[Resend RFC PATCH 1/5] powerpc: Free up the IPI message slot of ipi call function (PPC_MSG_CALL_FUNC)

From: Srivatsa S. Bhat 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, since only 4 of those slots are

[Resend RFC PATCH 1/5] powerpc: Free up the IPI message slot of ipi call function (PPC_MSG_CALL_FUNC)

From: Srivatsa S. Bhat srivatsa.b...@linux.vnet.ibm.com 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,