tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8882572675c1bb1cc544f4e229a11661f1fc52e4 commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 4 weeks ago config: arm-randconfig-s031-20200717 (attached as .config) compiler: arm-linux-gnueabi-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=arm
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/xen/grant-table.c:739:15: sparse: sparse: incorrect type in
assignment (different address spaces) @@ expected void *vaddr @@ got
void [noderef] __iomem * @@
drivers/xen/grant-table.c:739:15: sparse: expected void *vaddr
drivers/xen/grant-table.c:739:15: sparse: got void [noderef] __iomem *
>> drivers/xen/grant-table.c:747:17: sparse: sparse: incorrect type in argument
>> 1 (different address spaces) @@ expected void volatile [noderef] __iomem
>> *iomem_cookie @@ got void *vaddr @@
>> drivers/xen/grant-table.c:747:17: sparse: expected void volatile
>> [noderef] __iomem *iomem_cookie
drivers/xen/grant-table.c:747:17: sparse: got void *vaddr
>> drivers/xen/grant-table.c:766:9: sparse: sparse: incorrect type in argument
>> 1 (different address spaces) @@ expected void volatile [noderef] __iomem
>> *iomem_cookie @@ got void *[addressable] [assigned] [toplevel] vaddr @@
drivers/xen/grant-table.c:766:9: sparse: expected void volatile
[noderef] __iomem *iomem_cookie
drivers/xen/grant-table.c:766:9: sparse: got void *[addressable]
[assigned] [toplevel] vaddr
vim +747 drivers/xen/grant-table.c
ad9a86121f5a374 Jeremy Fitzhardinge 2007-07-17 728
47c542050d306e5 Julien Grall 2014-01-30 729 int
gnttab_setup_auto_xlat_frames(phys_addr_t addr)
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 730 {
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 731 xen_pfn_t *pfn;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 732 unsigned int
max_nr_gframes = __max_nr_grant_frames();
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 733 unsigned int i;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 734 void *vaddr;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 735
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 736 if
(xen_auto_xlat_grant_frames.count)
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 737 return -EINVAL;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 738
5ed5451d997f7a8 Julien Grall 2015-05-05 739 vaddr = xen_remap(addr,
XEN_PAGE_SIZE * max_nr_gframes);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 740 if (vaddr == NULL) {
47c542050d306e5 Julien Grall 2014-01-30 741 pr_warn("Failed
to ioremap gnttab share frames (addr=%pa)!\n",
47c542050d306e5 Julien Grall 2014-01-30 742 &addr);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 743 return -ENOMEM;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 744 }
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 745 pfn =
kcalloc(max_nr_gframes, sizeof(pfn[0]), GFP_KERNEL);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 746 if (!pfn) {
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 @747
xen_unmap(vaddr);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 748 return -ENOMEM;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 749 }
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 750 for (i = 0; i <
max_nr_gframes; i++)
5ed5451d997f7a8 Julien Grall 2015-05-05 751 pfn[i] =
XEN_PFN_DOWN(addr) + i;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 752
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 753
xen_auto_xlat_grant_frames.vaddr = vaddr;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 754
xen_auto_xlat_grant_frames.pfn = pfn;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 755
xen_auto_xlat_grant_frames.count = max_nr_gframes;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 756
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 757 return 0;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 758 }
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 759
EXPORT_SYMBOL_GPL(gnttab_setup_auto_xlat_frames);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 760
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 761 void
gnttab_free_auto_xlat_frames(void)
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 762 {
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 763 if
(!xen_auto_xlat_grant_frames.count)
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 764 return;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 765
kfree(xen_auto_xlat_grant_frames.pfn);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 @766
xen_unmap(xen_auto_xlat_grant_frames.vaddr);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 767
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 768
xen_auto_xlat_grant_frames.pfn = NULL;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 769
xen_auto_xlat_grant_frames.count = 0;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 770
xen_auto_xlat_grant_frames.vaddr = NULL;
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 771 }
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 772
EXPORT_SYMBOL_GPL(gnttab_free_auto_xlat_frames);
efaf30a3357872c Konrad Rzeszutek Wilk 2014-01-06 773
:::::: The code at line 747 was first introduced by commit
:::::: efaf30a3357872cf0fc7d555b1f9968ec71535d3 xen/grant: Implement an grant
frame array struct (v3).
:::::: TO: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
:::::: CC: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
