Re: [PATCH 0/5] media: Access videobuf2 buffers via an accessor

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 2019-06-06 at 19:43 +0200, Boris Brezillon wrote:
> On Thu,  6 Jun 2019 12:44:21 -0300
> Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx> wrote:
> 
> > Hi,
> > 
> > This patchset introduces a new vb2_get_buffer accessor and then
> > uses it on all the drivers that are accessing videobuf2
> > private buffer array directly.
> 
> Just curious, how did you find all occurrences of direct q->bufs[]
> accesses? If you used a cocci script it might be worth submitting it so
> we don't end up with new offenders of the "don't access q->bufs[]
> directly" rule.
> 

No, I just inspected the code and tried a few grep variants.

Hopefully, I haven't missed any!

> > I'm skipping Intel IPU3 driver here, since the code goes beyond
> > just accessing the buffer. It also modifies the buffer queue
> > directly. I believe this driver would need some more cleanup
> > and love from its maintainers.
> > 
> > Note that OMAP2/OMAP3 display driver is videobuf1 and so not
> > affected by this change.
> > 
> > Lastly, note that I'm doing the minimum changes to drivers I can't test,
> > only using the new accessor and avoiding any further changes.
> 
> Can you also add a patch to remove the private buf pointers array in the
> cedrus driver?
> 

You mean removing the dst_bufs field?

I can but it's not part of this series, is it?

And I'd rather someone else test it, as my cedrus boards
are not wired at the moment.
 
> > `
> > Thanks,
> > Ezequiel
> > 
> > Ezequiel Garcia (5):
> >   media: vb2: Introduce a vb2_get_buffer accessor
> >   media: mtk-jpeg: Use vb2_get_buffer
> >   media: mtk-vcodec: Use vb2_get_buffer
> >   media: sti: Use vb2_get_buffer
> >   media: rockchip: Use vb2_get_buffer
> > 
> >  .../media/platform/mtk-jpeg/mtk_jpeg_core.c    |  2 +-
> >  .../media/platform/mtk-vcodec/mtk_vcodec_enc.c | 12 +++++++++---
> >  drivers/media/platform/sti/hva/hva-v4l2.c      |  4 +++-
> >  .../media/rockchip/vpu/rockchip_vpu_drv.c      |  9 ++++++---
> >  include/media/videobuf2-core.h                 | 18 ++++++++++++++++++
> >  5 files changed, 37 insertions(+), 8 deletions(-)
> > 





[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]

  Powered by Linux