Re: [PATCH] arm/smp: Make boot_secondary() static
From: Arnd Bergmann
Date: Fri Jan 03 2014 - 12:04:45 EST
On Friday 03 January 2014, Geert Uytterhoeven wrote:
> From: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
>
> After becoming a mandatory function, boot_secondary() is no longer used
> outside arch/arm/kernel/smp.c. Hence make it static.
> The code is reshuffled a bit to avoid a forward declaration.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
How about taking it one step further by removing the function entirely?
Like this:
@@ -92,6 +92,9 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
{
int ret;
+ if (!smp_ops.smp_boot_secondary)
+ return -ENOSYS;
+
/*
* We need to tell the secondary core where to find
* its stack and the page tables.
@@ -111,7 +114,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
/*
* Now bring the CPU into our world.
*/
- ret = boot_secondary(cpu, idle);
+ ret = smp_ops.smp_boot_secondary(cpu, idle);
if (ret == 0) {
/*
* CPU was successfully started, wait for it
I guess we could do the same for some of the other operations as well
if everyone likes the approach.
Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/