From: Andreas Schwab <schwab@linux-m68k.org>
Date: Sat, 11 Sep 2010 01:08:58 +0000 (+0000)
Subject: net/de4x5: remove undefined operations
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1570475a477b46cb16b2a0dd73c06974c8d2b550;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git
net/de4x5: remove undefined operations
Modifying an object twice without an intervening sequence point is
undefined.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 75a64c88cf7a..4f7503063446 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -1448,7 +1448,7 @@ de4x5_sw_reset(struct net_device *dev)
status = -EIO;
}
- lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
lp->tx_old = lp->tx_new;
return status;
@@ -1506,7 +1506,7 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
lp->stats.tx_bytes += skb->len;
outl(POLL_DEMAND, DE4X5_TPD);/* Start the TX */
- lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
if (TX_BUFFS_AVAIL) {
netif_start_queue(dev); /* Another pkt may be queued */
@@ -1657,7 +1657,7 @@ de4x5_rx(struct net_device *dev)
}
/* Change buffer ownership for this frame, back to the adapter */
- for (;lp->rx_old!=entry;lp->rx_old=(++lp->rx_old)%lp->rxRingSize) {
+ for (;lp->rx_old!=entry;lp->rx_old=(lp->rx_old + 1)%lp->rxRingSize) {
lp->rx_ring[lp->rx_old].status = cpu_to_le32(R_OWN);
barrier();
}
@@ -1668,7 +1668,7 @@ de4x5_rx(struct net_device *dev)
/*
** Update entry information
*/
- lp->rx_new = (++lp->rx_new) % lp->rxRingSize;
+ lp->rx_new = (lp->rx_new + 1) % lp->rxRingSize;
}
return 0;
@@ -1726,7 +1726,7 @@ de4x5_tx(struct net_device *dev)
}
/* Update all the pointers */
- lp->tx_old = (++lp->tx_old) % lp->txRingSize;
+ lp->tx_old = (lp->tx_old + 1) % lp->txRingSize;
}
/* Any resources available? */
@@ -1801,7 +1801,7 @@ de4x5_rx_ovfc(struct net_device *dev)
for (; (s32)le32_to_cpu(lp->rx_ring[lp->rx_new].status)>=0;) {
lp->rx_ring[lp->rx_new].status = cpu_to_le32(R_OWN);
- lp->rx_new = (++lp->rx_new % lp->rxRingSize);
+ lp->rx_new = (lp->rx_new + 1) % lp->rxRingSize;
}
outl(omr, DE4X5_OMR);
@@ -1932,7 +1932,7 @@ set_multicast_list(struct net_device *dev)
load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET |
SETUP_FRAME_LEN, (struct sk_buff *)1);
- lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */
dev->trans_start = jiffies; /* prevent tx timeout */
}
@@ -3568,7 +3568,7 @@ ping_media(struct net_device *dev, int msec)
lp->tmp = lp->tx_new; /* Remember the ring position */
load_packet(dev, lp->frame, TD_LS | TD_FS | sizeof(lp->frame), (struct sk_buff *)1);
- lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
outl(POLL_DEMAND, DE4X5_TPD);
}
@@ -5417,7 +5417,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
/* Set up the descriptor and give ownership to the card */
load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET |
SETUP_FRAME_LEN, (struct sk_buff *)1);
- lp->tx_new = (++lp->tx_new) % lp->txRingSize;
+ lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */
netif_wake_queue(dev); /* Unlock the TX ring */
break;