linux/drivers/media/pci
Jason Gunthorpe d901b2760d lib/scatterlist: Provide a DMA page iterator
Commit 2db76d7c3c ("lib/scatterlist: sg_page_iter: support sg lists w/o
backing pages") introduced the sg_page_iter_dma_address() function without
providing a way to use it in the general case. If the sg_dma_len() is not
equal to the sg length callers cannot safely use the
for_each_sg_page/sg_page_iter_dma_address combination.

Resolve this API mistake by providing a DMA specific iterator,
for_each_sg_dma_page(), that uses the right length so
sg_page_iter_dma_address() works as expected with all sglists.

A new iterator type is introduced to provide compile-time safety against
wrongly mixing accessors and iterators.

Acked-by: Christoph Hellwig <hch@lst.de> (for scatterlist)
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> (ipu3-cio2)
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-11 15:02:33 -07:00
..
b2c2 media: drivers: media: pci: b2c2: Fix errors due to unappropriate coding style. 2018-12-05 04:23:19 -05:00
bt8xx media: vidioc_cropcap -> vidioc_g_pixelaspect 2018-11-20 13:57:21 -05:00
cobalt media: vidioc_cropcap -> vidioc_g_pixelaspect 2018-11-20 13:57:21 -05:00
cx18 media: vidioc_cropcap -> vidioc_g_pixelaspect 2018-11-20 13:57:21 -05:00
cx88 media updates for v4.20-rc1 2018-10-31 10:53:29 -07:00
cx23885 media: cx23885: only reset DMA on problematic CPUs 2018-12-20 06:52:01 -05:00
cx25821 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
ddbridge media: ddbridge: Move asm includes after linux ones 2018-12-20 06:42:14 -05:00
dm1105 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
dt3155 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
intel lib/scatterlist: Provide a DMA page iterator 2019-02-11 15:02:33 -07:00
ivtv Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
mantis media: remove redundant include moduleparam.h 2018-12-05 04:33:45 -05:00
meye media: fix: media: pci: meye: validate offset to avoid arbitrary access 2018-09-12 10:47:50 -04:00
netup_unidvb media: netup_unidvb: don't check number of messages in the driver 2018-07-27 06:39:57 -04:00
ngene media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
pluto2 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
pt1 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
pt3 media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
saa7134 media: saa7134: rc-core maintains users count, no need to duplicate 2018-12-03 13:22:46 -05:00
saa7146 media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
saa7164 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
smipcie media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
solo6x10 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
sta2x11 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
ttpci media: dvb: move compat handlers into drivers 2018-09-12 11:00:51 -04:00
tw68 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
tw686x media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
tw5864 media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
Kconfig media: zoran: move to staging in preparation for removal 2018-05-25 15:21:36 -04:00
Makefile media: zoran: move to staging in preparation for removal 2018-05-25 15:21:36 -04:00