linux/include/media
Krzysztof Kozlowski 00085f1efa dma-mapping: use unsigned long for dma_attrs
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer.  Thus the pointer can point to const data.
However the attributes do not have to be a bitfield.  Instead unsigned
long will do fine:

1. This is just simpler.  Both in terms of reading the code and setting
   attributes.  Instead of initializing local attributes on the stack
   and passing pointer to it to dma_set_attr(), just set the bits.

2. It brings safeness and checking for const correctness because the
   attributes are passed by value.

Semantic patches for this change (at least most of them):

    virtual patch
    virtual context

    @r@
    identifier f, attrs;

    @@
    f(...,
    - struct dma_attrs *attrs
    + unsigned long attrs
    , ...)
    {
    ...
    }

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

and

    // Options: --all-includes
    virtual patch
    virtual context

    @r@
    identifier f, attrs;
    type t;

    @@
    t f(..., struct dma_attrs *attrs);

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-04 08:50:07 -04:00
..
blackfin [media] v4l2: blackfin: select proper pinctrl state in ppi_set_params if CONFIG_PINCTRL is enabled 2014-07-26 17:15:16 -03:00
davinci [media] media/platform: convert drivers to use the new vb2_queue dev field 2016-07-08 14:39:21 -03:00
drv-intf [media] media, sound: tea575x: constify snd_tea575x_ops structures 2015-12-03 11:26:45 -02:00
i2c [media] adv7604/adv7842: drop unused op_656_range and alt_data_sat fields 2016-07-12 13:36:40 -03:00
cec-edid.h [media] cec-edid: add module for EDID CEC helper functions 2016-06-28 09:45:51 -03:00
cec.h [media] cec: limit the size of the transmit queue 2016-07-19 13:25:32 -03:00
i2c-addr.h V4L/DVB (9940): bt832: remove this driver 2008-12-30 09:39:25 -02:00
lirc.h [media] bz#75751: Move internal header file lirc.h to uapi/ 2015-11-17 06:47:43 -02:00
lirc_dev.h [media] doc-rst: Fix issues with RC documentation 2016-07-17 14:02:43 -03:00
media-device.h [media] doc-rst: Fix conversion for MC core functions 2016-07-17 14:02:44 -03:00
media-devnode.h [media] media-devnode.h: Fix documentation 2016-06-16 08:14:56 -03:00
media-entity.h [media] doc-rst: add some needed escape codes 2016-07-23 08:05:02 -03:00
rc-core.h Merge branch 'patchwork' into topic/docs-next 2016-07-23 07:59:19 -03:00
rc-map.h Merge branch 'patchwork' into topic/docs-next 2016-07-23 07:59:19 -03:00
rcar-fcp.h [media] v4l: Add Renesas R-Car FCP driver 2016-06-17 07:57:35 -03:00
soc_camera.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
tuner-types.h [media] doc-rst: Fix conversion for v4l2 core functions 2016-07-17 14:02:43 -03:00
tuner.h [media] v4l2-mc.h: move tuner PAD definitions to this new header 2016-02-01 07:19:44 -02:00
tveeprom.h [media] doc-rst: Fix conversion for v4l2 core functions 2016-07-17 14:02:43 -03:00
v4l2-async.h [media] v4l2-async: document the remaining stuff 2016-07-23 08:04:21 -03:00
v4l2-clk.h [media] v4l2-clk: add new definition: V4L2_CLK_NAME_SIZE 2015-11-17 15:19:11 -02:00
v4l2-common.h [media] v4l2-common.h: Add documentation for other functions 2016-07-23 08:04:21 -03:00
v4l2-ctrls.h [media] v4l2-ctrls.h: fully document the header file 2016-07-23 08:04:21 -03:00
v4l2-dev.h [media] doc-rst: add some needed escape codes 2016-07-23 08:05:02 -03:00
v4l2-device.h [media] v4l2-device.h: document functions 2016-07-23 08:03:24 -03:00
v4l2-dv-timings.h [media] doc-rst: Fix some typedef ugly warnings 2016-07-23 08:04:21 -03:00
v4l2-event.h [media] v4l2-event.h: document all functions 2016-07-23 08:04:21 -03:00
v4l2-fh.h [media] v4l2-fh.h: add documentation for it 2016-07-23 08:04:21 -03:00
v4l2-flash-led-class.h [media] Docbook: fix comments at v4l2-flash-led-class.h 2015-08-22 05:28:44 -03:00
v4l2-image-sizes.h [media] media: v4l2-image-sizes.h: correct the SVGA height definition 2014-12-04 13:56:56 -02:00
v4l2-ioctl.h [media] v4l2-ioctl.h add debug info for struct v4l2_ioctl_ops 2016-07-23 08:04:21 -03:00
v4l2-mc.h [media] doc-rst: Fix conversion for v4l2 core functions 2016-07-17 14:02:43 -03:00
v4l2-mediabus.h [media] v4l2-mediabus: Add to DocBook 2015-08-22 09:05:55 -03:00
v4l2-mem2mem.h [media] media: videobuf2: Restructure vb2_buffer 2015-10-01 09:04:43 -03:00
v4l2-of.h [media] v4l2-of: fix compiler errors if CONFIG_OF is undefined 2015-04-28 08:33:45 -03:00
v4l2-rect.h [media] v4l2-rect.h: new header with struct v4l2_rect helper functions 2016-04-20 16:11:33 -03:00
v4l2-subdev.h [media] v4l2-subdev.h: Improve documentation 2016-07-23 08:04:21 -03:00
v4l2-tpg-colors.h [media] tpg: Export the tpg code from vivid as a module 2016-04-20 16:14:39 -03:00
v4l2-tpg.h [media] tpg: Export the tpg code from vivid as a module 2016-04-20 16:14:39 -03:00
videobuf-core.h treewide: fix typos in comment blocks 2015-08-07 14:46:24 +02:00
videobuf-dma-contig.h [media] videobuf-dma-contig: remove support for cached mem 2013-04-25 09:50:19 -03:00
videobuf-dma-sg.h [media] videobuf: make unused exported functions static 2015-01-27 10:01:33 -02:00
videobuf-dvb.h [media] media: remove emacs editor variables 2014-12-22 17:52:20 -02:00
videobuf-vmalloc.h V4L/DVB: videobuf: add ext_lock argument to the queue init functions 2010-10-21 01:06:14 -02:00
videobuf2-core.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
videobuf2-dma-contig.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
videobuf2-dma-sg.h [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
videobuf2-dvb.h [media] add media controller support to videobuf2-dvb 2016-02-10 07:23:41 -02:00
videobuf2-memops.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
videobuf2-v4l2.h [media] media: videobuf2: Move vb2_fileio_data and vb2_thread to core part 2015-12-18 13:58:09 -02:00
videobuf2-vmalloc.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
vsp1.h [media] v4l: vsp1: Remove deprecated DRM API 2016-06-20 20:09:10 -03:00