net: libwx: fix device bus LAN ID

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commit a04ea57aae upstream.

The device bus LAN ID was obtained from PCI_FUNC(), but when a PF
port is passthrough to a virtual machine, the function number may not
match the actual port index on the device. This could cause the driver
to perform operations such as LAN reset on the wrong port.

Fix this by reading the LAN ID from port status register.

Fixes: a34b3e6ed8 ("net: txgbe: Store PCI info")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/B60A670C1F52CB8E+20251104062321.40059-1-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Jiawen Wu 2025-11-04 14:23:21 +08:00 • committed by Greg Kroah-Hartman

parent b42dbef4f2

commit f0b3ecdbb5

2 changed files with 4 additions and 3 deletions

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3

drivers/net/ethernet/wangxun/libwx/wx_hw.c

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4

drivers/net/ethernet/wangxun/libwx/wx_type.h

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