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authorTomas Winkler <tomas.winkler@intel.com>2008-10-14 12:32:49 -0700
committerJohn W. Linville <linville@tuxdriver.com>2008-10-31 19:00:31 -0400
commitb88b15dfbddc8837569c6dea49348791357de4aa (patch)
tree968a639c4e592fd48cd16f2969c5e983f7dc898d /drivers/net/wireless
parentiwlwifi: fix TX cmd dma unmapping (diff)
downloadlinux-dev-b88b15dfbddc8837569c6dea49348791357de4aa.tar.xz
linux-dev-b88b15dfbddc8837569c6dea49348791357de4aa.zip
iwlwifi: tx command must run on same tfd as packet
This patch makes clear that tx command is attached to the same tfd as the tx packet Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index c3656c46f55f..6cf4a7c428dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -817,7 +817,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
dma_addr_t phys_addr;
dma_addr_t txcmd_phys;
dma_addr_t scratch_phys;
- u16 len, idx, len_org;
+ u16 len, len_org;
u16 seq_number = 0;
__le16 fc;
u8 hdr_len, unicast;
@@ -904,14 +904,13 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
/* Set up first empty TFD within this queue's circular TFD buffer */
tfd = &txq->tfds[q->write_ptr];
memset(tfd, 0, sizeof(*tfd));
- idx = get_cmd_index(q, q->write_ptr, 0);
/* Set up driver data for this TFD */
memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
txq->txb[q->write_ptr].skb[0] = skb;
/* Set up first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = txq->cmd[idx];
+ out_cmd = txq->cmd[q->write_ptr];
tx_cmd = &out_cmd->cmd.tx;
memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd));