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authorDavid S. Miller <davem@davemloft.net>2008-08-09 16:25:26 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-09 16:25:26 -0700
commitb6b7922fbda63040946cac8251d5618ee7880e8a (patch)
treed2337aa7101b32fb2f43fbed551b3a7525028492
parent433c5f706856689be25928a99636e724fb3ea7cf (diff)
sparc64: Don't MAGIC_SYSRQ ifdef smp_fetch_global_regs and support code.
Based upon a report and initial patch by Friedrich Oslage. The intention is to provide this facility for __trigger_all_cpu_backtrace even if MAGIC_SYSRQ is not set. The only part that should have MAGIC_SYSRQ ifdef protection is the sparc_globalreg_op sysrq regitration and immediate code. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc64/kernel/smp.c4
-rw-r--r--arch/sparc64/mm/ultra.S2
2 files changed, 0 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 27b81775a4d..743ccad61c6 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -858,9 +858,7 @@ void smp_tsb_sync(struct mm_struct *mm)
extern unsigned long xcall_flush_tlb_mm;
extern unsigned long xcall_flush_tlb_pending;
extern unsigned long xcall_flush_tlb_kernel_range;
-#ifdef CONFIG_MAGIC_SYSRQ
extern unsigned long xcall_fetch_glob_regs;
-#endif
extern unsigned long xcall_receive_signal;
extern unsigned long xcall_new_mmu_context_version;
#ifdef CONFIG_KGDB
@@ -1005,12 +1003,10 @@ void kgdb_roundup_cpus(unsigned long flags)
}
#endif
-#ifdef CONFIG_MAGIC_SYSRQ
void smp_fetch_global_regs(void)
{
smp_cross_call(&xcall_fetch_glob_regs, 0, 0, 0);
}
-#endif
/* We know that the window frames of the user have been flushed
* to the stack before we get here because all callers of us
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index ff1dc44d363..86773e89dc1 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -480,7 +480,6 @@ xcall_sync_tick:
b rtrap_xcall
ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
-#ifdef CONFIG_MAGIC_SYSRQ
.globl xcall_fetch_glob_regs
xcall_fetch_glob_regs:
sethi %hi(global_reg_snapshot), %g1
@@ -511,7 +510,6 @@ xcall_fetch_glob_regs:
membar #StoreStore
stx %g3, [%g1 + GR_SNAP_THREAD]
retry
-#endif /* CONFIG_MAGIC_SYSRQ */
#ifdef DCACHE_ALIASING_POSSIBLE
.align 32