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authorRusty Russell <rusty@rustcorp.com.au>2006-09-26 10:52:32 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:32 +0200
commit33df0d19ea425d28bd5afb48898af32237fe81af (patch)
tree98305a70ad02fd680fd1bb21eedb08c51df17823 /init/main.c
parent[PATCH] Use early CPU identify before early command line parsing (diff)
downloadlinux-dev-33df0d19ea425d28bd5afb48898af32237fe81af.tar.xz
linux-dev-33df0d19ea425d28bd5afb48898af32237fe81af.zip
[PATCH] Allow early_param and identical __setup to exist
We currently assume that boot parameters which are handled by early_param() will not overlap boot parameters handled by __setup: if they do, behaviour is dependent on link order, usually meaning __setup will not get called. ACPI wants to use early_param("pci"), and pci uses __setup("pci="), so we modify the core to let them coexist: "pci=noacpi" will now get passed to both. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/init/main.c b/init/main.c
index 8651a720a092..6b69564738c1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -162,16 +162,19 @@ extern struct obs_kernel_param __setup_start[], __setup_end[];
static int __init obsolete_checksetup(char *line)
{
struct obs_kernel_param *p;
+ int had_early_param = 0;
p = __setup_start;
do {
int n = strlen(p->str);
if (!strncmp(line, p->str, n)) {
if (p->early) {
- /* Already done in parse_early_param? (Needs
- * exact match on param part) */
+ /* Already done in parse_early_param?
+ * (Needs exact match on param part).
+ * Keep iterating, as we can have early
+ * params and __setups of same names 8( */
if (line[n] == '\0' || line[n] == '=')
- return 1;
+ had_early_param = 1;
} else if (!p->setup_func) {
printk(KERN_WARNING "Parameter %s is obsolete,"
" ignored\n", p->str);
@@ -181,7 +184,8 @@ static int __init obsolete_checksetup(char *line)
}
p++;
} while (p < __setup_end);
- return 0;
+
+ return had_early_param;
}
/*