orinoco: encapsulate driver locking

Local bus and USB drivers will need to do locking differently.

The original orinoco_usb patches had a boolean variable controlling
whether spin_lock_bh was used, or irq based locking. This version
provides wrappers for the lock functions and the drivers specify the
functions pointers needed.

This will introduce a performance penalty, but I'm not expecting it to
be noticable.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/orinoco/hermes.h b/drivers/net/wireless/orinoco/hermes.h
index 18b268c54dfe..9e21ecdb4e70 100644
--- a/drivers/net/wireless/orinoco/hermes.h
+++ b/drivers/net/wireless/orinoco/hermes.h
@@ -393,6 +393,10 @@ struct hermes_ops {
                          u16 id, u16 offset);
         int (*bap_pwrite)(struct hermes *hw, int bap, const void *buf,
                           int len, u16 id, u16 offset);
+        void (*lock_irqsave)(spinlock_t *lock, unsigned long *flags);
+        void (*unlock_irqrestore)(spinlock_t *lock, unsigned long *flags);
+        void (*lock_irq)(spinlock_t *lock);
+        void (*unlock_irq)(spinlock_t *lock);
 };
 
 /* Basic control structure */