Em Mon, 18 Mar 2013 15:12:04 +0100
Hans Verkuil <hverk...@xs4all.nl> escreveu:
> From: Hans Verkuil <hans.verk...@cisco.com>
>
> The core debug code can now be simplified since all the write-only ioctls are
> now const and will not modify the data they pass to the drivers.
>
> So instead of logging write-only ioctls before the driver is called this can
> now be done afterwards, which is cleaner when it comes to error reporting as
> well.
>
> This also fixes a logic error in the debugging code where there was one 'else'
> too many.
>
> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
Patch looks ok, but I won't apply right now, as it seems it depends on 4/6.
Regards,
Mauro
> ---
> drivers/media/v4l2-core/v4l2-ioctl.c | 15 ++-------------
> 1 file changed, 2 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
> b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 2abd13a..b3fe148 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -2147,11 +2147,6 @@ static long __video_do_ioctl(struct file *file,
> }
>
> write_only = _IOC_DIR(cmd) == _IOC_WRITE;
> - if (write_only && debug > V4L2_DEBUG_IOCTL) {
> - v4l_printk_ioctl(video_device_node_name(vfd), cmd);
> - pr_cont(": ");
> - info->debug(arg, write_only);
> - }
> if (info->flags & INFO_FL_STD) {
> typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
> const void *p = vfd->ioctl_ops;
> @@ -2170,16 +2165,10 @@ static long __video_do_ioctl(struct file *file,
>
> done:
> if (debug) {
> - if (write_only && debug > V4L2_DEBUG_IOCTL) {
> - if (ret < 0)
> - printk(KERN_DEBUG "%s: error %ld\n",
> - video_device_node_name(vfd), ret);
> - return ret;
> - }
> v4l_printk_ioctl(video_device_node_name(vfd), cmd);
> if (ret < 0)
> - pr_cont(": error %ld\n", ret);
> - else if (debug == V4L2_DEBUG_IOCTL)
> + pr_cont(": error %ld", ret);
> + if (debug == V4L2_DEBUG_IOCTL)
> pr_cont("\n");
> else if (_IOC_DIR(cmd) == _IOC_NONE)
> info->debug(arg, write_only);
--
Cheers,
Mauro
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