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authorMichael Ellerman <mpe@ellerman.id.au>2015-04-04 19:28:50 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2015-04-10 20:02:49 +1000
commita7f4ee1fe93aa9ae191971be9324edb8f9fbcb4a (patch)
treed462b76619518d4d35a1cadb026297c77c2f7816 /arch/powerpc/sysdev
parent7261b956b276aa97fbf60d00f1d7717d2ea6ee78 (diff)
downloadlinux-a7f4ee1fe93aa9ae191971be9324edb8f9fbcb4a.tar.bz2
powerpc: Drop return value of smp_ops->probe()
smp_ops->probe() is currently supposed to return the number of cpus in the system. The last actual usage of the value was removed in May 2007 in e147ec8f1808 "[POWERPC] Simplify smp_space_timers". We still passed the value around until June 2010 when even that was finally removed in c1aa687d499a "powerpc: Clean up obsolete code relating to decrementer and timebase". So drop that requirement, probe() now returns void, and update all implementations. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/mpic.c4
-rw-r--r--arch/powerpc/sysdev/xics/xics-common.c4
2 files changed, 2 insertions, 6 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index fb19084c5860..b2b8447a227a 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1897,7 +1897,7 @@ void smp_mpic_message_pass(int cpu, int msg)
msg * MPIC_INFO(CPU_IPI_DISPATCH_STRIDE), physmask);
}
-int __init smp_mpic_probe(void)
+void __init smp_mpic_probe(void)
{
int nr_cpus;
@@ -1909,8 +1909,6 @@ int __init smp_mpic_probe(void)
if (nr_cpus > 1)
mpic_request_ipis();
-
- return nr_cpus;
}
void smp_mpic_setup_cpu(int cpu)
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index 125743b58c70..878a54036a25 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -140,15 +140,13 @@ static void xics_request_ipi(void)
IRQF_PERCPU | IRQF_NO_THREAD, "IPI", NULL));
}
-int __init xics_smp_probe(void)
+void __init xics_smp_probe(void)
{
/* Setup cause_ipi callback based on which ICP is used */
smp_ops->cause_ipi = icp_ops->cause_ipi;
/* Register all the IPIs */
xics_request_ipi();
-
- return num_possible_cpus();
}
#endif /* CONFIG_SMP */