phy: dp83640: select CONFIG_CRC32

Without crc32, this driver fails to link:

arm-linux-gnueabi-ld: drivers/net/phy/dp83640.o: in function `match':
dp83640.c:(.text+0x476c): undefined reference to `crc32_le'

Fixes: 539e44d26855 ("dp83640: Include hash in timestamp/packet matching")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig
index 476d7c7..d2bf05c 100644 (file)
--- a/drivers/ptp/Kconfig
+++ b/drivers/ptp/Kconfig
@@ -64,6 +64,7 @@ config DP83640_PHY
        depends on NETWORK_PHY_TIMESTAMPING
        depends on PHYLIB
        depends on PTP_1588_CLOCK
+       select CRC32
        help
          Supports the DP83640 PHYTER with IEEE 1588 features.