On 01/30/18 12:46, Sakari Ailus wrote:
> Hi Hans,
>
> Thanks for the update. Please see a few additional comments below.
>
> On Tue, Jan 30, 2018 at 11:27:01AM +0100, Hans Verkuil wrote:
> ...
>> @@ -891,30 +1057,53 @@ static long do_video_ioctl(struct file *file,
>> unsigned int cmd, unsigned l
Hi Hans,
Thanks for the update. Please see a few additional comments below.
On Tue, Jan 30, 2018 at 11:27:01AM +0100, Hans Verkuil wrote:
...
> @@ -891,30 +1057,53 @@ static long do_video_ioctl(struct file *file, unsigned
> int cmd, unsigned long ar
> case VIDIOC_STREAMOFF:
> case VI
From: Daniel Mentz
The 32-bit compat v4l2 ioctl handling is implemented based on its 64-bit
equivalent. It converts 32-bit data structures into its 64-bit
equivalents and needs to provide the data to the 64-bit ioctl in user
space memory which is commonly allocated using
compat_alloc_user_space()
