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b53f35a809
A bunch of MTU-related cleanups in the network code. First, there is the addition of the notion of a maximally-sized packet, which is the MTU plus headers. This is used to size the skb that will receive a packet. This allows ether_adjust_skb to go away, as it was used to resize the skb after it was allocated. Since the skb passed into the low-level read routine is no longer resized, and possibly reallocated, there, they (and the write routines) don't need to get an sk_buff **. They just need the sk_buff * now. The callers of ether_adjust_skb still need to do the skb_put, so that's now inlined. The MAX_PACKET definitions in most of the drivers are gone. The set_mtu methods were all the same and did nothing, so they can be removed. The ethertap driver had a typo which doubled the size of the packet rather than adding two bytes to it. It also wasn't defining its setup_size, causing a zero-byte kmalloc and crash when the invalid pointer returned from kmalloc was dereferenced. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| chan_kern.c | ||
| chan_user.c | ||
| cow_sys.h | ||
| cow_user.c | ||
| cow.h | ||
| daemon_kern.c | ||
| daemon_user.c | ||
| daemon.h | ||
| fd.c | ||
| harddog_kern.c | ||
| harddog_user.c | ||
| hostaudio_kern.c | ||
| line.c | ||
| Makefile | ||
| mcast_kern.c | ||
| mcast_user.c | ||
| mcast.h | ||
| mconsole_kern.c | ||
| mconsole_user.c | ||
| mmapper_kern.c | ||
| net_kern.c | ||
| net_user.c | ||
| null.c | ||
| pcap_kern.c | ||
| pcap_user.c | ||
| pcap_user.h | ||
| port_kern.c | ||
| port_user.c | ||
| port.h | ||
| pty.c | ||
| random.c | ||
| slip_common.c | ||
| slip_common.h | ||
| slip_kern.c | ||
| slip_user.c | ||
| slip.h | ||
| slirp_kern.c | ||
| slirp_user.c | ||
| slirp.h | ||
| ssl.c | ||
| ssl.h | ||
| stderr_console.c | ||
| stdio_console.c | ||
| stdio_console.h | ||
| tty.c | ||
| ubd_kern.c | ||
| ubd_user.c | ||
| vde_kern.c | ||
| vde_user.c | ||
| vde.h | ||
| xterm_kern.c | ||
| xterm.c | ||
| xterm.h | ||