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Date: Sun, 6 Aug 2017 10:25:18 +0200 From: Julia Lawall <Julia.Lawall@...6.fr> To: Mauro Carvalho Chehab <mchehab@...nel.org> Cc: bhumirks@...il.com, kernel-janitors@...r.kernel.org, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 09/12] [media] media: mx2-emmaprp: constify v4l2_m2m_ops structures The v4l2_m2m_ops structures are only passed as the only argument to v4l2_m2m_init, which is declared as const. Thus the v4l2_m2m_ops structures themselves can be const. Done with the help of Coccinelle. // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct v4l2_m2m_ops i@p = { ... }; @ok1@ identifier r.i; position p; @@ v4l2_m2m_init(&i@p) @bad@ position p != {r.p,ok1.p}; identifier r.i; struct v4l2_m2m_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct v4l2_m2m_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr> --- drivers/media/platform/mx2_emmaprp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/mx2_emmaprp.c b/drivers/media/platform/mx2_emmaprp.c index 03e47e0..7fd209e 100644 --- a/drivers/media/platform/mx2_emmaprp.c +++ b/drivers/media/platform/mx2_emmaprp.c @@ -882,7 +882,7 @@ static int emmaprp_mmap(struct file *file, struct vm_area_struct *vma) .vfl_dir = VFL_DIR_M2M, }; -static struct v4l2_m2m_ops m2m_ops = { +static const struct v4l2_m2m_ops m2m_ops = { .device_run = emmaprp_device_run, .job_abort = emmaprp_job_abort, .lock = emmaprp_lock,
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