From mboxrd@z Thu Jan 1 00:00:00 1970 From: michal.simek@xilinx.com (Michal Simek) Date: Wed, 12 Feb 2014 16:55:36 +0100 Subject: [PATCH 02/14] net: axienet: Fix compilation warnings In-Reply-To: References: Message-ID: <74d9ca89c57b2467bc8b2c669ac09f7e5f74b1b7.1392220536.git.michal.simek@xilinx.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Warning log: xilinx_axienet_main.c: In function 'axienet_start_xmit_done': xilinx_axienet_main.c:617:16: warning: operation on 'lp->tx_bd_ci' may be undefined [-Wsequence-point] xilinx_axienet_main.c: In function 'axienet_start_xmit': xilinx_axienet_main.c:703:18: warning: operation on 'lp->tx_bd_tail' may be undefined [-Wsequence-point] xilinx_axienet_main.c:719:17: warning: operation on 'lp->tx_bd_tail' may be undefined [-Wsequence-point] xilinx_axienet_main.c: In function 'axienet_recv': xilinx_axienet_main.c:792:16: warning: operation on 'lp->rx_bd_ci' may be undefined [-Wsequence-point] xilinx_axienet_main.c: In function 'axienet_of_probe': xilinx_axienet_main.c:1501:21: warning: unused variable 'rc' [-Wunused-variable] Signed-off-by: Michal Simek --- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 9fb8ab2..4bfdf8c 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -601,7 +601,8 @@ static void axienet_start_xmit_done(struct net_device *ndev) size += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK; packets++; - lp->tx_bd_ci = ++lp->tx_bd_ci % TX_BD_NUM; + ++lp->tx_bd_ci; + lp->tx_bd_ci %= TX_BD_NUM; cur_p = &lp->tx_bd_v[lp->tx_bd_ci]; status = cur_p->status; } @@ -687,7 +688,8 @@ static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev) skb_headlen(skb), DMA_TO_DEVICE); for (ii = 0; ii < num_frag; ii++) { - lp->tx_bd_tail = ++lp->tx_bd_tail % TX_BD_NUM; + ++lp->tx_bd_tail; + lp->tx_bd_tail %= TX_BD_NUM; cur_p = &lp->tx_bd_v[lp->tx_bd_tail]; frag = &skb_shinfo(skb)->frags[ii]; cur_p->phys = dma_map_single(ndev->dev.parent, @@ -703,7 +705,8 @@ static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev) tail_p = lp->tx_bd_p + sizeof(*lp->tx_bd_v) * lp->tx_bd_tail; /* Start the transfer */ axienet_dma_out32(lp, XAXIDMA_TX_TDESC_OFFSET, tail_p); - lp->tx_bd_tail = ++lp->tx_bd_tail % TX_BD_NUM; + ++lp->tx_bd_tail; + lp->tx_bd_tail %= TX_BD_NUM; return NETDEV_TX_OK; } @@ -775,7 +778,8 @@ static void axienet_recv(struct net_device *ndev) cur_p->status = 0; cur_p->sw_id_offset = (u32) new_skb; - lp->rx_bd_ci = ++lp->rx_bd_ci % RX_BD_NUM; + ++lp->rx_bd_ci; + lp->rx_bd_ci %= RX_BD_NUM; cur_p = &lp->rx_bd_v[lp->rx_bd_ci]; } -- 1.8.2.3 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: not available URL: