[PATCH V2 0/6] ARM: tegra: add CPU hotplug support

Joseph Lo josephl at nvidia.com
Thu Aug 16 05:30:11 EDT 2012


Hi Stephen,

On Thu, 2012-08-16 at 00:05 +0800, Stephen Warren wrote:
> On 08/15/2012 03:22 AM, Joseph Lo wrote:
> > This patch set adds CPU hotplug support for Tegra20 and Tegra30 SoCs.
> > 
> > The first 3 patches make the CPU clock and reset control be a module and
> > the abstraction APIs for TegraXX SoCs. And clean up some codes for later
> > usage. Then add CPU hotplug support for Tegra20 and Tegra30.
> > 
> > Verified on Seaboard(Tegra20) and Cardhu(Tegra30)
> > 
> > V2:
> > * add one more patch for enable HOTPLUG_CPU [6/6]
> 
> The build problem when HOTPLUG_CPU is disabled is still present. The
> kernel needs to build with this option disabled.
> 
> Enabling HOTPLUG_CPU in defconfig doesn't force everyone to enable that
> configuration option; not everyone uses tegra_defconfig, people don't
> always update to the latest defconfig, people should be free to disable
> functionality they don't need and still get a buildable & working
> kernel, etc.
> 
Obviously, I didn't get your problem at your first reply. Sorry.

I fixed that and re-checked it again with Tegra20-only, Tegra30-only and
both supported kernel. And checked with "git bisect" as well. It should
be OK now.

Thanks,
Joseph

> Besides, even if defconfig were a legitimate solution to this problem,
> this series still wouldn't work with "git bisect", since the defconfig
> patch comes after the patch that causes the build failure.
> 






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