From: kernel test robot <lkp@intel.com>
To: Niklas Schnelle <schnelle@linux.ibm.com>, Arnd Bergmann <arnd@arndb.de>
Cc: kbuild-all@lists.01.org, Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
clang-built-linux@googlegroups.com, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH v2 2/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE
Date: Fri, 16 Apr 2021 00:26:34 +0800 [thread overview]
Message-ID: <202104160037.9HvRPdCd-lkp@intel.com> (raw)
In-Reply-To: <20210415123700.3030728-3-schnelle@linux.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 2829 bytes --]
Hi Niklas,
I love your patch! Yet something to improve:
[auto build test ERROR on soc/for-next]
[also build test ERROR on sparc/master asm-generic/master v5.12-rc7 next-20210415]
[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]
url: https://github.com/0day-ci/linux/commits/Niklas-Schnelle/asm-generic-io-h-Silence-Wnull-pointer-arithmetic-warning-on-PCI_IOBASE/20210415-203919
base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
config: arc-randconfig-s031-20210415 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-280-g2cd6d34e-dirty
# https://github.com/0day-ci/linux/commit/f0394115b166f960f12fc7bc48362d0d19f67883
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Niklas-Schnelle/asm-generic-io-h-Silence-Wnull-pointer-arithmetic-warning-on-PCI_IOBASE/20210415-203919
git checkout f0394115b166f960f12fc7bc48362d0d19f67883
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/arc/include/asm/io.h:233,
from drivers/w1/w1_io.c:6:
include/asm-generic/io.h: In function '_inb':
>> include/asm-generic/io.h:465:2: error: implicit declaration of function 'WARN_ONCE' [-Werror=implicit-function-declaration]
465 | WARN_ONCE(1, "No I/O port support\n");
| ^~~~~~~~~
cc1: some warnings being treated as errors
vim +/WARN_ONCE +465 include/asm-generic/io.h
446
447 /*
448 * {in,out}{b,w,l}() access little endian I/O. {in,out}{b,w,l}_p() can be
449 * implemented on hardware that needs an additional delay for I/O accesses to
450 * take effect.
451 */
452
453 #if !defined(inb) && !defined(_inb)
454 #define _inb _inb
455 static inline u8 _inb(unsigned long addr)
456 {
457 #ifdef PCI_IOBASE
458 u8 val;
459
460 __io_pbr();
461 val = __raw_readb(PCI_IOBASE + addr);
462 __io_par(val);
463 return val;
464 #else
> 465 WARN_ONCE(1, "No I/O port support\n");
466 return ~0;
467 #endif
468 }
469 #endif
470
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH v2 2/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE
Date: Fri, 16 Apr 2021 00:26:34 +0800 [thread overview]
Message-ID: <202104160037.9HvRPdCd-lkp@intel.com> (raw)
In-Reply-To: <20210415123700.3030728-3-schnelle@linux.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 2902 bytes --]
Hi Niklas,
I love your patch! Yet something to improve:
[auto build test ERROR on soc/for-next]
[also build test ERROR on sparc/master asm-generic/master v5.12-rc7 next-20210415]
[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]
url: https://github.com/0day-ci/linux/commits/Niklas-Schnelle/asm-generic-io-h-Silence-Wnull-pointer-arithmetic-warning-on-PCI_IOBASE/20210415-203919
base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
config: arc-randconfig-s031-20210415 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-280-g2cd6d34e-dirty
# https://github.com/0day-ci/linux/commit/f0394115b166f960f12fc7bc48362d0d19f67883
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Niklas-Schnelle/asm-generic-io-h-Silence-Wnull-pointer-arithmetic-warning-on-PCI_IOBASE/20210415-203919
git checkout f0394115b166f960f12fc7bc48362d0d19f67883
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/arc/include/asm/io.h:233,
from drivers/w1/w1_io.c:6:
include/asm-generic/io.h: In function '_inb':
>> include/asm-generic/io.h:465:2: error: implicit declaration of function 'WARN_ONCE' [-Werror=implicit-function-declaration]
465 | WARN_ONCE(1, "No I/O port support\n");
| ^~~~~~~~~
cc1: some warnings being treated as errors
vim +/WARN_ONCE +465 include/asm-generic/io.h
446
447 /*
448 * {in,out}{b,w,l}() access little endian I/O. {in,out}{b,w,l}_p() can be
449 * implemented on hardware that needs an additional delay for I/O accesses to
450 * take effect.
451 */
452
453 #if !defined(inb) && !defined(_inb)
454 #define _inb _inb
455 static inline u8 _inb(unsigned long addr)
456 {
457 #ifdef PCI_IOBASE
458 u8 val;
459
460 __io_pbr();
461 val = __raw_readb(PCI_IOBASE + addr);
462 __io_par(val);
463 return val;
464 #else
> 465 WARN_ONCE(1, "No I/O port support\n");
466 return ~0;
467 #endif
468 }
469 #endif
470
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next prev parent reply other threads:[~2021-04-15 16:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 12:36 [PATCH v2 0/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Niklas Schnelle
2021-04-15 12:36 ` [PATCH v2 1/2] sparc: explicitly set PCI_IOBASE to 0 Niklas Schnelle
2021-04-15 16:10 ` David Laight
2021-04-15 12:37 ` [PATCH v2 2/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Niklas Schnelle
2021-04-15 15:45 ` kernel test robot
2021-04-15 15:45 ` kernel test robot
2021-04-15 16:26 ` kernel test robot [this message]
2021-04-15 16:26 ` kernel test robot
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