[PATCH v2] arm64: rename dump_instr as dump_kernel_instr

[jinho lim]

[v2]
dump_kernel_instr does not work for user mode.
rename dump_instr function and remove __dump_instr.

Signed-off-by: jinho lim <jordan....@samsung.com>
---

Thanks for review, I rename dump_instr function and merge __dump_instr in it.

 arch/arm64/kernel/traps.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index ccc13b45d9b1..7053165cb31a 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -66,11 +66,20 @@ static void dump_backtrace_entry(unsigned long where)
        printk(" %pS\n", (void *)where);
 }
 
-static void __dump_instr(const char *lvl, struct pt_regs *regs)
+static void dump_kernel_instr(const char *lvl, struct pt_regs *regs)
 {
-       unsigned long addr = instruction_pointer(regs);
+       unsigned long addr;
        char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
        int i;
+       mm_segment_t fs;
+
+       if (user_mode(regs))
+               return;
+
+       addr = instruction_pointer(regs);
+
+       fs = get_fs();
+       set_fs(KERNEL_DS);
 
        for (i = -4; i < 1; i++) {
                unsigned int val, bad;
@@ -84,19 +93,10 @@ static void __dump_instr(const char *lvl, struct pt_regs 
*regs)
                        break;
                }
        }
+
        printk("%sCode: %s\n", lvl, str);
-}
 
-static void dump_instr(const char *lvl, struct pt_regs *regs)
-{
-       if (!user_mode(regs)) {
-               mm_segment_t fs = get_fs();
-               set_fs(KERNEL_DS);
-               __dump_instr(lvl, regs);
-               set_fs(fs);
-       } else {
-               __dump_instr(lvl, regs);
-       }
+       set_fs(fs);
 }
 
 void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
@@ -182,8 +182,7 @@ static int __die(const char *str, int err, struct pt_regs 
*regs)
        print_modules();
        show_regs(regs);
 
-       if (!user_mode(regs))
-               dump_instr(KERN_EMERG, regs);
+       dump_kernel_instr(KERN_EMERG, regs);
 
        return ret;
 }
-- 
2.17.1