Re: [PATCH-SPEAKUP 1/2] return same error value from spk_set_key_info

From: kbuild test robot
Date: Fri Feb 24 2017 - 10:24:42 EST

Hi Pranay,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.10]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Pranay-Kr-Srivastava/return-same-error-value-from-spk_set_key_info/20170222-152440
config: i386-randconfig-c0-02242210 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

In file included from include/linux/dynamic_debug.h:5:0,
from include/linux/printk.h:320,
from include/linux/kernel.h:13,
from drivers/staging/speakup/main.c:21:
drivers/staging/speakup/main.c: In function 'spk_set_key_info':
>> include/linux/jump_label.h:377:59: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=]
else if (__builtin_types_compatible_p(typeof(*x), struct static_key_false)) \
^
>> include/linux/dynamic_debug.h:102:2: note: in expansion of macro 'static_branch_unlikely'
static_branch_unlikely(&descriptor.key.dd_key_false)
^
>> include/linux/dynamic_debug.h:125:6: note: in expansion of macro 'DYNAMIC_DEBUG_BRANCH'
if (DYNAMIC_DEBUG_BRANCH(descriptor)) \
^
include/linux/printk.h:324:2: note: in expansion of macro 'dynamic_pr_debug'
dynamic_pr_debug(fmt, ##__VA_ARGS__)
^
drivers/staging/speakup/main.c:1228:3: note: in expansion of macro 'pr_debug'
pr_debug("too many key_infos (%d over %lu)\n",
^

vim +377 include/linux/jump_label.h

11276d53 Peter Zijlstra 2015-07-24 361 ({ \
11276d53 Peter Zijlstra 2015-07-24 362 bool branch; \
11276d53 Peter Zijlstra 2015-07-24 363 if (__builtin_types_compatible_p(typeof(*x), struct static_key_true)) \
11276d53 Peter Zijlstra 2015-07-24 364 branch = !arch_static_branch(&(x)->key, true); \
11276d53 Peter Zijlstra 2015-07-24 365 else if (__builtin_types_compatible_p(typeof(*x), struct static_key_false)) \
11276d53 Peter Zijlstra 2015-07-24 366 branch = !arch_static_branch_jump(&(x)->key, true); \
11276d53 Peter Zijlstra 2015-07-24 367 else \
11276d53 Peter Zijlstra 2015-07-24 368 branch = ____wrong_branch_error(); \
11276d53 Peter Zijlstra 2015-07-24 369 branch; \
11276d53 Peter Zijlstra 2015-07-24 370 })
11276d53 Peter Zijlstra 2015-07-24 371
11276d53 Peter Zijlstra 2015-07-24 372 #define static_branch_unlikely(x) \
11276d53 Peter Zijlstra 2015-07-24 373 ({ \
11276d53 Peter Zijlstra 2015-07-24 374 bool branch; \
11276d53 Peter Zijlstra 2015-07-24 375 if (__builtin_types_compatible_p(typeof(*x), struct static_key_true)) \
11276d53 Peter Zijlstra 2015-07-24 376 branch = arch_static_branch_jump(&(x)->key, false); \
11276d53 Peter Zijlstra 2015-07-24 @377 else if (__builtin_types_compatible_p(typeof(*x), struct static_key_false)) \
11276d53 Peter Zijlstra 2015-07-24 378 branch = arch_static_branch(&(x)->key, false); \
11276d53 Peter Zijlstra 2015-07-24 379 else \
11276d53 Peter Zijlstra 2015-07-24 380 branch = ____wrong_branch_error(); \
11276d53 Peter Zijlstra 2015-07-24 381 branch; \
11276d53 Peter Zijlstra 2015-07-24 382 })
11276d53 Peter Zijlstra 2015-07-24 383
11276d53 Peter Zijlstra 2015-07-24 384 #else /* !HAVE_JUMP_LABEL */
11276d53 Peter Zijlstra 2015-07-24 385

:::::: The code at line 377 was first introduced by commit
:::::: 11276d5306b8e5b438a36bbff855fe792d7eaa61 locking/static_keys: Add a new static_key interface

:::::: TO: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
:::::: CC: Ingo Molnar <mingo@xxxxxxxxxx>

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