Revision ce816eb064c82ab96276969971a561db78e66164 authored by David Woodhouse on 16 September 2015, 11:35:00 UTC, committed by David S. Miller on 18 September 2015, 04:29:07 UTC
A comment in include/linux/skbuff.h says that: * Various parts of the networking layer expect at least 32 bytes of * headroom, you should not reduce this. This was demonstrated by a panic when handling fragmented IPv6 packets: http://marc.info/?l=linux-netdev&m=144236093519172&w=2 It's not entirely clear if that comment is still valid — and if it is, perhaps netif_rx() ought to be enforcing it with a warning. But either way, it is rather stupid from a performance point of view for us to be receiving packets into a buffer which doesn't have enough room to prepend an Ethernet header — it means that *every* incoming packet is going to be need to be reallocated. So let's fix that. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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| File | Mode | Size |
|---|---|---|
| .gitignore | -rw-r--r-- | 151 bytes |
| Kconfig | -rw-r--r-- | 2.9 KB |
| Makefile | -rw-r--r-- | 2.3 KB |
| gen_init_cpio.c | -rw-r--r-- | 12.7 KB |
| initramfs_data.S | -rw-r--r-- | 1.3 KB |
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