iwlwifi: allow to switch to HT40 if not associated

My previous patch
34a5b4b6af iwlwifi: do not re-configure
HT40 after associated

Fix the case of HT40 after association on specified AP, but it break the
association for some APs and cause not able to establish connection.
We need to address HT40 before and after addociation.

CC: stable@vger.kernel.org #3.0+
Reported-by: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Tested-by: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2011-12-14 08:22:36 -08:00 committed by John W. Linville
parent 81670a4918
commit 78feb35b81

View file

@ -606,8 +606,8 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
if (ctx->ht.enabled) {
/* if HT40 is used, it should not change
* after associated except channel switch */
if (iwl_is_associated_ctx(ctx) &&
!ctx->ht.is_40mhz)
if (!ctx->ht.is_40mhz ||
!iwl_is_associated_ctx(ctx))
iwlagn_config_ht40(conf, ctx);
} else
ctx->ht.is_40mhz = false;