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nds32: remove dump_instr

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dump_inst has a return before actually doing anything, so just drop the
whole thing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Nick Hu <nickhu@andestech.com>
Acked-by: Greentime Hu <green.hu@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
This commit is contained in:
Christoph Hellwig 2020-07-20 13:44:47 +02:00 committed by Greentime Hu
parent e99da8af9c
commit 9d63fecfcb
1 changed files with 0 additions and 35 deletions
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35
arch/nds32/kernel/traps.c
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@ -62,40 +62,6 @@ void dump_mem(const char *lvl, unsigned long bottom, unsigned long top)
EXPORT_SYMBOL(dump_mem);
static void dump_instr(struct pt_regs *regs)
{
unsigned long addr = instruction_pointer(regs);
mm_segment_t fs;
char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
int i;
return;
/*
* We need to switch to kernel mode so that we can use __get_user
* to safely read from kernel space. Note that we now dump the
* code first, just in case the backtrace kills us.
*/
fs = get_fs();
set_fs(KERNEL_DS);
pr_emerg("Code: ");
for (i = -4; i < 1; i++) {
unsigned int val, bad;
bad = __get_user(val, &((u32 *) addr)[i]);
if (!bad) {
p += sprintf(p, i == 0 ? "(%08x) " : "%08x ", val);
} else {
p += sprintf(p, "bad PC value");
break;
}
}
pr_emerg("Code: %s\n", str);
set_fs(fs);
}
#define LOOP_TIMES (100)
static void __dump(struct task_struct *tsk, unsigned long *base_reg,
const char *loglvl)
@ -179,7 +145,6 @@ void die(const char *str, struct pt_regs *regs, int err)
if (!user_mode(regs) || in_interrupt()) {
dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK);
dump_instr(regs);
dump_stack();
}