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| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2016-11-11 06:10:07 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-16 09:26:34 +0100 |
| commit | d1cbfd771ce8297fa11e89f315392de6056a2181 (patch) | |
| tree | 3ad9ec4f2acce6888ab96faaf06cc4e0f5fb7a76 /drivers/net/ethernet/intel | |
| parent | Kconfig: Regenerate *.c_shipped files after previous changes (diff) | |
| download | linux-d1cbfd771ce8297fa11e89f315392de6056a2181.tar.xz linux-d1cbfd771ce8297fa11e89f315392de6056a2181.zip | |
ptp_clock: Allow for it to be optional
In order to break the hard dependency between the PTP clock subsystem and
ethernet drivers capable of being clock providers, this patch provides
simple PTP stub functions to allow linkage of those drivers into the
kernel even when the PTP subsystem is configured out. Drivers must be
ready to accept NULL from ptp_clock_register() in that case.
And to make it possible for PTP to be configured out, the select statement
in those driver's Kconfig menu entries is converted to the new "imply"
statement. This way the PTP subsystem may have Kconfig dependencies of
its own, such as POSIX_TIMERS, without having to make those ethernet
drivers unavailable if POSIX timers are cconfigured out. And when support
for POSIX timers is selected again then the default config option for PTP
clock support will automatically be adjusted accordingly.
The pch_gbe driver is a bit special as it relies on extra code in
drivers/ptp/ptp_pch.c. Therefore we let the make process descend into
drivers/ptp/ even if PTP_1588_CLOCK is unselected.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: linux-kbuild@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: Michal Marek <mmarek@suse.com>
Link: http://lkml.kernel.org/r/1478841010-28605-4-git-send-email-nicolas.pitre@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/Kconfig | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index c0e17433f623..1349b45f014d 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -58,7 +58,7 @@ config E1000E tristate "Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support" depends on PCI && (!SPARC32 || BROKEN) select CRC32 - select PTP_1588_CLOCK + imply PTP_1588_CLOCK ---help--- This driver supports the PCI-Express Intel(R) PRO/1000 gigabit ethernet family of adapters. For PCI or PCI-X e1000 adapters, @@ -83,7 +83,7 @@ config E1000E_HWTS config IGB tristate "Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support" depends on PCI - select PTP_1588_CLOCK + imply PTP_1588_CLOCK select I2C select I2C_ALGOBIT ---help--- @@ -156,7 +156,7 @@ config IXGBE tristate "Intel(R) 10GbE PCI Express adapters support" depends on PCI select MDIO - select PTP_1588_CLOCK + imply PTP_1588_CLOCK ---help--- This driver supports Intel(R) 10GbE PCI Express family of adapters. For more information on how to identify your adapter, go @@ -213,7 +213,7 @@ config IXGBEVF config I40E tristate "Intel(R) Ethernet Controller XL710 Family support" - select PTP_1588_CLOCK + imply PTP_1588_CLOCK depends on PCI ---help--- This driver supports Intel(R) Ethernet Controller XL710 Family of @@ -264,7 +264,7 @@ config FM10K tristate "Intel(R) FM10000 Ethernet Switch Host Interface Support" default n depends on PCI_MSI - select PTP_1588_CLOCK + imply PTP_1588_CLOCK ---help--- This driver supports Intel(R) FM10000 Ethernet Switch Host Interface. For more information on how to identify your adapter, |