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Message-ID: <202601232335.sf6DrrBF-lkp@intel.com>
Date: Fri, 23 Jan 2026 23:16:51 +0800
From: kernel test robot <lkp@...el.com>
To: Hamza Mahfooz <someguy@...ective-light.com>,
dri-devel@...ts.freedesktop.org
Cc: oe-kbuild-all@...ts.linux.dev,
Hamza Mahfooz <someguy@...ective-light.com>,
Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Harry Wentland <harry.wentland@....com>,
Leo Li <sunpeng.li@....com>, Rodrigo Siqueira <siqueira@...lia.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Sunil Khatri <sunil.khatri@....com>,
Lijo Lazar <lijo.lazar@....com>, Ce Sun <cesun102@....com>,
Ivan Lipski <ivan.lipski@....com>,
Kenneth Feng <kenneth.feng@....com>, Alex Hung <alex.hung@....com>,
Tom Chung <chiahsuan.chung@....com>, Melissa Wen <mwen@...lia.com>,
Michel Dänzer <mdaenzer@...hat.com>,
Fangzhi Zuo <Jerry.Zuo@....com>,
Timur Kristóf <timur.kristof@...il.com>,
amd-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] drm/amdgpu: implement page_flip_timeout() support
Hi Hamza,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on daeinki-drm-exynos/exynos-drm-next drm/drm-next drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-tip/drm-tip linus/master v6.19-rc6 next-20260122]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Hamza-Mahfooz/drm-amdgpu-implement-page_flip_timeout-support/20260123-085944
base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
patch link: https://lore.kernel.org/r/20260123000537.2450496-2-someguy%40effective-light.com
patch subject: [PATCH 2/2] drm/amdgpu: implement page_flip_timeout() support
config: i386-buildonly-randconfig-002-20260123 (https://download.01.org/0day-ci/archive/20260123/202601232335.sf6DrrBF-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260123/202601232335.sf6DrrBF-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601232335.sf6DrrBF-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/x86/include/asm/page_32.h:18,
from arch/x86/include/asm/page.h:14,
from arch/x86/include/asm/processor.h:20,
from arch/x86/include/asm/timex.h:5,
from include/linux/timex.h:67,
from include/linux/time32.h:13,
from include/linux/time.h:60,
from include/linux/jiffies.h:10,
from include/linux/ktime.h:25,
from drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h:26,
from drivers/gpu/drm/amd/amdgpu/amdgpu.h:43,
from drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h:27,
from drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c:24:
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c: In function 'amdgpu_reset_get_desc':
>> include/linux/string.h:83:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
83 | sized_strscpy(dst, src, size + __must_be_cstr(dst) + __must_be_cstr(src))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/args.h:25:24: note: in expansion of macro '__strscpy1'
25 | #define __CONCAT(a, b) a ## b
| ^
include/linux/args.h:26:27: note: in expansion of macro '__CONCAT'
26 | #define CONCATENATE(a, b) __CONCAT(a, b)
| ^~~~~~~~
include/linux/string.h:114:9: note: in expansion of macro 'CONCATENATE'
114 | CONCATENATE(__strscpy, COUNT_ARGS(__VA_ARGS__))(dst, src, __VA_ARGS__)
| ^~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c:347:17: note: in expansion of macro 'strscpy'
347 | strscpy(buf, "display hang", len);
| ^~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c:348:9: note: here
348 | default:
| ^~~~~~~
--
In file included from arch/x86/include/asm/page_32.h:18,
from arch/x86/include/asm/page.h:14,
from arch/x86/include/asm/processor.h:20,
from arch/x86/include/asm/timex.h:5,
from include/linux/timex.h:67,
from include/linux/time32.h:13,
from include/linux/time.h:60,
from include/linux/jiffies.h:10,
from include/linux/ktime.h:25,
from amdgpu_ctx.h:26,
from amdgpu.h:43,
from amdgpu_reset.h:27,
from amdgpu_reset.c:24:
amdgpu_reset.c: In function 'amdgpu_reset_get_desc':
>> include/linux/string.h:83:9: warning: this statement may fall through [-Wimplicit-fallthrough=]
83 | sized_strscpy(dst, src, size + __must_be_cstr(dst) + __must_be_cstr(src))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/args.h:25:24: note: in expansion of macro '__strscpy1'
25 | #define __CONCAT(a, b) a ## b
| ^
include/linux/args.h:26:27: note: in expansion of macro '__CONCAT'
26 | #define CONCATENATE(a, b) __CONCAT(a, b)
| ^~~~~~~~
include/linux/string.h:114:9: note: in expansion of macro 'CONCATENATE'
114 | CONCATENATE(__strscpy, COUNT_ARGS(__VA_ARGS__))(dst, src, __VA_ARGS__)
| ^~~~~~~~~~~
amdgpu_reset.c:347:17: note: in expansion of macro 'strscpy'
347 | strscpy(buf, "display hang", len);
| ^~~~~~~
amdgpu_reset.c:348:9: note: here
348 | default:
| ^~~~~~~
vim +83 include/linux/string.h
e6584c3964f2ff Kees Cook 2023-09-20 74
e6584c3964f2ff Kees Cook 2023-09-20 75 /*
e6584c3964f2ff Kees Cook 2023-09-20 76 * The 2 argument style can only be used when dst is an array with a
e6584c3964f2ff Kees Cook 2023-09-20 77 * known size.
e6584c3964f2ff Kees Cook 2023-09-20 78 */
e6584c3964f2ff Kees Cook 2023-09-20 79 #define __strscpy0(dst, src, ...) \
559048d156ff33 Kees Cook 2024-08-05 80 sized_strscpy(dst, src, sizeof(dst) + __must_be_array(dst) + \
559048d156ff33 Kees Cook 2024-08-05 81 __must_be_cstr(dst) + __must_be_cstr(src))
559048d156ff33 Kees Cook 2024-08-05 82 #define __strscpy1(dst, src, size) \
559048d156ff33 Kees Cook 2024-08-05 @83 sized_strscpy(dst, src, size + __must_be_cstr(dst) + __must_be_cstr(src))
e6584c3964f2ff Kees Cook 2023-09-20 84
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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