[PATCH] drm: remove redundant 'default n' from Kconfig

Bartlomiej Zolnierkiewicz b.zolnierkie at samsung.com
Fri Apr 12 09:56:06 UTC 2019


'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:
    
        config FOO
                bool
    
        config FOO
                bool
                default n
    
    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
---
 drivers/gpu/drm/Kconfig             |    5 -----
 drivers/gpu/drm/amd/amdgpu/Kconfig  |    1 -
 drivers/gpu/drm/arm/Kconfig         |    1 -
 drivers/gpu/drm/exynos/Kconfig      |    2 --
 drivers/gpu/drm/i915/Kconfig        |    3 ---
 drivers/gpu/drm/i915/Kconfig.debug  |   13 -------------
 drivers/gpu/drm/msm/Kconfig         |    2 --
 drivers/gpu/drm/nouveau/Kconfig     |    2 --
 drivers/gpu/drm/omapdrm/Kconfig     |    1 -
 drivers/gpu/drm/omapdrm/dss/Kconfig |    6 ------
 10 files changed, 36 deletions(-)

Index: b/drivers/gpu/drm/Kconfig
===================================================================
--- a/drivers/gpu/drm/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -37,7 +37,6 @@ config DRM_DP_AUX_CHARDEV
 
 config DRM_DEBUG_MM
 	bool "Insert extra checks and debug info into the DRM range managers"
-	default n
 	depends on DRM=y
 	depends on STACKTRACE_SUPPORT
 	select STACKDEPOT
@@ -56,7 +55,6 @@ config DRM_DEBUG_SELFTEST
 	select PRIME_NUMBERS
 	select DRM_LIB_RANDOM
 	select DRM_KMS_HELPER
-	default n
 	help
 	  This option provides kernel modules that can be used to run
 	  various selftests on parts of the DRM api. This option is not
@@ -113,7 +111,6 @@ config DRM_FBDEV_OVERALLOC
 config DRM_FBDEV_LEAK_PHYS_SMEM
 	bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
 	depends on DRM_FBDEV_EMULATION && EXPERT
-	default n
 	help
 	  In order to keep user-space compatibility, we want in certain
 	  use-cases to keep leaking the fbdev physical address to the
@@ -247,7 +244,6 @@ config DRM_VKMS
 	tristate "Virtual KMS (EXPERIMENTAL)"
 	depends on DRM
 	select DRM_KMS_HELPER
-	default n
 	help
 	  Virtual Kernel Mode-Setting (VKMS) is used for testing or for
 	  running GPU in a headless machines. Choose this option to get
@@ -424,4 +420,3 @@ config DRM_PANEL_ORIENTATION_QUIRKS
 
 config DRM_LIB_RANDOM
 	bool
-	default n
Index: b/drivers/gpu/drm/amd/amdgpu/Kconfig
===================================================================
--- a/drivers/gpu/drm/amd/amdgpu/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/amd/amdgpu/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -35,7 +35,6 @@ config DRM_AMDGPU_GART_DEBUGFS
 	bool "Allow GART access through debugfs"
 	depends on DRM_AMDGPU
 	depends on DEBUG_FS
-	default n
 	help
 	  Selecting this option creates a debugfs file to inspect the mapped
 	  pages. Uses more memory for housekeeping, enable only for debugging.
Index: b/drivers/gpu/drm/arm/Kconfig
===================================================================
--- a/drivers/gpu/drm/arm/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/arm/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -16,7 +16,6 @@ config DRM_HDLCD
 config DRM_HDLCD_SHOW_UNDERRUN
 	bool "Show underrun conditions"
 	depends on DRM_HDLCD
-	default n
 	help
 	  Enable this option to show in red colour the pixels that the
 	  HDLCD device did not fetch from framebuffer due to underrun
Index: b/drivers/gpu/drm/exynos/Kconfig
===================================================================
--- a/drivers/gpu/drm/exynos/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/exynos/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -46,7 +46,6 @@ config DRM_EXYNOS_DPI
 	bool "Parallel output"
 	depends on DRM_EXYNOS_FIMD
 	select DRM_PANEL
-	default n
 	help
 	  This enables support for Exynos parallel output.
 
@@ -55,7 +54,6 @@ config DRM_EXYNOS_DSI
 	depends on DRM_EXYNOS_FIMD || DRM_EXYNOS5433_DECON || DRM_EXYNOS7_DECON
 	select DRM_MIPI_DSI
 	select DRM_PANEL
-	default n
 	help
 	  This enables support for Exynos MIPI-DSI device.
 
Index: b/drivers/gpu/drm/i915/Kconfig
===================================================================
--- a/drivers/gpu/drm/i915/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/i915/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -45,7 +45,6 @@ config DRM_I915
 config DRM_I915_ALPHA_SUPPORT
 	bool "Enable alpha quality support for new Intel hardware by default"
 	depends on DRM_I915
-	default n
 	help
 	  Choose this option if you have new Intel hardware and want to enable
 	  the alpha quality i915 driver support for the hardware in this kernel
@@ -99,7 +98,6 @@ config DRM_I915_GVT
         bool "Enable Intel GVT-g graphics virtualization host support"
         depends on DRM_I915
         depends on 64BIT
-        default n
         help
 	  Choose this option if you want to enable Intel GVT-g graphics
 	  virtualization technology host support with integrated graphics.
@@ -123,7 +121,6 @@ config DRM_I915_GVT_KVMGT
 	depends on DRM_I915_GVT
 	depends on KVM
 	depends on VFIO_MDEV && VFIO_MDEV_DEVICE
-	default n
 	help
 	  Choose this option if you want to enable KVMGT support for
 	  Intel GVT-g.
Index: b/drivers/gpu/drm/i915/Kconfig.debug
===================================================================
--- a/drivers/gpu/drm/i915/Kconfig.debug	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/i915/Kconfig.debug	2019-04-12 11:42:30.066095359 +0200
@@ -6,7 +6,6 @@ config DRM_I915_WERROR
         # We use the dependency on !COMPILE_TEST to not be enabled in
         # allmodconfig or allyesconfig configurations
         depends on !COMPILE_TEST
-        default n
         help
           Add -Werror to the build flags for (and only for) i915.ko.
           Do not enable this unless you are writing code for the i915.ko module.
@@ -31,7 +30,6 @@ config DRM_I915_DEBUG
 	select DRM_I915_SW_FENCE_DEBUG_OBJECTS
 	select DRM_I915_SELFTEST
 	select DRM_I915_DEBUG_RUNTIME_PM
-        default n
         help
           Choose this option to turn on extra driver debugging that may affect
           performance but will catch some internal issues.
@@ -42,7 +40,6 @@ config DRM_I915_DEBUG
 
 config DRM_I915_DEBUG_GEM
         bool "Insert extra checks into the GEM internals"
-        default n
         depends on DRM_I915_WERROR
         help
           Enable extra sanity checks (including BUGs) along the GEM driver
@@ -54,7 +51,6 @@ config DRM_I915_DEBUG_GEM
 
 config DRM_I915_ERRLOG_GEM
 	bool "Insert extra logging (very verbose) for common GEM errors"
-	default n
 	depends on DRM_I915_DEBUG_GEM
 	help
 	  Enable additional logging that may help track down the cause of
@@ -68,7 +64,6 @@ config DRM_I915_TRACE_GEM
 	bool "Insert extra ftrace output from the GEM internals"
 	depends on DRM_I915_DEBUG_GEM
 	select TRACING
-	default n
 	help
 	  Enable additional and verbose debugging output that will spam
 	  ordinary tests, but may be vital for post-mortem debugging when
@@ -82,7 +77,6 @@ config DRM_I915_SW_FENCE_DEBUG_OBJECTS
         bool "Enable additional driver debugging for fence objects"
         depends on DRM_I915
         select DEBUG_OBJECTS
-        default n
         help
           Choose this option to turn on extra driver debugging that may affect
           performance but will catch some internal issues.
@@ -94,7 +88,6 @@ config DRM_I915_SW_FENCE_DEBUG_OBJECTS
 config DRM_I915_SW_FENCE_CHECK_DAG
         bool "Enable additional driver debugging for detecting dependency cycles"
         depends on DRM_I915
-        default n
         help
           Choose this option to turn on extra driver debugging that may affect
           performance but will catch some internal issues.
@@ -106,7 +99,6 @@ config DRM_I915_SW_FENCE_CHECK_DAG
 config DRM_I915_DEBUG_GUC
         bool "Enable additional driver debugging for GuC"
         depends on DRM_I915
-        default n
         help
           Choose this option to turn on extra driver debugging that may affect
           performance but will help resolve GuC related issues.
@@ -118,7 +110,6 @@ config DRM_I915_DEBUG_GUC
 config DRM_I915_SELFTEST
 	bool "Enable selftests upon driver load"
 	depends on DRM_I915
-	default n
 	select FAULT_INJECTION
 	select PRIME_NUMBERS
 	help
@@ -135,7 +126,6 @@ config DRM_I915_SELFTEST_BROKEN
 	bool "Enable broken and dangerous selftests"
 	depends on DRM_I915_SELFTEST
 	depends on BROKEN
-	default n
 	help
 	  This option enables the execution of selftests that are "dangerous"
 	  and may trigger unintended HW side-effects as they break strict
@@ -148,7 +138,6 @@ config DRM_I915_SELFTEST_BROKEN
 config DRM_I915_LOW_LEVEL_TRACEPOINTS
         bool "Enable low level request tracing events"
         depends on DRM_I915
-        default n
         help
           Choose this option to turn on low level request tracing events.
           This provides the ability to precisely monitor engine utilisation
@@ -159,7 +148,6 @@ config DRM_I915_LOW_LEVEL_TRACEPOINTS
 config DRM_I915_DEBUG_VBLANK_EVADE
 	bool "Enable extra debug warnings for vblank evasion"
 	depends on DRM_I915
-	default n
 	help
 	  Choose this option to turn on extra debug warnings for the
 	  vblank evade mechanism. This gives a warning every time the
@@ -172,7 +160,6 @@ config DRM_I915_DEBUG_VBLANK_EVADE
 config DRM_I915_DEBUG_RUNTIME_PM
 	bool "Enable extra state checking for runtime PM"
 	depends on DRM_I915
-	default n
 	select STACKDEPOT
 	help
 	  Choose this option to turn on extra state checking for the
Index: b/drivers/gpu/drm/msm/Kconfig
===================================================================
--- a/drivers/gpu/drm/msm/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/msm/Kconfig	2019-04-12 11:42:30.066095359 +0200
@@ -24,7 +24,6 @@ config DRM_MSM
 config DRM_MSM_REGISTER_LOGGING
 	bool "MSM DRM register logging"
 	depends on DRM_MSM
-	default n
 	help
 	  Compile in support for logging register reads/writes in a format
 	  that can be parsed by envytools demsm tool.  If enabled, register
@@ -33,7 +32,6 @@ config DRM_MSM_REGISTER_LOGGING
 config DRM_MSM_GPU_SUDO
 	bool "Enable SUDO flag on submits"
 	depends on DRM_MSM && EXPERT
-	default n
 	help
 	  Enable userspace that has CAP_SYS_RAWIO to submit GPU commands
 	  that are run from RB instead of IB1.  This essentially gives
Index: b/drivers/gpu/drm/nouveau/Kconfig
===================================================================
--- a/drivers/gpu/drm/nouveau/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/nouveau/Kconfig	2019-04-12 11:43:25.998096767 +0200
@@ -60,7 +60,6 @@ config NOUVEAU_DEBUG_DEFAULT
 config NOUVEAU_DEBUG_MMU
 	bool "Enable additional MMU debugging"
 	depends on DRM_NOUVEAU
-	default n
 	help
 	  Say Y here if you want to enable verbose MMU debug output.
 
@@ -79,7 +78,6 @@ config DRM_NOUVEAU_SVM
 	depends on STAGING
 	select HMM_MIRROR
 	select DEVICE_PRIVATE
-	default n
 	help
 	  Say Y here if you want to enable experimental support for
 	  Shared Virtual Memory (SVM).
Index: b/drivers/gpu/drm/omapdrm/Kconfig
===================================================================
--- a/drivers/gpu/drm/omapdrm/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/omapdrm/Kconfig	2019-04-12 11:42:30.070095359 +0200
@@ -4,7 +4,6 @@ config DRM_OMAP
 	depends on ARCH_OMAP2PLUS || ARCH_MULTIPLATFORM
 	select OMAP2_DSS
 	select DRM_KMS_HELPER
-	default n
 	help
 	  DRM display driver for OMAP2/3/4 based boards.
 
Index: b/drivers/gpu/drm/omapdrm/dss/Kconfig
===================================================================
--- a/drivers/gpu/drm/omapdrm/dss/Kconfig	2019-04-12 11:42:30.070095359 +0200
+++ b/drivers/gpu/drm/omapdrm/dss/Kconfig	2019-04-12 11:42:30.070095359 +0200
@@ -17,7 +17,6 @@ if OMAP2_DSS
 
 config OMAP2_DSS_DEBUG
 	bool "Debug support"
-	default n
 	help
 	  This enables printing of debug messages. Alternatively, debug messages
 	  can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
@@ -26,7 +25,6 @@ config OMAP2_DSS_DEBUG
 config OMAP2_DSS_DEBUGFS
 	bool "Debugfs filesystem support"
 	depends on DEBUG_FS
-	default n
 	help
 	  This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
 	  querying about clock configuration and register configuration of dss,
@@ -35,7 +33,6 @@ config OMAP2_DSS_DEBUGFS
 config OMAP2_DSS_COLLECT_IRQ_STATS
 	bool "Collect DSS IRQ statistics"
 	depends on OMAP2_DSS_DEBUGFS
-	default n
 	help
 	  Collect DSS IRQ statistics, printable via debugfs.
 
@@ -75,7 +72,6 @@ config OMAP4_DSS_HDMI_CEC
 
 config OMAP5_DSS_HDMI
 	bool "HDMI support for OMAP5"
-	default n
 	select OMAP2_DSS_HDMI_COMMON
 	help
 	  HDMI Interface for OMAP5 and similar cores. This adds the High
@@ -84,7 +80,6 @@ config OMAP5_DSS_HDMI
 
 config OMAP2_DSS_SDI
 	bool "SDI support"
-        default n
 	help
 	  SDI (Serial Display Interface) support.
 
@@ -93,7 +88,6 @@ config OMAP2_DSS_SDI
 
 config OMAP2_DSS_DSI
 	bool "DSI support"
-        default n
 	help
 	  MIPI DSI (Display Serial Interface) support.
 


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