From: Vineet Gupta <vgupta@synopsys.com>
Date: Mon, 25 Nov 2013 07:29:03 +0000 (+0530)
Subject: ARC: [SMP] cpumask not needed in IPI send path
X-Git-Tag: v3.14-rc1~98^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ddf84433f411b612e935a6719ee395bb9dd2221f;p=pandora-kernel.git

ARC: [SMP] cpumask not needed in IPI send path

The current IPI sending callstack needlessly involves cpumask.

   arch_send_call_function_single_ipi(cpu) / smp_send_reschedule(cpu)
      ipi_send_msg(cpumask_of(cpu))	--> [cpu to cpumask]
         plat_smp_ops.ipi_send(callmap)
            for_each_cpu(callmap)	--> [cpuask to cpu]
               do_plat_specific_ipi_PER_CPU

Given that current backends are not capable of 1:N IPIs, lets simplify
the interface for now, by keeping "a" cpu all along.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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