From: Russell King Date: Thu, 2 Dec 2010 19:16:56 +0000 (+0000) Subject: ARM: SMP: remove IRQ-disabling for smp_cross_call() X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~15837^2~2^2^2~31 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:/?a=commitdiff_plain;h=0df7095205cbf6ea1cdfe6254e0d6a3b823caa3b;p=linux-4.9.git ARM: SMP: remove IRQ-disabling for smp_cross_call() As we've now removed the spinlock and bitmask, we have nothing left which requires interrupts to be disabled when sending an IPI. All current IPI-sending implementations use the GIC, which also does not require interrupts disabled when calling gic_raise_softirq(). Remove the now unnecessary IRQ disable. Signed-off-by: Russell King --- diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 78d55c681a4f..4878e51561f9 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -383,16 +383,10 @@ void __init smp_prepare_boot_cpu(void) static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg) { - unsigned long flags; - - local_irq_save(flags); - /* * Call the platform specific cross-CPU call function. */ smp_cross_call(mask, msg); - - local_irq_restore(flags); } void arch_send_call_function_ipi_mask(const struct cpumask *mask)