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authorDavide Caratti <dcaratti@redhat.com>2017-05-18 15:44:37 +0200
committerDavid S. Miller <davem@davemloft.net>2017-05-19 19:21:29 -0400
commit9617813dba5b6c112922c60cd2bc57c6e11ae907 (patch)
treece7dfcb633751f2aaed7fe3b19988aa88f401270 /net/sctp/offload.c
parent6f5b24eed0278136c29c27f2a7b3a2b6a202ac68 (diff)
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 'net/sctp/offload.c')
-rw-r--r--net/sctp/offload.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/sctp/offload.c b/net/sctp/offload.c
index 4f5a2b580aa5..b67198429db5 100644
--- a/net/sctp/offload.c
+++ b/net/sctp/offload.c
@@ -98,6 +98,11 @@ static const struct net_offload sctp6_offload = {
},
};
+static const struct skb_checksum_ops crc32c_csum_ops = {
+ .update = sctp_csum_update,
+ .combine = sctp_csum_combine,
+};
+
int __init sctp_offload_init(void)
{
int ret;
@@ -110,6 +115,7 @@ int __init sctp_offload_init(void)
if (ret)
goto ipv4;
+ crc32c_csum_stub = &crc32c_csum_ops;
return ret;
ipv4: