---

yaml --- r: 193671 b: refs/heads/master c: 5c9417f h: refs/heads/master i: 193669: 2ce6198 193667: 1132c3a 193663: 5e77599 v: v3
git-mirror · Mar 9, 2010 · 83f25ea · 83f25ea
1 parent f3d7121
commit 83f25ea
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Showing 3 changed files with 5 additions and 9 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ac5e1e39c1eeaaff7e6f03bf7cf7a444b42fbc23
+refs/heads/master: 5c9417f1656b0f415f4be5a7cd7195ecadd7dd1a
diff --git a/trunk/drivers/net/wireless/wl12xx/wl1271_tx.c b/trunk/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -46,7 +46,7 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra)
 {
 	struct wl1271_tx_hw_descr *desc;
 	u32 total_len = skb->len + sizeof(struct wl1271_tx_hw_descr) + extra;
-	u32 total_blocks, excluded;
+	u32 total_blocks;
 	int id, ret = -EBUSY;
 
 	/* allocate free identifier for the packet */
@@ -56,12 +56,8 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra)
 
 	/* approximate the number of blocks required for this packet
 	   in the firmware */
-	/* FIXME: try to figure out what is done here and make it cleaner */
-	total_blocks = (total_len + 20) >> TX_HW_BLOCK_SHIFT_DIV;
-	excluded = (total_blocks << 2) + ((total_len + 20) & 0xff) + 34;
-	total_blocks += (excluded > 252) ? 2 : 1;
-	total_blocks += TX_HW_BLOCK_SPARE;
-
+	total_blocks = total_len + TX_HW_BLOCK_SIZE - 1;
+	total_blocks = total_blocks / TX_HW_BLOCK_SIZE + TX_HW_BLOCK_SPARE;
 	if (total_blocks <= wl->tx_blocks_available) {
 		desc = (struct wl1271_tx_hw_descr *)skb_push(
 			skb, total_len - skb->len);

diff --git a/trunk/drivers/net/wireless/wl12xx/wl1271_tx.h b/trunk/drivers/net/wireless/wl12xx/wl1271_tx.h
@@ -26,7 +26,7 @@
 #define __WL1271_TX_H__
 
 #define TX_HW_BLOCK_SPARE                2
-#define TX_HW_BLOCK_SHIFT_DIV            8
+#define TX_HW_BLOCK_SIZE                 252
 
 #define TX_HW_MGMT_PKT_LIFETIME_TU       2000
 /* The chipset reference driver states, that the "aid" value 1