| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 02 Sep 2010 15:36:40 -0700 From: Daniel Walker <dwalker@...eaurora.org> To: Russell King - ARM Linux <linux@....linux.org.uk> Cc: Jeff Ohlstein <johlstei@...eaurora.org>, linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, David Brown <davidb@...eaurora.org>, Bryan Huntsman <bryanh@...eaurora.org>, Gregory Bean <gbean@...eaurora.org>, Stepan Moskovchenko <stepanm@...eaurora.org>, Abhijeet Dharmapurikar <adharmap@...eaurora.org> Subject: Re: [PATCH 14/24] msm: add hotplug stub functions On Thu, 2010-09-02 at 18:12 +0100, Russell King - ARM Linux wrote: > On Thu, Sep 02, 2010 at 09:49:37AM -0700, Daniel Walker wrote: > > On Thu, 2010-09-02 at 12:11 +0100, Russell King - ARM Linux wrote: > > > On Tue, Aug 24, 2010 at 09:57:43PM -0700, Jeff Ohlstein wrote: > > > > From: Daniel Walker <dwalker@...eaurora.org> > > > > > > > > We don't actually do anything for hotplug yet. This just lets > > > > everything compile, even when hotplug is enabled. > > > > > > And the point of that is? If you're not supporting hotplug CPU yet, then > > > don't allow it to be enabled. > > > > How do we do that? I didn't see a easy way to prevent it. > > > config HOTPLUG_CPU > bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" > depends on SMP && HOTPLUG && EXPERIMENTAL > + depends on !ARCH_MSM > -- If no others use it .. We can do this to fix them all. What do you think? diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index d4d9f55..6d8cf39 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1163,9 +1163,12 @@ config NR_CPUS depends on SMP default "4" +config HAS_HOTPLUG_CPU + bool + config HOTPLUG_CPU bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" - depends on SMP && HOTPLUG && EXPERIMENTAL + depends on SMP && HOTPLUG && EXPERIMENTAL && HAS_HOTPLUG_CPU help Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig index b4575ae..8b5c339 100644 --- a/arch/arm/mach-realview/Kconfig +++ b/arch/arm/mach-realview/Kconfig @@ -11,6 +11,7 @@ config REALVIEW_EB_A9MP bool "Support Multicore Cortex-A9" depends on MACH_REALVIEW_EB select CPU_V7 + select HAS_HOTPLUG_CPU help Enable support for the Cortex-A9MPCore tile on the Realview platform. @@ -19,6 +20,7 @@ config REALVIEW_EB_ARM11MP depends on MACH_REALVIEW_EB select CPU_V6 select ARCH_HAS_BARRIERS if SMP + select HAS_HOTPLUG_CPU help Enable support for the ARM11MPCore tile on the Realview platform. @@ -37,6 +39,7 @@ config MACH_REALVIEW_PB11MP select ARM_GIC select HAVE_PATA_PLATFORM select ARCH_HAS_BARRIERS if SMP + select HAS_HOTPLUG_CPU help Include support for the ARM(R) RealView MPCore Platform Baseboard. PB11MPCore is a platform with an on-board ARM11MPCore and has @@ -74,6 +77,7 @@ config MACH_REALVIEW_PBX select HAVE_PATA_PLATFORM select ARCH_SPARSEMEM_ENABLE if CPU_V7 && !REALVIEW_HIGH_PHYS_OFFSET select ZONE_DMA if SPARSEMEM + select HAS_HOTPLUG_CPU help Include support for the ARM(R) RealView PBX platform. -- Sent by a consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists