A few bytes can be shaved out of can raw's struct uniqframe and struct
raw_sock.
Patch #1 reorders struct uniqframe fields to save 8 bytes.
Patch #2 and #3 modify struct raw_sock to use bitfields and to reorder
its fields to save 24 bytes in total.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
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Changes in v2:
- in patch #2 also add raw_sock->bound and raw_sock->join_filters to
the bitfield.
- add Oliver's Ack tags.
Link to v1: https://lore.kernel.org/r/20250915-can-raw-repack-v1-0-5ea293bc6d33@kernel.org
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Vincent Mailhol (3):
can: raw: reorder struct uniqframe's members to optimise packing
can: raw: use bitfields to store flags in struct raw_sock
can: raw: reorder struct raw_sock's members to optimise packing
net/can/raw.c | 65 ++++++++++++++++++++++++++++++++++-------------------------
1 file changed, 38 insertions(+), 27 deletions(-)
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base-commit: 5e87fdc37f8dc619549d49ba5c951b369ce7c136
change-id: 20250915-can-raw-repack-c21aab25cc11
Best regards,
--
Vincent Mailhol <mailhol@kernel.org>