From d595d423d06071bd7a4892c3c2f16bfe1d5b3a85 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Sat, 12 Aug 2017 19:49:40 -0700 Subject: MIPS: SMP: Allow boot_secondary SMP op to return errors Allow the boot_secondary SMP op to return an error to __cpu_up(), which will in turn return it to its caller. This will allow SMP implementations to return errors quickly in cases they they know have failed, rather than relying upon __cpu_up() eventually timing out waiting for the cpu_running completion. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/17014/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/smp-cps.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/mips/kernel/smp-cps.c') diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 7aac84ffc2af..4a4a25c722f1 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -288,7 +288,7 @@ static void remote_vpe_boot(void *dummy) mips_cps_boot_vpes(core_cfg, cpu_vpe_id(¤t_cpu_data)); } -static void cps_boot_secondary(int cpu, struct task_struct *idle) +static int cps_boot_secondary(int cpu, struct task_struct *idle) { unsigned core = cpu_core(&cpu_data[cpu]); unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]); @@ -346,6 +346,7 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle) mips_cps_boot_vpes(core_cfg, vpe_id); out: preempt_enable(); + return 0; } static void cps_init_secondary(void) -- cgit v1.2.3-70-g09d2