linux-kernel - [PATCH 3.14 023/228] iwlwifi: mvm: avoid searching unnecessary columns

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Date:	Wed,  4 Jun 2014 16:20:52 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Eyal Shapira <eyalx.shapira@...el.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Subject: [PATCH 3.14 023/228] iwlwifi: mvm: avoid searching unnecessary columns

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eyal Shapira <eyal@...ery.com>

commit d8fff919ecd7820084675c2814913445e95640ac upstream.

Don't search columns which are unlikely to succeed as previous
columns searched with less aggressive modulation failed.

Signed-off-by: Eyal Shapira <eyalx.shapira@...el.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/iwlwifi/mvm/rs.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -212,8 +212,8 @@ static const struct rs_tx_column rs_tx_c
 			RS_COLUMN_LEGACY_ANT_B,
 			RS_COLUMN_SISO_ANT_A,
 			RS_COLUMN_SISO_ANT_B,
-			RS_COLUMN_MIMO2,
-			RS_COLUMN_MIMO2_SGI,
+			RS_COLUMN_INVALID,
+			RS_COLUMN_INVALID,
 			RS_COLUMN_INVALID,
 			RS_COLUMN_INVALID,
 		},
@@ -225,8 +225,8 @@ static const struct rs_tx_column rs_tx_c
 			RS_COLUMN_LEGACY_ANT_A,
 			RS_COLUMN_SISO_ANT_A,
 			RS_COLUMN_SISO_ANT_B,
-			RS_COLUMN_MIMO2,
-			RS_COLUMN_MIMO2_SGI,
+			RS_COLUMN_INVALID,
+			RS_COLUMN_INVALID,
 			RS_COLUMN_INVALID,
 			RS_COLUMN_INVALID,
 		},
@@ -239,9 +239,9 @@ static const struct rs_tx_column rs_tx_c
 			RS_COLUMN_MIMO2,
 			RS_COLUMN_SISO_ANT_A_SGI,
 			RS_COLUMN_SISO_ANT_B_SGI,
-			RS_COLUMN_MIMO2_SGI,
 			RS_COLUMN_LEGACY_ANT_A,
 			RS_COLUMN_LEGACY_ANT_B,
+			RS_COLUMN_INVALID,
 		},
 		.checks = {
 			rs_siso_allow,
@@ -255,9 +255,9 @@ static const struct rs_tx_column rs_tx_c
 			RS_COLUMN_MIMO2,
 			RS_COLUMN_SISO_ANT_B_SGI,
 			RS_COLUMN_SISO_ANT_A_SGI,
-			RS_COLUMN_MIMO2_SGI,
 			RS_COLUMN_LEGACY_ANT_A,
 			RS_COLUMN_LEGACY_ANT_B,
+			RS_COLUMN_INVALID,
 		},
 		.checks = {
 			rs_siso_allow,


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