diff options
| author | David S. Miller <davem@davemloft.net> | 2008-08-10 01:25:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-10 01:25:26 +0200 |
| commit | b6b7922fbda63040946cac8251d5618ee7880e8a (patch) | |
| tree | d2337aa7101b32fb2f43fbed551b3a7525028492 | |
| parent | sparc64: Fix end-of-stack checking in save_stack_trace(). (diff) | |
| download | linux-b6b7922fbda63040946cac8251d5618ee7880e8a.tar.xz linux-b6b7922fbda63040946cac8251d5618ee7880e8a.zip | |
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.c | 4 | ||||
| -rw-r--r-- | arch/sparc64/mm/ultra.S | 2 |
2 files changed, 0 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 27b81775a4de..743ccad61c60 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 ff1dc44d363e..86773e89dc1b 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 |