From: Markus Reichl m.reichl@fivetechno.de
stable inclusion from stable-v5.10.108 commit e27b51af54493a1ea17e41469a64db24e5d7983c bugzilla: https://gitee.com/openeuler/kernel/issues/I574A9
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 0bf3885324a8599e3af4c7379b8d4f621c9bbffa upstream.
On boards with LAN9514 and no preconfigured MAC address we don't get an ip address from DHCP after commit a049a30fc27c ("net: usb: Correct PHY handling of smsc95xx") anymore. Adding an explicit reset before starting the phy fixes the issue.
[1] https://lore.kernel.org/netdev/199eebbd6b97f52b9119c9fa4fd8504f8a34de18.came...
From: Gabriel Hojda ghojda@yo2urs.ro Fixes: a049a30fc27c ("net: usb: Correct PHY handling of smsc95xx") Signed-off-by: Gabriel Hojda ghojda@yo2urs.ro Signed-off-by: Markus Reichl m.reichl@fivetechno.de Tested-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: David S. Miller davem@davemloft.net Cc: Fabio Estevam festevam@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/net/usb/smsc95xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 81743dca0c3e..b17bff6a1015 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1961,7 +1961,8 @@ static const struct driver_info smsc95xx_info = { .bind = smsc95xx_bind, .unbind = smsc95xx_unbind, .link_reset = smsc95xx_link_reset, - .reset = smsc95xx_start_phy, + .reset = smsc95xx_reset, + .check_connect = smsc95xx_start_phy, .stop = smsc95xx_stop, .rx_fixup = smsc95xx_rx_fixup, .tx_fixup = smsc95xx_tx_fixup,