[PATCH] Convert x86-64 to early param

Instead of hackish manual parsing

Requires earlier i386 patchkit, but also fixes i386 early_printk again.

I removed some obsolete really early parameters which didn't do anything useful.
Also made a few parameters that needed it early (mostly oops printing setup)

Also removed one panic check that wasn't visible without
early console anyways (the early console is now initialized after that
panic)

This cleans up a lot of code.

Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 15 insertions, 9 deletions

diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 56d7ff0c894c..9ec2b1d5893d 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -1119,24 +1119,30 @@ void __init trap_init(void)
 }
 
 
-/* Actual parsing is done early in setup.c. */
-static int __init oops_dummy(char *s)
+static int __init oops_setup(char *s)
 { 
-        panic_on_oops = 1;
-        return 1;
+        if (!s)
+                return -EINVAL;
+        if (!strcmp(s, "panic"))
+                panic_on_oops = 1;
+        return 0;
 } 
-__setup("oops=", oops_dummy); 
+early_param("oops", oops_setup);
 
 static int __init kstack_setup(char *s)
 {
+        if (!s)
+                return -EINVAL;
         kstack_depth_to_print = simple_strtoul(s,NULL,0);
-        return 1;
+        return 0;
 }
-__setup("kstack=", kstack_setup);
+early_param("kstack", kstack_setup);
 
 #ifdef CONFIG_STACK_UNWIND
 static int __init call_trace_setup(char *s)
 {
+        if (!s)
+                return -EINVAL;
         if (strcmp(s, "old") == 0)
                 call_trace = -1;
         else if (strcmp(s, "both") == 0)
@@ -1145,7 +1151,7 @@ static int __init call_trace_setup(char *s)
                 call_trace = 1;
         else if (strcmp(s, "new") == 0)
                 call_trace = 2;
-        return 1;
+        return 0;
 }
-__setup("call_trace=", call_trace_setup);
+early_param("call_trace", call_trace_setup);
 #endif