diff options
| author | Michael Ellerman <michael@ozlabs.org> | 2011-04-11 23:46:19 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-20 09:01:18 +0200 |
| commit | de300974761d92f71cb583730ac9e1d4eb1b7156 (patch) | |
| tree | bfce8daf1dec8dff5af215bcf7647f38632490d4 /arch/powerpc/platforms/85xx | |
| parent | powerpc/boot: Add an ePAPR compliant boot wrapper (diff) | |
| download | linux-de300974761d92f71cb583730ac9e1d4eb1b7156.tar.xz linux-de300974761d92f71cb583730ac9e1d4eb1b7156.zip | |
powerpc/smp: smp_ops->kick_cpu() should be able to fail
When we start a cpu we use smp_ops->kick_cpu(), which currently
returns void, it should be able to fail. Convert it to return
int, and update all uses.
Convert all the current error cases to return -ENOENT, which is
what would eventually be returned by __cpu_up() currently when
it doesn't detect the cpu as coming up in time.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/85xx')
| -rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index 0d00ff9d05a0..fe3f6a3a5307 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -41,7 +41,7 @@ extern void __early_start(void); #define NUM_BOOT_ENTRY 8 #define SIZE_BOOT_ENTRY (NUM_BOOT_ENTRY * sizeof(u32)) -static void __init +static int __init smp_85xx_kick_cpu(int nr) { unsigned long flags; @@ -60,7 +60,7 @@ smp_85xx_kick_cpu(int nr) if (cpu_rel_addr == NULL) { printk(KERN_ERR "No cpu-release-addr for cpu %d\n", nr); - return; + return -ENOENT; } /* @@ -107,6 +107,8 @@ smp_85xx_kick_cpu(int nr) iounmap(bptr_vaddr); pr_debug("waited %d msecs for CPU #%d.\n", n, nr); + + return 0; } static void __init |