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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2018-11-15 08:52:42 +0300
committerWill Deacon <will.deacon@arm.com>2018-12-06 17:38:49 +0300
commitb6664ba42f1424d2768b605dd60cecc4428d9364 (patch)
tree8d995602118f78d3338f1ff7a11ba22c6b052a0d /kernel/kexec_file.c
parent92a98a2b9f64a8b3c200a7709ceae04d09c39451 (diff)
downloadlinux-b6664ba42f1424d2768b605dd60cecc4428d9364.tar.xz
s390, kexec_file: drop arch_kexec_mem_walk()
Since s390 already knows where to locate buffers, calling arch_kexec_mem_walk() has no sense. So we can just drop it as kbuf->mem indicates this while all other architectures sets it to 0 initially. This change is a preparatory work for the next patch, where all the variant memory walks, either on system resource or memblock, will be put in one common place so that it will satisfy all the architectures' need. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Philipp Rudo <prudo@linux.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'kernel/kexec_file.c')
-rw-r--r--kernel/kexec_file.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 9ce6672f4fa3..9e6529da12ed 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -532,6 +532,10 @@ int kexec_locate_mem_hole(struct kexec_buf *kbuf)
{
int ret;
+ /* Arch knows where to place */
+ if (kbuf->mem != KEXEC_BUF_MEM_UNKNOWN)
+ return 0;
+
ret = arch_kexec_walk_mem(kbuf, locate_mem_hole_callback);
return ret == 1 ? 0 : -EADDRNOTAVAIL;