7:19 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f71077a4d84bbe8c7b91b7db7c4ef815755ac5e3
commit: 12285ff8667bf06c168113c10d3619834e423ae6 sh: kdump: add some attribute to
function
date: 5 months ago
config: sh-randconfig-s032-20220217
(https://download.01.org/0day-ci/archive/20220217/202202171614.EFFhggHO-lk...)
compiler: sh4-linux-gcc (GCC) 11.2.0
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: v0.6.4-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 12285ff8667bf06c168113c10d3619834e423ae6
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash
arch/sh/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> arch/sh/kernel/crash_dump.c:37:61: sparse: sparse: incorrect type
in argument 2 (different address spaces) @@ expected void const *from @@ got void
[noderef] __iomem * @@
arch/sh/kernel/crash_dump.c:37:61: sparse: expected
void const *from
arch/sh/kernel/crash_dump.c:37:61: sparse: got void [noderef] __iomem *
> arch/sh/kernel/crash_dump.c:42:28: sparse: sparse: incorrect type
in argument 2 (different address spaces) @@ expected void const *__from @@ got
void [noderef] __iomem * @@
arch/sh/kernel/crash_dump.c:42:28: sparse:
expected void const *__from
arch/sh/kernel/crash_dump.c:42:28: sparse: got void [noderef] __iomem *
vim +37 arch/sh/kernel/crash_dump.c
12
13 /**
14 * copy_oldmem_page - copy one page from "oldmem"
15 * @pfn: page frame number to be copied
16 * @buf: target memory address for the copy; this can be in kernel address
17 * space or user address space (see @userbuf)
18 * @csize: number of bytes to copy
19 * @offset: offset in bytes into the page (based on pfn) to begin the copy
20 * @userbuf: if set, @buf is in user address space, use copy_to_user(),
21 * otherwise @buf is in kernel address space, use memcpy().
22 *
23 * Copy a page from "oldmem". For this page, there is no pte mapped
24 * in the current kernel. We stitch up a pte, similar to kmap_atomic.
25 */
26 ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
27 size_t csize, unsigned long offset, int userbuf)
28 {
29 void __iomem *vaddr;
30
31 if (!csize)
32 return 0;
33
34 vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE);
35
36 if (userbuf) {
37 if (copy_to_user((void __user *)buf, (vaddr + offset), csize)) {
38 iounmap(vaddr);
39 return -EFAULT;
40 }
41 } else
42 memcpy(buf, (vaddr + offset), csize);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org