linux-kernel - [PATCH v2 2/2] net: usb: ax88179_178a: avoid two consecutive device resets

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Message-ID: <20231120121239.54504-1-jtornosm@redhat.com>
Date:   Mon, 20 Nov 2023 13:11:41 +0100
From:   Jose Ignacio Tornos Martinez <jtornosm@...hat.com>
To:     pabeni@...hat.com
Cc:     davem@...emloft.net, edumazet@...gle.com, jtornosm@...hat.com,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        weihao.bj@...system.com
Subject: [PATCH v2 2/2] net: usb: ax88179_178a: avoid two consecutive device resets

The device is always reset two consecutive times (ax88179_reset is called
twice), one from usbnet_probe during the device binding and the other from
usbnet_open.

Remove the non-necessary reset during the device binding and let the reset
operation from open to keep the normal behavior (tested with generic ASIX
Electronics Corp. AX88179 Gigabit Ethernet device).

Fixes: e2ca90c276e1f ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Reported-by: Herb Wei <weihao.bj@...system.com>
Tested-by: Herb Wei <weihao.bj@...system.com>
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@...hat.com>
---
V1 -> V2:
- Add Fixes tag.
- Follow Paolo Abeni's suggestion and remove the binding reset, not the
  reset operation to keep the normal behavior.

 drivers/net/usb/ax88179_178a.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 4ea0e155bb0d..8d835fbc4316 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1298,8 +1298,6 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	netif_set_tso_max_size(dev->net, 16384);
 
-	ax88179_reset(dev);
-
 	return 0;
 }
 
-- 
2.42.0