[PATCH] orinoco: don't use any padding for Tx frames
hermes_bap_pwrite() supports odd-sized packets now. There is no
minimal packet size for 802.11. Also, hermes_bap_pwrite() supports
odd-sized packets now. This removes all reasons to pad the Tx data.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index 173e9e4..9fde17be 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -423,7 +423,7 @@
u16 txfid = priv->txfid;
char *p;
struct ethhdr *eh;
- int len, data_len, data_off;
+ int data_len, data_off;
struct hermes_tx_descriptor desc;
unsigned long flags;
@@ -455,13 +455,10 @@
return NETDEV_TX_OK;
}
- /* Length of the packet body */
- /* FIXME: what if the skb is smaller than this? */
- len = max_t(int, ALIGN(skb->len, 2), ETH_ZLEN);
- skb = skb_padto(skb, len);
- if (skb == NULL)
+ /* Check packet length */
+ data_len = skb->len;
+ if (data_len < ETH_HLEN)
goto fail;
- len -= ETH_HLEN;
eh = (struct ethhdr *)skb->data;
@@ -485,7 +482,7 @@
/* Encapsulate Ethernet-II frames */
if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
struct header_struct hdr;
- data_len = len;
+ data_len = skb->len - ETH_HLEN;
data_off = HERMES_802_3_OFFSET + sizeof(hdr);
p = skb->data + ETH_HLEN;
@@ -507,21 +504,13 @@
stats->tx_errors++;
goto fail;
}
- /* Actual xfer length - allow for padding */
- len = ALIGN(data_len, 2);
- if (len < ETH_ZLEN - ETH_HLEN)
- len = ETH_ZLEN - ETH_HLEN;
} else { /* IEEE 802.3 frame */
- data_len = len + ETH_HLEN;
+ data_len = skb->len;
data_off = HERMES_802_3_OFFSET;
p = skb->data;
- /* Actual xfer length - round up for odd length packets */
- len = ALIGN(data_len, 2);
- if (len < ETH_ZLEN)
- len = ETH_ZLEN;
}
- err = hermes_bap_pwrite_pad(hw, USER_BAP, p, data_len, len,
+ err = hermes_bap_pwrite(hw, USER_BAP, p, data_len,
txfid, data_off);
if (err) {
printk(KERN_ERR "%s: Error %d writing packet to BAP\n",