From: John W. Linville <linville@tuxdriver.com>
Date: Wed, 26 Jun 2013 15:07:40 +0000 (-0400)
Subject: iw: fix incorrect bit shifting in print_ht_mcs
X-Git-Tag: v3.11~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=012f8bf398a87fed7a528d6579aa330cbc3b64df;p=thirdparty%2Fiw.git

iw: fix incorrect bit shifting in print_ht_mcs

iw-3.10/util.c:569:result_independent_of_operands –
	"mcs[10] >> 8" is 0 regardless of the values of its operands. This occurs as the bitwise first operand of '&'.

This seems more like what was intended...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/util.c b/util.c
index d8b76ee..e3d0c27 100644
--- a/util.c
+++ b/util.c
@@ -574,7 +574,7 @@ void print_ht_mcs(const __u8 *mcs)
 	unsigned int tx_max_num_spatial_streams, max_rx_supp_data_rate;
 	bool tx_mcs_set_defined, tx_mcs_set_equal, tx_unequal_modulation;
 
-	max_rx_supp_data_rate = ((mcs[10] >> 8) & ((mcs[11] & 0x3) << 8));
+	max_rx_supp_data_rate = (mcs[10] & ((mcs[11] & 0x3) << 8));
 	tx_mcs_set_defined = !!(mcs[12] & (1 << 0));
 	tx_mcs_set_equal = !(mcs[12] & (1 << 1));
 	tx_max_num_spatial_streams = ((mcs[12] >> 2) & 3) + 1;