From e743d31312d00932391b123dfac3324d2b9e8c81 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 14 Apr 2010 15:59:40 -0700 Subject: drivers: net: use skb_headlen() replaces (skb->len - skb->data_len) occurrences by skb_headlen(skb) Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/3c59x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/3c59x.c') diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index 5f92fdb..9752530 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -2129,8 +2129,8 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) int i; vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, - skb->len-skb->data_len, PCI_DMA_TODEVICE)); - vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len); + skb_headlen(skb), PCI_DMA_TODEVICE)); + vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb_headlen(skb)); for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; -- cgit v1.1 From 1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 10 May 2010 05:01:31 -0700 Subject: net: trans_start cleanups Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/3c59x.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/net/3c59x.c') diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index 9752530..dab2afa 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -1917,7 +1917,7 @@ static void vortex_tx_timeout(struct net_device *dev) /* Issue Tx Enable */ iowrite16(TxEnable, ioaddr + EL3_CMD); - dev->trans_start = jiffies; + dev->trans_start = jiffies; /* prevent tx timeout */ /* Switch to register set 7 for normal use. */ EL3WINDOW(7); @@ -2063,7 +2063,6 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - dev->trans_start = jiffies; /* Clear the Tx status stack. */ { @@ -2174,7 +2173,6 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) } iowrite16(DownUnstall, ioaddr + EL3_CMD); spin_unlock_irqrestore(&vp->lock, flags); - dev->trans_start = jiffies; return NETDEV_TX_OK; } -- cgit v1.1 From a4b770972b8f819e408d7cc3ae9637e15bff62f6 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 14 May 2010 00:19:28 -0700 Subject: drivers/net: Remove unnecessary returns from void function()s This patch removes from drivers/net/ all the unnecessary return; statements that precede the last closing brace of void functions. It does not remove the returns that are immediately preceded by a label as gcc doesn't like that. It also does not remove null void functions with return. Done via: $ grep -rP --include=*.[ch] -l "return;\n}" net/ | \ xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }' with some cleanups by hand. Compile tested x86 allmodconfig only. Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- drivers/net/3c59x.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/net/3c59x.c') diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index dab2afa..d75803e 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -1855,7 +1855,6 @@ leave_media_alone: mod_timer(&vp->timer, RUN_AT(next_tick)); if (vp->deferred) iowrite16(FakeIntr, ioaddr + EL3_CMD); - return; } static void vortex_tx_timeout(struct net_device *dev) @@ -2798,7 +2797,6 @@ static void update_stats(void __iomem *ioaddr, struct net_device *dev) } EL3WINDOW(old_window >> 13); - return; } static int vortex_nway_reset(struct net_device *dev) @@ -3120,7 +3118,6 @@ static void mdio_write(struct net_device *dev, int phy_id, int location, int val iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr); mdio_delay(); } - return; } /* ACPI: Advanced Configuration and Power Interface. */ -- cgit v1.1