e1000: remove irq_sem

irq_sem was just a hack to prevent interrupts from being enabled
unexpectedly in deep call paths.  Simply finding those call paths and
fixing them by hand results in a driver that behaves as we expect and
doesn't need the atomic at all.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index d73a6c1fbcff..a05aa51ecfa6 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -249,7 +249,6 @@ struct e1000_adapter {
 #ifdef CONFIG_E1000_NAPI
         spinlock_t tx_queue_lock;
 #endif
-        atomic_t irq_sem;
         unsigned int total_tx_bytes;
         unsigned int total_tx_packets;
         unsigned int total_rx_bytes;