pch_gbe: Fix PTP dependencies.

The config combination:

        CONFIG_PCH_GBE=y
        CONFIG_PCH_PTP=y
        CONFIG_PTP_1588_CLOCK=m

doesn't work, because then you have a built-in kernel
object (the PCH_PTP code) referring to symbols in a
module (PTP_1588_CLOCK).

Fix this like IXGBE, by using "select PTP_1588_CLOCK"
instead of a "depends on".

Reported-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
index bce0164..9730241 100644 (file)
--- a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
@@ -26,7 +26,7 @@ if PCH_GBE
 config PCH_PTP
        bool "PCH PTP clock support"
        default n
-       depends on PTP_1588_CLOCK_PCH
+       select PTP_1588_CLOCK_PCH
        ---help---
          Say Y here if you want to use Precision Time Protocol (PTP) in the
          driver. PTP is a method to precisely synchronize distributed clocks