[PATCH] net: macb: Remove redundant assignment to w0

[Jiapeng Chong]

Variable w0 is set to zero but these values is not used as it is
overwritten later on, hence redundant assignment can be removed.

Cleans up the following clang-analyzer warning:

drivers/net/ethernet/cadence/macb_main.c:3265:3: warning: Value stored
to 'w0' is never read [clang-analyzer-deadcode.DeadStores].

drivers/net/ethernet/cadence/macb_main.c:3251:3: warning: Value stored
to 'w0' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci at linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong at linux.alibaba.com>
---
 drivers/net/ethernet/cadence/macb_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 0f6a6cb..741b2e3 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3248,7 +3248,6 @@ static void gem_prog_cmp_regs(struct macb *bp, struct ethtool_rx_flow_spec *fs)
 	/* ignore field if any masking set */
 	if (tp4sp_m->ip4src == 0xFFFFFFFF) {
 		/* 1st compare reg - IP source address */
-		w0 = 0;
 		w1 = 0;
 		w0 = tp4sp_v->ip4src;
 		w1 = GEM_BFINS(T2DISMSK, 1, w1); /* 32-bit compare */
@@ -3262,7 +3261,6 @@ static void gem_prog_cmp_regs(struct macb *bp, struct ethtool_rx_flow_spec *fs)
 	/* ignore field if any masking set */
 	if (tp4sp_m->ip4dst == 0xFFFFFFFF) {
 		/* 2nd compare reg - IP destination address */
-		w0 = 0;
 		w1 = 0;
 		w0 = tp4sp_v->ip4dst;
 		w1 = GEM_BFINS(T2DISMSK, 1, w1); /* 32-bit compare */
-- 
1.8.3.1