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iwlwifi: allow a default callback for ASYNC host commands 

This patch provides a default callback for ASYNC host commands instead
of calling to BUG_ON. Most of the callbacks are now just empty functions

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Emmanuel Grumbach 2008-03-25 16:33:40 -07:00 committed by John W. Linville
parent 2470918275
commit 0472f887e0
1 changed files with 28 additions and 2 deletions
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30
drivers/net/wireless/iwlwifi/iwl-hcmd.c
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@ -97,6 +97,31 @@ EXPORT_SYMBOL(get_cmd_string);
#define HOST_COMPLETE_TIMEOUT (HZ / 2) #define HOST_COMPLETE_TIMEOUT (HZ / 2)
static int iwl_generic_cmd_callback(struct iwl_priv *priv,
struct iwl_cmd *cmd, struct sk_buff *skb)
{
struct iwl4965_rx_packet *pkt = NULL;
if (!skb) {
IWL_ERROR("Error: Response NULL in %s.\n",
get_cmd_string(cmd->hdr.cmd));
return 1;
}
pkt = (struct iwl4965_rx_packet *)skb->data;
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERROR("Bad return from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
return 1;
}
IWL_DEBUG_HC("back from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
/* Let iwl_tx_complete free the response skb */
return 1;
}
static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd) static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{ {
int ret; int ret;
@ -106,8 +131,9 @@ static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
/* An asynchronous command can not expect an SKB to be set. */ /* An asynchronous command can not expect an SKB to be set. */
BUG_ON(cmd->meta.flags & CMD_WANT_SKB); BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
/* An asynchronous command MUST have a callback. */ /* Assign a generic callback if one is not provided */
BUG_ON(!cmd->meta.u.callback); if (!cmd->meta.u.callback)
cmd->meta.u.callback = iwl_generic_cmd_callback;
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EBUSY; return -EBUSY;