[Buildroot] How to apply RT kernel patches?

[Yann E. MORIN <yann.morin.1998@free.fr>]

Patrick, All,

On 2017-12-30 08:16 -0500, Patrick Doyle spake thusly:
> How do folks tend to apply the RT kernel patches using buildroot?
> 
> There are patch sets available at
> https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.9/.  I could
> download one of those, unpack it into my buildroot tree, and configure
> that directory as a patch directory for the kernel.  But that is
> problematic from a version control standpoint.  I would end up with
> the whole set of (300+) patches in my source tree that will lead to
> repository bloat.
> 
> I would rather convince the buildroot machinery to download and apply
> the patches automatically as part of the build process.

Have you tried setting:
    BR2_LINUX_KERNEL_PATCH="https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.9/patches-4.9.68-rt60.tar.xz"

As far as I remember, this is is supposed to work, because we do have
explicit support for handling (un)compressed tarballs of patches.

Regards,
Yann E. MORIN.

> Do others do this?
> 
> Do others do something else?
> 
> I think I'll just toss this question out there and see what I can learn.
> 
> Thank you.
> 
> --wpd
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