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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2008-03-25 16:33:40 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-03-27 16:03:18 -0400 |
| commit | 0472f887e0689fff2dce82c01d40698432965b5a (patch) | |
| tree | f85700dc5f68ac1883aa073b749058f4547ee2d9 | |
| parent | 24709182754625829e499b5d628affa881d1dba0 (diff) | |
| download | linux-3.10-0472f887e0689fff2dce82c01d40698432965b5a.tar.gz linux-3.10-0472f887e0689fff2dce82c01d40698432965b5a.tar.bz2 linux-3.10-0472f887e0689fff2dce82c01d40698432965b5a.zip | |
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>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-hcmd.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c index 559ff739961..51c9949633e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c @@ -97,6 +97,31 @@ EXPORT_SYMBOL(get_cmd_string); #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) { 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. */ BUG_ON(cmd->meta.flags & CMD_WANT_SKB); - /* An asynchronous command MUST have a callback. */ - BUG_ON(!cmd->meta.u.callback); + /* Assign a generic callback if one is not provided */ + if (!cmd->meta.u.callback) + cmd->meta.u.callback = iwl_generic_cmd_callback; if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return -EBUSY; |