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* [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
@ 2021-08-17 14:06 Petko Manolov
  2021-08-17 16:06 ` Greg KH
  2021-08-18  9:19 ` David Miller
  0 siblings, 2 replies; 6+ messages in thread
From: Petko Manolov @ 2021-08-17 14:06 UTC (permalink / raw)
  To: netdev; +Cc: kuba, paskripkin, stable, davem, Petko Manolov

  - restore the behavior in enable_net_traffic() to avoid regressions - Jakub
    Kicinski;
  - hurried up and removed redundant assignment in pegasus_open() before yet
    another checker complains;
  - explicitly check for negative value in pegasus_set_wol(), even if
    usb_control_msg_send() never return positive number we'd still be in sync
    with the rest of the driver style;

Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
---
 drivers/net/usb/pegasus.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 652e9fcf0b77..1ef93082c772 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -446,7 +446,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
 		write_mii_word(pegasus, 0, 0x1b, &auxmode);
 	}
 
-	return 0;
+	return ret;
 fail:
 	netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
 	return ret;
@@ -835,7 +835,7 @@ static int pegasus_open(struct net_device *net)
 	if (!pegasus->rx_skb)
 		goto exit;
 
-	res = set_registers(pegasus, EthID, 6, net->dev_addr);
+	set_registers(pegasus, EthID, 6, net->dev_addr);
 
 	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
 			  usb_rcvbulkpipe(pegasus->usb, 1),
@@ -932,7 +932,7 @@ pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	pegasus->wolopts = wol->wolopts;
 
 	ret = set_register(pegasus, WakeupControl, reg78);
-	if (!ret)
+	if (ret < 0)
 		ret = device_set_wakeup_enable(&pegasus->usb->dev,
 						wol->wolopts);
 	return ret;
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
  2021-08-17 14:06 [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation; Petko Manolov
@ 2021-08-17 16:06 ` Greg KH
  2021-08-18  9:19 ` David Miller
  1 sibling, 0 replies; 6+ messages in thread
From: Greg KH @ 2021-08-17 16:06 UTC (permalink / raw)
  To: Petko Manolov; +Cc: netdev, kuba, paskripkin, stable, davem

On Tue, Aug 17, 2021 at 05:06:13PM +0300, Petko Manolov wrote:
>   - restore the behavior in enable_net_traffic() to avoid regressions - Jakub
>     Kicinski;
>   - hurried up and removed redundant assignment in pegasus_open() before yet
>     another checker complains;
>   - explicitly check for negative value in pegasus_set_wol(), even if
>     usb_control_msg_send() never return positive number we'd still be in sync
>     with the rest of the driver style;
> 
> Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
> ---
>  drivers/net/usb/pegasus.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
  2021-08-17 14:06 [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation; Petko Manolov
  2021-08-17 16:06 ` Greg KH
@ 2021-08-18  9:19 ` David Miller
  1 sibling, 0 replies; 6+ messages in thread
From: David Miller @ 2021-08-18  9:19 UTC (permalink / raw)
  To: petko.manolov; +Cc: netdev, kuba, paskripkin, stable


Please resubmit with a proper Fixes: tag, thank you.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
  2021-08-19 19:34 ` Jakub Kicinski
@ 2021-08-20  7:08   ` Petko Manolov
  0 siblings, 0 replies; 6+ messages in thread
From: Petko Manolov @ 2021-08-20  7:08 UTC (permalink / raw)
  To: Jakub Kicinski; +Cc: davem, netdev, paskripkin, stable

On 21-08-19 12:34:29, Jakub Kicinski wrote:
> On Thu, 19 Aug 2021 12:05:39 +0300 Petko Manolov wrote:
> >   - restore the behavior in enable_net_traffic() to avoid regressions - Jakub
> >     Kicinski;
> >   - hurried up and removed redundant assignment in pegasus_open() before yet
> >     another checker complains;
> >   - explicitly check for negative value in pegasus_set_wol(), even if
> >     usb_control_msg_send() never return positive number we'd still be in sync
> >     with the rest of the driver style;
> > 
> > Fixes: 8a160e2e9aeb net: usb: pegasus: Check the return value of get_geristers() and friends;
> 
> I guess this is fine but not exactly the preferred format, please see
> Submitting patches.

If the preferred format involves brackets and quotes - so be it.

> > Reported-by: Jakub Kicinski <kuba@kernel.org>
> > Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
> > ---
> >  drivers/net/usb/pegasus.c | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
> > index 652e9fcf0b77..1ef93082c772 100644
> > --- a/drivers/net/usb/pegasus.c
> > +++ b/drivers/net/usb/pegasus.c
> > @@ -446,7 +446,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
> >  		write_mii_word(pegasus, 0, 0x1b, &auxmode);
> >  	}
> >  
> > -	return 0;
> > +	return ret;
> 
> yup
> 
> >  fail:
> >  	netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
> >  	return ret;
> > @@ -835,7 +835,7 @@ static int pegasus_open(struct net_device *net)
> >  	if (!pegasus->rx_skb)
> >  		goto exit;
> >  
> > -	res = set_registers(pegasus, EthID, 6, net->dev_addr);
> > +	set_registers(pegasus, EthID, 6, net->dev_addr);
> 
> yup
> 
> >  	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
> >  			  usb_rcvbulkpipe(pegasus->usb, 1),
> > @@ -932,7 +932,7 @@ pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
> >  	pegasus->wolopts = wol->wolopts;
> >  
> >  	ret = set_register(pegasus, WakeupControl, reg78);
> > -	if (!ret)
> > +	if (ret < 0)
> >  		ret = device_set_wakeup_enable(&pegasus->usb->dev,
> >  						wol->wolopts);
> 
> now this looks incorrect and unrelated to recent changes (IOW the
> commit under Fixes), please drop this chunk

It may not be related, but the change is:

	a) obviously correct; and

	b) in sync with the rest of 'ret' evaluations;

To be honest i do not envision usb_control_msg_send() returning positive value
anytime soon, but (ret < 0) looks "more" correct than (!ret).


		Petko

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
  2021-08-19  9:05 Petko Manolov
@ 2021-08-19 19:34 ` Jakub Kicinski
  2021-08-20  7:08   ` Petko Manolov
  0 siblings, 1 reply; 6+ messages in thread
From: Jakub Kicinski @ 2021-08-19 19:34 UTC (permalink / raw)
  To: Petko Manolov; +Cc: davem, netdev, paskripkin, stable

On Thu, 19 Aug 2021 12:05:39 +0300 Petko Manolov wrote:
>   - restore the behavior in enable_net_traffic() to avoid regressions - Jakub
>     Kicinski;
>   - hurried up and removed redundant assignment in pegasus_open() before yet
>     another checker complains;
>   - explicitly check for negative value in pegasus_set_wol(), even if
>     usb_control_msg_send() never return positive number we'd still be in sync
>     with the rest of the driver style;
> 
> Fixes: 8a160e2e9aeb net: usb: pegasus: Check the return value of get_geristers() and friends;

I guess this is fine but not exactly the preferred format, please see
Submitting patches.

> Reported-by: Jakub Kicinski <kuba@kernel.org>
> Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
> ---
>  drivers/net/usb/pegasus.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
> index 652e9fcf0b77..1ef93082c772 100644
> --- a/drivers/net/usb/pegasus.c
> +++ b/drivers/net/usb/pegasus.c
> @@ -446,7 +446,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
>  		write_mii_word(pegasus, 0, 0x1b, &auxmode);
>  	}
>  
> -	return 0;
> +	return ret;

yup

>  fail:
>  	netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
>  	return ret;
> @@ -835,7 +835,7 @@ static int pegasus_open(struct net_device *net)
>  	if (!pegasus->rx_skb)
>  		goto exit;
>  
> -	res = set_registers(pegasus, EthID, 6, net->dev_addr);
> +	set_registers(pegasus, EthID, 6, net->dev_addr);

yup

>  	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
>  			  usb_rcvbulkpipe(pegasus->usb, 1),
> @@ -932,7 +932,7 @@ pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
>  	pegasus->wolopts = wol->wolopts;
>  
>  	ret = set_register(pegasus, WakeupControl, reg78);
> -	if (!ret)
> +	if (ret < 0)
>  		ret = device_set_wakeup_enable(&pegasus->usb->dev,
>  						wol->wolopts);

now this looks incorrect and unrelated to recent changes (IOW the
commit under Fixes), please drop this chunk

>  	return ret;


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation;
@ 2021-08-19  9:05 Petko Manolov
  2021-08-19 19:34 ` Jakub Kicinski
  0 siblings, 1 reply; 6+ messages in thread
From: Petko Manolov @ 2021-08-19  9:05 UTC (permalink / raw)
  To: davem; +Cc: netdev, kuba, paskripkin, stable, Petko Manolov

  - restore the behavior in enable_net_traffic() to avoid regressions - Jakub
    Kicinski;
  - hurried up and removed redundant assignment in pegasus_open() before yet
    another checker complains;
  - explicitly check for negative value in pegasus_set_wol(), even if
    usb_control_msg_send() never return positive number we'd still be in sync
    with the rest of the driver style;

Fixes: 8a160e2e9aeb net: usb: pegasus: Check the return value of get_geristers() and friends;
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
---
 drivers/net/usb/pegasus.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 652e9fcf0b77..1ef93082c772 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -446,7 +446,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
 		write_mii_word(pegasus, 0, 0x1b, &auxmode);
 	}
 
-	return 0;
+	return ret;
 fail:
 	netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
 	return ret;
@@ -835,7 +835,7 @@ static int pegasus_open(struct net_device *net)
 	if (!pegasus->rx_skb)
 		goto exit;
 
-	res = set_registers(pegasus, EthID, 6, net->dev_addr);
+	set_registers(pegasus, EthID, 6, net->dev_addr);
 
 	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
 			  usb_rcvbulkpipe(pegasus->usb, 1),
@@ -932,7 +932,7 @@ pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	pegasus->wolopts = wol->wolopts;
 
 	ret = set_register(pegasus, WakeupControl, reg78);
-	if (!ret)
+	if (ret < 0)
 		ret = device_set_wakeup_enable(&pegasus->usb->dev,
 						wol->wolopts);
 	return ret;
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-08-20  7:08 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-17 14:06 [PATCH] net: usb: pegasus: fixes of set_register(s) return value evaluation; Petko Manolov
2021-08-17 16:06 ` Greg KH
2021-08-18  9:19 ` David Miller
2021-08-19  9:05 Petko Manolov
2021-08-19 19:34 ` Jakub Kicinski
2021-08-20  7:08   ` Petko Manolov

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