[PATCH] kernel/5.10: disable CONFIG_DEVTMPFS{,_MOUNT}

[Daniel Golle]

On Wed, Jan 05, 2022 at 03:54:56PM +0000, Daniel Golle wrote:
> On Wed, Jan 05, 2022 at 03:51:09PM +0000, Rui Salvaterra wrote:
> > We rely on procd to create/populate /dev for us. These can be safely disabled.
> 
> NACK. Disabling this will afaik break LXC and containers relying on it.
> We could enable it selectively on !SMALL_FLASH instead, to safe space
> on targets where anyway there are no resources for containers.

Just realizing that this is already defined in Config-kernel.in, so
removing it from the target configs is the right thing to do, just
the reasoning is different ;)

> 
> > 
> > Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
> > ---
> >  target/linux/archs38/config-5.10              | 1 -
> >  target/linux/layerscape/armv7/config-5.10     | 2 --
> >  target/linux/layerscape/armv8_64b/config-5.10 | 2 --
> >  target/linux/mediatek/mt7622/config-5.10      | 2 --
> >  target/linux/oxnas/config-5.10                | 2 --
> >  target/linux/rockchip/armv8/config-5.10       | 2 --
> >  6 files changed, 11 deletions(-)
> > 
> > diff --git a/target/linux/archs38/config-5.10 b/target/linux/archs38/config-5.10
> > index 5ba3877a64..b082a47331 100644
> > --- a/target/linux/archs38/config-5.10
> > +++ b/target/linux/archs38/config-5.10
> > @@ -84,7 +84,6 @@ CONFIG_CRYPTO_RNG=y
> >  CONFIG_CRYPTO_RNG2=y
> >  CONFIG_CRYPTO_RNG_DEFAULT=y
> >  CONFIG_CRYPTO_SHA256=y
> > -CONFIG_DEVTMPFS=y
> >  CONFIG_DMADEVICES=y
> >  CONFIG_DMA_DIRECT_REMAP=y
> >  CONFIG_DMA_ENGINE=y
> > diff --git a/target/linux/layerscape/armv7/config-5.10 b/target/linux/layerscape/armv7/config-5.10
> > index 0ec201030f..dd97d67cba 100644
> > --- a/target/linux/layerscape/armv7/config-5.10
> > +++ b/target/linux/layerscape/armv7/config-5.10
> > @@ -170,8 +170,6 @@ CONFIG_DETECT_HUNG_TASK=y
> >  # CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND is not set
> >  # CONFIG_DEVFREQ_GOV_USERSPACE is not set
> >  # CONFIG_DEVFREQ_THERMAL is not set
> > -CONFIG_DEVTMPFS=y
> > -CONFIG_DEVTMPFS_MOUNT=y
> >  CONFIG_DMADEVICES=y
> >  CONFIG_DMA_CMA=y
> >  CONFIG_DMA_ENGINE=y
> > diff --git a/target/linux/layerscape/armv8_64b/config-5.10 b/target/linux/layerscape/armv8_64b/config-5.10
> > index aa4be18f05..03c85a5aef 100644
> > --- a/target/linux/layerscape/armv8_64b/config-5.10
> > +++ b/target/linux/layerscape/armv8_64b/config-5.10
> > @@ -204,8 +204,6 @@ CONFIG_DECOMPRESS_LZMA=y
> >  CONFIG_DECOMPRESS_LZO=y
> >  CONFIG_DECOMPRESS_XZ=y
> >  CONFIG_DETECT_HUNG_TASK=y
> > -CONFIG_DEVTMPFS=y
> > -CONFIG_DEVTMPFS_MOUNT=y
> >  CONFIG_DIMLIB=y
> >  CONFIG_DMADEVICES=y
> >  CONFIG_DMATEST=y
> > diff --git a/target/linux/mediatek/mt7622/config-5.10 b/target/linux/mediatek/mt7622/config-5.10
> > index da1b283f70..946cab7738 100644
> > --- a/target/linux/mediatek/mt7622/config-5.10
> > +++ b/target/linux/mediatek/mt7622/config-5.10
> > @@ -134,8 +134,6 @@ CONFIG_CRYPTO_SHA256=y
> >  CONFIG_CRYPTO_ZSTD=y
> >  CONFIG_DCACHE_WORD_ACCESS=y
> >  CONFIG_DEBUG_MISC=y
> > -CONFIG_DEVTMPFS=y
> > -CONFIG_DEVTMPFS_MOUNT=y
> >  CONFIG_DIMLIB=y
> >  CONFIG_DMADEVICES=y
> >  CONFIG_DMATEST=y
> > diff --git a/target/linux/oxnas/config-5.10 b/target/linux/oxnas/config-5.10
> > index b0e4789d1e..93fbf5386d 100644
> > --- a/target/linux/oxnas/config-5.10
> > +++ b/target/linux/oxnas/config-5.10
> > @@ -117,8 +117,6 @@ CONFIG_DECOMPRESS_LZ4=y
> >  CONFIG_DECOMPRESS_LZMA=y
> >  CONFIG_DECOMPRESS_LZO=y
> >  CONFIG_DECOMPRESS_XZ=y
> > -CONFIG_DEVTMPFS=y
> > -CONFIG_DEVTMPFS_MOUNT=y
> >  CONFIG_DMA_CMA=y
> >  CONFIG_DMA_REMAP=y
> >  CONFIG_DNOTIFY=y
> > diff --git a/target/linux/rockchip/armv8/config-5.10 b/target/linux/rockchip/armv8/config-5.10
> > index 9769bab72d..1063489dc6 100644
> > --- a/target/linux/rockchip/armv8/config-5.10
> > +++ b/target/linux/rockchip/armv8/config-5.10
> > @@ -167,8 +167,6 @@ CONFIG_DEVFREQ_GOV_USERSPACE=y
> >  # CONFIG_DEVFREQ_THERMAL is not set
> >  CONFIG_DEVMEM=y
> >  # CONFIG_DEVPORT is not set
> > -CONFIG_DEVTMPFS=y
> > -CONFIG_DEVTMPFS_MOUNT=y
> >  CONFIG_DMADEVICES=y
> >  CONFIG_DMA_CMA=y
> >  CONFIG_DMA_DIRECT_REMAP=y
> > -- 
> > 2.34.1
> > 
> > 
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