diff options
| author | Borislav Petkov <bp@suse.de> | 2018-10-08 10:05:20 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-10-09 11:57:28 +0200 |
| commit | cf089611f4c446285046fcd426d90c18f37d2905 (patch) | |
| tree | c5ed14d111dfe1a8455f842c683ccc34b593a513 /fs/proc | |
| parent | x86/mm/doc: Enhance the x86-64 virtual memory layout descriptions (diff) | |
| download | linux-cf089611f4c446285046fcd426d90c18f37d2905.tar.xz linux-cf089611f4c446285046fcd426d90c18f37d2905.zip | |
proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()
Lianbo reported a build error with a particular 32-bit config, see Link
below for details.
Provide a weak copy_oldmem_page_encrypted() function which architectures
can override, in the same manner other functionality in that file is
supplied.
Reported-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: x86@kernel.org
Link: http://lkml.kernel.org/r/710b9d95-2f70-eadf-c4a1-c3dc80ee4ebb@redhat.com
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/vmcore.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 42c32d06f7da..91ae16fbd7d5 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -188,6 +188,16 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma, } /* + * Architectures which support memory encryption override this. + */ +ssize_t __weak +copy_oldmem_page_encrypted(unsigned long pfn, char *buf, size_t csize, + unsigned long offset, int userbuf) +{ + return copy_oldmem_page(pfn, buf, csize, offset, userbuf); +} + +/* * Copy to either kernel or user space */ static int copy_to(void *target, void *src, size_t size, int userbuf) |