Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757359Ab1FJNJd (ORCPT ); Fri, 10 Jun 2011 09:09:33 -0400 Received: from grimli.r00tworld.net ([83.169.44.195]:43065 "EHLO mail.r00tworld.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757039Ab1FJNJ3 (ORCPT ); Fri, 10 Jun 2011 09:09:29 -0400 From: Mathias Krause To: David Howells Cc: Andrew Morton , Linus Torvalds , linux-kernel@vger.kernel.org, Mathias Krause Subject: [PATCH] frv, exec: remove redundant set_fs(USER_DS) Date: Fri, 10 Jun 2011 15:09:28 +0200 Message-Id: <1307711368-7279-1-git-send-email-minipli@googlemail.com> X-Mailer: git-send-email 1.5.6.5 In-Reply-To: References: References: <1307642718-22257-1-git-send-email-minipli@googlemail.com> <20110609155630.0f734351.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1468 Lines: 47 The address limit is already set in flush_old_exec() so those calls to set_fs(USER_DS) are redundant. Also removed the dead code in flush_thread(). Signed-off-by: Mathias Krause --- arch/frv/include/asm/processor.h | 1 - arch/frv/kernel/process.c | 5 +---- 2 files changed, 1 insertions(+), 5 deletions(-) diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h index 4b789ab..81c2e27 100644 --- a/arch/frv/include/asm/processor.h +++ b/arch/frv/include/asm/processor.h @@ -97,7 +97,6 @@ extern struct task_struct *__kernel_current_task; */ #define start_thread(_regs, _pc, _usp) \ do { \ - set_fs(USER_DS); /* reads from user space */ \ __frame = __kernel_frame0_ptr; \ __frame->pc = (_pc); \ __frame->psr &= ~PSR_S; \ diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 9d35975..3901df1 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -143,10 +143,7 @@ void machine_power_off(void) void flush_thread(void) { -#if 0 //ndef NO_FPU - unsigned long zero = 0; -#endif - set_fs(USER_DS); + /* nothing */ } inline unsigned long user_stack(const struct pt_regs *regs) -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/