[v5,5/5] net: macb: fix call to pm_runtime in the suspend/resume functions
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Message ID 5d36a9f6956fb4fb55778cabd2c21bbfc3670cf5.1594384335.git.nicolas.ferre@microchip.com
State In Next
Commit 6c8f85cac98a4c6b767c4c4f6af7283724c32b47
Headers show
Series
  • net: macb: Wake-on-Lan magic packet fixes and GEM handling
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Commit Message

Nicolas Ferre July 10, 2020, 12:46 p.m. UTC
From: Nicolas Ferre <nicolas.ferre@microchip.com>

The calls to pm_runtime_force_suspend/resume() functions are only
relevant if the device is not configured to act as a WoL wakeup source.
Add the device_may_wakeup() test before calling them.

Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
---
Changes in v3:
 - remove the parenthesis around device_may_wakeup()
Changes in v2:
- new in v2 serries
 drivers/net/ethernet/cadence/macb_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Patch
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diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 548815255e22..f1f0976e7669 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4606,7 +4606,8 @@  static int __maybe_unused macb_suspend(struct device *dev)
 
 	if (bp->ptp_info)
 		bp->ptp_info->ptp_remove(netdev);
-	pm_runtime_force_suspend(dev);
+	if (!device_may_wakeup(dev))
+		pm_runtime_force_suspend(dev);
 
 	return 0;
 }
@@ -4621,7 +4622,8 @@  static int __maybe_unused macb_resume(struct device *dev)
 	if (!netif_running(netdev))
 		return 0;
 
-	pm_runtime_force_resume(dev);
+	if (!device_may_wakeup(dev))
+		pm_runtime_force_resume(dev);
 
 	if (bp->wol & MACB_WOL_ENABLED) {
 		macb_writel(bp, IDR, MACB_BIT(WOL));