From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: brking@us.ibm.com
Cc: Greg KH <greg@kroah.com>, Paul Mackerras <paulus@samba.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] pci: Block config access during BIST
Date: Sat, 20 Nov 2004 11:23:00 +1100 [thread overview]
Message-ID: <1100910180.3812.63.camel@gaston> (raw)
In-Reply-To: <419E804E.2050004@us.ibm.com>
> I guess what I was having difficulty with was how to go from bus/devfn
> to pci_dev in the bus macros (to access the saved_config_space) and do this
> safely at interrupt level. The spinlock protecting the devices list on the
> pci_bus struct is never acquired with irqsave and all the existing
> functions to search for a given pci device are not callable from
> interrupt context.
Hrm... true, that is a problem...
Ben.
next prev parent reply other threads:[~2004-11-20 0:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-19 20:23 [PATCH 1/2] pci: Block config access during BIST brking
2004-11-19 21:32 ` Greg KH
2004-11-19 22:25 ` Brian King
2004-11-19 22:46 ` Benjamin Herrenschmidt
2004-11-19 23:22 ` Brian King
2004-11-20 0:23 ` Benjamin Herrenschmidt [this message]
2004-11-19 22:45 ` Benjamin Herrenschmidt
2004-11-20 2:27 ` Alan Cox
2004-11-20 7:09 ` Benjamin Herrenschmidt
2004-11-20 12:42 ` Alan Cox
2004-11-20 22:32 ` Benjamin Herrenschmidt
2004-11-20 23:38 ` Brian King
2004-11-21 0:06 ` Benjamin Herrenschmidt
2004-11-21 1:55 ` Brian King
2004-11-21 7:03 ` Benjamin Herrenschmidt
2004-11-21 17:22 ` Brian King
2004-12-03 15:26 ` Brian King
2004-11-24 11:49 ` Alan Cox
2004-11-25 22:00 ` Paul Mackerras
2004-11-25 21:11 ` Alan Cox
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