Re: [PATCH v16 00/23] selftests, powerpc, x86: Memory Protection Keys

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On 1/17/20 4:49 AM, Sandipan Das wrote:
> Memory protection keys enables an application to protect its address
> space from inadvertent access by its own code.
> 
> This feature is now enabled on powerpc and has been available since
> 4.16-rc1. The patches move the selftests to arch neutral directory
> and enhance their test coverage.
> 
> Tested on powerpc64 and x86_64 (Skylake-SP).
I also tested the series.  The 64-bit binary works fine.  But,

This is failing to build the x86 selftests:

make: *** No rule to make target 'protection_keys.c', needed by
'/home/daveh/linux/tools/testing/selftests/x86/protection_keys_32'.  Stop.

I think you just forgot to remove the binary from the x86 Makefile.

Which reminds me: This removes the 32-bit binary.  x86 32-bit binaries
exercise different paths than the 64-bit ones, so we like to have both.
 Although it isn't *essential* it would really be nice to keep the
32-bit binary.



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