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mirror_ubuntu-kernels/drivers/net/ethernet/intel/igb
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Heiner Kallweit ac8c58f5b5 igb: fix deadlock caused by taking RTNL in RPM resume path 
Recent net core changes caused an issue with few Intel drivers
(reportedly igb), where taking RTNL in RPM resume path results in a
deadlock. See [0] for a bug report. I don't think the core changes
are wrong, but taking RTNL in RPM resume path isn't needed.
The Intel drivers are the only ones doing this. See [1] for a
discussion on the issue. Following patch changes the RPM resume path
to not take RTNL.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=215129
[1] https://lore.kernel.org/netdev/20211125074949.5f897431@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/t/

Fixes: bd869245a3 ("net: core: try to runtime-resume detached device in __dev_open")
Fixes: f32a213765 ("ethtool: runtime-resume netdev parent before ethtool ioctl ops")
Tested-by: Martin Stolpe <martin.stolpe@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20211220201844.2714498-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-20 18:48:09 -08:00
..
e1000_82575.c igb: Fix -Wunused-const-variable warning 2021-06-01 17:00:51 -07:00
e1000_82575.h igb: Add UDP segmentation offload support 2019-10-29 21:05:33 -07:00
e1000_defines.h igb: Redistribute memory for transmit packet buffers when in Qav mode 2021-04-16 10:42:52 -07:00
e1000_hw.h igb: Fix duplicate include guard 2021-03-19 08:47:46 -07:00
e1000_i210.c intel-ethernet: clean up W=1 warnings in kdoc 2020-09-25 16:28:59 -07:00
e1000_i210.h
e1000_mac.c igb: Add counter to i21x doublecheck 2021-07-23 09:08:11 -07:00
e1000_mac.h
e1000_mbx.c intel: clean up mismatched header comments 2021-03-23 11:34:02 -07:00
e1000_mbx.h
e1000_nvm.c ethernet/intel: Convert fallthrough code comments 2020-07-01 13:47:43 -07:00
e1000_nvm.h
e1000_phy.c igb: Fix fall-through warnings for Clang 2021-03-23 11:34:02 -07:00
e1000_phy.h
e1000_regs.h igb: add RR2DCDELAY to ethtool registers dump 2019-06-28 16:00:06 -07:00
igb_ethtool.c ethtool: extend coalesce setting uAPI with CQE mode 2021-08-24 07:38:29 -07:00
igb_hwmon.c igb: convert to use i2c_new_client_device() 2020-03-26 19:31:21 -07:00
igb_main.c igb: fix deadlock caused by taking RTNL in RPM resume path 2021-12-20 18:48:09 -08:00
igb_ptp.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-06-07 13:01:52 -07:00
igb.h igb: Fix XDP with PTP enabled 2021-06-03 08:38:37 -07:00
Makefile