Hi,
since I got no reaction[1] on the vp702x driver, I proceed with the
dib0700.
There are multiple drivers in drivers/media/dvb/dvb-usb/ which use
usb_control_msg to perform dma to stack-allocated buffers. This is a bad idea
because of cache-coherency issues and on some platforms the stack is mapped
virtually and also lib/dma-debug.c warn's about it at runtime.
Patches to ec168, ce6230, au6610 and lmedm04 were already tested and reviewed
and submitted for inclusion [2]. Patches to a800, vp7045, friio, dw2102, m920x
and opera1 are still waiting for for review and testing [3].
This patch to dib0700 is a fix for a warning seen and reported by Zdenek
Kabalec in Bug #15977 [4].
Florian Mickler (2):
[media] dib0700: get rid of on-stack dma buffers
[media] dib0700: remove unused variable
Regards,
Flo
References:
[1]: http://www.spinics.net/lists/linux-media/msg30448.html
[2]: http://comments.gmane.org/gmane.linux.kernel/1115404
[3]: http://groups.google.com/group/fa.linux.kernel/browse_frm/thread/e169edc121b91181/f1498cd026a59fe2
[4]: https://bugzilla.kernel.org/show_bug.cgi?id=15977
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
