[PATCH 03/13] c6x: do not use print_symbol()

Sergey Senozhatsky sergey.senozhatsky.work at gmail.com
Mon Dec 11 04:50:15 PST 2017


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 at gmail.com>
Cc: Mark Salter <msalter at redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien at gmail.com>
---
 arch/c6x/kernel/traps.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
index 09b8a40d5680..4c1d4b84dd2b 100644
--- a/arch/c6x/kernel/traps.c
+++ b/arch/c6x/kernel/traps.c
@@ -11,7 +11,6 @@
 #include <linux/module.h>
 #include <linux/ptrace.h>
 #include <linux/sched/debug.h>
-#include <linux/kallsyms.h>
 #include <linux/bug.h>
 
 #include <asm/soc.h>
@@ -375,8 +374,7 @@ static void show_trace(unsigned long *stack, unsigned long *endstack)
 			if (i % 5 == 0)
 				pr_debug("\n	    ");
 #endif
-			pr_debug(" [<%08lx>]", addr);
-			print_symbol(" %s\n", addr);
+			pr_debug(" [<%08lx>] %pS\n", addr, (void *)addr);
 			i++;
 		}
 	}
-- 
2.15.1




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