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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Jeff Garzik <jeff@garzik.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	rmk@arm.linux.org.uk
Subject: Re: [git patch] free_irq() fixes
Date: Tue, 22 Apr 2008 16:20:45 -0700 (PDT)	[thread overview]
Message-ID: <alpine.LFD.1.10.0804221616280.2779@woody.linux-foundation.org> (raw)
In-Reply-To: <480E6DE5.6010103@garzik.org>



On Tue, 22 Apr 2008, Jeff Garzik wrote:
> 
> (note, for mwave I couldn't use pSettings, since that might fail the ambiguity
> test)

Ok, so using the pointer to inside a specific pSettings field is fine.

But can you also explain to me why that insane driver does this:

	 static irqreturn_t UartInterrupt(int irq, void *dev_id)
	 {
	-       int irqno = (int)(unsigned long) dev_id;
	+       unsigned short *irqno = dev_id;
		...
		*irqno, dev_id);

instead of just ignoring "dev_id" entirely, and then just using that "irq" 
argument directly?

		Linus

  reply	other threads:[~2008-04-22 23:21 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-22 22:17 Jeff Garzik
2008-04-22 22:25 ` Linus Torvalds
2008-04-22 22:59   ` Jeff Garzik
2008-04-22 23:20     ` Linus Torvalds [this message]
2008-04-22 23:49       ` Jeff Garzik
2008-04-22 23:52         ` Linus Torvalds
2008-04-23  0:05           ` Adrian Bunk
2008-04-23  0:16             ` Linus Torvalds
2008-04-23 13:51               ` Rene Herman
2008-04-24  2:10                 ` Jeff Garzik
2008-04-24  2:19                   ` Linus Torvalds
2008-04-24  5:59                     ` Eric W. Biederman
2008-04-24 10:53                       ` Jeff Garzik
2008-04-24 15:16                         ` Linus Torvalds
2008-04-24 15:40                           ` Jeff Garzik
2008-04-24 15:55                             ` Linus Torvalds
2008-04-24 15:37                               ` Alan Cox
2008-04-24 16:20                                 ` Jeff Garzik
2008-04-24 16:16                               ` Jeff Garzik
2008-04-24 16:48                               ` Eric W. Biederman
2008-04-24 16:58                                 ` Linus Torvalds
2008-04-24 18:15                                   ` Eric W. Biederman
2008-04-24 17:30                                 ` Jeff Garzik
2008-04-25  2:53                                   ` Eric W. Biederman
2008-04-25  3:33                                     ` MSI, fun for the whole family (was Re: [git patch] free_irq() fixes) Jeff Garzik
2008-04-25  3:57                                       ` MSI, fun for the whole family Roland Dreier
2008-04-25  4:19                                         ` David Miller
2008-04-25  4:35                                         ` Jeff Garzik
2008-04-25  5:48                                           ` Eric W. Biederman
2008-04-25 22:44                                           ` Roland Dreier
2008-04-25  5:08                                       ` Eric W. Biederman

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