diff options
| author | Borislav Petkov <bp@suse.de> | 2018-10-08 10:05:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-24 08:23:23 +0100 |
| commit | 27647dde3018985379d58feacf2fc3f11e91b478 (patch) | |
| tree | c60d020981b9f0a2bde9379975de49a9493cb16c | |
| parent | c0be5255a16a4b0fa08363eb6acc72886052affe (diff) | |
proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()
[ Upstream commit cf089611f4c446285046fcd426d90c18f37d2905 ]
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
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 885d445afa0d..ce400f97370d 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -165,6 +165,16 @@ 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) |