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authorGeorge Spelvin <linux@horizon.com>2014-05-10 10:32:57 -0400
committerJohn W. Linville <linville@tuxdriver.com>2014-05-16 14:26:52 -0400
commit1836eea209546b870dd83f3f4ef234d6598a560d (patch)
tree6d47ab85b4eb40d414ba74f2972b80096fd764b2 /drivers/net/wireless/ti/wl1251
parentd91a48cbae4cc12f6e8a65372a73ecf46f8f1b7f (diff)
lib/crc7: Shift crc7() output left 1 bit
This eliminates a 1-bit left shift in every single caller, and makes the inner loop of the CRC computation more efficient. Renamed crc7 to crc7_be (big-endian) since the interface changed. Also purged #include <linux/crc7.h> from files that don't use it at all. Signed-off-by: George Spelvin <linux@horizon.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ti/wl1251')
-rw-r--r--drivers/net/wireless/ti/wl1251/acx.c1
-rw-r--r--drivers/net/wireless/ti/wl1251/cmd.c1
-rw-r--r--drivers/net/wireless/ti/wl1251/spi.c3
3 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/wireless/ti/wl1251/acx.c b/drivers/net/wireless/ti/wl1251/acx.c
index 5a4ec56c83d0..5695628757ee 100644
--- a/drivers/net/wireless/ti/wl1251/acx.c
+++ b/drivers/net/wireless/ti/wl1251/acx.c
@@ -2,7 +2,6 @@
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/crc7.h>
#include "wl1251.h"
#include "reg.h"
diff --git a/drivers/net/wireless/ti/wl1251/cmd.c b/drivers/net/wireless/ti/wl1251/cmd.c
index bf1fa18b9786..ede31f048ef9 100644
--- a/drivers/net/wireless/ti/wl1251/cmd.c
+++ b/drivers/net/wireless/ti/wl1251/cmd.c
@@ -2,7 +2,6 @@
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/crc7.h>
#include <linux/etherdevice.h>
#include "wl1251.h"
diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index b06d36d99362..e94b57cd5a22 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -122,8 +122,7 @@ static void wl1251_spi_wake(struct wl1251 *wl)
crc[3] = cmd[6];
crc[4] = cmd[5];
- cmd[4] |= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1;
- cmd[4] |= WSPI_INIT_CMD_END;
+ cmd[4] = crc7_be(0, crc, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
t.tx_buf = cmd;
t.len = WSPI_INIT_CMD_LEN;