[PATCH] powerpc/process: Enhance readability for trap types.
From: Xiongwei Song <hidden>
Date: 2021-03-28 14:42:19
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Xiongwei Song <redacted> Define macros to enhance the code readability on ppc trap types. Signed-off-by: Xiongwei Song <redacted> --- arch/powerpc/kernel/process.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3231c2df9e26..3bbd3cf353a7 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c@@ -1451,6 +1451,10 @@ static void print_msr_bits(unsigned long val) #define LAST_VOLATILE 12 #endif +#define TRAP_MC 0x200 /* Machine Check */ +#define TRAP_DSI 0x300 /* DSI exception */ +#define TRAP_AM 0x600 /* Alignment exception */ + static void __show_regs(struct pt_regs *regs) { int i, trap;
@@ -1465,7 +1469,7 @@ static void __show_regs(struct pt_regs *regs) trap = TRAP(regs); if (!trap_is_syscall(regs) && cpu_has_feature(CPU_FTR_CFAR)) pr_cont("CFAR: "REG" ", regs->orig_gpr3); - if (trap == 0x200 || trap == 0x300 || trap == 0x600) { + if (trap == TRAP_MC || trap == TRAP_DSI || trap == TRAP_AM) { if (IS_ENABLED(CONFIG_4xx) || IS_ENABLED(CONFIG_BOOKE)) pr_cont("DEAR: "REG" ESR: "REG" ", regs->dar, regs->dsisr); else
--
2.17.1