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authorTom Lendacky <thomas.lendacky@amd.com>2017-10-20 09:30:51 -0500
committerThomas Gleixner <tglx@linutronix.de>2017-11-07 15:35:57 +0100
commit1d2e733b13b450e5854f4a8f8efcd77fa7362d62 (patch)
treea38738ce58e19cb5fb1f3d95e24e75cb1ab8fdf7 /arch/powerpc
parent4ac2aed837cbdbb21c12a28c04718e34c1dc225f (diff)
downloadlinux-1d2e733b13b450e5854f4a8f8efcd77fa7362d62.tar.bz2
resource: Provide resource struct in resource walk callback
In preperation for a new function that will need additional resource information during the resource walk, update the resource walk callback to pass the resource structure. Since the current callback start and end arguments are pulled from the resource structure, the callback functions can obtain them from the resource structure directly. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Cc: kvm@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lkml.kernel.org/r/20171020143059.3291-10-brijesh.singh@amd.com
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/machine_kexec_file_64.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
index 992c0d258e5d..e4395f937d63 100644
--- a/arch/powerpc/kernel/machine_kexec_file_64.c
+++ b/arch/powerpc/kernel/machine_kexec_file_64.c
@@ -91,11 +91,13 @@ int arch_kimage_file_post_load_cleanup(struct kimage *image)
* and that value will be returned. If all free regions are visited without
* func returning non-zero, then zero will be returned.
*/
-int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
+int arch_kexec_walk_mem(struct kexec_buf *kbuf,
+ int (*func)(struct resource *, void *))
{
int ret = 0;
u64 i;
phys_addr_t mstart, mend;
+ struct resource res = { };
if (kbuf->top_down) {
for_each_free_mem_range_reverse(i, NUMA_NO_NODE, 0,
@@ -105,7 +107,9 @@ int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
* range while in kexec, end points to the last byte
* in the range.
*/
- ret = func(mstart, mend - 1, kbuf);
+ res.start = mstart;
+ res.end = mend - 1;
+ ret = func(&res, kbuf);
if (ret)
break;
}
@@ -117,7 +121,9 @@ int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
* range while in kexec, end points to the last byte
* in the range.
*/
- ret = func(mstart, mend - 1, kbuf);
+ res.start = mstart;
+ res.end = mend - 1;
+ ret = func(&res, kbuf);
if (ret)
break;
}