diff options
| author | Xie He <xie.he.0141@gmail.com> | 2020-10-07 11:32:03 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-10 12:05:05 -0700 |
| commit | df41c19abbeaae6e24c8e31cff5fdb48632be380 (patch) | |
| tree | db693470e851226ab41fb2131e0257d01c0ecabc /tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c | |
| parent | e0b2e0d8e6692ee488387aba871d0b70e1ed400a (diff) | |
drivers/net/wan/hdlc_fr: Move the skb_headroom check out of fr_hard_header
Move the skb_headroom check out of fr_hard_header and into pvc_xmit.
This has two benefits:
1. Originally we only do this check for skbs sent by users on Ethernet-
emulating PVC devices. After the change we do this check for skbs sent on
normal PVC devices, too.
(Also add a comment to make it clear that this is only a protection
against upper layers that don't take dev->needed_headroom into account.
Such upper layers should be rare and I believe they should be fixed.)
2. After the change we can simplify the parameter list of fr_hard_header.
We no longer need to use a pointer to pointers (skb_p) because we no
longer need to replace the skb inside fr_hard_header.
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c')
0 files changed, 0 insertions, 0 deletions