netdev - Re: [PATCH] net: macb: do not scan PHYs manually

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Date:	Thu, 28 Apr 2016 22:37:26 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Nathan Sullivan <nathan.sullivan@...com>
Cc:	kbuild-all@...org, nicolas.ferre@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nathan Sullivan <nathan.sullivan@...com>
Subject: Re: [PATCH] net: macb: do not scan PHYs manually

Hi,

[auto build test WARNING on v4.6-rc5]
[cannot apply to net-next/master next-20160428]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Nathan-Sullivan/net-macb-do-not-scan-PHYs-manually/20160428-222826
config: powerpc-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/cadence/macb.c: In function 'macb_mii_init':
>> drivers/net/ethernet/cadence/macb.c:427:20: warning: unused variable 'i' [-Wunused-variable]
     int err = -ENXIO, i;
                       ^

vim +/i +427 drivers/net/ethernet/cadence/macb.c

222ca8e0 drivers/net/ethernet/cadence/macb.c Nathan Sullivan   2015-05-22  411  		phydev->supported &= ~SUPPORTED_1000baseT_Half;
222ca8e0 drivers/net/ethernet/cadence/macb.c Nathan Sullivan   2015-05-22  412  
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  413  	phydev->advertising = phydev->supported;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  414  
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  415  	bp->link = 0;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  416  	bp->speed = 0;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  417  	bp->duplex = -1;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  418  	bp->phy_dev = phydev;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  419  
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  420  	return 0;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  421  }
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  422  
421d9df0 drivers/net/ethernet/cadence/macb.c Cyrille Pitchen   2015-03-07  423  static int macb_mii_init(struct macb *bp)
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  424  {
84e0cdb0 drivers/net/ethernet/cadence/macb.c Jamie Iles        2011-03-08  425  	struct macb_platform_data *pdata;
148cbb53 drivers/net/ethernet/cadence/macb.c Boris BREZILLON   2013-08-22  426  	struct device_node *np;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12 @427  	int err = -ENXIO, i;
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  428  
3dbda77e drivers/net/macb.c                  Uwe Kleine-Koenig 2009-07-23  429  	/* Enable management port */
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  430  	macb_writel(bp, NCR, MACB_BIT(MPE));
6c36a707 drivers/net/macb.c                  frederic RODO     2007-07-12  431  
298cf9be drivers/net/macb.c                  Lennert Buytenhek 2008-10-08  432  	bp->mii_bus = mdiobus_alloc();
298cf9be drivers/net/macb.c                  Lennert Buytenhek 2008-10-08  433  	if (bp->mii_bus == NULL) {
298cf9be drivers/net/macb.c                  Lennert Buytenhek 2008-10-08  434  		err = -ENOMEM;
298cf9be drivers/net/macb.c                  Lennert Buytenhek 2008-10-08  435  		goto err_out;

:::::: The code at line 427 was first introduced by commit
:::::: 6c36a7074436e181fb3df41f66bbdaf53980951e macb: Use generic PHY layer

:::::: TO: frederic RODO <f.rodo@...-technologies.fr>
:::::: CC: Jeff Garzik <jeff@...zik.org>

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