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MIPS: Malta: Enable BLK_DEV_INITRD

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This configuration is useful for boot testing malta_defconfig in QEMU
with just a simple cpio initrd, instead of a full ext4 rootfs.

This results in an increase of ~164KB of vmlinux (with GCC 11.2.0):

$ diskus vmlinux.before
11.19 MB (11,194,368 bytes)

$ diskus vmlinux.after
11.36 MB (11,358,208 bytes)

This size increase comes from the fact that usr/Kconfig is sourced when
CONFIG_BLK_DEV_INITRD is enabled, which defaults to supporting several
decompression algorithms for compressed initrds. This seems like a
reasonable tradeoff but these configurations could be disabled in the
future if there are complaints about the size increase.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Nathan Chancellor 2022-02-08 12:17:26 -07:00 committed by Thomas Bogendoerfer
parent e0a8b93efa
commit c47c7ab9b5
1 changed files with 1 additions and 0 deletions
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arch/mips/configs/malta_defconfig
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@ -4,6 +4,7 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_NAMESPACES=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y