kexec-tools: mips: Remove commandline parameter "mem"

"mem=" indicating the memory region the new kernel can use to boot into.
And passed to the dump-capture kernel by kernel commandline parameter
"mem=". But in the dump-capture kernel, we don’t need to use this parameter
now, so remove "mem" and don't add "mem=" to new kernel commandline.

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Simon Horman <horms@verge.net.au>

1 files changed, 0 insertions, 29 deletions

diff --git a/kexec/arch/mips/crashdump-mips.c b/kexec/arch/mips/crashdump-mips.c
index fc92e646..26d5043f 100644
--- a/kexec/arch/mips/crashdump-mips.c
+++ b/kexec/arch/mips/crashdump-mips.c
@@ -243,33 +243,6 @@ static void ultoa(unsigned long i, char *str)
 	}
 }
 
-/* Adds the appropriate mem= options to command line, indicating the
- * memory region the new kernel can use to boot into. */
-static int cmdline_add_mem(char *cmdline, unsigned long addr,
-		unsigned long size)
-{
-	int cmdlen, len;
-	char str[50], *ptr;
-
-	addr = addr/1024;
-	size = size/1024;
-	ptr = str;
-	strcpy(str, " mem=");
-	ptr += strlen(str);
-	ultoa(size, ptr);
-	strcat(str, "K@");
-	ptr = str + strlen(str);
-	ultoa(addr, ptr);
-	strcat(str, "K");
-	len = strlen(str);
-	cmdlen = strlen(cmdline) + len;
-	if (cmdlen > (COMMAND_LINE_SIZE - 1))
-		die("Command line overflow\n");
-	strcat(cmdline, str);
-
-	return 0;
-}
-
 /* Adds the elfcorehdr= command line parameter to command line. */
 static int cmdline_add_elfcorehdr(char *cmdline, unsigned long addr)
 {
@@ -397,8 +370,6 @@ int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline,
 	 * backup segment is after elfcorehdr, so use elfcorehdr as top of
 	 * kernel's available memory
 	 */
-	cmdline_add_mem(mod_cmdline, crash_reserved_mem.start,
-		elfcorehdr - crash_reserved_mem.start);
 	cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr);
 
 	dbgprintf("CRASH MEMORY RANGES:\n");