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.

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.

> * move all the SoC specific CPU shutdown code into platform_cpu_die [4/6]

The reboot problem is indeed solved.

P.S. It'd be nice to include a summary of what changed in each affected
patch, as well as in the cover letter.
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