[PATCH 06/13] sh: do not use print_symbol()

From: Sergey Senozhatsky
Date: Mon Dec 11 2017 - 07:52:06 EST


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@xxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
---
arch/sh/kernel/process_32.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 2c7bdf8cb934..5c88e7cb9c18 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -20,7 +20,6 @@
#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/elfcore.h>
-#include <linux/kallsyms.h>
#include <linux/fs.h>
#include <linux/ftrace.h>
#include <linux/hw_breakpoint.h>
@@ -37,8 +36,8 @@ void show_regs(struct pt_regs * regs)
printk("\n");
show_regs_print_info(KERN_DEFAULT);

- print_symbol("PC is at %s\n", instruction_pointer(regs));
- print_symbol("PR is at %s\n", regs->pr);
+ printk("PC is at %pS\n", instruction_pointer(regs));
+ printk("PR is at %pS\n", (void *)regs->pr);

printk("PC : %08lx SP : %08lx SR : %08lx ",
regs->pc, regs->regs[15], regs->sr);
--
2.15.1