From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth) Date: Fri, 04 Oct 2013 19:34:14 +0200 Subject: [PATCH 0/3] net: mv643xx_eth: various small fixes for v3.12 In-Reply-To: <20131004165354.GA9065@localhost> References: <1380711442-24735-1-git-send-email-sebastian.hesselbarth@gmail.com> <20131004165354.GA9065@localhost> Message-ID: <524EFC16.80104@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10/04/2013 06:53 PM, Ezequiel Garcia wrote: > On Wed, Oct 02, 2013 at 12:57:19PM +0200, Sebastian Hesselbarth wrote: >> This patch set comprises some one-liners to fix issues with repeated >> loading and unloading of a modular mv643xx_eth driver. >> >> First two patches take care of the periodic port statistic timer, that >> updates statistics by reading port registers using add_timer/mod_timer. >> >> Patch 1 moves timer re-schedule from mib_counters_update to the timer >> callback. As mib_counters_update is also called from non-timer context, >> this ensures the timer is reactivated from timer context only. >> >> Patch 2 moves initial timer schedule from _probe() time to right before >> the port is actually started as the corresponding del_timer_sync is at >> _stop() time. This fixes a regression, where unloading the driver from a >> non-started eth device can cause the timer to access deallocated mem. >> >> Patch 3 adds an assignment of the ports device_node to the corresponding >> self-created platform_device. This is required to allow fixups based on >> the device_node's compatible string later. Actually, it is also a potential >> regression because we already check compatible string for Kirkwood, but >> does not (yet) rely on the fixup. >> >> All patches are based on v3.12-rc3 and have been tested on Kirkwood-based >> Seagate Dockstar. >> >> Patches 1 and 2 can also possibly queued up for -stable. >> >> Sebastian Hesselbarth (3): >> net: mv643xx_eth: update statistics timer from timer context only >> net: mv643xx_eth: fix orphaned statistics timer crash >> net: mv643xx_eth: fix missing device_node for port devices >> >> drivers/net/ethernet/marvell/mv643xx_eth.c | 7 +++---- >> 1 file changed, 3 insertions(+), 4 deletions(-) >> >> --- >> Cc: David Miller >> Cc: Lennert Buytenhek >> Cc: Jason Cooper >> Cc: netdev at vger.kernel.org >> Cc: linux-arm-kernel at lists.infradead.org >> Cc: linux-kernel at vger.kernel.org > > Sorry for missing this series, somehow my filters failed to catch it. > > Anyway, I would expect these patches to have my Reported-by, but I'm > glad to see you've solved all the issues. True, thanks to Ezequiel for initially reporting the issues. I will have to be more careful about the Reported-by next time. > I see David has already applied them all, but I'll re-run my tests to > check there aren't any more issues if I can find some time next week. > > Thanks for taking care of it!