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Date: Mon, 4 Jan 2010 16:33:10 -0800 From: Greg Kroah-Hartman <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...nel.org, stable-review@...nel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Reinette Chatre <reinette.chatre@...el.com>, "John W. Linville" <linville@...driver.com>, Greg Kroah-Hartman <gregkh@...e.de> Subject: [PATCH 57/97] iwlwifi: fix 40MHz operation setting on cards that do not allow it From: Reinette Chatre <reinette.chatre@...el.com> commit 6c3069b1e7e983e176a5f826e2edffefdd404a08 upstream. Some devices have 40MHz operation disabled entirely. Ensure that driver do not enable 40MHz operation if a channel does not allow this. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2135 Signed-off-by: Reinette Chatre <reinette.chatre@...el.com> Signed-off-by: John W. Linville <linville@...driver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- drivers/net/wireless/iwlwifi/iwl-eeprom.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index 622b636..18dc3a4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -711,7 +711,8 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv, ch_info->ht40_min_power = 0; ch_info->ht40_scan_power = eeprom_ch->max_power_avg; ch_info->ht40_flags = eeprom_ch->flags; - ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel; + if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) + ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel; return 0; } -- 1.6.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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