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fakelb: add xmit_async after stop testcase 

This patch adds a suspended testcase into the xmit_async functionality.
In the hope that we can found race conditions when xmit_async is called
after an ieee802154_ops stop. This should never happen.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2015-06-14 16:48:44 +02:00 committed by Marcel Holtmann
parent e6f7ed9dc1
commit 789a99ecb9
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ieee802154/fakelb.c
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@ -41,6 +41,8 @@ struct fakelb_phy {
u8 page;
u8 channel;
bool suspended;
struct list_head list;
struct list_head list_ifup;
};
@ -69,6 +71,7 @@ static int fakelb_hw_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
struct fakelb_phy *current_phy = hw->priv, *phy;
read_lock_bh(&fakelb_ifup_phys_lock);
WARN_ON(current_phy->suspended);
list_for_each_entry(phy, &fakelb_ifup_phys, list_ifup) {
if (current_phy == phy)
continue;
@ -92,6 +95,7 @@ static int fakelb_hw_start(struct ieee802154_hw *hw)
struct fakelb_phy *phy = hw->priv;
write_lock_bh(&fakelb_ifup_phys_lock);
phy->suspended = false;
list_add(&phy->list_ifup, &fakelb_ifup_phys);
write_unlock_bh(&fakelb_ifup_phys_lock);
@ -103,6 +107,7 @@ static void fakelb_hw_stop(struct ieee802154_hw *hw)
struct fakelb_phy *phy = hw->priv;
write_lock_bh(&fakelb_ifup_phys_lock);
phy->suspended = true;
list_del(&phy->list_ifup);
write_unlock_bh(&fakelb_ifup_phys_lock);
}