iwlwifi: earlier rx allocation

Value of count is used to decide when to replenish rx buffers. If it is
equal or above 8 we replenish the buffers. Ensure there is no starvation
by initializing count to 8 - thus forcing replenish at first iteration.

This is helpful when rx receives batches of buffers smaller than 8.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -4287,7 +4287,7 @@ static void iwl3945_rx_handle(struct iwl3945_priv *priv)
 	int reclaim;
 	unsigned long flags;
 	u8 fill_rx = 0;
-	u32 count = 0;
+	u32 count = 8;
 
 	/* uCode's read index (stored in shared DRAM) indicates the last Rx
 	 * buffer that the driver may process (last buffer filled by ucode). */

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -4669,7 +4669,7 @@ static void iwl4965_rx_handle(struct iwl4965_priv *priv)
 	int reclaim;
 	unsigned long flags;
 	u8 fill_rx = 0;
-	u32 count = 0;
+	u32 count = 8;
 
 	/* uCode's read index (stored in shared DRAM) indicates the last Rx
 	 * buffer that the driver may process (last buffer filled by ucode). */