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Date: Mon, 4 Jan 2010 16:33:06 -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 53/97] iwl3945: disable power save From: Reinette Chatre <reinette.chatre@...el.com> commit bc45a67079c916a9bd0a95b0b879cc0f259bac6e upstream. we see from http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2125 that power saving does not work well on 3945. Since then power saving has also been connected with association problems where an AP deathenticates a 3945 after it is unable to transmit data to it - this happens when 3945 enters power savings mode. Disable power save support until issues are resolved. 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-3945.c | 2 ++ drivers/net/wireless/iwlwifi/iwl3945-base.c | 8 +++++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index f059b49..9d60f6c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2895,6 +2895,7 @@ static struct iwl_cfg iwl3945_bg_cfg = { .mod_params = &iwl3945_mod_params, .use_isr_legacy = true, .ht_greenfield_support = false, + .broken_powersave = true, }; static struct iwl_cfg iwl3945_abg_cfg = { @@ -2909,6 +2910,7 @@ static struct iwl_cfg iwl3945_abg_cfg = { .mod_params = &iwl3945_mod_params, .use_isr_legacy = true, .ht_greenfield_support = false, + .broken_powersave = true, }; struct pci_device_id iwl3945_hw_card_ids[] = { diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index d00a803..9bf94f0 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3854,9 +3854,11 @@ static int iwl3945_setup_mac(struct iwl_priv *priv) /* Tell mac80211 our characteristics */ hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM | - IEEE80211_HW_SPECTRUM_MGMT | - IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_SUPPORTS_DYNAMIC_PS; + IEEE80211_HW_SPECTRUM_MGMT; + + if (!priv->cfg->broken_powersave) + hw->flags |= IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_SUPPORTS_DYNAMIC_PS; hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | -- 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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