tree: https://android.googlesource.com/kernel/common android-4.19 head: b12d8a020f80c15f34bb430628d6ecdba289e72b commit: d892c9f3571faa2e691fc3a9eb6ea4f4da1d7eab [1/4] ANDROID: GKI: pwm: core: Add option to config PWM duty/period with u64 data length config: i386-randconfig-a004-20200518 (attached as .config) compiler: gcc-4.9 (Ubuntu 4.9.3-13ubuntu2) 4.9.3 reproduce: git checkout d892c9f3571faa2e691fc3a9eb6ea4f4da1d7eab # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): In file included from include/linux/dynamic_debug.h:6:0, from include/linux/printk.h:336, from include/linux/kernel.h:14, from include/linux/clk.h:16, from include/linux/mfd/stm32-lptimer.h:12, from drivers/pwm/pwm-stm32-lp.c:13: drivers/pwm/pwm-stm32-lp.c: In function 'stm32_pwm_lp_apply': else if (__builtin_types_compatible_p(typeof(*x), struct static_key_false)) ^ include/linux/dynamic_debug.h:103:2: note: in expansion of macro 'static_branch_unlikely' static_branch_unlikely(&descriptor.key.dd_key_false) ^ include/linux/dynamic_debug.h:134:6: note: in expansion of macro 'DYNAMIC_DEBUG_BRANCH' if (DYNAMIC_DEBUG_BRANCH(descriptor)) ^ include/linux/device.h:1519:2: note: in expansion of macro 'dynamic_dev_dbg' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^ drivers/pwm/pwm-stm32-lp.c:63:3: note: in expansion of macro 'dev_dbg' dev_dbg(priv->chip.dev, "Can't reach %u nsn", state->period); ^ vim +409 include/linux/jump_label.h 11276d5306b8e5 Peter Zijlstra 2015-07-24 403 11276d5306b8e5 Peter Zijlstra 2015-07-24 404 #define static_branch_unlikely(x) \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 405 ({ \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 406 bool branch; \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 407 if (__builtin_types_compatible_p(typeof(*x), struct static_key_true)) \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 408 branch = arch_static_branch_jump(&(x)->key, false); \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 @409 else if (__builtin_types_compatible_p(typeof(*x), struct static_key_false)) \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 410 branch = arch_static_branch(&(x)->key, false); \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 411 else \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 412 branch = ____wrong_branch_error(); \ 81dcf89f03204d Peter Zijlstra 2018-01-18 413 unlikely(branch); \ 11276d5306b8e5 Peter Zijlstra 2015-07-24 414 }) 11276d5306b8e5 Peter Zijlstra 2015-07-24 415 :::::: The code at line 409 was first introduced by commit :::::: 11276d5306b8e5b438a36bbff855fe792d7eaa61 locking/static_keys: Add a new static_key interface :::::: TO: Peter Zijlstra <peterz(a)infradead.org&gt; :::::: CC: Ingo Molnar <mingo(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org