Alexander Duyck 2477158bfd e1000: Do not perform reset in reset_task if we are already down ... [ Upstream commit 49ee3c2ab5 ] We are seeing a deadlock in e1000 down when NAPI is being disabled. Looking over the kernel function trace of the system it appears that the interface is being closed and then a reset is hitting which deadlocks the interface as the NAPI interface is already disabled. To prevent this from happening I am disabling the reset task when __E1000_DOWN is already set. In addition code has been added so that we set the __E1000_DOWN while holding the __E1000_RESET flag in e1000_close in order to guarantee that the reset task will not run after we have started the close call. Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Tested-by: Maxim Zhukov <mussitantesmortem@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-01 13:18:03 +02:00
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Makefile	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00
e1000.h	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00
e1000_ethtool.c	e1000: fix memory leaks	2019-11-01 13:20:33 -07:00
e1000_hw.c	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00
e1000_hw.h	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00
e1000_main.c	e1000: Do not perform reset in reset_task if we are already down	2020-10-01 13:18:03 +02:00
e1000_osdep.h	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00
e1000_param.c	net: intel: Cleanup the copyright/license headers	2018-04-27 14:00:04 -04:00