diff mbox

[net-next-2.6,5/5] ixgbe: Typecase '1' for 64 bit shift

Message ID 20090507204015.19886.92292.stgit@localhost.localdomain
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Kirsher, Jeffrey T May 7, 2009, 8:40 p.m. UTC 
From: Nelson, Shannon <shannon.nelson@intel.com>

Make sure we don't get any sign-extend issues when we shift a 1
into bit 31.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

 drivers/net/ixgbe/ixgbe_main.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)


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Comments

David Miller May 7, 2009, 9:56 p.m. UTC | #1 
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Thu, 07 May 2009 13:40:15 -0700

> Make sure we don't get any sign-extend issues when we shift a 1
> into bit 31.
> 
> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Applied.
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diff mbox

Patch

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 4a316e9..efb175b 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1307,7 +1307,7 @@  static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx,
 
 	set_bit(r_idx, q_vector->rxr_idx);
 	q_vector->rxr_count++;
-	a->rx_ring[r_idx].v_idx = 1 << v_idx;
+	a->rx_ring[r_idx].v_idx = (u64)1 << v_idx;
 }
 
 static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx,
@@ -1317,7 +1317,7 @@  static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx,
 
 	set_bit(t_idx, q_vector->txr_idx);
 	q_vector->txr_count++;
-	a->tx_ring[t_idx].v_idx = 1 << v_idx;
+	a->tx_ring[t_idx].v_idx = (u64)1 << v_idx;
 }
 
 /**
@@ -4057,7 +4057,7 @@  static void ixgbe_watchdog(unsigned long data)
 		int i;
 
 		for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++)
-			eics |= (1 << i);
+			eics |= ((u64)1 << i);
 
 		/* Cause software interrupt to ensure rx rings are cleaned */
 		switch (hw->mac.type) {