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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-6000.c33
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index c0cfa4e652c9..2067bdff83ab 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -170,7 +170,7 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
* See iwlagn_mac_channel_switch.
*/
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct iwl6000_channel_switch_cmd cmd;
+ struct iwl6000_channel_switch_cmd *cmd;
const struct iwl_channel_info *ch_info;
u32 switch_time_in_usec, ucode_switch_time;
u16 ch;
@@ -180,18 +180,25 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_vif *vif = ctx->vif;
struct iwl_host_cmd hcmd = {
.id = REPLY_CHANNEL_SWITCH,
- .len = { sizeof(cmd), },
+ .len = { sizeof(*cmd), },
.flags = CMD_SYNC,
- .data = { &cmd, },
+ .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
};
+ int err;
- cmd.band = priv->band == IEEE80211_BAND_2GHZ;
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ hcmd.data[0] = cmd;
+
+ cmd->band = priv->band == IEEE80211_BAND_2GHZ;
ch = ch_switch->channel->hw_value;
IWL_DEBUG_11H(priv, "channel switch from %u to %u\n",
ctx->active.channel, ch);
- cmd.channel = cpu_to_le16(ch);
- cmd.rxon_flags = ctx->staging.flags;
- cmd.rxon_filter_flags = ctx->staging.filter_flags;
+ cmd->channel = cpu_to_le16(ch);
+ cmd->rxon_flags = ctx->staging.flags;
+ cmd->rxon_filter_flags = ctx->staging.filter_flags;
switch_count = ch_switch->count;
tsf_low = ch_switch->timestamp & 0x0ffffffff;
/*
@@ -207,30 +214,32 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
switch_count = 0;
}
if (switch_count <= 1)
- cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
+ cmd->switch_time = cpu_to_le32(priv->ucode_beacon_time);
else {
switch_time_in_usec =
vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
ucode_switch_time = iwl_usecs_to_beacons(priv,
switch_time_in_usec,
beacon_interval);
- cmd.switch_time = iwl_add_beacon_time(priv,
+ cmd->switch_time = iwl_add_beacon_time(priv,
priv->ucode_beacon_time,
ucode_switch_time,
beacon_interval);
}
IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
- cmd.switch_time);
+ cmd->switch_time);
ch_info = iwl_get_channel_info(priv, priv->band, ch);
if (ch_info)
- cmd.expect_beacon = is_channel_radar(ch_info);
+ cmd->expect_beacon = is_channel_radar(ch_info);
else {
IWL_ERR(priv, "invalid channel switch from %u to %u\n",
ctx->active.channel, ch);
return -EFAULT;
}
- return iwl_dvm_send_cmd(priv, &hcmd);
+ err = iwl_dvm_send_cmd(priv, &hcmd);
+ kfree(cmd);
+ return err;
}
static struct iwl_lib_ops iwl6000_lib = {