From 33df0d19ea425d28bd5afb48898af32237fe81af Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 26 Sep 2006 10:52:32 +0200 Subject: [PATCH] [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 Signed-off-by: Andi Kleen --- init/main.c | 12 ++++++++---- 1 file 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setup_func) { printk(KERN_WARNING "Parameter %s is obsolete," " ignored\n", p-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; } /* -- 2.20.1