[PATCH 4.4 156/163] jme: Do not enable NIC WoL functions on S0

Greg Kroah-Hartman
2016-05-03T00:30:13Z

From: Guo-Fu Tseng <cooldavid@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.viola@gmail.com>
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
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
@@ -270,11 +270,17 @@ 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)
{
@@ -1853,7 +1859,7 @@ 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_init(&jme->linkch_task, jme_link_change_tasklet,
@@ -1929,7 +1935,7 @@ 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);
}
@@ -2646,7 +2652,6 @@ 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;
@@ -3172,7 +3177,7 @@ 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);
device_set_wakeup_enable(&pdev->dev, true);

jme_set_phyfifo_5level(jme);
@@ -3304,7 +3309,7 @@ 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);