From: Mathias Krause <minipli@googlemail.com>
Date: Tue, 15 Nov 2011 22:54:51 +0000 (-0800)
Subject: unicore32, exec: remove redundant set_fs(USER_DS)
X-Git-Tag: firefly_0821_release~3680^2~4087^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ed96dfbcfea92233d27db9d3c77fc91a58c959bf;p=firefly-linux-kernel-4.4.55.git

unicore32, 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@googlemail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
---

diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h
index e11cb0786578..f0d780a51f9b 100644
--- a/arch/unicore32/include/asm/processor.h
+++ b/arch/unicore32/include/asm/processor.h
@@ -53,7 +53,6 @@ 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));			\
 	regs->UCreg_asr = USER_MODE;					\
 	regs->UCreg_pc = pc & ~1;	/* pc */                        \