From: kernel test robot <lkp@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: kbuild-all@lists.01.org,
GNU/Weeb Mailing List <gwml@vger.gnuweeb.org>,
linux-kernel@vger.kernel.org
Subject: [ammarfaizi2-block:tglx/devel/x86/amperf 7/10] arch/x86/kernel/cpu/aperfmperf.c:502:6: warning: no previous prototype for 'arch_scale_freq_tick'
Date: Wed, 20 Apr 2022 12:45:26 +0800 [thread overview]
Message-ID: <202204201220.MiahK9Vg-lkp@intel.com> (raw)
tree: https://github.com/ammarfaizi2/linux-block tglx/devel/x86/amperf
head: 9968b9bf69c36ec939d25ac6e0cc8e1d52075490
commit: 1d1a6fffce4ecc387d657ef959e5b7519098265e [7/10] x86/aperfmperf: Make parts of the frequency invariance code unconditional
config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20220420/202204201220.MiahK9Vg-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
# https://github.com/ammarfaizi2/linux-block/commit/1d1a6fffce4ecc387d657ef959e5b7519098265e
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block tglx/devel/x86/amperf
git checkout 1d1a6fffce4ecc387d657ef959e5b7519098265e
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/cpu/
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 >>):
>> arch/x86/kernel/cpu/aperfmperf.c:502:6: warning: no previous prototype for 'arch_scale_freq_tick' [-Wmissing-prototypes]
502 | void arch_scale_freq_tick(void)
| ^~~~~~~~~~~~~~~~~~~~
vim +/arch_scale_freq_tick +502 arch/x86/kernel/cpu/aperfmperf.c
a700c9188e7c84 Thomas Gleixner 2022-04-13 501
a700c9188e7c84 Thomas Gleixner 2022-04-13 @502 void arch_scale_freq_tick(void)
a700c9188e7c84 Thomas Gleixner 2022-04-13 503 {
a700c9188e7c84 Thomas Gleixner 2022-04-13 504 struct aperfmperf *s = this_cpu_ptr(&cpu_samples);
a700c9188e7c84 Thomas Gleixner 2022-04-13 505 u64 acnt, mcnt, aperf, mperf;
a700c9188e7c84 Thomas Gleixner 2022-04-13 506
1d1a6fffce4ecc Thomas Gleixner 2022-04-13 507 if (!cpu_feature_enabled(X86_FEATURE_APERFMPERF))
a700c9188e7c84 Thomas Gleixner 2022-04-13 508 return;
a700c9188e7c84 Thomas Gleixner 2022-04-13 509
a700c9188e7c84 Thomas Gleixner 2022-04-13 510 rdmsrl(MSR_IA32_APERF, aperf);
a700c9188e7c84 Thomas Gleixner 2022-04-13 511 rdmsrl(MSR_IA32_MPERF, mperf);
a700c9188e7c84 Thomas Gleixner 2022-04-13 512 acnt = aperf - s->aperf;
a700c9188e7c84 Thomas Gleixner 2022-04-13 513 mcnt = mperf - s->mperf;
a700c9188e7c84 Thomas Gleixner 2022-04-13 514
a700c9188e7c84 Thomas Gleixner 2022-04-13 515 s->aperf = aperf;
a700c9188e7c84 Thomas Gleixner 2022-04-13 516 s->mperf = mperf;
a700c9188e7c84 Thomas Gleixner 2022-04-13 517
a700c9188e7c84 Thomas Gleixner 2022-04-13 518 scale_freq_tick(acnt, mcnt);
a700c9188e7c84 Thomas Gleixner 2022-04-13 519 }
1d1a6fffce4ecc Thomas Gleixner 2022-04-13 520
:::::: The code at line 502 was first introduced by commit
:::::: a700c9188e7c842054b480a303988ea37e111e8b x86/aperfmperf: Restructure arch_scale_freq_tick()
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
reply other threads:[~2022-04-20 4:46 UTC|newest]
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