linux-kernel - [PATCH] arm, exec: remove redundant set_fs(USER

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Message-Id: <1307711337-4042-1-git-send-email-minipli@googlemail.com>
Date:	Fri, 10 Jun 2011 15:08:57 +0200
From:	Mathias Krause <minipli@...glemail.com>
To:	Russell King <linux@....linux.org.uk>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Mathias Krause <minipli@...glemail.com>
Subject: [PATCH] arm, exec: remove redundant set_fs(USER_DS)

The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.

Signed-off-by: Mathias Krause <minipli@...glemail.com>
---
 arch/arm/include/asm/processor.h |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index b2d9df5..3962caf 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -55,7 +55,6 @@ struct thread_struct {
 #define start_thread(regs,pc,sp)					\
 ({									\
 	unsigned long *stack = (unsigned long *)sp;			\
-	set_fs(USER_DS);						\
 	memset(regs->uregs, 0, sizeof(regs->uregs));			\
 	if (current->personality & ADDR_LIMIT_32BIT)			\
 		regs->ARM_cpsr = USR_MODE;				\
-- 
1.5.6.5

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