[kbuild-all] drivers/tty/serial/ip22zilog.c:114:22: sparse: sparse: incorrect type in argument 2 (different address spaces)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 07a56bb875afbe39dabbf6ba7b83783d166863db commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 4 weeks ago config: mips-randconfig-s032-20200717 (attached as .config) compiler: mips-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: v0.6.2-49-g707c5017-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # 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=mips 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/tty/serial/ip22zilog.c:114:22: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:116:25: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:125:22: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:125:22: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:125:22: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:127:24: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:127:24: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:127:24: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:138:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:138:33: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:138:33: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:144:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:144:24: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:144:24: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:148:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:148:42: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:148:42: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:170:26: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:170:26: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:170:26: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:256:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:256:29: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:256:29: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:263:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:263:42: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:263:42: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:268:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:268:29: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:268:29: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:318:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:318:25: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:318:25: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:321:30: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:321:30: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:321:30: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:361:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:361:47: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:361:47: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:390:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:390:42: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:390:42: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:408:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:408:40: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:408:40: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:421:27: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:421:27: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:421:27: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:441:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:441:44: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:441:44: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:459:27: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:464:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:464:44: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:464:44: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:546:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:580:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:586:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:586:25: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:586:25: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:597:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:597:39: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:597:39: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:608:48: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:608:48: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:608:48: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:629:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:641:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:658:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:691:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:701:27: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:715:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:722:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:722:34: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:722:34: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:782:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:896:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:995:41: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:1002:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:1002:44: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:1002:44: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:1010:21: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:1010:21: sparse: expected void volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:1010:21: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:1100:57: sparse: got char * drivers/tty/serial/ip22zilog.c:1101:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [noderef] __iomem *membase @@ got char * @@ drivers/tty/serial/ip22zilog.c:1101:57: sparse: expected unsigned char [noderef] __iomem *membase drivers/tty/serial/ip22zilog.c:1101:57: sparse: got char * drivers/tty/serial/ip22zilog.c:1205:29: sparse: got void * drivers/tty/serial/ip22zilog.c:1209:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/tty/serial/ip22zilog.c:1209:34: sparse: expected void const volatile [noderef] __iomem *addr drivers/tty/serial/ip22zilog.c:1209:34: sparse: got void * drivers/tty/serial/ip22zilog.c:494:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:495:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:495:25: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:495:25: sparse: got unsigned char volatile * drivers/tty/serial/ip22zilog.c:494:19: sparse: sparse: cast removes address space '__iomem' of expression drivers/tty/serial/ip22zilog.c:495:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got unsigned char volatile * @@ drivers/tty/serial/ip22zilog.c:495:25: sparse: expected void const volatile [noderef] __iomem *mem drivers/tty/serial/ip22zilog.c:495:25: sparse: got unsigned char volatile * vim +114 drivers/tty/serial/ip22zilog.c ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 100 ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 101 /* Reading and writing Zilog8530 registers. The delays are to make this ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 102 * driver work on the IP22 which needs a settling delay after each chip ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 103 * register access, other machines handle this in hardware via auxiliary ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 104 * flip-flops which implement the settle time we do in software. ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 105 * ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 106 * The port lock must be held and local IRQs must be disabled ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 107 * when {read,write}_zsreg is invoked. ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 108 */ ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 109 static unsigned char read_zsreg(struct zilog_channel *channel, ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 110 unsigned char reg) ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 111 { ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 112 unsigned char retval; ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 113 ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 @114 writeb(reg, &channel->control); ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 115 ZSDELAY(); ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 @116 retval = readb(&channel->control); ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 117 ZSDELAY(); ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 118 ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 119 return retval; ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 120 } ^1da177e4c3f41 drivers/serial/ip22zilog.c Linus Torvalds 2005-04-16 121 :::::: The code at line 114 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org