Messages in this thread | | | Date | Sun, 3 Jan 2021 03:55:31 +0800 | From | kernel test robot <> | Subject | drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: eda809aef53426d044b519405d25d9da55319b76 commit: 2aba2f2a704d368583e832555b25d88265e62b6d mtd: physmap_of: add a hook for Intel IXP4xx flash probing date: 1 year, 2 months ago config: arm-randconfig-s031-20210103 (attached as .config) compiler: arm-linux-gnueabi-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: v0.6.3-184-g1b896707-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2aba2f2a704d368583e832555b25d88265e62b6d git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 2aba2f2a704d368583e832555b25d88265e62b6d # 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__' ARCH=arm
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
"sparse warnings: (new ones prefixed by >>)" >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 >> drivers/mtd/maps/physmap-ixp4xx.c:42:16: sparse: sparse: cast to restricted __be16 drivers/mtd/maps/physmap-ixp4xx.c:47:9: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short volatile @@ got restricted __be16 [usertype] @@ drivers/mtd/maps/physmap-ixp4xx.c:47:9: sparse: expected unsigned short volatile drivers/mtd/maps/physmap-ixp4xx.c:47:9: sparse: got restricted __be16 [usertype]
vim +42 drivers/mtd/maps/physmap-ixp4xx.c
39 40 static inline u16 flash_read16(void __iomem *addr) 41 { > 42 return be16_to_cpu(__raw_readw((void __iomem *)((unsigned long)addr ^ 0x2))); 43 } 44
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