In order for architectures to make use of locate_mem_hole_callback()
and avoid reinventing a square wheel, make this function global
and rename it to kexec_locate_mem_hole_callback() to match the
other global kexec symbols.
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Reviewed-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
include/linux/kexec.h | 1 +
kernel/kexec_file.c | 6 +++---
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 0c994ae37729..4b507efdb623 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -204,6 +204,7 @@ int arch_kexec_locate_mem_hole(struct kexec_buf *kbuf);
extern int kexec_add_buffer(struct kexec_buf *kbuf);
int kexec_locate_mem_hole(struct kexec_buf *kbuf);
+int kexec_locate_mem_hole_callback(struct resource *res, void *arg);
/* Alignment required for elf header segment */
#define ELF_CORE_HEADER_ALIGN 4096
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 33400ff051a8..960aefc4501d 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -517,7 +517,7 @@ static int locate_mem_hole_bottom_up(unsigned long start, unsigned long end,
return 1;
}
-static int locate_mem_hole_callback(struct resource *res, void *arg)
+int kexec_locate_mem_hole_callback(struct resource *res, void *arg)
{
struct kexec_buf *kbuf = (struct kexec_buf *)arg;
u64 start = res->start, end = res->end;
@@ -634,9 +634,9 @@ int kexec_locate_mem_hole(struct kexec_buf *kbuf)
return 0;
if (!IS_ENABLED(CONFIG_ARCH_KEEP_MEMBLOCK))
- ret = kexec_walk_resources(kbuf, locate_mem_hole_callback);
+ ret = kexec_walk_resources(kbuf, kexec_locate_mem_hole_callback);
else
- ret = kexec_walk_memblock(kbuf, locate_mem_hole_callback);
+ ret = kexec_walk_memblock(kbuf, kexec_locate_mem_hole_callback);
return ret == 1 ? 0 : -EADDRNOTAVAIL;
}
--
2.30.2
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