diff mbox series

[v2,2/2] net: usb: ax88179_178a: non necessary second random mac address

Message ID 20240326163107.306612-1-jtornosm@redhat.com (mailing list archive)
State Superseded
Headers show
Series [v2,1/2] net: usb: ax88179_178a: avoid the interface always configured as random address | expand

Commit Message

Jose Ignacio Tornos Martinez March 26, 2024, 4:31 p.m. UTC
If the mac address can not be read from the device registers or the
devicetree, a random address is generated, but this was already done from
usbnet_probe, so it is not necessary to call eth_hw_addr_random from here
again to generate another random address.

Indeed, when reset was also executed from bind, generate another random mac
address invalidated the check from usbnet_probe to configure if the assigned
mac address for the interface was random or not, because it is comparing
with the initial generated random address. Now, with only a reset from open
operation, it is just a harmless simplification.

cc: stable@vger.kernel.org # 6.6+
Fixes: 9fb137aef34e ("net: usb: ax88179_178a: allow optionally getting mac address from device tree")
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
---
V1 -> V2:
- Split the fix and the improvement in two patches and keep curly-brackets
as Simon Horman suggests.

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

Comments

Simon Horman March 27, 2024, 4 p.m. UTC | #1
On Tue, Mar 26, 2024 at 05:31:07PM +0100, Jose Ignacio Tornos Martinez wrote:
> If the mac address can not be read from the device registers or the
> devicetree, a random address is generated, but this was already done from
> usbnet_probe, so it is not necessary to call eth_hw_addr_random from here
> again to generate another random address.
> 
> Indeed, when reset was also executed from bind, generate another random mac
> address invalidated the check from usbnet_probe to configure if the assigned
> mac address for the interface was random or not, because it is comparing
> with the initial generated random address. Now, with only a reset from open
> operation, it is just a harmless simplification.
> 
> cc: stable@vger.kernel.org # 6.6+
> Fixes: 9fb137aef34e ("net: usb: ax88179_178a: allow optionally getting mac address from device tree")
> Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
> ---
> V1 -> V2:
> - Split the fix and the improvement in two patches and keep curly-brackets
> as Simon Horman suggests.

Hi Jose,

Thanks for splitting the patches.
They look good, but there are a few process issues.
Sorry for not being clearer in my previous email.

As the 2nd patch of the series is not a fix it:
- Should not have a fixes tag
- Should not be sent to stable
- Should be targeted at the net-next tree rather than the net tree

As the granularity of patch handling on netdev is generally at the
patchset level I believe that this means that you need to separately,
in different, new, email threads, repost:

1. Patch 1/2 of this series, targeted at net, with a Fixes tag

   [PATCH net v3] net: usb: ax88179_178a: avoid the interface always configured as random address

2. Patch 2/2 of this series, targeted at net-next, without a Fixes tag

   [PATCH net-next v3] et: usb: ax88179_178a: non necessary second random mac address

Also, please be sure to wait 24 hours since the posting of this patch-set
before reposting.

Some more information can be found here:
https://docs.kernel.org/process/maintainer-netdev.html

...

--
pw-bot: changes-requested
Jose Ignacio Tornos Martinez April 1, 2024, 8:06 a.m. UTC | #2
Hello Simon,

Returning after Easter.

I'm sorry I didn't understand you, I have to learn more about the procedure.
I hope to do it better now.

Thanks for your help

Best regards
José Ignacio
diff mbox series

Patch

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 8ca8ace93d9c..08c9b2ab9711 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1276,7 +1276,6 @@  static void ax88179_get_mac_addr(struct usbnet *dev)
 		dev->net->addr_assign_type = NET_ADDR_PERM;
 	} else {
 		netdev_info(dev->net, "invalid MAC address, using random\n");
-		eth_hw_addr_random(dev->net);
 	}
 
 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,