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> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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