Re: [kbuild-all] Re: arch/x86/kernel/cpu/mce/amd.c:552:6: warning: no previous prototype for 'disable_err_thresholding'

From: Chen, Rong A
Date: Thu Mar 31 2022 - 08:48:41 EST




On 3/30/2022 8:21 PM, Borislav Petkov wrote:
On Wed, Mar 30, 2022 at 04:45:25PM +0800, kernel test robot wrote:
Hi Shirish,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 965181d7ef7e1a863477536dc328c23a7ebc8a1d
commit: 30aa3d26edb0f3d7992757287eec0ca588a5c259 x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk
date: 3 years, 2 months ago
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220330/202203301632.RmI9R5aU-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=30aa3d26edb0f3d7992757287eec0ca588a5c259
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 30aa3d26edb0f3d7992757287eec0ca588a5c259
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/cpu/mce/ drivers/gpu/drm/i915/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

arch/x86/kernel/cpu/mce/amd.c:552:6: warning: no previous prototype for 'disable_err_thresholding' [-Wmissing-prototypes]
552 | void disable_err_thresholding(struct cpuinfo_x86 *c)
| ^~~~~~~~~~~~~~~~~~~~~~~~

I can't trigger this with gcc-9 (Debian 9.3.0-22) 9.3.0 on that commit
with your .config.

Please drop this.


Hi Boris,

Sorry about it, something goes wrong, we'll add it to the ignore list.

Best Regards,
Rong Chen