* Re: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
[not found] <35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx@kernel.org>
@ 2025-11-09 10:43 ` kernel test robot
2025-11-09 12:30 ` Alejandro Colomar
2025-11-09 13:14 ` kernel test robot
1 sibling, 1 reply; 3+ messages in thread
From: kernel test robot @ 2025-11-09 10:43 UTC (permalink / raw)
To: Alejandro Colomar, linux-kernel
Cc: oe-kbuild-all, Alejandro Colomar, Kees Cook, Christopher Bazley,
Rasmus Villemoes, Marco Elver, Michal Hocko, Al Viro,
Alexander Potapenko, Dmitry Vyukov, Jann Horn, Andrew Morton,
Linux Memory Management List
Hi Alejandro,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 6146a0f1dfae5d37442a9ddcba012add260bceb0]
url: https://github.com/intel-lab-lkp/linux/commits/Alejandro-Colomar/array_size-h-Add-ARRAY_END/20251109-062234
base: 6146a0f1dfae5d37442a9ddcba012add260bceb0
patch link: https://lore.kernel.org/r/35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx%40kernel.org
patch subject: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
config: alpha-defconfig (https://download.01.org/0day-ci/archive/20251109/202511091804.XUQA4dOK-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251109/202511091804.XUQA4dOK-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511091804.XUQA4dOK-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/block/floppy.c:4805:9: warning: 'ARRAY_END' redefined
4805 | #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
| ^~~~~~~~~
In file included from include/linux/string.h:6,
from include/linux/bitmap.h:13,
from include/linux/nodemask.h:91,
from include/linux/numa.h:6,
from include/linux/async.h:13,
from drivers/block/floppy.c:166:
include/linux/array_size.h:17:9: note: this is the location of the previous definition
17 | #define ARRAY_END(a) (a + ARRAY_SIZE(a))
| ^~~~~~~~~
vim +/ARRAY_END +4805 drivers/block/floppy.c
5a74db06cc8d36 Philippe De Muyter 2009-02-18 4804
5a74db06cc8d36 Philippe De Muyter 2009-02-18 @4805 #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
5a74db06cc8d36 Philippe De Muyter 2009-02-18 4806
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
2025-11-09 10:43 ` [PATCH v2 1/4] array_size.h: Add ARRAY_END() kernel test robot
@ 2025-11-09 12:30 ` Alejandro Colomar
0 siblings, 0 replies; 3+ messages in thread
From: Alejandro Colomar @ 2025-11-09 12:30 UTC (permalink / raw)
To: kernel test robot
Cc: linux-kernel, oe-kbuild-all, Kees Cook, Christopher Bazley,
Rasmus Villemoes, Marco Elver, Michal Hocko, Al Viro,
Alexander Potapenko, Dmitry Vyukov, Jann Horn, Andrew Morton,
Linux Memory Management List
[-- Attachment #1: Type: text/plain, Size: 2644 bytes --]
Hi,
On Sun, Nov 09, 2025 at 06:43:46PM +0800, kernel test robot wrote:
> Hi Alejandro,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on 6146a0f1dfae5d37442a9ddcba012add260bceb0]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Alejandro-Colomar/array_size-h-Add-ARRAY_END/20251109-062234
> base: 6146a0f1dfae5d37442a9ddcba012add260bceb0
> patch link: https://lore.kernel.org/r/35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx%40kernel.org
> patch subject: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
> config: alpha-defconfig (https://download.01.org/0day-ci/archive/20251109/202511091804.XUQA4dOK-lkp@intel.com/config)
> compiler: alpha-linux-gcc (GCC) 15.1.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251109/202511091804.XUQA4dOK-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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202511091804.XUQA4dOK-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/block/floppy.c:4805:9: warning: 'ARRAY_END' redefined
> 4805 | #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
> | ^~~~~~~~~
Hmmm, nice! There's already an ARRAY_END() there. I'll remove that
definition.
BTW, this reminds me that I forgot to parenthesize 'a' in my
implementation. Do you have any preference on the implementation?
I could use either of
(&((a)[ARRAY_SIZE(a)]))
((a) + ARRAY_SIZE(a))
Have a lovely day!
Alex
> In file included from include/linux/string.h:6,
> from include/linux/bitmap.h:13,
> from include/linux/nodemask.h:91,
> from include/linux/numa.h:6,
> from include/linux/async.h:13,
> from drivers/block/floppy.c:166:
> include/linux/array_size.h:17:9: note: this is the location of the previous definition
> 17 | #define ARRAY_END(a) (a + ARRAY_SIZE(a))
> | ^~~~~~~~~
>
>
> vim +/ARRAY_END +4805 drivers/block/floppy.c
>
> 5a74db06cc8d36 Philippe De Muyter 2009-02-18 4804
> 5a74db06cc8d36 Philippe De Muyter 2009-02-18 @4805 #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
> 5a74db06cc8d36 Philippe De Muyter 2009-02-18 4806
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
--
<https://www.alejandro-colomar.es>
Use port 80 (that is, <...:80/>).
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
[not found] <35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx@kernel.org>
2025-11-09 10:43 ` [PATCH v2 1/4] array_size.h: Add ARRAY_END() kernel test robot
@ 2025-11-09 13:14 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2025-11-09 13:14 UTC (permalink / raw)
To: Alejandro Colomar, linux-kernel
Cc: llvm, oe-kbuild-all, Alejandro Colomar, Kees Cook,
Christopher Bazley, Rasmus Villemoes, Marco Elver, Michal Hocko,
Al Viro, Alexander Potapenko, Dmitry Vyukov, Jann Horn,
Andrew Morton, Linux Memory Management List
Hi Alejandro,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 6146a0f1dfae5d37442a9ddcba012add260bceb0]
url: https://github.com/intel-lab-lkp/linux/commits/Alejandro-Colomar/array_size-h-Add-ARRAY_END/20251109-062234
base: 6146a0f1dfae5d37442a9ddcba012add260bceb0
patch link: https://lore.kernel.org/r/35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx%40kernel.org
patch subject: [PATCH v2 1/4] array_size.h: Add ARRAY_END()
config: x86_64-randconfig-001-20251109 (https://download.01.org/0day-ci/archive/20251109/202511092053.40sHnHlA-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251109/202511092053.40sHnHlA-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511092053.40sHnHlA-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/block/floppy.c:4805:9: warning: 'ARRAY_END' macro redefined [-Wmacro-redefined]
4805 | #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
| ^
include/linux/array_size.h:17:9: note: previous definition is here
17 | #define ARRAY_END(a) (a + ARRAY_SIZE(a))
| ^
1 warning generated.
vim +/ARRAY_END +4805 drivers/block/floppy.c
5a74db06cc8d36 Philippe De Muyter 2009-02-18 4804
5a74db06cc8d36 Philippe De Muyter 2009-02-18 @4805 #define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
5a74db06cc8d36 Philippe De Muyter 2009-02-18 4806
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2025-11-09 13:15 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <35255c1ceb54518779a45351dcd79a3c1910818a.1762637046.git.alx@kernel.org>
2025-11-09 10:43 ` [PATCH v2 1/4] array_size.h: Add ARRAY_END() kernel test robot
2025-11-09 12:30 ` Alejandro Colomar
2025-11-09 13:14 ` kernel test robot
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).