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Commit 95c291e8 authored by Jinesh K. Jayakumar's avatar Jinesh K. Jayakumar Committed by Gerrit - the friendly Code Review server
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msm: ipa: eth: Explicitly fetch initial link status 



Fetch link status of the ethernet device once after registering with
netdevice notifier since the register_netdevice_notifier() API replays
only NETDEV_REGISTER and NETDEV_UP events.

Change-Id: I8c2f8127cc5f6599da1683b2a2a127a8241820cb
Signed-off-by: default avatarJinesh K. Jayakumar <jineshk@codeaurora.org>
parent eb697fba

drivers/platform/msm/ipa/ipa_v3/ethernet/ipa_eth_net.c

+16 −4
Original line number Diff line number Diff line
@@ -355,6 +355,14 @@ static int ipa_eth_net_unlink_upper(struct ipa_eth_device *eth_dev, 
	return rc;

}



static bool ipa_eth_net_update_link(struct ipa_eth_device *eth_dev)

{

	return netif_carrier_ok(eth_dev->net_dev) ?

		!test_and_set_bit(IPA_ETH_IF_ST_LOWER_UP, &eth_dev->if_state) :

		test_and_clear_bit(IPA_ETH_IF_ST_LOWER_UP, &eth_dev->if_state);



}



static bool ipa_eth_net_event_up(struct ipa_eth_device *eth_dev,

		unsigned long event, void *ptr)

{
@@ -370,10 +378,7 @@ static bool ipa_eth_net_event_down(struct ipa_eth_device *eth_dev, 
static bool ipa_eth_net_event_change(struct ipa_eth_device *eth_dev,

		unsigned long event, void *ptr)

{

	return netif_carrier_ok(eth_dev->net_dev) ?

		!test_and_set_bit(IPA_ETH_IF_ST_LOWER_UP, &eth_dev->if_state) :

		test_and_clear_bit(IPA_ETH_IF_ST_LOWER_UP, &eth_dev->if_state);



	return ipa_eth_net_update_link(eth_dev);

}



static bool ipa_eth_net_event_pre_change_upper(struct ipa_eth_device *eth_dev,
@@ -464,6 +469,13 @@ int ipa_eth_net_open_device(struct ipa_eth_device *eth_dev) 
		goto err_register;

	}



	/* When registering with netdevice notifier, only REGISTER and UP events

	 * are replayed. Fetch current link state; future link state updates

	 * will be processed through CHANGE event.

	 */

	if (ipa_eth_net_update_link(eth_dev))

		ipa_eth_device_refresh_sched(eth_dev);



	return 0;



err_register: