[PATCH 3.2 014/102] Revert "iwlwifi: dvm: don't enable CTS to self"

2014-11-01 Thread Ben Hutchings
3.2.64-rc1 review patch.  If anyone has any objections, please let me know.

--

From: Emmanuel Grumbach 

commit f47f46d7b09cf1d09e4b44b6cc4dd7d68a08028c upstream.

This reverts commit 43d826ca5979927131685cc2092c7ce862cb91cd.

This commit caused packet loss.

Signed-off-by: Emmanuel Grumbach 
[bwh: Backported to 3.2:
 - Adjust filename
 - Condition for RXON_FLG_SELF_CTS_EN in iwlagn_commit_rxon() was different]
Signed-off-by: Ben Hutchings 
---
 drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 13 -
 1 file changed, 13 deletions(-)

--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -440,6 +440,14 @@ int iwlagn_commit_rxon(struct iwl_priv *
/* always get timestamp with Rx frame */
ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
 
+   /*
+* force CTS-to-self frames protection if RTS-CTS is not preferred
+* one aggregation protection method
+*/
+   if (!(priv->cfg->ht_params &&
+ priv->cfg->ht_params->use_rts_for_aggregation))
+   ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+
if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
@@ -872,6 +880,11 @@ void iwlagn_bss_info_changed(struct ieee
else
ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
 
+   if (bss_conf->use_cts_prot)
+   ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+   else
+   ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
+
memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
 
if (vif->type == NL80211_IFTYPE_AP ||

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


[PATCH 3.2 014/102] Revert iwlwifi: dvm: don't enable CTS to self

2014-11-01 Thread Ben Hutchings
3.2.64-rc1 review patch.  If anyone has any objections, please let me know.

--

From: Emmanuel Grumbach emmanuel.grumb...@intel.com

commit f47f46d7b09cf1d09e4b44b6cc4dd7d68a08028c upstream.

This reverts commit 43d826ca5979927131685cc2092c7ce862cb91cd.

This commit caused packet loss.

Signed-off-by: Emmanuel Grumbach emmanuel.grumb...@intel.com
[bwh: Backported to 3.2:
 - Adjust filename
 - Condition for RXON_FLG_SELF_CTS_EN in iwlagn_commit_rxon() was different]
Signed-off-by: Ben Hutchings b...@decadent.org.uk
---
 drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 13 -
 1 file changed, 13 deletions(-)

--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -440,6 +440,14 @@ int iwlagn_commit_rxon(struct iwl_priv *
/* always get timestamp with Rx frame */
ctx-staging.flags |= RXON_FLG_TSF2HOST_MSK;
 
+   /*
+* force CTS-to-self frames protection if RTS-CTS is not preferred
+* one aggregation protection method
+*/
+   if (!(priv-cfg-ht_params 
+ priv-cfg-ht_params-use_rts_for_aggregation))
+   ctx-staging.flags |= RXON_FLG_SELF_CTS_EN;
+
if ((ctx-vif  ctx-vif-bss_conf.use_short_slot) ||
!(ctx-staging.flags  RXON_FLG_BAND_24G_MSK))
ctx-staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
@@ -872,6 +880,11 @@ void iwlagn_bss_info_changed(struct ieee
else
ctx-staging.flags = ~RXON_FLG_TGG_PROTECT_MSK;
 
+   if (bss_conf-use_cts_prot)
+   ctx-staging.flags |= RXON_FLG_SELF_CTS_EN;
+   else
+   ctx-staging.flags = ~RXON_FLG_SELF_CTS_EN;
+
memcpy(ctx-staging.bssid_addr, bss_conf-bssid, ETH_ALEN);
 
if (vif-type == NL80211_IFTYPE_AP ||

--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/