sh: shuffle the elfcorehdr handling over to the crash dump code.
The elfcorehdr parsing was just tossed in setup.c, but nothing outside of
the crash dump code/vmcore bits require it, so we just move it out of the
way, as per ppc.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c
index 95d2162..37c97d4 100644
--- a/arch/sh/kernel/crash_dump.c
+++ b/arch/sh/kernel/crash_dump.c
@@ -4,7 +4,6 @@
* Created by: Hariprasad Nellitheertha (hari@in.ibm.com)
* Copyright (C) IBM Corporation, 2004. All rights reserved
*/
-
#include <linux/errno.h>
#include <linux/crash_dump.h>
#include <linux/io.h>
@@ -13,6 +12,25 @@
/* Stores the physical address of elf header of crash image. */
unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
+/*
+ * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
+ * is_kdump_kernel() to determine if we are booting after a panic. Hence
+ * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
+ *
+ * elfcorehdr= specifies the location of elf core header
+ * stored by the crashed kernel.
+ */
+static int __init parse_elfcorehdr(char *arg)
+{
+ if (!arg)
+ return -EINVAL;
+
+ elfcorehdr_addr = memparse(arg, &arg);
+
+ return 0;
+}
+early_param("elfcorehdr", parse_elfcorehdr);
+
/**
* copy_oldmem_page - copy one page from "oldmem"
* @pfn: page frame number to be copied