V4L/DVB: v4l2-common: Move v4l2_find_nearest_format from videodev2.h to v4l2-common.h

This function is an internal API and belongs in v4l2-common.h, not
videodev.h. The return pointer and probe argument should be const as well.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 14 insertions, 11 deletions

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 31ae1a138613..cef80dab1a0d 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -677,12 +677,13 @@ int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info)
 }
 EXPORT_SYMBOL_GPL(v4l_fill_dv_preset_info);
 
-struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe,
-                                                       s32 width, s32 height)
+const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
+                const struct v4l2_discrete_probe *probe,
+                s32 width, s32 height)
 {
         int i;
         u32 error, min_error = UINT_MAX;
-        struct v4l2_frmsize_discrete *size, *best = NULL;
+        const struct v4l2_frmsize_discrete *size, *best = NULL;
 
         if (!probe)
                 return best;
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 957d5b093847..b06479f63271 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -397,14 +397,6 @@ struct v4l2_frmsize_discrete {
         __u32                   height;         /* Frame height [pixel] */
 };
 
-struct v4l2_discrete_probe {
-        const struct v4l2_frmsize_discrete      *sizes;
-        int                                     num_sizes;
-};
-
-struct v4l2_frmsize_discrete *v4l2_find_nearest_format(struct v4l2_discrete_probe *probe,
-                                                       s32 width, s32 height);
-
 struct v4l2_frmsize_stepwise {
         __u32                   min_width;      /* Minimum frame width [pixel] */
         __u32                   max_width;      /* Maximum frame width [pixel] */
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 98b32645e5a7..41dd480e45f1 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -232,4 +232,14 @@ void v4l_bound_align_image(unsigned int *w, unsigned int wmin,
                            unsigned int hmax, unsigned int halign,
                            unsigned int salign);
 int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info);
+
+struct v4l2_discrete_probe {
+        const struct v4l2_frmsize_discrete      *sizes;
+        int                                     num_sizes;
+};
+
+const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
+                const struct v4l2_discrete_probe *probe,
+                s32 width, s32 height);
+
 #endif /* V4L2_COMMON_H_ */