From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Date: Wed, 26 Feb 2014 00:07:29 +0000 (+0530)
Subject: powerpc: Free up the slot of PPC_MSG_CALL_FUNC_SINGLE IPI message
X-Git-Tag: v3.15-rc1~123^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=402d9a1e02f7215628f13b7c80ff3e98c3a0cadc;p=pandora-kernel.git

powerpc: Free up the slot of PPC_MSG_CALL_FUNC_SINGLE IPI message

The IPI handlers for both PPC_MSG_CALL_FUNC and PPC_MSG_CALL_FUNC_SINGLE map
to a common implementation - generic_smp_call_function_single_interrupt(). So,
we can consolidate them and save one of the IPI message slots, (which are
precious on powerpc, since only 4 of those slots are available).

So, implement the functionality of PPC_MSG_CALL_FUNC_SINGLE using
PPC_MSG_CALL_FUNC itself and release its IPI message slot, so that it can be
used for something else in the future, if desired.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Preeti U. Murthy <preeti@linux.vnet.ibm.com>
Acked-by: Geoff Levand <geoff@infradead.org> [For the PS3 part]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

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