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authorDavid S. Miller <davem@davemloft.net>2008-09-16 11:44:00 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-16 11:44:00 -0700
commit9843099ff46467461d6476a827f6f9701682dbac (patch)
tree989c39138718d8ea005a8fcf9651da19a2f270a8 /arch/sparc64/kernel/irq.c
parentf948cc6ab9e61a8e88d70ee9aafc690e6d26f92c (diff)
sparc64: Fix SMP bootup with CONFIG_STACK_DEBUG or ftrace.
Based upon a report by Meelis Roos. Any function call can try to access the current thread register via the _mcount hooks when the kernel is built with -pg (via ftrace or STACK_DEBUG). That can't be setup properly very early on during the bootup of other cpus for sun4u and some early sun4v systems. So add notrace markers to these specific functions, so that _mcount doesn't get invoked too early. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/irq.c')
-rw-r--r--arch/sparc64/kernel/irq.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 23963882bc1..7495bc77468 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -7,6 +7,7 @@
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/linkage.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/kernel_stat.h>
@@ -866,7 +867,7 @@ static void kill_prom_timer(void)
: "g1", "g2");
}
-void init_irqwork_curcpu(void)
+void notrace init_irqwork_curcpu(void)
{
int cpu = hard_smp_processor_id();
@@ -897,7 +898,7 @@ static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type
}
}
-void __cpuinit sun4v_register_mondo_queues(int this_cpu)
+void __cpuinit notrace sun4v_register_mondo_queues(int this_cpu)
{
struct trap_per_cpu *tb = &trap_block[this_cpu];