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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/broadcom/Kconfig | |
| 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/broadcom/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/broadcom/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig index bd8c80c0b71c..6a8d74aeb69f 100644 --- a/drivers/net/ethernet/broadcom/Kconfig +++ b/drivers/net/ethernet/broadcom/Kconfig @@ -110,7 +110,7 @@ config TIGON3 depends on PCI select PHYLIB select HWMON - select PTP_1588_CLOCK + imply PTP_1588_CLOCK ---help--- This driver supports Broadcom Tigon3 based gigabit Ethernet cards. @@ -120,7 +120,7 @@ config TIGON3 config BNX2X tristate "Broadcom NetXtremeII 10Gb support" depends on PCI - select PTP_1588_CLOCK + imply PTP_1588_CLOCK select FW_LOADER select ZLIB_INFLATE select LIBCRC32C |