[tip:x86/mce] x86/microcode/AMD: Use find_microcode_in_initrd()

[tip-bot for Borislav Petkov]

Commit-ID:  8cc26e0b4c49246564f773edbbefa3d5dc91d56e
Gitweb:     http://git.kernel.org/tip/8cc26e0b4c49246564f773edbbefa3d5dc91d56e
Author:     Borislav Petkov <bp@xxxxxxx>
AuthorDate: Fri, 20 Jan 2017 21:29:49 +0100
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 23 Jan 2017 10:02:48 +0100

x86/microcode/AMD: Use find_microcode_in_initrd()

Use the generic helper instead of semi-open-coding the procedure.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170120202955.4091-11-bp@xxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
 arch/x86/kernel/cpu/microcode/amd.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 4cbfe70..7727f27 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -337,17 +337,15 @@ void load_ucode_amd_ap(unsigned int cpuid_1_eax)
 
 	/* First AP hasn't cached it yet, go through the blob. */
 	if (!cont.data) {
-		struct cpio_data cp = { NULL, 0, "" };
+		struct cpio_data cp;
 
 		if (cont.size == -1)
 			return;
 
 reget:
 		if (!get_builtin_microcode(&cp, x86_family(cpuid_1_eax))) {
-#ifdef CONFIG_BLK_DEV_INITRD
-			cp = find_cpio_data(ucode_path, (void *)initrd_start,
-					    initrd_end - initrd_start, NULL);
-#endif
+			cp = find_microcode_in_initrd(ucode_path, false);
+
 			if (!(cp.data && cp.size)) {
 				/*
 				 * Mark it so that other APs do not scan again
@@ -401,13 +399,9 @@ int __init save_microcode_in_initrd_amd(unsigned int cpuid_1_eax)
 
 	if (!cont.data) {
 		if (IS_ENABLED(CONFIG_X86_32) && (cont.size != -1)) {
-			struct cpio_data cp = { NULL, 0, "" };
-
-#ifdef CONFIG_BLK_DEV_INITRD
-			cp = find_cpio_data(ucode_path, (void *)initrd_start,
-					    initrd_end - initrd_start, NULL);
-#endif
+			struct cpio_data cp;
 
+			cp = find_microcode_in_initrd(ucode_path, false);
 			if (!(cp.data && cp.size)) {
 				cont.size = -1;
 				return -EINVAL;