linux-kernel - [PATCH] ARM:net: an issue for k which is u32, never

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Message-ID: <513BECDA.3030803@asianux.com>
Date:	Sun, 10 Mar 2013 10:15:54 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>,
	mgherzan@...il.com, nschichan@...ebox.fr,
	daniel.borkmann@....ee.ethz.ch
CC:	David Miller <davem@...emloft.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org >> \"linux-kernel@...r.kernel.org\"" 
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] ARM:net: an issue for k which is u32, never < 0


  k is u32 which never < 0, need type cast, or cause issue.

Signed-off-by: Chen Gang <gang.chen@...anux.com>
---
 arch/arm/net/bpf_jit_32.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 6828ef6..a0bd8a7 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -576,7 +576,7 @@ load_ind:
 			/* x = ((*(frame + k)) & 0xf) << 2; */
 			ctx->seen |= SEEN_X | SEEN_DATA | SEEN_CALL;
 			/* the interpreter should deal with the negative K */
-			if (k < 0)
+			if ((int)k < 0)
 				return -1;
 			/* offset in r1: we might have to take the slow path */
 			emit_mov_i(r_off, k, ctx);
-- 
1.7.7.6
--
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