From: David S. Miller <davem@davemloft.net>
Date: Thu, 31 Jul 2008 08:06:02 +0000 (-0700)
Subject: sparc64: Kill smp_report_regs().
X-Git-Tag: v2.6.27-rc2~74^2~3
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=9c636e30a33aa37873c53977c429f0fdad4ec0eb;p=linux-2.6-omap-h63xx.git

sparc64: Kill smp_report_regs().

All the call sites are #if 0'd out and we have a much more
useful global cpu dumping facility these days.  smp_report_regs()
is way too verbose to be usable.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index affa4395245..bf740e039b7 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -254,15 +254,6 @@ void __show_regs(struct pt_regs * regs)
 void show_regs(struct pt_regs *regs)
 {
 	__show_regs(regs);
-#if 0
-#ifdef CONFIG_SMP
-	{
-		extern void smp_report_regs(void);
-
-		smp_report_regs();
-	}
-#endif
-#endif
 }
 
 struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 7cf72b4bb10..340842e51ce 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -843,7 +843,6 @@ 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;
-extern unsigned long xcall_report_regs;
 #ifdef CONFIG_MAGIC_SYSRQ
 extern unsigned long xcall_fetch_glob_regs;
 #endif
@@ -1022,11 +1021,6 @@ void kgdb_roundup_cpus(unsigned long flags)
 }
 #endif
 
-void smp_report_regs(void)
-{
-	smp_cross_call(&xcall_report_regs, 0, 0, 0);
-}
-
 #ifdef CONFIG_MAGIC_SYSRQ
 void smp_fetch_global_regs(void)
 {
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index bd30ecba563..f56b6fe78e9 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2177,7 +2177,6 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
 void die_if_kernel(char *str, struct pt_regs *regs)
 {
 	static int die_counter;
-	extern void smp_report_regs(void);
 	int count = 0;
 	
 	/* Amuse the user. */
@@ -2215,11 +2214,6 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 		}
 		user_instruction_dump ((unsigned int __user *) regs->tpc);
 	}
-#if 0
-#ifdef CONFIG_SMP
-	smp_report_regs();
-#endif
-#endif                                                	
 	if (regs->tstate & TSTATE_PRIV)
 		do_exit(SIGKILL);
 	do_exit(SIGSEGV);
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index 77ba88597cc..ff1dc44d363 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -480,41 +480,6 @@ xcall_sync_tick:
 	b		rtrap_xcall
 	 ldx		[%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
 
-	/* NOTE: This is SPECIAL!!  We do etrap/rtrap however
-	 *       we choose to deal with the "BH's run with
-	 *       %pil==15" problem (described in asm/pil.h)
-	 *       by just invoking rtrap directly past where
-	 *       BH's are checked for.
-	 *
-	 *       We do it like this because we do not want %pil==15
-	 *       lockups to prevent regs being reported.
-	 */
-	.globl		xcall_report_regs
-xcall_report_regs:
-
-661:	rdpr		%pstate, %g2
-	wrpr		%g2, PSTATE_IG | PSTATE_AG, %pstate
-	.section	.sun4v_2insn_patch, "ax"
-	.word		661b
-	nop
-	nop
-	.previous
-
-	rdpr		%pil, %g2
-	wrpr		%g0, 15, %pil
-	sethi		%hi(109f), %g7
-	b,pt		%xcc, etrap_irq
-109:	 or		%g7, %lo(109b), %g7
-#ifdef CONFIG_TRACE_IRQFLAGS
-	call		trace_hardirqs_off
-	 nop
-#endif
-	call		__show_regs
-	 add		%sp, PTREGS_OFF, %o0
-	/* Has to be a non-v9 branch due to the large distance. */
-	b		rtrap_xcall
-	 ldx		[%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
-
 #ifdef CONFIG_MAGIC_SYSRQ
 	.globl		xcall_fetch_glob_regs
 xcall_fetch_glob_regs: