| Message ID | 20231224-n-s5p-mfc-const-v1-9-a3b246470fe4@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: s5p-mfc: cleanups | expand |
> -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Sent: 24 December 2023 21:14 > To: Marek Szyprowski <m.szyprowski@samsung.com>; Andrzej Hajda > <andrzej.hajda@intel.com>; Mauro Carvalho Chehab > <mchehab@kernel.org> > Cc: Aakarsh Jain <aakarsh.jain@samsung.com>; linux-fsd@tesla.coma; linux- > samsung-soc@vger.kernel.org; Smitha T Murthy > <smithatmurthy@gmail.com>; linux-arm-kernel@lists.infradead.org; linux- > media@vger.kernel.org; linux-kernel@vger.kernel.org; Krzysztof Kozlowski > <krzysztof.kozlowski@linaro.org> > Subject: [PATCH 09/15] media: s5p-mfc: constify s5p_mfc_fmt structures > > Static "s5p_mfc_fmt" structures are not modified by the driver, so they can > be made const for code safety. > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- > drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h | 4 ++-- > drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c | 6 +++--- > drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c | 8 ++++---- > 3 files changed, 9 insertions(+), 9 deletions(-) > > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h > index fa556f27fa06..e9283020070e 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h > @@ -633,8 +633,8 @@ struct s5p_mfc_ctx { > unsigned int int_err; > wait_queue_head_t queue; > > - struct s5p_mfc_fmt *src_fmt; > - struct s5p_mfc_fmt *dst_fmt; > + const struct s5p_mfc_fmt *src_fmt; > + const struct s5p_mfc_fmt *dst_fmt; > > struct vb2_queue vq_src; > struct vb2_queue vq_dst; > diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > index 4dbe8792ac3d..2f664c7e9e4c 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c > @@ -27,7 +27,7 @@ > #include "s5p_mfc_opr.h" > #include "s5p_mfc_pm.h" > > -static struct s5p_mfc_fmt formats[] = { > +static const struct s5p_mfc_fmt formats[] = { > { > .fourcc = V4L2_PIX_FMT_NV12MT_16X16, > .codec_mode = S5P_MFC_CODEC_NONE, > @@ -163,7 +163,7 @@ static struct s5p_mfc_fmt formats[] = { #define > NUM_FORMATS ARRAY_SIZE(formats) > > /* Find selected format description */ > -static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int > t) > +static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, > +unsigned int t) > { > unsigned int i; > > @@ -387,7 +387,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, > struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, > struct v4l2_format *f) { > struct s5p_mfc_dev *dev = video_drvdata(file); > - struct s5p_mfc_fmt *fmt; > + const struct s5p_mfc_fmt *fmt; > > mfc_debug(2, "Type is %d\n", f->type); > if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { diff --git > a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c > b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c > index 4b4c129c09e7..d6a4b9c701eb 100644 > --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c > +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c > @@ -30,7 +30,7 @@ > #define DEF_SRC_FMT_ENC V4L2_PIX_FMT_NV12M > #define DEF_DST_FMT_ENC V4L2_PIX_FMT_H264 > > -static struct s5p_mfc_fmt formats[] = { > +static const struct s5p_mfc_fmt formats[] = { > { > .fourcc = V4L2_PIX_FMT_NV12MT_16X16, > .codec_mode = S5P_MFC_CODEC_NONE, > @@ -97,7 +97,7 @@ static struct s5p_mfc_fmt formats[] = { }; > > #define NUM_FORMATS ARRAY_SIZE(formats) -static struct s5p_mfc_fmt > *find_format(struct v4l2_format *f, unsigned int t) > +static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, > +unsigned int t) > { > unsigned int i; > > @@ -1394,7 +1394,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, > struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, > struct v4l2_format *f) { > struct s5p_mfc_dev *dev = video_drvdata(file); > - struct s5p_mfc_fmt *fmt; > + const struct s5p_mfc_fmt *fmt; > struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp; > > if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { @@ - > 2355,7 +2355,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops > = { > .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; > > -static int check_vb_with_fmt(struct s5p_mfc_fmt *fmt, struct vb2_buffer > *vb) > +static int check_vb_with_fmt(const struct s5p_mfc_fmt *fmt, struct > +vb2_buffer *vb) > { > int i; > > > -- > 2.34.1 Reviewed-by: Aakarsh Jain <aakarsh.jain@samsung.com> Thanks!
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h index fa556f27fa06..e9283020070e 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h @@ -633,8 +633,8 @@ struct s5p_mfc_ctx { unsigned int int_err; wait_queue_head_t queue; - struct s5p_mfc_fmt *src_fmt; - struct s5p_mfc_fmt *dst_fmt; + const struct s5p_mfc_fmt *src_fmt; + const struct s5p_mfc_fmt *dst_fmt; struct vb2_queue vq_src; struct vb2_queue vq_dst; diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c index 4dbe8792ac3d..2f664c7e9e4c 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c @@ -27,7 +27,7 @@ #include "s5p_mfc_opr.h" #include "s5p_mfc_pm.h" -static struct s5p_mfc_fmt formats[] = { +static const struct s5p_mfc_fmt formats[] = { { .fourcc = V4L2_PIX_FMT_NV12MT_16X16, .codec_mode = S5P_MFC_CODEC_NONE, @@ -163,7 +163,7 @@ static struct s5p_mfc_fmt formats[] = { #define NUM_FORMATS ARRAY_SIZE(formats) /* Find selected format description */ -static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t) +static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t) { unsigned int i; @@ -387,7 +387,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct s5p_mfc_dev *dev = video_drvdata(file); - struct s5p_mfc_fmt *fmt; + const struct s5p_mfc_fmt *fmt; mfc_debug(2, "Type is %d\n", f->type); if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c index 4b4c129c09e7..d6a4b9c701eb 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c @@ -30,7 +30,7 @@ #define DEF_SRC_FMT_ENC V4L2_PIX_FMT_NV12M #define DEF_DST_FMT_ENC V4L2_PIX_FMT_H264 -static struct s5p_mfc_fmt formats[] = { +static const struct s5p_mfc_fmt formats[] = { { .fourcc = V4L2_PIX_FMT_NV12MT_16X16, .codec_mode = S5P_MFC_CODEC_NONE, @@ -97,7 +97,7 @@ static struct s5p_mfc_fmt formats[] = { }; #define NUM_FORMATS ARRAY_SIZE(formats) -static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t) +static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t) { unsigned int i; @@ -1394,7 +1394,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct s5p_mfc_dev *dev = video_drvdata(file); - struct s5p_mfc_fmt *fmt; + const struct s5p_mfc_fmt *fmt; struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp; if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { @@ -2355,7 +2355,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = { .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; -static int check_vb_with_fmt(struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb) +static int check_vb_with_fmt(const struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb) { int i;
Static "s5p_mfc_fmt" structures are not modified by the driver, so they can be made const for code safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h | 4 ++-- drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c | 6 +++--- drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c | 8 ++++---- 3 files changed, 9 insertions(+), 9 deletions(-)