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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: Tomasz Figa <tfiga@chromium.org>,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: kconfig: list unknown symbols in the old .config
Date: Wed, 16 Aug 2023 21:42:21 +0900	[thread overview]
Message-ID: <20230816124221.GH907732@google.com> (raw)

Hi,

We recently were hit (unnecessarily hard) when after kernel uprev we
figured that something wasn't working. The root cause was a rename of
the CONFIG_FOO option between kernel releases, which make oldconfig
doesn't warn/notify about.

Would it be possible to add either a new --listunknown mode to conf or
to somehow make it conf_warning("unknown symbol: %s\n", line) when it
reads a line from oldconf that it cannot sym_find()?

That would save a ton of time.

             reply	other threads:[~2023-08-16 12:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-16 12:42 Sergey Senozhatsky [this message]
2023-08-16 13:06 ` kconfig: list unknown symbols in the old .config Sergey Senozhatsky
2023-08-19 19:54 ` Jesse T
2023-08-20  2:30   ` Sergey Senozhatsky

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