diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2017-08-13 05:49:40 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-30 01:57:27 +0300 |
| commit | d595d423d06071bd7a4892c3c2f16bfe1d5b3a85 (patch) | |
| tree | babe4bf15082b7528e8c316dc0ec8630b0e24df9 /arch/mips/sibyte/sb1250 | |
| parent | 68923cdc2eb34124d77bc27f7945d7ff16b236dd (diff) | |
| download | linux-d595d423d06071bd7a4892c3c2f16bfe1d5b3a85.tar.xz | |
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/sibyte/sb1250')
| -rw-r--r-- | arch/mips/sibyte/sb1250/smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index 46ce1298c27d..5baabca52f25 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -106,7 +106,7 @@ static void sb1250_smp_finish(void) * Setup the PC, SP, and GP of a secondary processor and start it * running! */ -static void sb1250_boot_secondary(int cpu, struct task_struct *idle) +static int sb1250_boot_secondary(int cpu, struct task_struct *idle) { int retval; @@ -115,6 +115,7 @@ static void sb1250_boot_secondary(int cpu, struct task_struct *idle) (unsigned long)task_thread_info(idle), 0); if (retval != 0) printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); + return retval; } /* |