[PATCH RFC v1 00/52] drm/crtc: Rename struct drm_crtc::dev to drm_dev
Paul Kocialkowski
paul.kocialkowski at bootlin.com
Wed Jul 12 10:13:38 UTC 2023
Hi Uwe,
On Wed 12 Jul 23, 11:46, Uwe Kleine-König wrote:
> Hello,
>
> while I debugged an issue in the imx-lcdc driver I was constantly
> irritated about struct drm_device pointer variables being named "dev"
> because with that name I usually expect a struct device pointer.
Well personally I usually expect that the "dev" member of a subsystem-specific
struct refers to a device of that subsystem, so for me having "dev" refer to
a drm_device for e.g. drm_crtc makes good sense.
I would only expect dev to refer to a struct device in the subsystem-specific
device structure (drm_device). I don't think it makes much sense to carry
the struct device in any other subsystem-specific structure anyway.
So IMO things are fine as-is but this is not a very strong opinion either.
> I think there is a big benefit when these are all renamed to "drm_dev".
> I have no strong preference here though, so "drmdev" or "drm" are fine
> for me, too. Let the bikesheding begin!
I would definitely prefer "drm_dev" over "drmdev" (hard to read, feels like
aborted camelcase, pretty ugly) or "drm" (too vague).
Cheers,
Paul
> Some statistics:
>
> $ git grep -ohE 'struct drm_device *\* *[^ (),;]*' v6.5-rc1 | sort | uniq -c | sort -n
> 1 struct drm_device *adev_to_drm
> 1 struct drm_device *drm_
> 1 struct drm_device *drm_dev
> 1 struct drm_device *drm_dev
> 1 struct drm_device *pdev
> 1 struct drm_device *rdev
> 1 struct drm_device *vdev
> 2 struct drm_device *dcss_drv_dev_to_drm
> 2 struct drm_device **ddev
> 2 struct drm_device *drm_dev_alloc
> 2 struct drm_device *mock
> 2 struct drm_device *p_ddev
> 5 struct drm_device *device
> 9 struct drm_device * dev
> 25 struct drm_device *d
> 95 struct drm_device *
> 216 struct drm_device *ddev
> 234 struct drm_device *drm_dev
> 611 struct drm_device *drm
> 4190 struct drm_device *dev
>
> This series starts with renaming struct drm_crtc::dev to drm_dev. If
> it's not only me and others like the result of this effort it should be
> followed up by adapting the other structs and the individual usages in
> the different drivers.
>
> To make this series a bit easier handleable, I first added an alias for
> drm_crtc::dev, then converted the drivers one after another and the last
> patch drops the "dev" name. This has the advantage of being easier to
> review, and if I should have missed an instance only the last patch must
> be dropped/reverted. Also this series might conflict with other patches,
> in this case the remaining patches can still go in (apart from the last
> one of course). Maybe it also makes sense to delay applying the last
> patch by one development cycle?
>
> The series was compile tested for arm, arm64, powerpc and amd64 using an
> allmodconfig (though I only build drivers/gpu/).
>
> Best regards
> Uwe
>
> Uwe Kleine-König (52):
> drm/crtc: Start renaming struct drm_crtc::dev to drm_dev
> drm/core: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/amd: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/armada: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/arm: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/aspeed: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/ast: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/atmel-hlcdc: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/exynos: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/fsl-dcu: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/gma500: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/gud: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/hisilicon: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/hyperv: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/i915: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/imx: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/ingenic: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/kmb: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/logicvc: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/mcde: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/mediatek: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/meson: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/mgag200: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/msm: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/mxsfb: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/nouveau: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/omapdrm: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/panel-ili9341: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/pl111: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/qxl: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/radeon: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/renesas: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/rockchip: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/solomon: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/sprd: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/sti: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/stm: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/sun4i: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/tegra: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/tidss: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/tilcdc: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/tiny: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/tve200: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/udl: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/vboxvideo: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/vc4: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/virtio: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/vkms: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/vmwgfx: Use struct drm_crtc::drm_dev instead of struct
> drm_crtc::dev
> drm/xen: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/xlnx: Use struct drm_crtc::drm_dev instead of struct drm_crtc::dev
> drm/crtc: Complete renaming struct drm_crtc::dev to drm_dev
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 18 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 6 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_pll.c | 6 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 8 +-
> drivers/gpu/drm/amd/amdgpu/atombios_crtc.c | 22 +--
> drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 26 +--
> drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 28 ++--
> drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 26 +--
> drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 26 +--
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 29 ++--
> .../drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 20 +--
> .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 8 +-
> .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 22 +--
> .../amd/display/amdgpu_dm/amdgpu_dm_plane.c | 2 +-
> .../gpu/drm/arm/display/komeda/komeda_crtc.c | 24 +--
> .../gpu/drm/arm/display/komeda/komeda_kms.c | 2 +-
> drivers/gpu/drm/arm/hdlcd_crtc.c | 4 +-
> drivers/gpu/drm/arm/malidp_crtc.c | 7 +-
> drivers/gpu/drm/armada/armada_crtc.c | 10 +-
> drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 6 +-
> drivers/gpu/drm/ast/ast_dp.c | 2 +-
> drivers/gpu/drm/ast/ast_mode.c | 26 +--
> .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 10 +-
> drivers/gpu/drm/drm_atomic.c | 22 +--
> drivers/gpu/drm/drm_atomic_helper.c | 20 ++-
> drivers/gpu/drm/drm_atomic_state_helper.c | 2 +-
> drivers/gpu/drm/drm_atomic_uapi.c | 22 +--
> drivers/gpu/drm/drm_blend.c | 2 +-
> drivers/gpu/drm/drm_color_mgmt.c | 10 +-
> drivers/gpu/drm/drm_crtc.c | 19 ++-
> drivers/gpu/drm/drm_crtc_helper.c | 10 +-
> drivers/gpu/drm/drm_debugfs.c | 2 +-
> drivers/gpu/drm/drm_debugfs_crc.c | 2 +-
> drivers/gpu/drm/drm_fb_helper.c | 6 +-
> drivers/gpu/drm/drm_mipi_dbi.c | 4 +-
> drivers/gpu/drm/drm_plane.c | 2 +-
> drivers/gpu/drm/drm_plane_helper.c | 2 +-
> drivers/gpu/drm/drm_self_refresh_helper.c | 2 +-
> drivers/gpu/drm/drm_vblank.c | 40 ++---
> drivers/gpu/drm/drm_vblank_work.c | 2 +-
> drivers/gpu/drm/exynos/exynos_drm_crtc.c | 8 +-
> drivers/gpu/drm/exynos/exynos_drm_plane.c | 4 +-
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 16 +-
> drivers/gpu/drm/gma500/cdv_intel_display.c | 2 +-
> drivers/gpu/drm/gma500/cdv_intel_dp.c | 2 +-
> drivers/gpu/drm/gma500/gma_display.c | 20 +--
> drivers/gpu/drm/gma500/oaktrail_crtc.c | 8 +-
> drivers/gpu/drm/gma500/oaktrail_hdmi.c | 4 +-
> drivers/gpu/drm/gma500/psb_intel_display.c | 2 +-
> drivers/gpu/drm/gma500/psb_irq.c | 6 +-
> drivers/gpu/drm/gud/gud_pipe.c | 6 +-
> .../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 20 +--
> .../gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 4 +-
> drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 6 +-
> drivers/gpu/drm/i915/display/g4x_dp.c | 4 +-
> drivers/gpu/drm/i915/display/hsw_ips.c | 16 +-
> drivers/gpu/drm/i915/display/i9xx_plane.c | 4 +-
> drivers/gpu/drm/i915/display/i9xx_wm.c | 40 ++---
> drivers/gpu/drm/i915/display/icl_dsi.c | 2 +-
> drivers/gpu/drm/i915/display/intel_atomic.c | 2 +-
> .../gpu/drm/i915/display/intel_atomic_plane.c | 4 +-
> drivers/gpu/drm/i915/display/intel_audio.c | 2 +-
> drivers/gpu/drm/i915/display/intel_bw.c | 10 +-
> drivers/gpu/drm/i915/display/intel_cdclk.c | 6 +-
> drivers/gpu/drm/i915/display/intel_color.c | 124 +++++++-------
> drivers/gpu/drm/i915/display/intel_crtc.c | 20 +--
> .../drm/i915/display/intel_crtc_state_dump.c | 4 +-
> drivers/gpu/drm/i915/display/intel_cursor.c | 2 +-
> drivers/gpu/drm/i915/display/intel_ddi.c | 28 ++--
> drivers/gpu/drm/i915/display/intel_display.c | 154 +++++++++---------
> .../gpu/drm/i915/display/intel_display_irq.c | 22 +--
> .../gpu/drm/i915/display/intel_display_rps.c | 2 +-
> .../drm/i915/display/intel_display_trace.h | 12 +-
> drivers/gpu/drm/i915/display/intel_dp.c | 2 +-
> drivers/gpu/drm/i915/display/intel_dpll.c | 38 ++---
> drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 44 ++---
> drivers/gpu/drm/i915/display/intel_dpt.c | 2 +-
> drivers/gpu/drm/i915/display/intel_drrs.c | 10 +-
> drivers/gpu/drm/i915/display/intel_dsb.c | 8 +-
> drivers/gpu/drm/i915/display/intel_fbc.c | 2 +-
> drivers/gpu/drm/i915/display/intel_fdi.c | 22 +--
> .../drm/i915/display/intel_fifo_underrun.c | 6 +-
> drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +-
> .../drm/i915/display/intel_modeset_setup.c | 22 +--
> .../drm/i915/display/intel_modeset_verify.c | 2 +-
> drivers/gpu/drm/i915/display/intel_panel.c | 4 +-
> .../gpu/drm/i915/display/intel_pch_display.c | 32 ++--
> .../gpu/drm/i915/display/intel_pch_refclk.c | 2 +-
> drivers/gpu/drm/i915/display/intel_pipe_crc.c | 10 +-
> .../drm/i915/display/intel_plane_initial.c | 6 +-
> drivers/gpu/drm/i915/display/intel_psr.c | 14 +-
> drivers/gpu/drm/i915/display/intel_sdvo.c | 2 +-
> drivers/gpu/drm/i915/display/intel_vblank.c | 24 +--
> drivers/gpu/drm/i915/display/intel_vdsc.c | 18 +-
> drivers/gpu/drm/i915/display/intel_vrr.c | 18 +-
> drivers/gpu/drm/i915/display/skl_scaler.c | 10 +-
> .../drm/i915/display/skl_universal_plane.c | 6 +-
> drivers/gpu/drm/i915/display/skl_watermark.c | 42 ++---
> drivers/gpu/drm/i915/display/vlv_dsi.c | 2 +-
> drivers/gpu/drm/imx/dcss/dcss-crtc.c | 20 +--
> drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c | 15 +-
> drivers/gpu/drm/imx/lcdc/imx-lcdc.c | 16 +-
> drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 4 +-
> drivers/gpu/drm/kmb/kmb_crtc.c | 16 +-
> drivers/gpu/drm/logicvc/logicvc_crtc.c | 14 +-
> drivers/gpu/drm/mcde/mcde_display.c | 18 +-
> drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 22 +--
> drivers/gpu/drm/meson/meson_crtc.c | 12 +-
> drivers/gpu/drm/mgag200/mgag200_g200.c | 4 +-
> drivers/gpu/drm/mgag200/mgag200_g200eh.c | 2 +-
> drivers/gpu/drm/mgag200/mgag200_g200er.c | 4 +-
> drivers/gpu/drm/mgag200/mgag200_g200ev.c | 4 +-
> drivers/gpu/drm/mgag200/mgag200_g200se.c | 6 +-
> drivers/gpu/drm/mgag200/mgag200_g200wb.c | 2 +-
> drivers/gpu/drm/mgag200/mgag200_mode.c | 10 +-
> drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 6 +-
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 70 ++++----
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +-
> drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c | 12 +-
> drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 20 +--
> drivers/gpu/drm/msm/msm_drv.c | 4 +-
> drivers/gpu/drm/mxsfb/lcdif_kms.c | 18 +-
> drivers/gpu/drm/mxsfb/mxsfb_kms.c | 16 +-
> drivers/gpu/drm/nouveau/dispnv04/crtc.c | 58 +++----
> drivers/gpu/drm/nouveau/dispnv04/cursor.c | 10 +-
> drivers/gpu/drm/nouveau/dispnv50/atom.h | 2 +-
> drivers/gpu/drm/nouveau/dispnv50/crc.c | 30 ++--
> drivers/gpu/drm/nouveau/dispnv50/crc907d.c | 6 +-
> drivers/gpu/drm/nouveau/dispnv50/crcc37d.c | 6 +-
> drivers/gpu/drm/nouveau/dispnv50/crcc57d.c | 2 +-
> drivers/gpu/drm/nouveau/dispnv50/disp.c | 5 +-
> drivers/gpu/drm/nouveau/dispnv50/head.c | 4 +-
> drivers/gpu/drm/nouveau/dispnv50/head507d.c | 26 +--
> drivers/gpu/drm/nouveau/dispnv50/head827d.c | 10 +-
> drivers/gpu/drm/nouveau/dispnv50/head907d.c | 26 +--
> drivers/gpu/drm/nouveau/dispnv50/head917d.c | 6 +-
> drivers/gpu/drm/nouveau/dispnv50/headc37d.c | 18 +-
> drivers/gpu/drm/nouveau/dispnv50/headc57d.c | 10 +-
> drivers/gpu/drm/nouveau/nouveau_connector.h | 2 +-
> drivers/gpu/drm/nouveau/nouveau_display.c | 2 +-
> drivers/gpu/drm/omapdrm/omap_crtc.c | 56 +++----
> drivers/gpu/drm/omapdrm/omap_irq.c | 6 +-
> drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 4 +-
> drivers/gpu/drm/pl111/pl111_display.c | 16 +-
> drivers/gpu/drm/qxl/qxl_display.c | 2 +-
> drivers/gpu/drm/radeon/atombios_crtc.c | 54 +++---
> drivers/gpu/drm/radeon/radeon_cursor.c | 14 +-
> drivers/gpu/drm/radeon/radeon_display.c | 28 ++--
> drivers/gpu/drm/radeon/radeon_kms.c | 6 +-
> drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 16 +-
> .../gpu/drm/renesas/rcar-du/rcar_du_crtc.c | 14 +-
> .../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 20 +--
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 8 +-
> drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 15 +-
> drivers/gpu/drm/solomon/ssd130x.c | 2 +-
> drivers/gpu/drm/sprd/sprd_dpu.c | 6 +-
> drivers/gpu/drm/sti/sti_crtc.c | 14 +-
> drivers/gpu/drm/stm/ltdc.c | 12 +-
> drivers/gpu/drm/sun4i/sun4i_crtc.c | 12 +-
> drivers/gpu/drm/tegra/dc.c | 12 +-
> drivers/gpu/drm/tidss/tidss_crtc.c | 19 ++-
> drivers/gpu/drm/tidss/tidss_irq.c | 4 +-
> drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 43 ++---
> drivers/gpu/drm/tiny/bochs.c | 6 +-
> drivers/gpu/drm/tiny/cirrus.c | 2 +-
> drivers/gpu/drm/tiny/gm12u320.c | 4 +-
> drivers/gpu/drm/tiny/hx8357d.c | 4 +-
> drivers/gpu/drm/tiny/ili9163.c | 4 +-
> drivers/gpu/drm/tiny/ili9225.c | 8 +-
> drivers/gpu/drm/tiny/ili9341.c | 4 +-
> drivers/gpu/drm/tiny/ili9486.c | 4 +-
> drivers/gpu/drm/tiny/mi0283qt.c | 4 +-
> drivers/gpu/drm/tiny/ofdrm.c | 8 +-
> drivers/gpu/drm/tiny/panel-mipi-dbi.c | 6 +-
> drivers/gpu/drm/tiny/repaper.c | 8 +-
> drivers/gpu/drm/tiny/simpledrm.c | 2 +-
> drivers/gpu/drm/tiny/st7586.c | 6 +-
> drivers/gpu/drm/tiny/st7735r.c | 4 +-
> drivers/gpu/drm/tve200/tve200_display.c | 14 +-
> drivers/gpu/drm/udl/udl_modeset.c | 4 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 6 +-
> drivers/gpu/drm/vc4/vc4_crtc.c | 38 ++---
> drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
> drivers/gpu/drm/vc4/vc4_hvs.c | 12 +-
> drivers/gpu/drm/vc4/vc4_txp.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_display.c | 4 +-
> drivers/gpu/drm/vkms/vkms_crtc.c | 12 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 4 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 10 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 8 +-
> drivers/gpu/drm/xen/xen_drm_front_kms.c | 10 +-
> drivers/gpu/drm/xlnx/zynqmp_kms.c | 8 +-
> include/drm/drm_atomic_helper.h | 2 +-
> include/drm/drm_crtc.h | 4 +-
> 194 files changed, 1296 insertions(+), 1264 deletions(-)
>
> base-commit: 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5
> --
> 2.39.2
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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