From mboxrd@z Thu Jan 1 00:00:00 1970 From: Larry Finger Date: Tue, 19 Oct 2010 13:21:21 -0500 Subject: [PATCH] ssb: Clear RETRY_TIMEOUT in PCI Configuration In-Reply-To: <20101019180224.GB2441@tuxdriver.com> References: <4cbddbab.aeEgjpVFDD9GDTuy%Larry.Finger@lwfinger.net> <20101019180224.GB2441@tuxdriver.com> Message-ID: <4CBDE1A1.2070000@lwfinger.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: b43-dev@lists.infradead.org On 10/19/2010 01:02 PM, John W. Linville wrote: > On Tue, Oct 19, 2010 at 12:55:55PM -0500, Larry Finger wrote: >> MMIO log traces obtained using the Broadcom wl hybrid driver show that >> the RETRY_TIMEOUT register (0x41) in PCI configuration space is cleared >> if non-zero. Similar code found in other drivers such as ipw2100 show >> this operation is needed to keep PCI Tx retries from interfering with >> C3 CPU state. There are no known cases where omission of this code has >> caused a problem, but this patch is offered just in case such a situation >> occurs. >> >> Signed-off-by: Larry Finger >> --- >> >> John, >> >> No particular urgency for this patch. >> >> Larry > > I nearly missed it! Please do Cc linux-wireless at vger.kernel.org on patches. Sorry. I guess I'm out of practice. Larry