Re: [PATCH net-next v1 07/11] net: usb: lan78xx: Use ETIMEDOUT instead of ETIME in lan78xx_stop_hw

On Tue, Dec 10, 2024 at 03:08:18AM +0100, Andrew Lunn wrote:

On Mon, Dec 09, 2024 at 02:07:47PM +0100, Oleksij Rempel wrote:

quoted

Update `lan78xx_stop_hw` to return `-ETIMEDOUT` instead of `-ETIME` when
a timeout occurs. While `-ETIME` indicates a general timer expiration,
`-ETIMEDOUT` is more commonly used for signaling operation timeouts and
provides better consistency with standard error handling in the driver.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/net/usb/lan78xx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 2966f7e63617..c66e404f51ac 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c

@@ -844,9 +844,7 @@ static int lan78xx_stop_hw(struct lan78xx_net *dev, u32 reg, u32 hw_enabled,
 		} while (!stopped && !time_after(jiffies, timeout));
 	}
 
-	ret = stopped ? 0 : -ETIME;
-
-	return ret;
+	return stopped ? 0 : -ETIMEDOUT;

I've not looked at the call stack, but tx_complete() and rx_complete()
specifically looks for ETIME. Do they need to change as well?

No, the tx_complete() and rx_complete() will get error values in to the
urb->status from the USB stack. In this case it is a different ETIME.

I'll update commit message.

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