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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2013-06-02 19:54:01 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-29 09:47:30 -0700
commit21e0f1b26a6ef640c02f09c4390057ee726de389 (patch)
treecbca394ddd3bae691c7314479cf951aa1bc3b39a /drivers
parent446b977ec00db5f4bfb4187bca300dd38bfe7e7d (diff)
iwlwifi: mvm: fix MCAST in AP mode
commit 9116a3683902583a302ac5dcb283416d504d9bb4 upstream. In multicast, there is no retries nor RTS since there is no specific recipient that can ACK or send CTS. This means that we must not use the rate scale table for multicast frames. This true for any frame that doesn't have a valid ieee80211_sta pointer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/tx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 48c1891e3df..b9ba4e71ea4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -175,7 +175,7 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
* table is controlled by LINK_QUALITY commands
*/
- if (ieee80211_is_data(fc)) {
+ if (ieee80211_is_data(fc) && sta) {
tx_cmd->initial_rate_index = 0;
tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
return;