diff options
| author | George Spelvin <linux@horizon.com> | 2014-05-10 10:32:57 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-05-16 14:26:52 -0400 |
| commit | 1836eea209546b870dd83f3f4ef234d6598a560d (patch) | |
| tree | 6d47ab85b4eb40d414ba74f2972b80096fd764b2 /drivers/mmc/host/mmc_spi.c | |
| parent | d91a48cbae4cc12f6e8a65372a73ecf46f8f1b7f (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/mmc/host/mmc_spi.c')
| -rw-r--r-- | drivers/mmc/host/mmc_spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 0a87e5691341..338e2202eaaa 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -472,7 +472,7 @@ mmc_spi_command_send(struct mmc_spi_host *host, *cp++ = (u8)(arg >> 16); *cp++ = (u8)(arg >> 8); *cp++ = (u8)arg; - *cp++ = (crc7(0, &data->status[1], 5) << 1) | 0x01; + *cp++ = crc7_be(0, &data->status[1], 5) | 0x01; /* Then, read up to 13 bytes (while writing all-ones): * - N(CR) (== 1..8) bytes of all-ones |