linux_dsm_epyc7002/drivers/gpu/drm/mediatek
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
..
Kconfig MT8173 HDMI support 2016-06-24 13:16:07 +10:00
Makefile drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00
mtk_cec.c drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00
mtk_cec.h drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00
mtk_disp_ovl.c
mtk_disp_rdma.c
mtk_dpi_regs.h
mtk_dpi.c
mtk_drm_crtc.c
mtk_drm_crtc.h
mtk_drm_ddp_comp.c
mtk_drm_ddp_comp.h
mtk_drm_ddp.c
mtk_drm_ddp.h
mtk_drm_drv.c drm: Don't call drm_dev_set_unique from platform drivers 2016-06-21 21:43:41 +02:00
mtk_drm_drv.h
mtk_drm_fb.c
mtk_drm_fb.h
mtk_drm_gem.c dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
mtk_drm_gem.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
mtk_drm_plane.c drm: Deal with rotation in drm_plane_helper_check_update() 2016-06-17 16:41:25 +02:00
mtk_drm_plane.h
mtk_dsi.c
mtk_hdmi_ddc.c drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00
mtk_hdmi_regs.h drm/mediatek: enable hdmi output control bit 2016-06-16 16:30:38 +02:00
mtk_hdmi.c ASoC: Add private data for HDMI CODEC callbacks 2016-07-05 09:57:23 +10:00
mtk_hdmi.h drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00
mtk_mipi_tx.c drm/mediatek/mtk_mipi_tx: checking the wrong variable 2016-07-12 14:47:04 +02:00
mtk_mt8173_hdmi_phy.c drm/mediatek: Add HDMI support 2016-06-16 16:30:38 +02:00