Re: [PATCH v12 1/3] mm, powerpc, x86: define VM_PKEY_BITx bits if CONFIG_ARCH_HAS_PKEYS is enabled

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On Fri, Feb 23, 2018 at 03:11:45PM +0800, kbuild test robot wrote:
> Hi Ram,
> 
> Thank you for the patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.16-rc2 next-20180222]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
>         chmod +x ~/bin/make.cross
...snip..
>         # save the attached .config to linux build tree
>         make.cross ARCH=powerpc 
> 
> Note: the linux-review/Ram-Pai/mm-x86-powerpc-Enhancements-to-Memory-Protection-Keys/20180223-042743 HEAD c5692bca45543c242ffca15c811923e4c548ed19 builds fine.
>       It only hurts bisectibility.

oops, it broke git-bisect on powerpc :-(
The following change will fix it. This should nail it down.

diff --git a/arch/powerpc/include/asm/pkeys.h
b/arch/powerpc/include/asm/pkeys.h
index 0409c80..0b3b669 100644
--- a/arch/powerpc/include/asm/pkeys.h
+++ b/arch/powerpc/include/asm/pkeys.h
@@ -25,6 +25,7 @@
 # define VM_PKEY_BIT1  VM_HIGH_ARCH_1
 # define VM_PKEY_BIT2  VM_HIGH_ARCH_2
 # define VM_PKEY_BIT3  VM_HIGH_ARCH_3
 # define VM_PKEY_BIT4  VM_HIGH_ARCH_4
+#elif !defined(VM_PKEY_BIT4)
+# define VM_PKEY_BIT4  VM_HIGH_ARCH_4
#endif




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