tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 18250b538735142307082e4e99e3ae5c12d44013 commit: ef5a3a4c5d5d2be41ac4786a19172744bb18ecec [12765/13394] include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*() config: x86_64-randconfig-s021-20210419 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-330-g09ec74f6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... 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 ef5a3a4c5d5d2be41ac4786a19172744bb18ecec # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=x86_64 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/scsi/bfa/bfa_ioc.c:1800:28: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [assigned] [usertype] clscode @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:1800:28: sparse: expected unsigned short [assigned] [usertype] clscode drivers/scsi/bfa/bfa_ioc.c:1800:28: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:1802:29: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:1813:29: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [assigned] [usertype] clscode @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:1813:29: sparse: expected unsigned short [assigned] [usertype] clscode drivers/scsi/bfa/bfa_ioc.c:1813:29: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:1815:30: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:1780:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int val @@ got restricted __le32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:1780:24: sparse: expected unsigned int val drivers/scsi/bfa/bfa_ioc.c:1780:24: sparse: got restricted __le32 [usertype] drivers/scsi/bfa/bfa_ioc.c:1963:31: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:1964:31: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:1965:31: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:1967:27: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:2066:21: sparse: expected restricted __be32 [usertype] r32 drivers/scsi/bfa/bfa_ioc.c:2066:21: sparse: got unsigned int [usertype] drivers/scsi/bfa/bfa_ioc.c:2067:26: sparse: sparse: cast from restricted __be32 drivers/scsi/bfa/bfa_ioc.c:2989:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] clscode @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:2989:22: sparse: expected unsigned short [usertype] clscode drivers/scsi/bfa/bfa_ioc.c:2989:22: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:3265:52: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:3267:58: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:3269:59: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:3271:54: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:3273:54: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:3440:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] pers @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:3440:17: sparse: expected unsigned short [usertype] pers drivers/scsi/bfa/bfa_ioc.c:3440:17: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:3441:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] bw_min @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:3441:19: sparse: expected unsigned short [usertype] bw_min drivers/scsi/bfa/bfa_ioc.c:3441:19: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:3442:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] bw_max @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:3442:19: sparse: expected unsigned short [usertype] bw_max drivers/scsi/bfa/bfa_ioc.c:3442:19: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:3565:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] bw_min @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:3565:19: sparse: expected unsigned short [usertype] bw_min drivers/scsi/bfa/bfa_ioc.c:3565:19: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:3566:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] bw_max @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:3566:19: sparse: expected unsigned short [usertype] bw_max drivers/scsi/bfa/bfa_ioc.c:3566:19: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:4268:21: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4270:23: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4273:23: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4301:21: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4303:23: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4306:23: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4325:21: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4364:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4372:40: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4373:39: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4378:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4380:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4382:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4384:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4386:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4388:41: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4395:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4401:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4412:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4418:35: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4435:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4441:33: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:4829:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] count @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:4829:27: sparse: expected unsigned int [usertype] count drivers/scsi/bfa/bfa_ioc.c:4829:27: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:4924:36: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:4933:33: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:4979:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] freq @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:4979:19: sparse: expected unsigned short [usertype] freq drivers/scsi/bfa/bfa_ioc.c:4979:19: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:5006:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] period @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5006:21: sparse: expected unsigned int [usertype] period drivers/scsi/bfa/bfa_ioc.c:5006:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:5301:27: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5367:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] offset @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5367:21: sparse: expected unsigned int [usertype] offset drivers/scsi/bfa/bfa_ioc.c:5367:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:5370:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] length @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5370:21: sparse: expected unsigned int [usertype] length drivers/scsi/bfa/bfa_ioc.c:5370:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:5383:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] @@ got restricted __be16 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5383:24: sparse: expected unsigned short [usertype] drivers/scsi/bfa/bfa_ioc.c:5383:24: sparse: got restricted __be16 [usertype] drivers/scsi/bfa/bfa_ioc.c:5405:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] offset @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5405:21: sparse: expected unsigned int [usertype] offset drivers/scsi/bfa/bfa_ioc.c:5405:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:5408:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] length @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:5408:21: sparse: expected unsigned int [usertype] length drivers/scsi/bfa/bfa_ioc.c:5408:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:5722:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5740:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5757:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5771:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5780:35: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:5789:42: sparse: sparse: cast to restricted __be16 drivers/scsi/bfa/bfa_ioc.c:6222:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] offset @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:6222:21: sparse: expected unsigned int [usertype] offset drivers/scsi/bfa/bfa_ioc.c:6222:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:6225:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] length @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:6225:21: sparse: expected unsigned int [usertype] length drivers/scsi/bfa/bfa_ioc.c:6225:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:6256:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] offset @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:6256:21: sparse: expected unsigned int [usertype] offset drivers/scsi/bfa/bfa_ioc.c:6256:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:6259:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] length @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.c:6259:21: sparse: expected unsigned int [usertype] length drivers/scsi/bfa/bfa_ioc.c:6259:21: sparse: got restricted __be32 [usertype] drivers/scsi/bfa/bfa_ioc.c:6571:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:6591:26: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c:6600:35: sparse: sparse: cast to restricted __be32 drivers/scsi/bfa/bfa_ioc.c: note: in included file (through drivers/scsi/bfa/bfa.h, drivers/scsi/bfa/bfa_modules.h, drivers/scsi/bfa/bfad_drv.h): drivers/scsi/bfa/bfa_ioc.h:190:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] al_len @@ got restricted __be32 [usertype] @@ drivers/scsi/bfa/bfa_ioc.h:190:22: sparse: expected unsigned int [usertype] al_len drivers/scsi/bfa/bfa_ioc.h:190:22: sparse: got restricted __be32 [usertype] vim +2066 drivers/scsi/bfa/bfa_ioc.c a36c61f9025b89 Krishna Gudipati 2010-09-15 2030 5fbe25c7a66460 Jing Huang 2010-10-18 2031 /* a36c61f9025b89 Krishna Gudipati 2010-09-15 2032 * Read data from SMEM to host through PCI memmap a36c61f9025b89 Krishna Gudipati 2010-09-15 2033 * a36c61f9025b89 Krishna Gudipati 2010-09-15 2034 * @param[in] ioc memory for IOC a36c61f9025b89 Krishna Gudipati 2010-09-15 2035 * @param[in] tbuf app memory to store data from smem a36c61f9025b89 Krishna Gudipati 2010-09-15 2036 * @param[in] soff smem offset a36c61f9025b89 Krishna Gudipati 2010-09-15 2037 * @param[in] sz size of smem in bytes a36c61f9025b89 Krishna Gudipati 2010-09-15 2038 */ a36c61f9025b89 Krishna Gudipati 2010-09-15 2039 static bfa_status_t a36c61f9025b89 Krishna Gudipati 2010-09-15 2040 bfa_ioc_smem_read(struct bfa_ioc_s *ioc, void *tbuf, u32 soff, u32 sz) a36c61f9025b89 Krishna Gudipati 2010-09-15 2041 { 50444a34002811 Maggie 2010-11-29 2042 u32 pgnum, loff; 50444a34002811 Maggie 2010-11-29 2043 __be32 r32; a36c61f9025b89 Krishna Gudipati 2010-09-15 2044 int i, len; a36c61f9025b89 Krishna Gudipati 2010-09-15 2045 u32 *buf = tbuf; a36c61f9025b89 Krishna Gudipati 2010-09-15 2046 f7f73812e95077 Maggie Zhang 2010-12-09 2047 pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, soff); f7f73812e95077 Maggie Zhang 2010-12-09 2048 loff = PSS_SMEM_PGOFF(soff); a36c61f9025b89 Krishna Gudipati 2010-09-15 2049 bfa_trc(ioc, pgnum); a36c61f9025b89 Krishna Gudipati 2010-09-15 2050 bfa_trc(ioc, loff); a36c61f9025b89 Krishna Gudipati 2010-09-15 2051 bfa_trc(ioc, sz); a36c61f9025b89 Krishna Gudipati 2010-09-15 2052 a36c61f9025b89 Krishna Gudipati 2010-09-15 2053 /* a36c61f9025b89 Krishna Gudipati 2010-09-15 2054 * Hold semaphore to serialize pll init and fwtrc. a36c61f9025b89 Krishna Gudipati 2010-09-15 2055 */ a36c61f9025b89 Krishna Gudipati 2010-09-15 2056 if (BFA_FALSE == bfa_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg)) { a36c61f9025b89 Krishna Gudipati 2010-09-15 2057 bfa_trc(ioc, 0); a36c61f9025b89 Krishna Gudipati 2010-09-15 2058 return BFA_STATUS_FAILED; a36c61f9025b89 Krishna Gudipati 2010-09-15 2059 } a36c61f9025b89 Krishna Gudipati 2010-09-15 2060 5344026065f79b Jing Huang 2010-10-18 2061 writel(pgnum, ioc->ioc_regs.host_page_num_fn); a36c61f9025b89 Krishna Gudipati 2010-09-15 2062 a36c61f9025b89 Krishna Gudipati 2010-09-15 2063 len = sz/sizeof(u32); a36c61f9025b89 Krishna Gudipati 2010-09-15 2064 bfa_trc(ioc, len); a36c61f9025b89 Krishna Gudipati 2010-09-15 2065 for (i = 0; i < len; i++) { a36c61f9025b89 Krishna Gudipati 2010-09-15 @2066 r32 = bfa_mem_read(ioc->ioc_regs.smem_page_start, loff); ba1340788ff302 Vijaya Mohan Guvva 2013-05-13 2067 buf[i] = swab32(r32); a36c61f9025b89 Krishna Gudipati 2010-09-15 2068 loff += sizeof(u32); a36c61f9025b89 Krishna Gudipati 2010-09-15 2069 5fbe25c7a66460 Jing Huang 2010-10-18 2070 /* a36c61f9025b89 Krishna Gudipati 2010-09-15 2071 * handle page offset wrap around a36c61f9025b89 Krishna Gudipati 2010-09-15 2072 */ a36c61f9025b89 Krishna Gudipati 2010-09-15 2073 loff = PSS_SMEM_PGOFF(loff); a36c61f9025b89 Krishna Gudipati 2010-09-15 2074 if (loff == 0) { a36c61f9025b89 Krishna Gudipati 2010-09-15 2075 pgnum++; 5344026065f79b Jing Huang 2010-10-18 2076 writel(pgnum, ioc->ioc_regs.host_page_num_fn); a36c61f9025b89 Krishna Gudipati 2010-09-15 2077 } a36c61f9025b89 Krishna Gudipati 2010-09-15 2078 } f7f73812e95077 Maggie Zhang 2010-12-09 2079 writel(PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, 0), f7f73812e95077 Maggie Zhang 2010-12-09 2080 ioc->ioc_regs.host_page_num_fn); a36c61f9025b89 Krishna Gudipati 2010-09-15 2081 /* a36c61f9025b89 Krishna Gudipati 2010-09-15 2082 * release semaphore. a36c61f9025b89 Krishna Gudipati 2010-09-15 2083 */ 5a0adaedffce91 Krishna Gudipati 2011-06-24 2084 readl(ioc->ioc_regs.ioc_init_sem_reg); f7f73812e95077 Maggie Zhang 2010-12-09 2085 writel(1, ioc->ioc_regs.ioc_init_sem_reg); a36c61f9025b89 Krishna Gudipati 2010-09-15 2086 a36c61f9025b89 Krishna Gudipati 2010-09-15 2087 bfa_trc(ioc, pgnum); a36c61f9025b89 Krishna Gudipati 2010-09-15 2088 return BFA_STATUS_OK; a36c61f9025b89 Krishna Gudipati 2010-09-15 2089 } a36c61f9025b89 Krishna Gudipati 2010-09-15 2090 :::::: The code at line 2066 was first introduced by commit :::::: a36c61f9025b8924f99f54d518763bee7aa84085 [SCSI] bfa: cleanup driver :::::: TO: Krishna Gudipati <kgudipat(a)brocade.com&gt; :::::: CC: James Bottomley <James.Bottomley(a)suse.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org