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-rw-r--r--init/main.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/init/main.c b/init/main.c
index d3bcb3b11620..cc0653ec081d 100644
--- a/init/main.c
+++ b/init/main.c
@@ -146,9 +146,14 @@ static unsigned int __initdata max_cpus = NR_CPUS;
* greater than 0, limits the maximum number of CPUs activated in
* SMP mode to <NUM>.
*/
+#ifndef CONFIG_X86_IO_APIC
+static inline void disable_ioapic_setup(void) {};
+#endif
+
static int __init nosmp(char *str)
{
max_cpus = 0;
+ disable_ioapic_setup();
return 0;
}
@@ -157,10 +162,13 @@ early_param("nosmp", nosmp);
static int __init maxcpus(char *str)
{
get_option(&str, &max_cpus);
- return 1;
+ if (max_cpus == 0)
+ disable_ioapic_setup();
+
+ return 0;
}
-__setup("maxcpus=", maxcpus);
+early_param("maxcpus=", maxcpus);
#else
#define max_cpus NR_CPUS
#endif