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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Mark Salter <msalter@redhat.com>, Tony Luck <tony.luck@intel.com>,
	David Howells <dhowells@redhat.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Guan Xuetao <gxt@mprc.pku.edu.cn>, Borislav Petkov <bp@alien8.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	Fengguang Wu <fengguang.wu@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
	Petr Mladek <pmladek@suse.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-c6x-dev@linux-c6x.org, linux-ia64@vger.kernel.org,
	linux-am33-list@redhat.com, linux-sh@vger.kernel.org,
	linux-edac@vger.kernel.org, x86@kernel.org,
	linux-snps-arc@lists.infradead.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Subject: [PATCH 03/13] c6x: do not use print_symbol()
Date: Mon, 11 Dec 2017 21:50:15 +0900	[thread overview]
Message-ID: <20171211125025.2270-4-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: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@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

  parent reply	other threads:[~2017-12-11 12:51 UTC|newest]

Thread overview: 38+ 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 ` Sergey Senozhatsky [this message]
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 ` [PATCH 07/13] unicore32: " Sergey Senozhatsky
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
2018-01-16 16:33           ` Petr Mladek
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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