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From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: x86: clean up rwsem type system
Date: Thu, 21 Jan 2010 18:14:37 +0100	[thread overview]
Message-ID: <20100121171437.GA16994@elte.hu> (raw)
In-Reply-To: <alpine.LFD.2.00.1001171023440.13231@localhost.localdomain>


* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Sun, 17 Jan 2010, Ingo Molnar wrote:
> > 
> > FYI, -tip testing found that these changes break the UML build:
> > 
> > kernel/built-in.o: In function `__up_read':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:192: undefined reference to `call_rwsem_wake'
> > kernel/built-in.o: In function `__up_write':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:210: undefined reference to `call_rwsem_wake'
> > kernel/built-in.o: In function `__downgrade_write':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:228: undefined reference to `call_rwsem_downgrade_wake'
> > kernel/built-in.o: In function `__down_read':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:112: undefined reference to `call_rwsem_down_read_failed'
> > kernel/built-in.o: In function `__down_write_nested':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:154: undefined reference to `call_rwsem_down_write_failed'
> > collect2: ld returned 1 exit status
> 
> I think something like this should fix it.

That did the trick - thanks!

	Ingo

  reply	other threads:[~2010-01-21 17:14 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-13  0:21 x86-32: clean up rwsem inline asm statements Linus Torvalds
2010-01-13  0:45 ` Andreas Schwab
2010-01-13  1:26   ` Linus Torvalds
2010-01-13  0:48 ` H. Peter Anvin
2010-01-13  0:59   ` Linus Torvalds
2010-01-13  1:24     ` x86: avoid read-cycle on down_read_trylock Linus Torvalds
2010-01-13  1:57       ` x86: clean up rwsem type system Linus Torvalds
2010-01-13  2:16         ` Linus Torvalds
2010-01-14  7:03           ` H. Peter Anvin
2010-01-17  6:05             ` Ingo Molnar
2010-01-17 18:24               ` Linus Torvalds
2010-01-21 17:14                 ` Ingo Molnar [this message]
2010-01-13  5:03 ` [tip:x86/asm] x86-32: clean up rwsem inline asm statements tip-bot for Linus Torvalds

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