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From: Oliver Neukum <oneukum@suse.de>
To: Hayes Wang <hayeswang@realtek.com>
Cc: netdev@vger.kernel.org, nic_swsd@realtek.com,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH net] r8152: autoresume before setting MAC address
Date: Thu, 02 Oct 2014 10:44:55 +0200	[thread overview]
Message-ID: <1412239495.32060.8.camel@linux-0dmf.site> (raw)
In-Reply-To: <1394712342-15778-55-Taiwan-albertk@realtek.com>

On Thu, 2014-10-02 at 16:26 +0800, Hayes Wang wrote:
> Resume the device before setting the MAC address.
> 
> Signed-off-by: Hayes Wang <hayeswang@realtek.com>
> ---
>  drivers/net/usb/r8152.c | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index 604ef21..e823358 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -1007,9 +1007,16 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
>  {
>  	struct r8152 *tp = netdev_priv(netdev);
>  	struct sockaddr *addr = p;
> +	int ret;
> +
> +	ret = usb_autopm_get_interface(tp->intf);
> +	if (ret < 0)
> +		goto out1;
>  
> -	if (!is_valid_ether_addr(addr->sa_data))
> -		return -EADDRNOTAVAIL;

It would be more legant to check validity before you do
the pm operation. Error handling would be simpler.

	Regards
		Oliver



WARNING: multiple messages have this Message-ID (diff)
From: Oliver Neukum <oneukum-l3A5Bk7waGM@public.gmane.org>
To: Hayes Wang <hayeswang-Rasf1IRRPZFBDgjK7y7TUQ@public.gmane.org>
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	nic_swsd-Rasf1IRRPZFBDgjK7y7TUQ@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH net] r8152: autoresume before setting MAC address
Date: Thu, 02 Oct 2014 10:44:55 +0200	[thread overview]
Message-ID: <1412239495.32060.8.camel@linux-0dmf.site> (raw)
In-Reply-To: <1394712342-15778-55-Taiwan-albertk-Rasf1IRRPZFBDgjK7y7TUQ@public.gmane.org>

On Thu, 2014-10-02 at 16:26 +0800, Hayes Wang wrote:
> Resume the device before setting the MAC address.
> 
> Signed-off-by: Hayes Wang <hayeswang-Rasf1IRRPZFBDgjK7y7TUQ@public.gmane.org>
> ---
>  drivers/net/usb/r8152.c | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index 604ef21..e823358 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -1007,9 +1007,16 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
>  {
>  	struct r8152 *tp = netdev_priv(netdev);
>  	struct sockaddr *addr = p;
> +	int ret;
> +
> +	ret = usb_autopm_get_interface(tp->intf);
> +	if (ret < 0)
> +		goto out1;
>  
> -	if (!is_valid_ether_addr(addr->sa_data))
> -		return -EADDRNOTAVAIL;

It would be more legant to check validity before you do
the pm operation. Error handling would be simpler.

	Regards
		Oliver


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  reply	other threads:[~2014-10-02  8:44 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-02  8:26 [PATCH net] r8152: autoresume before setting MAC address Hayes Wang
2014-10-02  8:26 ` Hayes Wang
2014-10-02  8:44 ` Oliver Neukum [this message]
2014-10-02  8:44   ` Oliver Neukum
2014-10-02  9:03 ` [PATCH net v2] " Hayes Wang
2014-10-03 22:40   ` David Miller
2014-10-03 22:40     ` David Miller

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