'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@xxxxxxxxxxx> --- drivers/media/Kconfig | 3 --- drivers/media/dvb-core/Kconfig | 3 --- drivers/media/dvb-frontends/Kconfig | 1 - drivers/media/pci/ddbridge/Kconfig | 1 - drivers/media/pci/dt3155/Kconfig | 1 - drivers/media/pci/ivtv/Kconfig | 2 -- drivers/media/platform/Kconfig | 12 ------------ drivers/media/platform/omap/Kconfig | 1 - drivers/media/platform/vicodec/Kconfig | 1 - drivers/media/platform/vimc/Kconfig | 1 - drivers/media/platform/vivid/Kconfig | 1 - drivers/media/radio/Kconfig | 1 - drivers/media/usb/s2255/Kconfig | 1 - drivers/media/v4l2-core/Kconfig | 2 -- 14 files changed, 31 deletions(-) Index: b/drivers/media/Kconfig =================================================================== --- a/drivers/media/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/Kconfig 2019-04-12 12:18:15.474149388 +0200 @@ -113,7 +113,6 @@ config MEDIA_CONTROLLER_DVB config MEDIA_CONTROLLER_REQUEST_API bool "Enable Media controller Request API (EXPERIMENTAL)" depends on MEDIA_CONTROLLER && STAGING_MEDIA - default n help DO NOT ENABLE THIS OPTION UNLESS YOU KNOW WHAT YOU'RE DOING. @@ -163,7 +162,6 @@ config DVB_MMAP depends on DVB_CORE depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE select VIDEOBUF2_VMALLOC - default n help This option enables DVB experimental memory-mapped API, which reduces the number of context switches to read DVB buffers, as @@ -189,7 +187,6 @@ config DVB_NET config TTPCI_EEPROM tristate depends on I2C - default n source "drivers/media/dvb-core/Kconfig" Index: b/drivers/media/dvb-core/Kconfig =================================================================== --- a/drivers/media/dvb-core/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/dvb-core/Kconfig 2019-04-12 12:17:55.898148895 +0200 @@ -18,7 +18,6 @@ config DVB_MAX_ADAPTERS config DVB_DYNAMIC_MINORS bool "Dynamic DVB minor allocation" depends on DVB_CORE - default n help If you say Y here, the DVB subsystem will use dynamic minor allocation for any device that uses the DVB major number. @@ -31,7 +30,6 @@ config DVB_DYNAMIC_MINORS config DVB_DEMUX_SECTION_LOSS_LOG bool "Enable DVB demux section packet loss log" depends on DVB_CORE - default n help Enable extra log messages meant to detect packet loss inside the Kernel. @@ -44,7 +42,6 @@ config DVB_DEMUX_SECTION_LOSS_LOG config DVB_ULE_DEBUG bool "Enable DVB net ULE packet debug messages" depends on DVB_CORE - default n help Enable extra log messages meant to detect problems while handling DVB network ULE packet loss inside the Kernel. Index: b/drivers/media/dvb-frontends/Kconfig =================================================================== --- a/drivers/media/dvb-frontends/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/dvb-frontends/Kconfig 2019-04-12 12:17:55.914148895 +0200 @@ -945,5 +945,4 @@ comment "Tools to develop new frontends" config DVB_DUMMY_FE tristate "Dummy frontend driver" depends on DVB_CORE - default n endmenu Index: b/drivers/media/pci/ddbridge/Kconfig =================================================================== --- a/drivers/media/pci/ddbridge/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/pci/ddbridge/Kconfig 2019-04-12 12:21:18.146153988 +0200 @@ -35,7 +35,6 @@ config DVB_DDBRIDGE_MSIENABLE bool "Enable Message Signaled Interrupts (MSI) per default (EXPERIMENTAL)" depends on DVB_DDBRIDGE depends on PCI_MSI - default n help Use PCI MSI (Message Signaled Interrupts) per default. Enabling this might lead to I2C errors originating from the bridge in conjunction Index: b/drivers/media/pci/dt3155/Kconfig =================================================================== --- a/drivers/media/pci/dt3155/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/pci/dt3155/Kconfig 2019-04-12 12:21:01.678153573 +0200 @@ -2,7 +2,6 @@ config VIDEO_DT3155 tristate "DT3155 frame grabber" depends on PCI && VIDEO_DEV && VIDEO_V4L2 select VIDEOBUF2_DMA_CONTIG - default n help Enables dt3155 device driver for the DataTranslation DT3155 frame grabber. Say Y here if you have this hardware. Index: b/drivers/media/pci/ivtv/Kconfig =================================================================== --- a/drivers/media/pci/ivtv/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/pci/ivtv/Kconfig 2019-04-12 12:21:37.202154468 +0200 @@ -31,7 +31,6 @@ config VIDEO_IVTV config VIDEO_IVTV_DEPRECATED_IOCTLS bool "enable the DVB ioctls abuse on ivtv driver" depends on VIDEO_IVTV - default n help Enable the usage of the a DVB set of ioctls that were abused by IVTV driver for a while. @@ -76,7 +75,6 @@ config VIDEO_FB_IVTV config VIDEO_FB_IVTV_FORCE_PAT bool "force cx23415 framebuffer init with x86 PAT enabled" depends on VIDEO_FB_IVTV && X86_PAT - default n help With PAT enabled, the cx23415 framebuffer driver does not utilize write-combined caching on the framebuffer memory. Index: b/drivers/media/platform/Kconfig =================================================================== --- a/drivers/media/platform/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/platform/Kconfig 2019-04-12 12:19:20.390151022 +0200 @@ -5,7 +5,6 @@ menuconfig V4L_PLATFORM_DRIVERS bool "V4L platform devices" depends on MEDIA_CAMERA_SUPPORT - default n help Say Y here to enable support for platform-specific V4L drivers. @@ -154,7 +153,6 @@ config VIDEO_TI_CAL depends on SOC_DRA7XX || COMPILE_TEST select VIDEOBUF2_DMA_CONTIG select V4L2_FWNODE - default n help Support for the TI CAL (Camera Adaptation Layer) block found on DRA72X SoC. @@ -167,7 +165,6 @@ menuconfig V4L_MEM2MEM_DRIVERS bool "Memory-to-memory multimedia devices" depends on VIDEO_V4L2 depends on MEDIA_CAMERA_SUPPORT - default n help Say Y here to enable selecting drivers for V4L devices that use system memory for both source and destination buffers, as opposed @@ -235,7 +232,6 @@ config VIDEO_MEDIATEK_MDP select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV select VIDEO_MEDIATEK_VPU - default n help It is a v4l2 driver and present in Mediatek MT8173 SoCs. The driver supports for scaling and color space conversion. @@ -251,7 +247,6 @@ config VIDEO_MEDIATEK_VCODEC select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV select VIDEO_MEDIATEK_VPU - default n help Mediatek video codec driver provides HW capability to encode and decode in a range of video formats @@ -275,7 +270,6 @@ config VIDEO_SAMSUNG_S5P_G2D depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV - default n help This is a v4l2 driver for Samsung S5P and EXYNOS4 G2D 2d graphics accelerator. @@ -295,7 +289,6 @@ config VIDEO_SAMSUNG_S5P_MFC depends on VIDEO_DEV && VIDEO_V4L2 depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST select VIDEOBUF2_DMA_CONTIG - default n help MFC 5.1 and 6.x driver for V4L2 @@ -458,7 +451,6 @@ config VIDEO_ROCKCHIP_RGA depends on ARCH_ROCKCHIP || COMPILE_TEST select VIDEOBUF2_DMA_SG select V4L2_MEM2MEM_DEV - default n help This is a v4l2 driver for Rockchip SOC RGA 2d graphics accelerator. Rockchip RGA is a separate 2D raster graphic acceleration unit. @@ -476,7 +468,6 @@ config VIDEO_TI_VPE select VIDEO_TI_VPDMA select VIDEO_TI_SC select VIDEO_TI_CSC - default n help Support for the TI VPE(Video Processing Engine) block found on DRA7XX SoC. @@ -529,7 +520,6 @@ config VIDEO_VIM2M depends on VIDEO_DEV && VIDEO_V4L2 select VIDEOBUF2_VMALLOC select V4L2_MEM2MEM_DEV - default n help This is a virtual test device for the memory-to-memory driver framework. @@ -541,7 +531,6 @@ endif #V4L_TEST_DRIVERS menuconfig DVB_PLATFORM_DRIVERS bool "DVB platform devices" depends on MEDIA_DIGITAL_TV_SUPPORT - default n help Say Y here to enable support for platform-specific Digital TV drivers. @@ -661,7 +650,6 @@ endif #CEC_PLATFORM_DRIVERS menuconfig SDR_PLATFORM_DRIVERS bool "SDR platform devices" depends on MEDIA_SDR_SUPPORT - default n help Say Y here to enable support for platform-specific SDR Drivers. Index: b/drivers/media/platform/omap/Kconfig =================================================================== --- a/drivers/media/platform/omap/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/platform/omap/Kconfig 2019-04-12 12:19:52.510151831 +0200 @@ -13,6 +13,5 @@ config VIDEO_OMAP2_VOUT select VIDEOBUF_DMA_CONTIG select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3 select FRAME_VECTOR - default n help V4L2 Display driver support for OMAP2/3 based boards. Index: b/drivers/media/platform/vicodec/Kconfig =================================================================== --- a/drivers/media/platform/vicodec/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/platform/vicodec/Kconfig 2019-04-12 12:17:55.926148895 +0200 @@ -3,7 +3,6 @@ config VIDEO_VICODEC depends on VIDEO_DEV && VIDEO_V4L2 select VIDEOBUF2_VMALLOC select V4L2_MEM2MEM_DEV - default n help Driver for a Virtual Codec Index: b/drivers/media/platform/vimc/Kconfig =================================================================== --- a/drivers/media/platform/vimc/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/platform/vimc/Kconfig 2019-04-12 12:21:54.838154912 +0200 @@ -3,7 +3,6 @@ config VIDEO_VIMC depends on VIDEO_DEV && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API select VIDEOBUF2_VMALLOC select VIDEO_V4L2_TPG - default n help Skeleton driver for Virtual Media Controller Index: b/drivers/media/platform/vivid/Kconfig =================================================================== --- a/drivers/media/platform/vivid/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/platform/vivid/Kconfig 2019-04-12 12:22:10.306155301 +0200 @@ -10,7 +10,6 @@ config VIDEO_VIVID select VIDEOBUF2_VMALLOC select VIDEOBUF2_DMA_CONTIG select VIDEO_V4L2_TPG - default n help Enables a virtual video driver. This driver emulates a webcam, TV, S-Video and HDMI capture hardware, including VBI support for Index: b/drivers/media/radio/Kconfig =================================================================== --- a/drivers/media/radio/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/radio/Kconfig 2019-04-12 12:20:31.598152816 +0200 @@ -232,7 +232,6 @@ source "drivers/media/radio/wl128x/Kconf menuconfig V4L_RADIO_ISA_DRIVERS bool "ISA radio devices" depends on ISA || COMPILE_TEST - default n help Say Y here to enable support for these ISA drivers. Index: b/drivers/media/usb/s2255/Kconfig =================================================================== --- a/drivers/media/usb/s2255/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/usb/s2255/Kconfig 2019-04-12 12:17:55.942148896 +0200 @@ -2,7 +2,6 @@ config USB_S2255 tristate "USB Sensoray 2255 video capture device" depends on VIDEO_V4L2 select VIDEOBUF2_VMALLOC - default n help Say Y here if you want support for the Sensoray 2255 USB device. This driver can be compiled as a module, called s2255drv. Index: b/drivers/media/v4l2-core/Kconfig =================================================================== --- a/drivers/media/v4l2-core/Kconfig 2019-04-12 12:17:55.946148896 +0200 +++ b/drivers/media/v4l2-core/Kconfig 2019-04-12 12:20:48.182153233 +0200 @@ -12,7 +12,6 @@ config VIDEO_V4L2 config VIDEO_ADV_DEBUG bool "Enable advanced debug functionality on V4L2 drivers" - default n help Say Y here to enable advanced debugging functionality on some V4L devices. @@ -20,7 +19,6 @@ config VIDEO_ADV_DEBUG config VIDEO_FIXED_MINOR_RANGES bool "Enable old-style fixed minor ranges on drivers/video devices" - default n help Say Y here to enable the old-style fixed-range minor assignments. Only useful if you rely on the old behavior and use mknod instead of udev.