lkml.org 
[lkml]   [2020]   [Nov]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [kbuild-all] Re: drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe'
From
Date


On 11/23/20 10:15 PM, Andrey Konovalov wrote:
> On Thu, Nov 19, 2020 at 11:16 PM kernel test robot <lkp@intel.com> wrote:
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head: 3494d58865ad4a47611dbb427b214cc5227fa5eb
>> commit: cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4 kasan: allow enabling stack tagging for tag-based mode
>> date: 3 months ago
>> config: arm64-randconfig-r002-20201119 (attached as .config)
>> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b2613fb2f0f53691dd0211895afbb9413457fca7)
>> reproduce (this is a W=1 build):
>> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>> chmod +x ~/bin/make.cross
>> # install arm64 cross compiling tool for clang build
>> # apt-get install binutils-aarch64-linux-gnu
>> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
>> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> git fetch --no-tags linus master
>> git checkout cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4
>> # save the attached .config to linux build tree
>> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
>>
>> 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 >>):
>>
>>>> drivers/net/wan/slic_ds26522.c:205:12: warning: stack frame size of 12288 bytes in function 'slic_ds26522_probe' [-Wframe-larger-than=]
>> static int slic_ds26522_probe(struct spi_device *spi)
>> ^
>> 1 warning generated.
>> --
>>>> drivers/gpu/drm/panel/panel-sitronix-st7789v.c:194:12: warning: stack frame size of 18352 bytes in function 'st7789v_prepare' [-Wframe-larger-than=]
>> static int st7789v_prepare(struct drm_panel *panel)
>> ^
>> 1 warning generated.
> Same issue as reported previously. Copying my response from the other
> email just in case:
>
> This is the same issue in LLVM that was reported by Arnd for generic
> KASAN (also see KASAN_STACK_ENABLE option description). By default
> KASAN shouldn't have stack instrumentation enabled unless
> KASAN_STACK_ENABLE is specified. Perhaps it makes sense to disable it
> for KASAN_SW_TAGS config on the kernel test robot.
>
> [1] https://bugs.llvm.org/show_bug.cgi?id=38809

Hi Andrey,

Thanks for the explanation, we'll disable CONFIG_KASAN_SW_TAGS.

Best Regards,
Rong Chen

\
 
 \ /
  Last update: 2020-11-24 09:04    [W:0.101 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site