Commit 81340977 authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
Browse files

fix maxcpus=N parsing

Commit 61ec7567

 ('ACPI: boot correctly
with "nosmp" or "maxcpus=0"') broke 'maxcpus=' handling on x86[-64].

maxcpus=N is now having no effect on x86_64, and freezing bootup on i386
(because of inconsistency with the separate maxcpus parsing down in
arch/i386, I guess).  That's because early_param parsing is a little
different from __setup parsing, and needs the "=" omitted: then it seems
to work as the original commit intended (no mention of IO-APIC in
/proc/interrupts when maxcpus=0).
Signed-off-by: default avatarHugh Dickins <>
Cc: Andrew Morton <>
Cc: Len Brown <>
Cc: Andi Kleen <>
Cc: Rusty Russell <>
Signed-off-by: default avatarLinus Torvalds <>
parent 88ede820
......@@ -168,7 +168,7 @@ static int __init maxcpus(char *str)
return 0;
early_param("maxcpus=", maxcpus);
early_param("maxcpus", maxcpus);
#define max_cpus NR_CPUS
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment