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| 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/pseries/smp.c | |
| 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/pseries/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/smp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index fc72bfce7320..95f578158ff0 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -152,12 +152,12 @@ static void __devinit smp_xics_setup_cpu(int cpu) #endif } -static void __devinit smp_pSeries_kick_cpu(int nr) +static int __devinit smp_pSeries_kick_cpu(int nr) { BUG_ON(nr < 0 || nr >= NR_CPUS); if (!smp_startup_cpu(nr)) - return; + return -ENOENT; /* * The processor is currently spinning, waiting for the @@ -179,6 +179,8 @@ static void __devinit smp_pSeries_kick_cpu(int nr) "Ret= %ld\n", nr, rc); } #endif + + return 0; } static int smp_pSeries_cpu_bootable(unsigned int nr) |