linux-kernel - [patch -resend] [patch] tlb_uv: remove some dead code in parse_tunables

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Date:	Wed, 27 Jun 2012 12:11:42 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	x86@...nel.org, Cliff Wickman <cpw@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jack Steiner <steiner@....com>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch -resend] [patch] tlb_uv: remove some dead code in
 parse_tunables_write()

This code isn't reachable anymore after f073cc8f39 "x86, UV: Clean up
uv_tlb.c" because we will always hit a continue statement.  This causes
a Smatch message:

arch/x86/platform/uv/tlb_uv.c:1531 parse_tunables_write()
	info: ignoring unreachable code.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
I have cleaned up the commit message.  This was originally sent on
Sun, 7 Aug 2011.

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 59880af..d625792 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1528,8 +1528,6 @@ static int parse_tunables_write(struct bau_control *bcp, char *instr,
 				*tunables[cnt].tunp = val;
 			continue;
 		}
-		if (q == p)
-			break;
 	}
 	return 0;
 }
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