From: Juuso Oikarinen Date: Mon, 12 Oct 2009 12:08:53 +0000 (+0300) Subject: wl1271: Update TX path block calucation algo X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=207347e498cbe25fa2a8369edd49df43e56000be;p=linux-beck.git wl1271: Update TX path block calucation algo Update the TX path block calculation algorithm based on TI reference. Signed-off-by: Juuso Oikarinen Reviewed-by: Luciano Coelho Signed-off-by: Luciano Coelho Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c index 5d3aa4b26cf3..56a7f36380b7 100644 --- a/drivers/net/wireless/wl12xx/wl1271_tx.c +++ b/drivers/net/wireless/wl12xx/wl1271_tx.c @@ -57,8 +57,8 @@ 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) >> TX_HW_BLOCK_SHIFT_DIV; - excluded = (total_blocks << 2) + (skb->len & 0xff) + 34; + 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;