arm64: cpufeature: Reduce number of pointer auth CPU caps from 6 to 4

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We can easily avoid defining the two meta-capabilities for the address
and generic keys, so remove them and instead just check both of the
architected and impdef capabilities when determining the level of system
support.

Reviewed-by: Suzuki Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2018-12-12 15:52:02 +00:00

parent fbedc599e9

commit a56005d321

3 changed files with 8 additions and 17 deletions

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8

arch/arm64/include/asm/cpucaps.h

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6

arch/arm64/include/asm/cpufeature.h

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11

arch/arm64/kernel/cpufeature.c

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