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| author |   Jakub Kicinski <kuba@kernel.org> | 2023-03-20 18:41:14 -0700 |
|---|---|---|
| committer |   Martin KaFai Lau <martin.lau@kernel.org> | 2023-03-20 21:57:49 -0700 |
| commit | b94e032b7ad6318b36615f0e0cc3b0d61a5531e8 (patch) | |
| tree | b895dc3f9d3caa60a32f5b28849fd8e141506cad /net/core | |
| parent | net: skbuff: rename __pkt_vlan_present_offset to __mono_tc_offset (diff) | |
| download | wireguard-linux-b94e032b7ad6318b36615f0e0cc3b0d61a5531e8.tar.xz wireguard-linux-b94e032b7ad6318b36615f0e0cc3b0d61a5531e8.zip | |
net: skbuff: reorder bytes 2 and 3 of the bitfield
BPF needs to know the offsets of fields it tries to access.
Zero-length fields are added to make offsetof() work.
This unfortunately partitions the bitfield (fields across
the zero-length members can't be coalesced).
Reorder bytes 2 and 3, BPF needs to know the offset of fields
previously in byte 3 and some fields in byte 2 should really
be optional.
The two bytes are always in the same cacheline so it should
not matter.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230321014115.997841-3-kuba@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions