On Thu, Sep 15, 2016 at 11:37 AM, Nicolas Pitre <nicolas.pi...@linaro.org> wrote: > On Thu, 15 Sep 2016, John Stultz wrote: > >> On Thu, Sep 15, 2016 at 11:28 AM, Nicolas Pitre >> <nicolas.pi...@linaro.org> wrote: >> > On Thu, 15 Sep 2016, John Stultz wrote: >> > >> >> > diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig >> >> > index 62824f2fe4..62504a2c9f 100644 >> >> > --- a/kernel/time/Kconfig >> >> > +++ b/kernel/time/Kconfig >> >> > @@ -195,3 +195,21 @@ config HIGH_RES_TIMERS >> >> > >> >> > endmenu >> >> > endif >> >> > + >> >> > +config POSIX_TIMERS >> >> > + bool "Posix Clocks & timers" if EMBEDDED >> >> > + default y >> >> > + help >> >> > + This includes native support for POSIX timers to the kernel. >> >> > + Most embedded systems may have no use for them and therefore >> >> > they >> >> > + can be configured out to reduce the size of the kernel image. >> >> > + >> >> > + When this option is disabled, the following syscalls won't be >> >> > + available: timer_create, timer_gettime: timer_getoverrun, >> >> > + timer_settime, timer_delete, clock_adjtime. Furthermore, the >> >> > + clock_settime, clock_gettime, clock_getres and clock_nanosleep >> >> > + syscalls will be limited to CLOCK_REALTIME and CLOCK_MONOTONIC >> >> > + only. >> >> > + >> >> > + If unsure say y. >> >> > >> >> >> >> One thought.. Should this go under: >> >> Configure standard kernel features (expert users) >> >> rather then a top level item under General Setup ? >> > >> > Hmmm... probably yes. >> > >> > Do you need that I repost the patch? >> >> I can see about moving it.. > > OK. > > Making it conditional on EXPERT rather than EMBEDDED would also be more > inline with the other similar options there.
Ack. Although I'm also seeing some Kconfig noise when I disable it: warning: (SFC && TILE_NET && AMD_XGBE && BFIN_MAC_USE_HWSTAMP && TIGON3 && BNX2X && LIQUIDIO && FEC && E1000E && IGB && IXGBE && I40E && FM10K && MLX4_EN && MLX5_CORE_EN && RAVB && SXGBE_ETH && STMMAC_ETH && TI_CPTS && PTP_1588_CLOCK_GIANFAR && PTP_1588_CLOCK_IXP46X && DP83640_PHY && PTP_1588_CLOCK_PCH) selects PTP_1588_CLOCK which has unmet direct dependencies (NET && POSIX_TIMERS) warning: (SFC && TILE_NET && AMD_XGBE && BFIN_MAC_USE_HWSTAMP && TIGON3 && BNX2X && LIQUIDIO && FEC && E1000E && IGB && IXGBE && I40E && FM10K && MLX4_EN && MLX5_CORE_EN && RAVB && SXGBE_ETH && STMMAC_ETH && TI_CPTS && PTP_1588_CLOCK_GIANFAR && PTP_1588_CLOCK_IXP46X && DP83640_PHY && PTP_1588_CLOCK_PCH) selects PTP_1588_CLOCK which has unmet direct dependencies (NET && POSIX_TIMERS) Not sure if this is just expected given we can't do reverse dependency checking on select... Maybe PTP_1588_CLOCK needs to select POSIX_TIMERS instead of just depend on it? thanks -john
