linux_dsm_epyc7002/drivers/media/usb/siano
Mauro Carvalho Chehab f9c85ee671 [media] siano: make it work again with CONFIG_VMAP_STACK
Reported as a Kaffeine bug:
	https://bugs.kde.org/show_bug.cgi?id=375811

The USB control messages require DMA to work. We cannot pass
a stack-allocated buffer, as it is not warranted that the
stack would be into a DMA enabled area.

On Kernel 4.9, the default is to not accept DMA on stack anymore
on x86 architecture. On other architectures, this has been a
requirement since Kernel 2.2. So, after this patch, this driver
should likely work fine on all archs.

Tested with USB ID 2040:5510: Hauppauge Windham

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-14 18:13:49 -02:00
..
Kconfig [media] siano: fix Kconfig dependencies 2015-02-02 11:08:02 -02:00
Makefile
smsusb.c [media] siano: make it work again with CONFIG_VMAP_STACK 2017-02-14 18:13:49 -02:00