ARM:net: an issue for k which is u32, never < 0

Chen Gang · davem330 · commit 45549a68a592 · 2013-03-12T11:33:05.000-04:00
k is u32 which never &lt; 0, need type cast, or cause issue.

Signed-off-by: Chen Gang &lt;gang.chen@asianux.com&gt;
Acked-by: Russell King &lt;rmk+kernel@arm.linux.org.uk&gt;
Acked-by: Mircea Gherzan &lt;mgherzan@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
@@ -576,7 +576,7 @@ static int build_body(struct jit_ctx *ctx)
 			/* 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);
