[RFC PATCH 6/9] powerpc/traps: Inline get_mc_reason()

[Michael Ellerman]

get_mc_reason() no longer provides (if it ever really did) any
meaningful abstraction, so remove it.

Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
---
 arch/powerpc/kernel/traps.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 37cbfd7af41d..5ea1bd0ed254 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -380,11 +380,6 @@ static inline int check_io_access(struct pt_regs *regs)
 /* On 4xx, the reason for the machine check or program exception
    is in the ESR. */
 #define get_reason(regs)	((regs)->dsisr)
-#ifndef CONFIG_FSL_BOOKE
-#define get_mc_reason(regs)	((regs)->dsisr)
-#else
-#define get_mc_reason(regs)	(mfspr(SPRN_MCSR))
-#endif
 #define REASON_FP		ESR_FP
 #define REASON_ILLEGAL		(ESR_PIL | ESR_PUO)
 #define REASON_PRIVILEGED	ESR_PPR
@@ -398,7 +393,6 @@ static inline int check_io_access(struct pt_regs *regs)
 /* On non-4xx, the reason for the machine check or program
    exception is in the MSR. */
 #define get_reason(regs)	((regs)->msr)
-#define get_mc_reason(regs)	((regs)->msr)
 #define REASON_TM		0x200000
 #define REASON_FP		0x100000
 #define REASON_ILLEGAL		0x80000
@@ -511,7 +505,7 @@ int machine_check_e500mc(struct pt_regs *regs)
 
 int machine_check_e500(struct pt_regs *regs)
 {
-	unsigned long reason = get_mc_reason(regs);
+	unsigned long reason = mfspr(SPRN_MCSR);
 
 	if (reason & MCSR_BUS_RBERR) {
 		if (fsl_rio_mcheck_exception(regs))
@@ -558,7 +552,7 @@ int machine_check_generic(struct pt_regs *regs)
 #elif defined(CONFIG_E200)
 int machine_check_e200(struct pt_regs *regs)
 {
-	unsigned long reason = get_mc_reason(regs);
+	unsigned long reason = mfspr(SPRN_MCSR);
 
 	printk("Machine check in kernel mode.\n");
 	printk("Caused by (from MCSR=%lx): ", reason);
@@ -583,7 +577,7 @@ int machine_check_e200(struct pt_regs *regs)
 #elif defined(CONFIG_PPC_8xx)
 int machine_check_8xx(struct pt_regs *regs)
 {
-	unsigned long reason = get_mc_reason(regs);
+	unsigned long reason = regs->msr;
 
 	pr_err("Machine check in kernel mode.\n");
 	pr_err("Caused by (from SRR1=%lx): ", reason);
@@ -608,7 +602,7 @@ int machine_check_8xx(struct pt_regs *regs)
 #else
 int machine_check_generic(struct pt_regs *regs)
 {
-	unsigned long reason = get_mc_reason(regs);
+	unsigned long reason = regs->msr;
 
 	printk("Machine check in kernel mode.\n");
 	printk("Caused by (from SRR1=%lx): ", reason);
-- 
2.7.4