linux-kernel - REGRESSION: serial_cs broken by 8250 changes

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Date:	Fri, 3 Aug 2007 01:06:32 +0200
From:	Daniel Ritz <daniel.ritz-ml@...ssonline.ch>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Yinghai Lu <yinghai.lu@....com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	linux-kernel@...r.kernel.org
Subject: REGRESSION: serial_cs broken by 8250 changes

commit 18a8bd949d6adb311ea816125ff65050df1f3f6e breaks serial_cs badly
with an oops, completely killing PCMCIA.

register_console() now calls console->early_setup(). which in case of
8250.c (the only user anyway) is serial8250_console_early_setup()
which is __init, calling 8250_early.c:serial8250_find_port_for_earlycon()
which is __init as well. boom.

the changelog mentions SERIAL_PORT_DFNS removal which happens to be
commit 7e92b4fc345f5b6f57585fbe5ffdb0f24d7c9b26. but this got reverted
by commit 57d4810ea0d9ca58a7bcc1336607f0cede0a2abf. so i'd suggest to
just revert the 8250 changes as well.

rgds
-daniel
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