From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Schwab <schwab@linux-m68k.org>
Subject: Re: Interrupt issue on m68k platform and some fix
Date: Thu, 02 Jul 2009 10:24:35 +0200
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References: <4A4C3267.2040705@freescale.com>
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To: Lanttor <lanttor.guo@freescale.com>
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Lanttor <lanttor.guo@freescale.com> writes:

> My understanding of "*addql   #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)*"
> is that its meaning is equal to
> "current_thread_info()->preempt_count += HARDIRQ_OFFSET",

No, it isn't.  It is equivalent to
*(long *)((char *)&current_thread_info()->preempt_count + 1) += 1
which is of course completely bogus.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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