On 11/09/13 17:07, Jiang Liu wrote:
> From: Jiang Liu <jiang.liu@xxxxxxxxxx>
>
> Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
> similar to smp_call_function_single()" has unified the way to handle
> single and multiple cross-CPU function calls. Now only one interrupt
> is needed for architecture specific code to support generic SMP function
> call interfaces, so kill the redundant single function call interrupt.
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
> Cc: Jiang Liu <liuj97@xxxxxxxxx>
Seems to work.
Acked-by: James Hogan <james.hogan@xxxxxxxxxx>
Cheers
James
> ---
> arch/metag/include/asm/smp.h | 2 --
> arch/metag/kernel/smp.c | 6 +-----
> 2 files changed, 1 insertion(+), 7 deletions(-)
>
> diff --git a/arch/metag/include/asm/smp.h b/arch/metag/include/asm/smp.h
> index e0373f8..1d7e770 100644
> --- a/arch/metag/include/asm/smp.h
> +++ b/arch/metag/include/asm/smp.h
> @@ -7,13 +7,11 @@
>
> enum ipi_msg_type {
> IPI_CALL_FUNC,
> - IPI_CALL_FUNC_SINGLE,
> IPI_RESCHEDULE,
> };
>
> extern void arch_send_call_function_single_ipi(int cpu);
> extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
> -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
>
> asmlinkage void secondary_start_kernel(void);
>
> diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
> index 7c01131..5b3933b4 100644
> --- a/arch/metag/kernel/smp.c
> +++ b/arch/metag/kernel/smp.c
> @@ -491,7 +491,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
>
> void arch_send_call_function_single_ipi(int cpu)
> {
> - send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
> + send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);
> }
>
> void show_ipi_list(struct seq_file *p)
> @@ -546,10 +546,6 @@ static int do_IPI(struct pt_regs *regs)
> generic_smp_call_function_interrupt();
> break;
>
> - case IPI_CALL_FUNC_SINGLE:
> - generic_smp_call_function_single_interrupt();
> - break;
> -
> default:
> pr_crit("CPU%u: Unknown IPI message 0x%lx\n",
> cpu, nextmsg);
>
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