tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6efb943b8616ec53a5e444193dccf1af9ad627b5 commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*() date: 10 days ago config: powerpc-randconfig-s032-20210510 (attached as .config) compiler: powerpc-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/?id=d991bb1c8da842a2a0b9dc83b1005e655783f861 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=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/net/vmxnet3/vmxnet3_drv.c:228:23: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le64 [usertype] addr @@ got unsigned long long [usertype] @@ drivers/net/vmxnet3/vmxnet3_drv.c:228:23: sparse: expected restricted __le64 [usertype] addr drivers/net/vmxnet3/vmxnet3_drv.c:228:23: sparse: got unsigned long long [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:229:16: sparse: sparse: cast to restricted __le32 drivers/net/vmxnet3/vmxnet3_drv.c:230:25: sparse: sparse: cast to restricted __le32 drivers/net/vmxnet3/vmxnet3_drv.c:244:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@ drivers/net/vmxnet3/vmxnet3_drv.c:244:22: sparse: expected unsigned int [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:244:22: sparse: got restricted __le32 [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:256:24: sparse: sparse: cast to restricted __le32 drivers/net/vmxnet3/vmxnet3_drv.c:1248:43: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got restricted __be16 [usertype] @@ drivers/net/vmxnet3/vmxnet3_drv.c:1248:43: sparse: expected restricted __wsum [usertype] csum drivers/net/vmxnet3/vmxnet3_drv.c:1248:43: sparse: got restricted __be16 [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:1390:17: sparse: sparse: restricted __le64 degrades to integer drivers/net/vmxnet3/vmxnet3_drv.c:1390:17: sparse: sparse: restricted __le64 degrades to integer drivers/net/vmxnet3/vmxnet3_drv.c:1390:17: sparse: sparse: restricted __le64 degrades to integer drivers/net/vmxnet3/vmxnet3_drv.c:1661:33: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] addr @@ got restricted __le64 [usertype] addr @@ drivers/net/vmxnet3/vmxnet3_drv.c:1661:33: sparse: expected unsigned int [usertype] addr drivers/net/vmxnet3/vmxnet3_drv.c:1661:33: sparse: got restricted __le64 [usertype] addr drivers/net/vmxnet3/vmxnet3_drv.c:1667:33: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] addr @@ got restricted __le64 [usertype] addr @@ drivers/net/vmxnet3/vmxnet3_drv.c:1667:33: sparse: expected unsigned int [usertype] addr drivers/net/vmxnet3/vmxnet3_drv.c:1667:33: sparse: got restricted __le64 [usertype] addr drivers/net/vmxnet3/vmxnet3_drv.c:2289:31: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] *vfTable @@ got restricted __le32 * @@ drivers/net/vmxnet3/vmxnet3_drv.c:2289:31: sparse: expected unsigned int [usertype] *vfTable drivers/net/vmxnet3/vmxnet3_drv.c:2289:31: sparse: got restricted __le32 * drivers/net/vmxnet3/vmxnet3_drv.c:2306:39: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] *vfTable @@ got restricted __le32 * @@ drivers/net/vmxnet3/vmxnet3_drv.c:2306:39: sparse: expected unsigned int [usertype] *vfTable drivers/net/vmxnet3/vmxnet3_drv.c:2306:39: sparse: got restricted __le32 * drivers/net/vmxnet3/vmxnet3_drv.c:2328:39: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] *vfTable @@ got restricted __le32 * @@ drivers/net/vmxnet3/vmxnet3_drv.c:2328:39: sparse: expected unsigned int [usertype] *vfTable drivers/net/vmxnet3/vmxnet3_drv.c:2328:39: sparse: got restricted __le32 * drivers/net/vmxnet3/vmxnet3_drv.c:2380:39: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] *vfTable @@ got restricted __le32 * @@ drivers/net/vmxnet3/vmxnet3_drv.c:2380:39: sparse: expected unsigned int [usertype] *vfTable drivers/net/vmxnet3/vmxnet3_drv.c:2380:39: sparse: got restricted __le32 * drivers/net/vmxnet3/vmxnet3_drv.c:2426:31: sparse: sparse: restricted __le32 degrades to integer drivers/net/vmxnet3/vmxnet3_drv.c:2439:17: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned int [usertype] size @@ got restricted __le16 [usertype] mfTableLen @@ drivers/net/vmxnet3/vmxnet3_drv.c:2439:17: sparse: expected unsigned int [usertype] size drivers/net/vmxnet3/vmxnet3_drv.c:2439:17: sparse: got restricted __le16 [usertype] mfTableLen drivers/net/vmxnet3/vmxnet3_drv.c:2476:49: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@ drivers/net/vmxnet3/vmxnet3_drv.c:2476:49: sparse: expected unsigned int [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:2476:49: sparse: got restricted __le32 [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:2517:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] txDataRingDescSize @@ got restricted __le32 [usertype] @@ drivers/net/vmxnet3/vmxnet3_drv.c:2517:41: sparse: expected restricted __le16 [usertype] txDataRingDescSize drivers/net/vmxnet3/vmxnet3_drv.c:2517:41: sparse: got restricted __le32 [usertype] drivers/net/vmxnet3/vmxnet3_drv.c:2566:46: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] confVer @@ got int @@ drivers/net/vmxnet3/vmxnet3_drv.c:2566:46: sparse: expected restricted __le32 [usertype] confVer drivers/net/vmxnet3/vmxnet3_drv.c:2566:46: sparse: got int drivers/net/vmxnet3/vmxnet3_drv.c:2603:34: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] confVer @@ got int @@ drivers/net/vmxnet3/vmxnet3_drv.c:2603:34: sparse: expected restricted __le32 [usertype] confVer drivers/net/vmxnet3/vmxnet3_drv.c:2603:34: sparse: got int vim +228 drivers/net/vmxnet3/vmxnet3_drv.c d1a890fa37f27d Shreyas Bhatewara 2009-10-13 209 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 210 #ifdef __BIG_ENDIAN_BITFIELD 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 211 /* 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 212 * The device expects the bitfields in shared structures to be written in 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 213 * little endian. When CPU is big endian, the following routines are used to 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 214 * correctly read and write into ABI. 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 215 * The general technique used here is : double word bitfields are defined in 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 216 * opposite order for big endian architecture. Then before reading them in 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 217 * driver the complete double word is translated using le32_to_cpu. Similarly 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 218 * After the driver writes into bitfields, cpu_to_le32 is used to translate the 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 219 * double words into required format. 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 220 * In order to avoid touching bits in shared structure more than once, temporary 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 221 * descriptors are used. These are passed as srcDesc to following functions. 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 222 */ 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 223 static void vmxnet3_RxDescToCPU(const struct Vmxnet3_RxDesc *srcDesc, 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 224 struct Vmxnet3_RxDesc *dstDesc) 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 225 { 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 226 u32 *src = (u32 *)srcDesc + 2; 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 227 u32 *dst = (u32 *)dstDesc + 2; 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 @228 dstDesc->addr = le64_to_cpu(srcDesc->addr); 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 229 *dst = le32_to_cpu(*src); 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 230 dstDesc->ext1 = le32_to_cpu(srcDesc->ext1); 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 231 } 115924b6bdc7cc Shreyas Bhatewara 2009-11-16 232 :::::: The code at line 228 was first introduced by commit :::::: 115924b6bdc7cc6bf7da5b933b09281e1f4e17a9 net: Getting rid of the x86 dependency to built vmxnet3 :::::: TO: Shreyas Bhatewara <sbhatewara@xxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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