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s390/claw: remove "eieio" calls

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If the code really depends on ordering it's already racy. The additional
memory barriers (eieio) don't help with that.
If the code is not racy the memory barriers also aren't needed.

In any case, just remove them.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2012-05-14 12:58:26 +02:00 committed by Martin Schwidefsky
parent 0cd2f6201c
commit 521674e4ff
1 changed files with 0 additions and 3 deletions
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3
drivers/s390/net/claw.c
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@ -136,7 +136,6 @@ static inline void
claw_set_busy(struct net_device *dev)
{
((struct claw_privbk *)dev->ml_priv)->tbusy = 1;
eieio();
}
static inline void
@ -144,13 +143,11 @@ claw_clear_busy(struct net_device *dev)
{
clear_bit(0, &(((struct claw_privbk *) dev->ml_priv)->tbusy));
netif_wake_queue(dev);
eieio();
}
static inline int
claw_check_busy(struct net_device *dev)
{
eieio();
return ((struct claw_privbk *) dev->ml_priv)->tbusy;
}