[PATCH 4.9 44/65] net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Heiner Kallweit <hkallwe...@gmail.com>


[ Upstream commit 08f5138512180a479ce6b9d23b825c9f4cd3be77 ]

This condition wasn't adjusted when PHY_IGNORE_INTERRUPT (-2) was added
long ago. In case of PHY_IGNORE_INTERRUPT the MAC interrupt indicates
also PHY state changes and we should do what the symbol says.

Fixes: 84a527a41f38 ("net: phylib: fix interrupts re-enablement in phy_start")
Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/phy/phy.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -925,7 +925,7 @@ void phy_start(struct phy_device *phydev
                break;
        case PHY_HALTED:
                /* make sure interrupts are re-enabled for the PHY */
-               if (phydev->irq != PHY_POLL) {
+               if (phy_interrupt_is_valid(phydev)) {
                        err = phy_enable_interrupts(phydev);
                        if (err < 0)
                                break;