From: kernel test robot <lkp@intel.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
Linux Memory Management List <linux-mm@kvack.org>,
linux-media@vger.kernel.org
Subject: [linux-next:master 12076/13576] drivers/media/platform/marvell/mmp-driver.c:364:34: warning: unused variable 'mmpcam_of_match'
Date: Sat, 19 Mar 2022 20:47:51 +0800 [thread overview]
Message-ID: <202203192050.5iAePWkE-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 6d72dda014a4753974eb08950089ddf71fec4f60
commit: 92238532acb07be282c0276c33e01eb836e0953a [12076/13576] media: platform: rename marvell-ccic/ to marvell/
config: s390-randconfig-r002-20220319 (https://download.01.org/0day-ci/archive/20220319/202203192050.5iAePWkE-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 217f267efe3082438e698e2f08566b9df8c530fa)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=92238532acb07be282c0276c33e01eb836e0953a
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 92238532acb07be282c0276c33e01eb836e0953a
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/media/platform/marvell/
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 >>):
In file included from drivers/media/platform/marvell/mmp-driver.c:17:
In file included from include/media/v4l2-device.h:13:
In file included from include/media/v4l2-subdev.h:15:
In file included from include/media/v4l2-common.h:270:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/media/platform/marvell/mmp-driver.c:17:
In file included from include/media/v4l2-device.h:13:
In file included from include/media/v4l2-subdev.h:15:
In file included from include/media/v4l2-common.h:270:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/media/platform/marvell/mmp-driver.c:17:
In file included from include/media/v4l2-device.h:13:
In file included from include/media/v4l2-subdev.h:15:
In file included from include/media/v4l2-common.h:270:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/media/platform/marvell/mmp-driver.c:364:34: warning: unused variable 'mmpcam_of_match' [-Wunused-const-variable]
static const struct of_device_id mmpcam_of_match[] = {
^
13 warnings generated.
vim +/mmpcam_of_match +364 drivers/media/platform/marvell/mmp-driver.c
bb0a896e3d5083 drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-12-30 363
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 @364 static const struct of_device_id mmpcam_of_match[] = {
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 365 { .compatible = "marvell,mmp2-ccic", },
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 366 {},
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 367 };
08aac0e32fe44b drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-07-22 368 MODULE_DEVICE_TABLE(of, mmpcam_of_match);
67a8dbbc4e04cd drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-06-11 369
:::::: The code at line 364 was first introduced by commit
:::::: 83c40e6611ec1e548ece34f6940f516333abc16a media: marvell-ccic/mmp: add devicetree support
:::::: TO: Lubomir Rintel <lkundrak@v3.sk>
:::::: CC: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
reply other threads:[~2022-03-19 12:48 UTC|newest]
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