From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Date: Mon, 11 Dec 2017 12:50:25 +0000 (+0900)
Subject: arc: do not use __print_symbol()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d0729bc6bee797fb4bcca87583af5adbfe79ecfb;p=linux.git

arc: do not use __print_symbol()

__print_symbol() uses extra stack space to sprintf() symbol
information and then to feed that buffer to printk()

  char buffer[KSYM_SYMBOL_LEN];

  sprint_symbol(buffer, address);
  printk(fmt, buffer);

Replace __print_symbol() with a direct printk("%pS") call.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---

diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index 74315f302971b..bf40e06f3fb84 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -163,7 +163,7 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs,
  */
 static int __print_sym(unsigned int address, void *unused)
 {
-	__print_symbol("  %s\n", address);
+	printk("  %pS\n", (void *)address);
 	return 0;
 }