[kbuild-all] drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h:588:21: sparse: sparse: cast removes address space '__iomem' of expression

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 28183dbf54edba614a90ceb6a1e9464b27845309 commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*() date: 2 weeks ago config: s390-randconfig-s032-20210517 (attached as .config) compiler: s390-linux-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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout d991bb1c8da842a2a0b9dc83b1005e655783f861 # 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=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c:26:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c:29:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c:39:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c:42:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c:720:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c: note: in included file (through arch/s390/include/asm/io.h, include/linux/io.h, include/linux/pci.h): include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 include/asm-generic/io.h:236:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] val @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:236:22: sparse: expected unsigned long long [usertype] val include/asm-generic/io.h:236:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:236:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] val @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:236:22: sparse: expected unsigned long long [usertype] val include/asm-generic/io.h:236:22: sparse: got restricted __le64 [usertype] include/asm-generic/io.h:236:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] val @@ got restricted __le64 [usertype] @@ include/asm-generic/io.h:236:22: sparse: expected unsigned long long [usertype] val include/asm-generic/io.h:236:22: sparse: got restricted __le64 [usertype] drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c: note: in included file: drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c: note: in included file (through arch/s390/include/asm/io.h, include/linux/io.h, include/linux/pci.h): include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64 vim +/__iomem +588 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h 4c236d5dc8b862 Geetha sowjanya 2021-02-11 584 caa2da34fd25a3 Sunil Goutham 2020-01-27 585 /* Alloc pointer from pool/aura */ caa2da34fd25a3 Sunil Goutham 2020-01-27 586 static inline u64 otx2_aura_allocptr(struct otx2_nic *pfvf, int aura) caa2da34fd25a3 Sunil Goutham 2020-01-27 587 { caa2da34fd25a3 Sunil Goutham 2020-01-27 @588 u64 *ptr = (u64 *)otx2_get_regaddr(pfvf, caa2da34fd25a3 Sunil Goutham 2020-01-27 589 NPA_LF_AURA_OP_ALLOCX(0)); caa2da34fd25a3 Sunil Goutham 2020-01-27 590 u64 incr = (u64)aura | BIT_ULL(63); caa2da34fd25a3 Sunil Goutham 2020-01-27 591 caa2da34fd25a3 Sunil Goutham 2020-01-27 592 return otx2_atomic64_add(incr, ptr); caa2da34fd25a3 Sunil Goutham 2020-01-27 593 } caa2da34fd25a3 Sunil Goutham 2020-01-27 594 :::::: The code at line 588 was first introduced by commit :::::: caa2da34fd25a37e9fd43343b6966fb9d730a6d5 octeontx2-pf: Initialize and config queues :::::: TO: Sunil Goutham <sgoutham(a)marvell.com&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org