diff options
| author | Ioana-Ruxandra Stăncioi <stancioi@google.com> | 2020-08-03 07:33:33 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-08-03 17:57:40 -0700 |
| commit | 88fab21c691bb1ff164e540735237a385e3afeaf (patch) | |
| tree | 99119721f18bc9b817222c48b31e3a6dba356603 /net | |
| parent | 730e700e2c19d87e578ff0e7d8cb1d4a02b036d2 (diff) | |
| download | lwn-88fab21c691bb1ff164e540735237a385e3afeaf.tar.gz lwn-88fab21c691bb1ff164e540735237a385e3afeaf.zip | |
seg6_iptunnel: Refactor seg6_lwt_headroom out of uapi header
Refactor the function seg6_lwt_headroom out of the seg6_iptunnel.h uapi
header, because it is only used in seg6_iptunnel.c. Moreover, it is only
used in the kernel code, as indicated by the "#ifdef __KERNEL__".
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Ioana-Ruxandra Stăncioi <stancioi@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/seg6_iptunnel.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c index e0e9f48ab14f..897fa59c47de 100644 --- a/net/ipv6/seg6_iptunnel.c +++ b/net/ipv6/seg6_iptunnel.c @@ -27,6 +27,23 @@ #include <net/seg6_hmac.h> #endif +static size_t seg6_lwt_headroom(struct seg6_iptunnel_encap *tuninfo) +{ + int head = 0; + + switch (tuninfo->mode) { + case SEG6_IPTUN_MODE_INLINE: + break; + case SEG6_IPTUN_MODE_ENCAP: + head = sizeof(struct ipv6hdr); + break; + case SEG6_IPTUN_MODE_L2ENCAP: + return 0; + } + + return ((tuninfo->srh->hdrlen + 1) << 3) + head; +} + struct seg6_lwt { struct dst_cache cache; struct seg6_iptunnel_encap tuninfo[]; |