Commit-ID: cf089611f4c446285046fcd426d90c18f37d2905 Gitweb: https://git.kernel.org/tip/cf089611f4c446285046fcd426d90c18f37d2905 Author: Borislav Petkov <b...@suse.de> AuthorDate: Mon, 8 Oct 2018 10:05:20 +0200 Committer: Borislav Petkov <b...@suse.de> CommitDate: Tue, 9 Oct 2018 11:57:28 +0200
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 <liji...@redhat.com> Signed-off-by: Borislav Petkov <b...@suse.de> CC: x...@kernel.org Link: http://lkml.kernel.org/r/710b9d95-2f70-eadf-c4a1-c3dc80ee4...@redhat.com --- fs/proc/vmcore.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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 @@ -187,6 +187,16 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma, return remap_pfn_range(vma, from, pfn, size, prot); } +/* + * 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 */
