linux-kernel - [PATCH 1/9] kgdb,x86: remove redundant test

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Date:	Fri, 11 Dec 2009 09:36:09 -0600
From:	Jason Wessel <jason.wessel@...driver.com>
To:	torvalds@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, kgdb-bugreport@...ts.sourceforge.net,
	Roel Kluin <roel.kluin@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jason Wessel <jason.wessel@...driver.com>
Subject: [PATCH 1/9] kgdb,x86: remove redundant test

From: Roel Kluin <roel.kluin@...il.com>

The for loop starts with a breakno of 0, and ends when it's 4. so
this test is always true.

CC: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Roel Kluin <roel.kluin@...il.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Jason Wessel <jason.wessel@...driver.com>
---
 arch/x86/kernel/kgdb.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 20a5b36..f93d015 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -220,8 +220,7 @@ static void kgdb_correct_hw_break(void)
 			dr7 |= ((breakinfo[breakno].len << 2) |
 				 breakinfo[breakno].type) <<
 			       ((breakno << 2) + 16);
-			if (breakno >= 0 && breakno <= 3)
-				set_debugreg(breakinfo[breakno].addr, breakno);
+			set_debugreg(breakinfo[breakno].addr, breakno);
 
 		} else {
 			if ((dr7 & breakbit) && !breakinfo[breakno].enabled) {
-- 
1.6.4.rc1

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