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Subject: Re: [PATCH v1] qede: Use %pM format specifier for MAC addresses
From:   Joe Perches <joe@perches.com>
To:     Alexander Lobakin <alobakin@pm.me>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc:     Ariel Elior <aelior@marvell.com>, GR-everest-linux-l2@marvell.com,
        netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, linux-kernel@vger.kernel.org
Date:   Thu, 30 Jul 2020 10:22:43 -0700
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On Thu, 2020-07-30 at 16:29 +0000, Alexander Lobakin wrote:
> From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Date: Thu, 30 Jul 2020 19:00:57 +0300
> 
> > Convert to %pM instead of using custom code.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > ---
> >  drivers/net/ethernet/qlogic/qede/qede_main.c | 4 +---
> >  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> Thanks!
> 
> Acked-by: Alexander Lobakin <alobakin@pm.me>
> 
> > diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
> > index 1aaae3203f5a..4250c17940c0 100644
> > --- a/drivers/net/ethernet/qlogic/qede/qede_main.c
> > +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
> > @@ -144,9 +144,7 @@ static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
> >  {
> >  	struct qede_dev *edev = netdev_priv(ndev);
> >  
> > -	DP_VERBOSE(edev, QED_MSG_IOV,
> > -		   "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
> > -		   mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
> > +	DP_VERBOSE(edev, QED_MSG_IOV, "Setting MAC %pM to VF [%d]\n", mac, vfidx);
> >  
> >  	if (!is_valid_ether_addr(mac)) {
> >  		DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
> > -- 
> > 2.27.0

I would have expected the debugging output to be in the
opposite order with the valid address test first.

Something like:
---
 drivers/net/ethernet/qlogic/qede/qede_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 1aaae3203f5a..30bf9aebd5b8 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -144,15 +144,15 @@ static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
 {
 	struct qede_dev *edev = netdev_priv(ndev);
 
-	DP_VERBOSE(edev, QED_MSG_IOV,
-		   "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
-		   mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
-
 	if (!is_valid_ether_addr(mac)) {
-		DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
+		DP_VERBOSE(edev, QED_MSG_IOV,
+			   "Invalid MAC address %pM for VF [%d]\n", mac, vfidx);
 		return -EINVAL;
 	}
 
+	DP_VERBOSE(edev, QED_MSG_IOV, "Setting MAC %pM to VF [%d]\n",
+		   mac, vfidx);
+
 	return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
 }