kernel source trees maintenance

[Li Yang-r58472]

Hi

I am confused about the maintaining mechanism of kernel.org tree and linuxppc tree.  How a patch goes into linuxppc tree? And how patch from linuxppc tree goes into kernel.org tree?  Is there any patch that goes directly into kernel.org tree?  Who are the decision makers of merging a patch for both trees?

Regards,
Leo

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