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[PATCH 0/2] compat: fix extreme build slowdowns

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Johannes Berg wrote:
> Somehow exporting too many variables completely confuses the kernel's
> Makefiles into trying to calculate the size of every file in a very slow
> shell script ... this is causing EXTREME build slowdowns for me.
> 
> These two patches fix it.

Nice.

Trying to build ath9k..

Before:

real    1m18.689s
user    3m1.382s
sys     0m6.833s

After:

real    0m42.091s
user    1m30.024s
sys     0m5.700s

Sujith
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