commit d0729bc6bee797fb4bcca87583af5adbfe79ecfb
author Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Mon Dec 11 21:50:25 2017 +0900
committer Vineet Gupta <vgupta@synopsys.com> Wed Dec 20 12:41:43 2017 -0800
tree 1685889e98efbdea304d03125b3978295d0255b4
parent 329b4130bc5eb2a1b123a652b985dbdb08d6b9a8

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>

arch/arc/kernel/stacktrace.c

diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index 74315f3..bf40e06 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -163,7 +163,7 @@
  */
 static int __print_sym(unsigned int address, void *unused)
 {
-	__print_symbol("  %s\n", address);
+	printk("  %pS\n", (void *)address);
 	return 0;
 }