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| author | Paul Burton <paul.burton@imgtec.com> | 2017-08-12 19:49:40 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-30 00:57:27 +0200 |
| commit | d595d423d06071bd7a4892c3c2f16bfe1d5b3a85 (patch) | |
| tree | babe4bf15082b7528e8c316dc0ec8630b0e24df9 /arch/mips/kernel/smp-cmp.c | |
| parent | 68923cdc2eb34124d77bc27f7945d7ff16b236dd (diff) | |
| download | linux-d595d423d06071bd7a4892c3c2f16bfe1d5b3a85.tar.bz2 | |
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 <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17014/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smp-cmp.c')
| -rw-r--r-- | arch/mips/kernel/smp-cmp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c index 1acffdee88f4..04b21deea4f2 100644 --- a/arch/mips/kernel/smp-cmp.c +++ b/arch/mips/kernel/smp-cmp.c @@ -78,7 +78,7 @@ static void cmp_smp_finish(void) * __KSTK_TOS(idle) is apparently the stack pointer * (unsigned long)idle->thread_info the gp */ -static void cmp_boot_secondary(int cpu, struct task_struct *idle) +static int cmp_boot_secondary(int cpu, struct task_struct *idle) { struct thread_info *gp = task_thread_info(idle); unsigned long sp = __KSTK_TOS(idle); @@ -95,6 +95,7 @@ static void cmp_boot_secondary(int cpu, struct task_struct *idle) #endif amon_cpu_start(cpu, pc, sp, (unsigned long)gp, a0); + return 0; } /* |