media: usbtv: constify static structs

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Constify two static structs which are never modified to allow the
compiler to put them in read-only memory.

The only usage of norm_params is only read from it in
usbtv_configure_for_norm(). Making it const shrinks the resulting
ko-file with 300 bytes (tested with gcc 10).

The only usage of usbtv_ioctl_ops is to put its address to the ioctl_ops
field in the video_device struct. Making it const moves ~1kb to
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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Rikard Falkeborn 2021-02-06 22:21:39 +01:00 • committed by Mauro Carvalho Chehab

parent 6b45fbfa53

commit 6a49401e15

1 changed files with 3 additions and 3 deletions

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drivers/media/usb/usbtv/usbtv-video.c

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