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| author |   Herbert Xu <herbert@gondor.apana.org.au> | 2006-06-27 13:33:10 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-06-29 16:57:59 -0700 |
| commit | 3d3a85337937bb5e3db676eeb4f3bf7f02533b44 (patch) | |
| tree | 76cbcd89528bbefa0d586be55b15aeed322b8738 /net/core/dev.c | |
| parent | [TCP]: Export accept queue len of a TCP listening socket via rx_queue (diff) | |
| download | linux-dev-3d3a85337937bb5e3db676eeb4f3bf7f02533b44.tar.xz linux-dev-3d3a85337937bb5e3db676eeb4f3bf7f02533b44.zip | |
[NET]: Make illegal_highdma more anal
Rather than having illegal_highdma as a macro when HIGHMEM is off, we
can turn it into an inline function that returns zero. This will catch
callers that give it bad arguments.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 4f2014994a84..08976b08df5b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1239,7 +1239,6 @@ void netdev_rx_csum_fault(struct net_device *dev) EXPORT_SYMBOL(netdev_rx_csum_fault); #endif -#ifdef CONFIG_HIGHMEM /* Actually, we should eliminate this check as soon as we know, that: * 1. IOMMU is present and allows to map all the memory. * 2. No high memory really exists on this machine. @@ -1247,6 +1246,7 @@ EXPORT_SYMBOL(netdev_rx_csum_fault); static inline int illegal_highdma(struct net_device *dev, struct sk_buff *skb) { +#ifdef CONFIG_HIGHMEM int i; if (dev->features & NETIF_F_HIGHDMA) @@ -1256,11 +1256,9 @@ static inline int illegal_highdma(struct net_device *dev, struct sk_buff *skb) if (PageHighMem(skb_shinfo(skb)->frags[i].page)) return 1; +#endif return 0; } -#else -#define illegal_highdma(dev, skb) (0) -#endif struct dev_gso_cb { void (*destructor)(struct sk_buff *skb); |