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[media] videodev2: Set vb2_rect's width and height as unsigned

Browse source 
As discussed on the media summit 2013, there is no reason for the width
and height to be signed.

Therefore this patch is an attempt to convert those fields from __s32 to
__u32.

Signed-off-by: Ricardo Ribalda Delgado <[email protected]>
Acked-by: Sakari Ailus <[email protected]> (documentation and smiapp)
Acked-by: Lad, Prabhakar <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Ricardo Ribalda 2013-11-26 05:31:42 -03:00 • committed by Mauro Carvalho Chehab
commit f90580ca01
15 changed files with 108 additions and 85 deletions
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12
Documentation/DocBook/media/v4l/compat.xml
View file

@ -2523,6 +2523,18 @@ that used it. It was originally scheduled for removal in 2.6.35.
</orderedlist>
</section>
<section>
<title>V4L2 in Linux 3.14</title>
<orderedlist>
<listitem>
<para> In struct <structname>v4l2_rect</structname>, the type
of <structfield>width</structfield> and <structfield>height</structfield>
fields changed from _s32 to _u32.
</para>
</listitem>
</orderedlist>
</section>
<section id="other">
<title>Relation of V4L2 to other Linux multimedia APIs</title>

9
Documentation/DocBook/media/v4l/dev-overlay.xml
View file

@ -346,17 +346,14 @@ rectangle, in pixels.</entry>
rectangle, in pixels. Offsets increase to the right and down.</entry>
</row>
<row>
<entry>__s32</entry>
<entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the rectangle, in pixels.</entry>
</row>
<row>
<entry>__s32</entry>
<entry>__u32</entry>
<entry><structfield>height</structfield></entry>
<entry>Height of the rectangle, in pixels. Width and
height cannot be negative, the fields are signed for hysterical
reasons. <!-- video4linux-[email protected] on 22 Oct 2002 subject
"Re:[V4L][patches!] Re:v4l2/kernel-2.5" --></entry>
<entry>Height of the rectangle, in pixels.</entry>
</row>
</tbody>
</tgroup>

10
Documentation/DocBook/media/v4l/v4l2.xml
View file

@ -140,6 +140,14 @@ structs, ioctls) must be noted in more detail in the history chapter
(compat.xml), along with the possible impact on existing drivers and
applications. -->
<revision>
<revnumber>3.14</revnumber>
<date>2013-11-25</date>
<authorinitials>rr</authorinitials>
<revremark>Set width and height as unsigned on v4l2_rect.
</revremark>
</revision>
<revision>
<revnumber>3.11</revnumber>
<date>2013-05-26</date>
@ -501,7 +509,7 @@ and discussions on the V4L mailing list.</revremark>
</partinfo>
<title>Video for Linux Two API Specification</title>
<subtitle>Revision 3.11</subtitle>
<subtitle>Revision 3.14</subtitle>
<chapter id="common">
&sub-common;

10
Documentation/DocBook/media/v4l/vidioc-cropcap.xml
View file

@ -133,18 +133,14 @@ rectangle, in pixels.</entry>
rectangle, in pixels.</entry>
</row>
<row>
<entry>__s32</entry>
<entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the rectangle, in pixels.</entry>
</row>
<row>
<entry>__s32</entry>
<entry>__u32</entry>
<entry><structfield>height</structfield></entry>
<entry>Height of the rectangle, in pixels. Width
and height cannot be negative, the fields are signed for
hysterical reasons. <!-- video4linux-[email protected]
on 22 Oct 2002 subject "Re:[V4L][patches!] Re:v4l2/kernel-2.5" -->
</entry>
<entry>Height of the rectangle, in pixels.</entry>
</row>
</tbody>
</tgroup>