space>:111:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:751:17: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:184:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:751:17: note: did you mean '__seqcount_init'?
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:184:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:71:20: note: '__seqcount_init' declared here
static inline void __seqcount_init(seqcount_t *s, const char *name,
^
include/linux/seqlock.h:751:17: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:186:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:777:9: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
return read_seqcount_retry(&sl->seqcount, start);
^
include/linux/seqlock.h:401:24: note: expanded from macro 'read_seqcount_retry'
read_seqcount_t_retry(__seqcount_ptr(s), start)
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:210:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:777:9: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:401:24: note: expanded from macro 'read_seqcount_retry'
read_seqcount_t_retry(__seqcount_ptr(s), start)
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:212:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/linux/sched.h:20:
>> include/linux/hrtimer.h:163:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
seqcount_raw_spinlock_t seq;
^~~~~~~~~~~~~~~~~~~~~~~
seqcount_spinlock_t
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
>> include/linux/rbtree_latch.h:148:2: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:23:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
>> include/linux/rbtree_latch.h:148:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:25:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:150:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:51:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:175:2: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:75:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:175:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +/inline +156 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
> 156 static __always_inline void \
> 157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
163 /*
164 * SEQCOUNT_LOCKTYPE() - Instantiate seqcount_LOCKNAME_t and helpers
165 * @locktype: actual typename
166 * @lockname: name
167 * @preemptible: preemptibility of above locktype
168 * @lockmember: argument for lockdep_assert_held()
169 */
170 #define SEQCOUNT_LOCKTYPE(locktype, lockname, preemptible, lockmember) \
171 typedef struct seqcount_##lockname { \
172 seqcount_t seqcount; \
173 __SEQ_LOCK(locktype *lock); \
174 } seqcount_##lockname##_t; \
175 \
176 static __always_inline seqcount_t * \
177 __seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
178 { \
179 return &s->seqcount; \
180 } \
181 \
182 static __always_inline bool \
183 __seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
184 { \
185 return preemptible; \
186 } \
187 \
188 static __always_inline void \
189 __seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
190 { \
191 __SEQ_LOCK(lockdep_assert_held(lockmember)); \
192 }
193
194 /*
195 * __seqprop() for seqcount_t
196 */
197
198 static inline seqcount_t *__seqcount_ptr(seqcount_t *s)
199 {
200 return s;
201 }
202
203 static inline bool __seqcount_preemptible(seqcount_t *s)
204 {
205 return false;
206 }
207
208 static inline void __seqcount_assert(seqcount_t *s)
209 {
210 lockdep_assert_preemption_disabled();
211 }
212
> 213 SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
214 SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
215 SEQCOUNT_LOCKTYPE(rwlock_t, rwlock, false, s->lock)
216 SEQCOUNT_LOCKTYPE(struct mutex, mutex, true, s->lock)
217 SEQCOUNT_LOCKTYPE(struct ww_mutex, ww_mutex, true, &s->lock->base)
218
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 33031 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings
@ 2020-08-16 23:58 ` kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2020-08-16 23:58 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 24921 bytes --]
Hi Randy,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.9-rc1 next-20200814]
[cannot apply to tip/locking/core linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
config: x86_64-randconfig-a013-20200817 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All error/warnings (new ones prefixed by >>):
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: error: 'inline' can only appear on functions
static __always_inline void \
^
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:16: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: '__gnu_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:23: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
include/linux/compiler_attributes.h:167:56: note: expanded from macro '__gnu_inline'
#define __gnu_inline __attribute__((__gnu_inline__))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: 'no_instrument_function' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:41: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
include/linux/compiler_types.h:144:58: note: expanded from macro 'inline'
#define inline inline __gnu_inline __inline_maybe_unused notrace
^
arch/x86/include/asm/linkage.h:8:32: note: expanded from macro 'notrace'
#define notrace __attribute__((no_instrument_function))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:8: warning: '__always_inline__' attribute only applies to functions [-Wignored-attributes]
include/linux/compiler_attributes.h:70:63: note: expanded from macro '__always_inline'
#define __always_inline inline __attribute__((__always_inline__))
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:156:34: error: variable has incomplete type 'void'
static __always_inline void \
^
>> include/linux/seqlock.h:157:10: error: expected ';' after top level declarator
seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
^
;
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
^
include/linux/seqlock.h:177:29: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
^
<scratch space>:103:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:183:37: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
^
<scratch space>:107:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:213:1: error: unknown type name 'seqcount_raw_spinlock_t'
include/linux/seqlock.h:189:32: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
__seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
^
<scratch space>:111:1: note: expanded from here
seqcount_raw_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
>> include/linux/seqlock.h:751:17: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:184:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:751:17: note: did you mean '__seqcount_init'?
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:184:1: note: expanded from here
__seqcount_ptr
^
include/linux/seqlock.h:71:20: note: '__seqcount_init' declared here
static inline void __seqcount_init(seqcount_t *s, const char *name,
^
include/linux/seqlock.h:751:17: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
unsigned ret = read_seqcount_begin(&sl->seqcount);
^
include/linux/seqlock.h:306:24: note: expanded from macro 'read_seqcount_begin'
read_seqcount_t_begin(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:186:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:777:9: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
return read_seqcount_retry(&sl->seqcount, start);
^
include/linux/seqlock.h:401:24: note: expanded from macro 'read_seqcount_retry'
read_seqcount_t_retry(__seqcount_ptr(s), start)
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:210:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:16:
include/linux/seqlock.h:777:9: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:401:24: note: expanded from macro 'read_seqcount_retry'
read_seqcount_t_retry(__seqcount_ptr(s), start)
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:212:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:10:
In file included from include/linux/sched.h:20:
>> include/linux/hrtimer.h:163:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
seqcount_raw_spinlock_t seq;
^~~~~~~~~~~~~~~~~~~~~~~
seqcount_spinlock_t
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
>> include/linux/rbtree_latch.h:148:2: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:23:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
>> include/linux/rbtree_latch.h:148:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:25:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:150:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
include/linux/seqlock.h:238:2: note: expanded from macro '__seqprop_case'
seqcount_##lockname##_t: __seqcount_##lockname##_##prop((void *)(s))
^
<scratch space>:51:1: note: expanded from here
seqcount_raw_spinlock_t
^
include/linux/seqlock.h:214:1: note: 'seqcount_spinlock_t' declared here
SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
^
include/linux/seqlock.h:174:3: note: expanded from macro 'SEQCOUNT_LOCKTYPE'
} seqcount_##lockname##_t; \
^
<scratch space>:114:1: note: expanded from here
seqcount_spinlock_t
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:175:2: error: implicit declaration of function '__seqcount_ptr' [-Werror,-Wimplicit-function-declaration]
raw_write_seqcount_latch(&root->seq);
^
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:241:15: note: expanded from macro '__seqprop'
seqcount_t: __seqcount_##prop((void *)(s)), \
^
<scratch space>:75:1: note: expanded from here
__seqcount_ptr
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:28:
In file included from include/linux/cgroup-defs.h:22:
In file included from include/linux/bpf-cgroup.h:5:
In file included from include/linux/bpf.h:13:
include/linux/rbtree_latch.h:175:2: error: unknown type name 'seqcount_raw_spinlock_t'; did you mean 'seqcount_spinlock_t'?
include/linux/seqlock.h:696:29: note: expanded from macro 'raw_write_seqcount_latch'
raw_write_seqcount_t_latch(__seqcount_ptr(s))
^
include/linux/seqlock.h:248:28: note: expanded from macro '__seqcount_ptr'
#define __seqcount_ptr(s) __seqprop(s, ptr)
^
include/linux/seqlock.h:242:2: note: expanded from macro '__seqprop'
__seqprop_case((s), raw_spinlock, prop), \
^
# https://github.com/0day-ci/linux/commit/360da27b2632939e5188f48d211b8a39cfdb8cde
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Randy-Dunlap/seqlock-linux-seqlock-h-fix-multiple-kernel-doc-warnings/20200817-062836
git checkout 360da27b2632939e5188f48d211b8a39cfdb8cde
vim +/inline +156 include/linux/seqlock.h
139
140 /**
141 * typedef seqcount_LOCKNAME_t - sequence counter with LOCKTYPE associated
142 * @seqcount: The real sequence counter
143 * @lock: Pointer to the associated spinlock
144 *
145 * A plain sequence counter with external writer synchronization by a
146 * spinlock. The spinlock is associated to the sequence count in the
147 * static initializer or init function. This enables lockdep to validate
148 * that the write side critical section is properly serialized.
149 */
150
151 /*
152 * seqcount_LOCKNAME_init() - runtime initializer for seqcount_LOCKNAME_t
153 * @s: Pointer to the seqcount_LOCKNAME_t instance
154 * @lock: Pointer to the associated LOCKTYPE
155 */
> 156 static __always_inline void \
> 157 seqcount_##lockname##_init(seqcount_##lockname##_t *s, locktype *lock) \
158 { \
159 seqcount_init(&s->seqcount); \
160 __SEQ_LOCK(s->lock = lock); \
161 } \
162
163 /*
164 * SEQCOUNT_LOCKTYPE() - Instantiate seqcount_LOCKNAME_t and helpers
165 * @locktype: actual typename
166 * @lockname: name
167 * @preemptible: preemptibility of above locktype
168 * @lockmember: argument for lockdep_assert_held()
169 */
170 #define SEQCOUNT_LOCKTYPE(locktype, lockname, preemptible, lockmember) \
171 typedef struct seqcount_##lockname { \
172 seqcount_t seqcount; \
173 __SEQ_LOCK(locktype *lock); \
174 } seqcount_##lockname##_t; \
175 \
176 static __always_inline seqcount_t * \
177 __seqcount_##lockname##_ptr(seqcount_##lockname##_t *s) \
178 { \
179 return &s->seqcount; \
180 } \
181 \
182 static __always_inline bool \
183 __seqcount_##lockname##_preemptible(seqcount_##lockname##_t *s) \
184 { \
185 return preemptible; \
186 } \
187 \
188 static __always_inline void \
189 __seqcount_##lockname##_assert(seqcount_##lockname##_t *s) \
190 { \
191 __SEQ_LOCK(lockdep_assert_held(lockmember)); \
192 }
193
194 /*
195 * __seqprop() for seqcount_t
196 */
197
198 static inline seqcount_t *__seqcount_ptr(seqcount_t *s)
199 {
200 return s;
201 }
202
203 static inline bool __seqcount_preemptible(seqcount_t *s)
204 {
205 return false;
206 }
207
208 static inline void __seqcount_assert(seqcount_t *s)
209 {
210 lockdep_assert_preemption_disabled();
211 }
212
> 213 SEQCOUNT_LOCKTYPE(raw_spinlock_t, raw_spinlock, false, s->lock)
214 SEQCOUNT_LOCKTYPE(spinlock_t, spinlock, false, s->lock)
215 SEQCOUNT_LOCKTYPE(rwlock_t, rwlock, false, s->lock)
216 SEQCOUNT_LOCKTYPE(struct mutex, mutex, true, s->lock)
217 SEQCOUNT_LOCKTYPE(struct ww_mutex, ww_mutex, true, &s->lock->base)
218
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2020-08-16 22:26 [PATCH] seqlock: <linux/seqlock.h>: fix multiple kernel-doc warnings Randy Dunlap
2020-08-16 23:26 ` kernel test robot
2020-08-16 23:26 ` kernel test robot
2020-08-16 23:31 ` kernel test robot
2020-08-16 23:31 ` kernel test robot
2020-08-16 23:58 ` kernel test robot
2020-08-16 23:58 ` kernel test robot
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