linux-kernel - scripts/config bug: can not enable CONFIG_FONT_MINI

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Date:   Wed, 16 Nov 2022 07:29:21 +0000
From:   "Zhou, Jie2X" <jie2x.zhou@...el.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "Li, Philip" <philip.li@...el.com>
Subject: scripts/config bug: can not enable CONFIG_FONT_MINI_4x6

hi,

This is a kernel bug.
./scripts/config convert "CONFIG_FONT_MINI_4x6" to "CONFIG_FONT_MINI_4X6=y" in config.
x->X, Lower case letters become upper case letters after process.
After "make olddefconfig", CONFIG_FONT_MINI_4x6 is not set.

Add CONFIG_FONT_MINI_4x6=y to .config.
After "make olddefconfig", CONFIG_FONT_MINI_4x6 is set.

enable CONFIG_FONT_MINI_4x6 by ./scripts/config:
[root@...oraguest1 linux_stable]# grep FONT_MINI_4 .config
[root@...oraguest1 linux_stable]# ./scripts/config --file .config --enable CONFIG_FONT_MINI_4x6
[root@...oraguest1 linux_stable]# grep FONT_MINI_4 .config
CONFIG_FONT_MINI_4X6=y
[root@...oraguest1 linux_stable]# make olddefconfig
#
# configuration written to .config
#
[root@...oraguest1 linux_stable]# grep FONT_MINI_4 .config
# CONFIG_FONT_MINI_4x6 is not set

enable CONFIG_FONT_MINI_4x6 by writting .config:
[root@...oraguest1 linux_stable]# echo CONFIG_FONT_MINI_4x6=y >> .config
[root@...oraguest1 linux_stable]# make olddefconfig
.config:6708:warning: override: reassigning to symbol FONT_MINI_4x6
#
# configuration written to .config
#
[root@...oraguest1 linux_stable]# grep FONT_MINI_4 .config
CONFIG_FONT_MINI_4x6=y

best regards,