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Message-ID: <20140930173900.51839e76@canb.auug.org.au>
Date: Tue, 30 Sep 2014 17:39:00 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Greg KH <greg@...ah.com>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: linux-next: build failure after merge of the tty tree
Hi Greg,
After merging the tty tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:
drivers/built-in.o: In function `.serial8250_stop_tx':
8250_core.c:(.text+0xda1f4): undefined reference to `.__xchg_called_with_bad_pointer'
drivers/built-in.o: In function `.serial8250_tx_chars':
(.text+0xda42c): undefined reference to `.__xchg_called_with_bad_pointer'
drivers/built-in.o: In function `.serial8250_start_tx':
8250_core.c:(.text+0xda630): undefined reference to `.__xchg_called_with_bad_pointer'
Caused by commit d74d5d1b7288 ("tty: serial: 8250_core: add run time
pm"). xchg is called with &p->rpm_tx_active and that is an unsigned
char. PowerPC (at least) only allows xchg with objects 4 (or 8 on 64
bit) bytes long.
I have used the version of the tty tree from next-20140926 for today.
--
Cheers,
Stephen Rothwell sfr@...b.auug.org.au
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