[PATCH 3.2 113/115] jme: Do not enable NIC WoL functions on S0

[Ben Hutchings]

3.2.80-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Guo-Fu Tseng <coolda...@cooldavid.org>

commit 0772a99b818079e628a1da122ac7ee023faed83e upstream.

Otherwise it might be back on resume right after going to suspend in
some hardware.

Reported-by: Diego Viola <diego.vi...@gmail.com>
Signed-off-by: Guo-Fu Tseng <coolda...@cooldavid.org>
Signed-off-by: David S. Miller <da...@davemloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 drivers/net/ethernet/jme.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -269,11 +269,17 @@ jme_reset_mac_processor(struct jme_adapt
 }
 
 static inline void
-jme_clear_pm(struct jme_adapter *jme)
+jme_clear_pm_enable_wol(struct jme_adapter *jme)
 {
        jwrite32(jme, JME_PMCS, PMCS_STMASK | jme->reg_pmcs);
 }
 
+static inline void
+jme_clear_pm_disable_wol(struct jme_adapter *jme)
+{
+       jwrite32(jme, JME_PMCS, PMCS_STMASK);
+}
+
 static int
 jme_reload_eeprom(struct jme_adapter *jme)
 {
@@ -1856,7 +1862,7 @@ jme_open(struct net_device *netdev)
        struct jme_adapter *jme = netdev_priv(netdev);
        int rc;
 
-       jme_clear_pm(jme);
+       jme_clear_pm_disable_wol(jme);
        JME_NAPI_ENABLE(jme);
 
        tasklet_enable(&jme->linkch_task);
@@ -1928,7 +1934,7 @@ jme_powersave_phy(struct jme_adapter *jm
                jme_set_100m_half(jme);
                if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
                        jme_wait_link(jme);
-               jme_clear_pm(jme);
+               jme_clear_pm_enable_wol(jme);
        } else {
                jme_phy_off(jme);
        }
@@ -2616,7 +2622,6 @@ jme_set_wol(struct net_device *netdev,
        if (wol->wolopts & WAKE_MAGIC)
                jme->reg_pmcs |= PMCS_MFEN;
 
-       jwrite32(jme, JME_PMCS, jme->reg_pmcs);
        device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
 
        return 0;
@@ -3142,7 +3147,7 @@ jme_init_one(struct pci_dev *pdev,
        jme->mii_if.mdio_read = jme_mdio_read;
        jme->mii_if.mdio_write = jme_mdio_write;
 
-       jme_clear_pm(jme);
+       jme_clear_pm_disable_wol(jme);
        pci_set_power_state(jme->pdev, PCI_D0);
        device_set_wakeup_enable(&pdev->dev, true);
 
@@ -3277,7 +3282,7 @@ jme_resume(struct device *dev)
        if (!netif_running(netdev))
                return 0;
 
-       jme_clear_pm(jme);
+       jme_clear_pm_disable_wol(jme);
        jme_phy_on(jme);
        if (test_bit(JME_FLAG_SSET, &jme->flags))
                jme_set_settings(netdev, &jme->old_ecmd);