x86/microcode: Get rid of find_cpio_data()'s dummy offset arg

The microcode loader doesn't use it and now that that arg has been made
optional in find_cpio_data(), get rid of it here.

No functionality change.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1465225850-7352-5-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/kernel/cpu/microcode/amd.c

@@ -64,7 +64,6 @@ static struct cpio_data ucode_cpio;
 static struct cpio_data __init find_ucode_in_initrd(void)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-	long offset = 0;
 	char *path;
 	void *start;
 	size_t size;
@@ -92,7 +91,7 @@ static struct cpio_data __init find_ucode_in_initrd(void)
 	size    = boot_params.hdr.ramdisk_size;
 #endif /* !CONFIG_X86_32 */
 
-	return find_cpio_data(path, start, size, &offset);
+	return find_cpio_data(path, start, size, NULL);
 #else
 	return (struct cpio_data){ NULL, 0, "" };
 #endif

arch/x86/kernel/cpu/microcode/intel.c

@@ -685,7 +685,6 @@ static __init enum ucode_state
 __scan_microcode_initrd(struct cpio_data *cd, struct ucode_blobs *blbp)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-	long offset = 0;
 	static __initdata char ucode_name[] = "kernel/x86/microcode/GenuineIntel.bin";
 	char *p = IS_ENABLED(CONFIG_X86_32) ? (char *)__pa_nodebug(ucode_name)
 						    : ucode_name;
@@ -716,7 +715,7 @@ __scan_microcode_initrd(struct cpio_data *cd, struct ucode_blobs *blbp)
 	}
 # endif
 
-	*cd = find_cpio_data(p, (void *)start, size, &offset);
+	*cd = find_cpio_data(p, (void *)start, size, NULL);
 	if (cd->data) {
 		blbp->start = start;
 		blbp->valid = true;