2:13 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4ebf8d7649cd86c41c41bf48da4b7761da2d5009
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address
spaces
date: 4 weeks ago
config: x86_64-randconfig-s021-20200718 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-49-g707c5017-dirty
git checkout 670d0a4b10704667765f7d18f7592993d02783aa
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> drivers/edac/i10nm_base.c:149:19: sparse: sparse: cast removes
address space '__iomem' of expression
drivers/edac/i10nm_base.c:170:31:
sparse: sparse: cast removes address space '__iomem' of expression
drivers/edac/i10nm_base.c:171:37: sparse: sparse: cast removes address space
'__iomem' of expression
vim +/__iomem +149 drivers/edac/i10nm_base.c
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 144
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 145 static bool i10nm_check_ecc(struct skx_imc
*imc, int chan)
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 146 {
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 147 u32 mcmtr;
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 148
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 @149 mcmtr = *(u32 *)(imc->mbase + 0x20ef8 +
chan * 0x4000);
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 150 edac_dbg(1, "ch%d mcmtr reg %x\n",
chan, mcmtr);
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 151
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 152 return !!GET_BITFIELD(mcmtr, 2, 2);
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 153 }
d4dc89d069aab9 Qiuxu Zhuo 2019-01-30 154
:::::: The code at line 149 was first introduced by commit
:::::: d4dc89d069aab9074e2493a4c2f3969a0a0b91c1 EDAC, i10nm: Add a driver for Intel 10nm
server processors
:::::: TO: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com>
:::::: CC: Borislav Petkov <bp(a)suse.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org