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sparc32: Kill smp_message_pass() and related code.

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Completely unused, and it just makes the SMP message
passing code on 32-bit sparc look more complex than
it is.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-04-29 01:14:10 -07:00
parent ceb4e8e44b
commit 0a9e9b110c
3 changed files with 0 additions and 79 deletions
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32
arch/sparc/kernel/sun4d_smp.c
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@@ -335,37 +335,6 @@ void smp4d_cross_call_irq(void)
ccall_info.processors_out[i] = 1;
}
static int smp4d_stop_cpu_sender;
static void smp4d_stop_cpu(void)
{
int me = hard_smp4d_processor_id();
if (me != smp4d_stop_cpu_sender)
while(1) barrier();
}
/* Cross calls, in order to work efficiently and atomically do all
* the message passing work themselves, only stopcpu and reschedule
* messages come through here.
*/
void smp4d_message_pass(int target, int msg, unsigned long data, int wait)
{
int me = hard_smp4d_processor_id();
SMP_PRINTK(("smp4d_message_pass %d %d %08lx %d\n", target, msg, data, wait));
if (msg == MSG_STOP_CPU && target == MSG_ALL_BUT_SELF) {
unsigned long flags;
static DEFINE_SPINLOCK(stop_cpu_lock);
spin_lock_irqsave(&stop_cpu_lock, flags);
smp4d_stop_cpu_sender = me;
smp4d_cross_call((smpfunc_t)smp4d_stop_cpu, 0, 0, 0, 0, 0);
spin_unlock_irqrestore(&stop_cpu_lock, flags);
}
printk("Yeeee, trying to send SMP msg(%d) to %d on cpu %d\n", msg, target, me);
panic("Bogon SMP message pass.");
}
void smp4d_percpu_timer_interrupt(struct pt_regs *regs)
{
struct pt_regs *old_regs;
@@ -439,7 +408,6 @@ void __init sun4d_init_smp(void)
BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4d_blackbox_id);
BTFIXUPSET_BLACKBOX(load_current, smp4d_blackbox_current);
BTFIXUPSET_CALL(smp_cross_call, smp4d_cross_call, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(smp_message_pass, smp4d_message_pass, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4d_processor_id, BTFIXUPCALL_NORM);
for (i = 0; i < NR_CPUS; i++) {