linux-kernel - make *_defconfig does not handle modified *

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Message-ID: <CAEXMXLRu2HU5AmDJbVn8BZkDfgyvK2rH7egBniumEY49J87sTg@mail.gmail.com>
Date:   Tue, 9 Jul 2019 10:57:17 +0200
From:   Nuno Gonçalves <nunojpg@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: make *_defconfig does not handle modified *_defconfig files

Hi,

Considering i have arch/arm/configs/abc_defconfig, I can run "make
abc_defconfig" repeatedly, and always get output

# configuration written to .config

or

# No change to .config

But if I now change arch/arm/configs/abc_defconfig, even just the
modification date, then "make abc_defconfig" no longer works. I need
to make clean or delete a file to trigger it (eg
scripts/kconfig/symbol.o).

Thanks,
Nuno