linux/drivers/remoteproc
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
..
da8xx_remoteproc.c remoteproc/davinci: fix quoted split string checkpatch warning 2015-05-02 11:04:56 +03:00
Kconfig remoteproc: qcom: Driver for the self-authenticating Hexagon v5 2016-07-13 13:38:15 -07:00
Makefile remoteproc: qcom: Driver for the self-authenticating Hexagon v5 2016-07-13 13:38:15 -07:00
omap_remoteproc.c remoteproc: add IOMMU hardware capability flag 2015-03-12 10:43:26 +02:00
omap_remoteproc.h remoteproc/omap: add a remoteproc driver for OMAP4 2012-02-08 22:53:47 +02:00
qcom_mdt_loader.c remoteproc: qcom: Driver for the self-authenticating Hexagon v5 2016-07-13 13:38:15 -07:00
qcom_mdt_loader.h remoteproc: qcom: Driver for the self-authenticating Hexagon v5 2016-07-13 13:38:15 -07:00
qcom_q6v5_pil.c dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
remoteproc_core.c remoteproc: Fix potential race condition in rproc_add 2016-06-14 11:08:16 -07:00
remoteproc_debugfs.c remoteproc: debugfs: Add ability to boot remote processor using debugfs 2016-01-29 17:26:48 -08:00
remoteproc_elf_loader.c remoteproc: add find_loaded_rsc_table firmware ops 2013-04-05 08:49:52 +03:00
remoteproc_internal.h remoteproc: core: Task sync during rproc_fw_boot() 2016-05-06 11:46:36 -07:00
remoteproc_virtio.c remoteproc: core: Task sync during rproc_fw_boot() 2016-05-06 11:46:36 -07:00
st_remoteproc.c remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value 2016-03-28 16:19:00 -07:00
ste_modem_rproc.c remoteproc/ste: add blank lines after declarations 2015-05-02 11:03:07 +03:00
wkup_m3_rproc.c remoteproc/wkup_m3: Use MODULE_DEVICE_TABLE to export alias 2016-01-29 17:26:47 -08:00