Commit ac00f36c authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Zheng Zengkai
Browse files

r8169: fix deadlock on RTL8125 in jumbo mtu mode

stable inclusion
from stable-v6.6.5
commit fbe43b7f02a2b578d547cec93dbca81e94c0dbb5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8N21P

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbe43b7f02a2b578d547cec93dbca81e94c0dbb5



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commit 59d395ed606d8df14615712b0cdcdadb2d962175 upstream.

The original change results in a deadlock if jumbo mtu mode is used.
Reason is that the phydev lock is held when rtl_reset_work() is called
here, and rtl_jumbo_config() calls phy_start_aneg() which also tries
to acquire the phydev lock. Fix this by calling rtl_reset_work()
asynchronously.

Fixes: 621735f59064 ("r8169: fix rare issue with broken rx after link-down on RTL8125")
Reported-by: default avatarIan Chen <free122448@hotmail.com>
Tested-by: default avatarIan Chen <free122448@hotmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/caf6a487-ef8c-4570-88f9-f47a659faf33@gmail.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 93149eaa
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