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From: sergey.senozhatsky.work@gmail.com (Sergey Senozhatsky)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 07/13] unicore32: do not use print_symbol()
Date: Mon, 11 Dec 2017 21:50:19 +0900	[thread overview]
Message-ID: <20171211125025.2270-8-sergey.senozhatsky@gmail.com> (raw)
In-Reply-To: <20171211125025.2270-1-sergey.senozhatsky@gmail.com>

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>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
---
 arch/unicore32/kernel/process.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index ddaf78ae6854..9a9d49bccc02 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -23,7 +23,6 @@
 #include <linux/delay.h>
 #include <linux/reboot.h>
 #include <linux/interrupt.h>
-#include <linux/kallsyms.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
 #include <linux/elfcore.h>
@@ -139,8 +138,8 @@ void __show_regs(struct pt_regs *regs)
 	char buf[64];
 
 	show_regs_print_info(KERN_DEFAULT);
-	print_symbol("PC is at %s\n", instruction_pointer(regs));
-	print_symbol("LR is at %s\n", regs->UCreg_lr);
+	printk("PC is at %pS\n", instruction_pointer(regs));
+	printk("LR is at %pS\n", (void *)regs->UCreg_lr);
 	printk(KERN_DEFAULT "pc : [<%08lx>]    lr : [<%08lx>]    psr: %08lx\n"
 	       "sp : %08lx  ip : %08lx  fp : %08lx\n",
 		regs->UCreg_pc, regs->UCreg_lr, regs->UCreg_asr,
-- 
2.15.1

  parent reply	other threads:[~2017-12-11 12:50 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-11 12:50 [PATCH 00/13] replace print_symbol() with printk()-s Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 01/13] arm: do not use print_symbol() Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 02/13] arm64: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 03/13] c6x: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 04/13] ia64: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 05/13] mn10300: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 06/13] sh: " Sergey Senozhatsky
2017-12-11 12:50 ` Sergey Senozhatsky [this message]
2017-12-11 12:50 ` [PATCH 08/13] x86: " Sergey Senozhatsky
2017-12-11 17:45   ` Borislav Petkov
2017-12-12  2:41     ` Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 09/13] drivers: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 10/13] sysfs: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 11/13] irq debug: " Sergey Senozhatsky
2017-12-11 12:55   ` David Laight
2017-12-12  2:50     ` Sergey Senozhatsky
2017-12-12  7:34   ` [PATCHv2 " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 12/13] lib: " Sergey Senozhatsky
2017-12-11 12:50 ` [PATCH 13/13] arc: do not use __print_symbol() Sergey Senozhatsky
2017-12-11 16:28   ` Vineet Gupta
2017-12-12  2:41     ` Sergey Senozhatsky
2017-12-11 16:26 ` [PATCH 00/13] replace print_symbol() with printk()-s Joe Perches
2017-12-12  2:47   ` Sergey Senozhatsky
2017-12-12  3:10     ` Joe Perches
2017-12-21  5:54       ` Sergey Senozhatsky
2017-12-20 10:20 ` Sergey Senozhatsky
2018-01-05 10:03 ` Petr Mladek
2018-01-05 10:21   ` Sergey Senozhatsky
2018-01-05 10:25     ` Sergey Senozhatsky
2018-01-05 14:42       ` Petr Mladek
2018-01-05 14:57         ` Sergey Senozhatsky
2018-01-08  2:09         ` Sergey Senozhatsky
     [not found]           ` <20180116163301.lh76kvjheyobjgkp@pathway.suse.cz>
2018-01-17  2:36             ` Sergey Senozhatsky
2018-01-05 11:38     ` Petr Mladek
2018-01-05 12:01     ` Sergey Senozhatsky
2018-01-05 12:23       ` Sergey Senozhatsky
2018-01-05 13:09         ` Petr Mladek

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