From e04763713286b1e00e1c2a33fe2741caf9470f2b Mon Sep 17 00:00:00 2001 From: Milton Miller Date: Tue, 10 May 2011 19:29:06 +0000 Subject: powerpc: Remove call sites of MSG_ALL_BUT_SELF The only user of MSG_ALL_BUT_SELF in the whole kernel tree is powerpc, and it only uses it to start the debugger. Both debuggers always call smp_send_debugger_break with MSG_ALL_BUT_SELF, and only mpic can do anything more optimal than a loop over all online cpus, but all message passing implementations have to code for this special delivery target. Convert smp_send_debugger_break to take void and loop calling the smp_ops message_pass function for each of the other cpus in the online cpumask. Use raw_smp_processor_id() because we are either entering the debugger or trying to start kdump and the additional warning it not useful were it to trigger. Signed-off-by: Milton Miller Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/xmon/xmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/xmon') diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 91309c5c00d7..42541bbcc7fa 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -437,7 +437,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi) xmon_owner = cpu; mb(); if (ncpus > 1) { - smp_send_debugger_break(MSG_ALL_BUT_SELF); + smp_send_debugger_break(); /* wait for other cpus to come in */ for (timeout = 100000000; timeout != 0; --timeout) { if (cpumask_weight(&cpus_in_xmon) >= ncpus) -- cgit 1.4.1