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Message-ID: <20101006193245.698957cc@schatten.dmk.lab> Date: Wed, 6 Oct 2010 19:32:45 +0200 From: Florian Mickler <florian@...kler.org> To: "Guy, Wey-Yi" <wey-yi.w.guy@...el.com> Cc: Stanislaw Gruszka <sgruszka@...hat.com>, "linville@...driver.com" <linville@...driver.com>, "stable@...nel.org" <stable@...nel.org>, "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>, "Chatre, Reinette" <reinette.chatre@...el.com>, "ilw@...ux.intel.com" <ilw@...ux.intel.com>, "Berg, Johannes" <johannes.berg@...el.com>, "Cahill, Ben M" <ben.m.cahill@...el.com>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH wireless-2.6 or stable] iwlwifi: return error when fail to start scanning On Wed, 06 Oct 2010 09:12:58 -0700 "Guy, Wey-Yi" <wey-yi.w.guy@...el.com> wrote: > Hi Gruszka, > > On Wed, 2010-10-06 at 09:04 -0700, Stanislaw Gruszka wrote: > > This is stable friendly backport of wireless-testing commit > > 3eecce527c7434dfd16517ce08b49632c8a26717 "iwlwifi: unify scan start > > checks". Wireless-testing version include also a lot of cleanups. > > > > On error case in {iwl3945,iwlagn}_request_scan we queue abort_scan work, > > which in a fact do nothing, so we never complete the scan. Thats gives > > "WARNING: at net/wireless/core.c:614 wdev_cleanup_work" and stopped > > network connection until reload iwlwifi modules. Return of -EIO, and > > stopping queuing any work is a fix. > > > > Note there are still many cases when we can get: > > > > WARNING: at net/wireless/core.c:614 wdev_cleanup_work > > WARNING: at net/mac80211/scan.c:266 ieee80211_scan_completed > > WARNING: at net/mac80211/scan.c:269 ieee80211_scan_complete > > > > which are not fixed. Unfortunately does not exist single, small fix > > for that problems, and we probably will see some more bug reports > > with scan warnings. As solution we rewrite iwl-scan.c code to avoid > > all possible race conditions. That quite big patch set is queued > > for 2.6.37 . > > > > Signed-off-by: Stanislaw Gruszka <sgruszka@...hat.com> > > --- > > Patch is intended for wireless-2.6, or in case when it does not > > make 2.6.36 release, for -stable 2.6.36.y > > > > Is this the replacement for Mickler's patch? > > Thanks > Wey > This is on top of current mainline, as far as I see. (And it replaces the patch I sent few hours ago) Regards, Flo -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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