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author | Julia Lawall <Julia.Lawall@lip6.fr> | 2017-08-04 15:09:46 +0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-20 15:06:58 +0300 |
commit | 177267a9500c2739d0413706f5a32854322ea9aa (patch) | |
tree | 4c1da84ace16c03dcadeb421548d34d8862ef542 /drivers/media/usb/tm6000/tm6000-video.c | |
parent | 6688324841d9fdc53bdb0aef88ab6352a7185513 (diff) | |
download | linux-177267a9500c2739d0413706f5a32854322ea9aa.tar.xz |
media: cx231xx: constify videobuf_queue_ops structures
These videobuf_queue_ops structures are only passed as the second
argument to videobuf_queue_vmalloc_init, which is declared as const.
Thus the videobuf_queue_ops structures themselves can be const.
Done with the help of Coccinelle.
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct videobuf_queue_ops i@p = { ... };
@ok1@
identifier r.i;
expression e1;
position p;
@@
videobuf_queue_vmalloc_init(e1,&i@p,...)
@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct videobuf_queue_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct videobuf_queue_ops i = { ... };
// </smpl>
In the first case, there is a second commented call to
videobuf_queue_sg_init with the structure as the second argument. If that
code will be uncommented, the const will remain correct, because the second
parameter of that function is also const.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/usb/tm6000/tm6000-video.c')
0 files changed, 0 insertions, 0 deletions