Re: [PATCH -next v2 1/2] net: tc35815: Fix build error due to missed API change

From: Andrew Lunn
Date: Sun Jan 10 2016 - 10:46:51 EST


On Sun, Jan 10, 2016 at 07:10:44AM -0800, Guenter Roeck wrote:
> Commit 7f854420fbfe ("phy: Add API for {un}registering an mdio device to
> a bus") introduces an API to access mii_bus structures, but missed to
> update the tc35815 driver. This results in the following error message.
>
> drivers/net/ethernet/toshiba/tc35815.c: In function 'tc_mii_probe':
> drivers/net/ethernet/toshiba/tc35815.c:617:18: error:
> 'struct mii_bus' has no member named 'phy_map'
> drivers/net/ethernet/toshiba/tc35815.c:623:24: error:
> 'struct mii_bus' has no member named 'phy_map'
>
> Instead of looping over the list of phy addresses to find a phy chip,
> use phy_find_first(). While the intent of the original code was to return
> an error if more than one phy was specified, this code path was never
> executed because the loop aborted after finding the first phy. The
> original code is therefore semantically identical to phy_find_first(),
> thus it is simpler and more straightforward to use phy_find_first()
> directly.
>
> Fixes: 7f854420fbfe ("phy: Add API for {un}registering an mdio device to a bus")
> Cc: Andrew Lunn <andrew@xxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Acked-by: Andrew Lunn <andrew@xxxxxxx>

Thanks
Andrew

> ---
> v2: Use phy_find_first() instead of open-coding it.
>
> drivers/net/ethernet/toshiba/tc35815.c | 17 ++---------------
> 1 file changed, 2 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
> index fed5e3dfbc8f..71efe0092bec 100644
> --- a/drivers/net/ethernet/toshiba/tc35815.c
> +++ b/drivers/net/ethernet/toshiba/tc35815.c
> @@ -608,23 +608,10 @@ static void tc_handle_link_change(struct net_device *dev)
> static int tc_mii_probe(struct net_device *dev)
> {
> struct tc35815_local *lp = netdev_priv(dev);
> - struct phy_device *phydev = NULL;
> - int phy_addr;
> + struct phy_device *phydev;
> u32 dropmask;
>
> - /* find the first phy */
> - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
> - if (lp->mii_bus->phy_map[phy_addr]) {
> - if (phydev) {
> - printk(KERN_ERR "%s: multiple PHYs found\n",
> - dev->name);
> - return -EINVAL;
> - }
> - phydev = lp->mii_bus->phy_map[phy_addr];
> - break;
> - }
> - }
> -
> + phydev = phy_find_first(lp->mii_bus);
> if (!phydev) {
> printk(KERN_ERR "%s: no PHY found\n", dev->name);
> return -ENODEV;
> --
> 2.1.4
>