diff options
| author | Davide Caratti | 2017-05-18 15:44:37 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-05-20 01:21:29 +0200 |
| commit | 9617813dba5b6c112922c60cd2bc57c6e11ae907 (patch) | |
| tree | ce7dfcb633751f2aaed7fe3b19988aa88f401270 /include/linux/skbuff.h | |
| parent | tcp: warn on negative reordering values (diff) | |
| download | kernel-qcow2-linux-9617813dba5b6c112922c60cd2bc57c6e11ae907.tar.gz kernel-qcow2-linux-9617813dba5b6c112922c60cd2bc57c6e11ae907.tar.xz kernel-qcow2-linux-9617813dba5b6c112922c60cd2bc57c6e11ae907.zip | |
skbuff: add stub to help computing crc32c on SCTP packets
sctp_compute_checksum requires crc32c symbol (provided by libcrc32c), so
it can't be used in net core. Like it has been done previously with other
symbols (e.g. ipv6_dst_lookup), introduce a stub struct skb_checksum_ops
to allow computation of crc32c checksum in net core after sctp.ko (and thus
libcrc32c) has been loaded.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 7c0cb2ce8b01..b1f46a0d18e2 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3076,6 +3076,8 @@ struct skb_checksum_ops { __wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len); }; +extern const struct skb_checksum_ops *crc32c_csum_stub __read_mostly; + __wsum __skb_checksum(const struct sk_buff *skb, int offset, int len, __wsum csum, const struct skb_checksum_ops *ops); __wsum skb_checksum(const struct sk_buff *skb, int offset, int len, |