tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 7 weeks ago config: i386-randconfig-s002-20200809 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/char/agp/amd-k7-agp.c:46:28: sparse: sparse: incorrect type in
>> assignment (different address spaces) @@ expected unsigned long
>> [noderef] __iomem *remapped @@ got unsigned long *real @@
>> drivers/char/agp/amd-k7-agp.c:46:28: sparse: expected unsigned long
>> [noderef] __iomem *remapped
drivers/char/agp/amd-k7-agp.c:46:28: sparse: got unsigned long *real
--
>> drivers/scsi/pcmcia/nsp_cs.c:1669:34: sparse: sparse: incorrect type in
>> argument 1 (different address spaces) @@ expected void volatile
>> [noderef] __iomem *addr @@ got void * @@
>> drivers/scsi/pcmcia/nsp_cs.c:1669:34: sparse: expected void volatile
>> [noderef] __iomem *addr
drivers/scsi/pcmcia/nsp_cs.c:1669:34: sparse: got void *
drivers/scsi/pcmcia/nsp_cs.c: note: in included file:
drivers/scsi/pcmcia/nsp_io.h:231:30: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const volatile
[noderef] __iomem *addr @@ got unsigned long *ptr @@
drivers/scsi/pcmcia/nsp_io.h:231:30: sparse: expected void const
volatile [noderef] __iomem *addr
drivers/scsi/pcmcia/nsp_io.h:231:30: sparse: got unsigned long *ptr
drivers/scsi/pcmcia/nsp_io.h:257:30: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned long *ptr @@
drivers/scsi/pcmcia/nsp_io.h:257:30: sparse: expected void volatile
[noderef] __iomem *addr
drivers/scsi/pcmcia/nsp_io.h:257:30: sparse: got unsigned long *ptr
vim +46 drivers/char/agp/amd-k7-agp.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 36
^1da177e4c3f41 Linus Torvalds 2005-04-16 37 static int
amd_create_page_map(struct amd_page_map *page_map)
^1da177e4c3f41 Linus Torvalds 2005-04-16 38 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 39 int i;
^1da177e4c3f41 Linus Torvalds 2005-04-16 40
^1da177e4c3f41 Linus Torvalds 2005-04-16 41 page_map->real =
(unsigned long *) __get_free_page(GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds 2005-04-16 42 if (page_map->real ==
NULL)
^1da177e4c3f41 Linus Torvalds 2005-04-16 43 return -ENOMEM;
^1da177e4c3f41 Linus Torvalds 2005-04-16 44
44a207fc66c13c Dave Airlie 2008-02-20 45 set_memory_uc((unsigned
long)page_map->real, 1);
fcea424d31868a Arjan van dev Ven 2008-02-06 @46 page_map->remapped =
page_map->real;
^1da177e4c3f41 Linus Torvalds 2005-04-16 47
^1da177e4c3f41 Linus Torvalds 2005-04-16 48 for (i = 0; i <
PAGE_SIZE / sizeof(unsigned long); i++) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 49
writel(agp_bridge->scratch_page, page_map->remapped+i);
^1da177e4c3f41 Linus Torvalds 2005-04-16 50
readl(page_map->remapped+i); /* PCI Posting. */
^1da177e4c3f41 Linus Torvalds 2005-04-16 51 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 52
^1da177e4c3f41 Linus Torvalds 2005-04-16 53 return 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 54 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 55
:::::: The code at line 46 was first introduced by commit
:::::: fcea424d31868a78366ad5ee0cb3cc2a4cbe689b fix historic ioremap() abuse in
AGP
:::::: TO: Arjan van dev Ven <ar...@linux.intel.com>
:::::: CC: Dave Airlie <airl...@linux.ie>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
