[dm-devel] [dm:for-next 18/27] drivers//md/dm-cache-target.c:1441:19: error: 'ws' undeclared
Mike Snitzer
snitzer at redhat.com
Fri Nov 10 20:31:18 UTC 2017
Fixed (my fault!)
On Fri, Nov 10 2017 at 3:03pm -0500,
kbuild test robot <fengguang.wu at intel.com> wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
> head: b93f980e5c9e057254d694c388daef774e717729
> commit: 10d807b74cef508e163e7ae622321f5d6ae866df [18/27] dm cache: fix race condition in the writeback mode overwrite_bio optimisation
> config: i386-randconfig-x019-201745 (attached as .config)
> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
> reproduce:
> git checkout 10d807b74cef508e163e7ae622321f5d6ae866df
> # save the attached .config to linux build tree
> make ARCH=i386
>
> All errors (new ones prefixed by >>):
>
> drivers//md/dm-cache-target.c: In function 'mg_full_copy':
> >> drivers//md/dm-cache-target.c:1441:19: error: 'ws' undeclared (first use in this function)
> mg_upgrade_lock(ws);
> ^~
> drivers//md/dm-cache-target.c:1441:19: note: each undeclared identifier is reported only once for each function it appears in
> In file included from include/linux/linkage.h:4:0,
> from include/linux/fs.h:4,
> from drivers//md/dm.h:13,
> from drivers//md/dm-cache-target.c:7:
> drivers//md/dm-cache-target.c: At top level:
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'strcpy' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:421:2: note: in expansion of macro 'if'
> if (p_size == (size_t)-1 && q_size == (size_t)-1)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:411:2: note: in expansion of macro 'if'
> if (p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:409:2: note: in expansion of macro 'if'
> if (__builtin_constant_p(size) && p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:400:2: note: in expansion of macro 'if'
> if (p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:398:2: note: in expansion of macro 'if'
> if (__builtin_constant_p(size) && p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:389:2: note: in expansion of macro 'if'
> if (p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:387:2: note: in expansion of macro 'if'
> if (__builtin_constant_p(size) && p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:379:2: note: in expansion of macro 'if'
> if (p_size < size || q_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:376:3: note: in expansion of macro 'if'
> if (q_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
> ______f = { \
> ^
> include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
> #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
> ^~~~~~~~~~
> include/linux/string.h:374:3: note: in expansion of macro 'if'
> if (p_size < size)
> ^~
> include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
> ______f = { \
>
> vim +/ws +1441 drivers//md/dm-cache-target.c
>
> c6b4fcba Joe Thornber 2013-03-01 1432
> 10d807b7 Joe Thornber 2017-11-10 1433 static void mg_full_copy(struct dm_cache_migration *mg)
> c6b4fcba Joe Thornber 2013-03-01 1434 {
> b29d4986 Joe Thornber 2016-12-15 1435 struct cache *cache = mg->cache;
> b29d4986 Joe Thornber 2016-12-15 1436 struct policy_work *op = mg->op;
> b29d4986 Joe Thornber 2016-12-15 1437 bool is_policy_promote = (op->op == POLICY_PROMOTE);
> c6b4fcba Joe Thornber 2013-03-01 1438
> b29d4986 Joe Thornber 2016-12-15 1439 if ((!is_policy_promote && !is_dirty(cache, op->cblock)) ||
> b29d4986 Joe Thornber 2016-12-15 1440 is_discarded_oblock(cache, op->oblock)) {
> b29d4986 Joe Thornber 2016-12-15 @1441 mg_upgrade_lock(ws);
> c6b4fcba Joe Thornber 2013-03-01 1442 return;
> b29d4986 Joe Thornber 2016-12-15 1443 }
> c6b4fcba Joe Thornber 2013-03-01 1444
> b29d4986 Joe Thornber 2016-12-15 1445 init_continuation(&mg->k, mg_upgrade_lock);
> c6b4fcba Joe Thornber 2013-03-01 1446
> 10d807b7 Joe Thornber 2017-11-10 1447 if (copy(mg, is_policy_promote)) {
> b29d4986 Joe Thornber 2016-12-15 1448 DMERR_LIMIT("%s: migration copy failed", cache_device_name(cache));
> 4e4cbee9 Christoph Hellwig 2017-06-03 1449 mg->k.input = BLK_STS_IOERR;
> b29d4986 Joe Thornber 2016-12-15 1450 mg_complete(mg, false);
> b29d4986 Joe Thornber 2016-12-15 1451 }
> c6b4fcba Joe Thornber 2013-03-01 1452 }
> 10d807b7 Joe Thornber 2017-11-10 1453
>
> :::::: The code at line 1441 was first introduced by commit
> :::::: b29d4986d0da1a27cd35917cdb433672f5c95d7f dm cache: significant rework to leverage dm-bio-prison-v2
>
> :::::: TO: Joe Thornber <ejt at redhat.com>
> :::::: CC: Mike Snitzer <snitzer at redhat.com>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
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