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SubjectRe: [PATCH 0/29] arm meltdown fix backporting review for lts 4.9
On Tue, Mar 06, 2018 at 09:31:29PM +0000, Mark Brown wrote:
> On Tue, Mar 06, 2018 at 09:25:25AM -0800, Greg KH wrote:
> > On Tue, Mar 06, 2018 at 02:26:34PM +0000, Mark Brown wrote:
> > Really? Like what? Last I looked it's only about 300 or so patches.
> > Something like less than .5% of the normal SoC backport size for any ARM
> > system recently. There were some numbers published a few months ago
> > about the real count, I can dig them up if you are curious.
>
> Really.
>
> The Android tree is making non-trivial modifications adding new features
> in core bits of the kernel like the scheduler - that's got an impact
> which will have follow on validation costs if it's not introduced early
> on in the process.

Ah crap, I forgot all about the scheduler mess. Sorry about that, I've
been focusing on device-specific stuff too much (nothing I much care
lives outside of drivers/...)

So you are right, for some types of devices, the andoid-common tree
isn't the best idea. However, the validation "costs" better be starting
all over based on the intrusiveness of these patches, they are
non-trivial :(

thanks,

greg k-h

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