arm64: alternative: patch alternatives in the vDSO

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Make it possible to use alternatives in the vDSO, so that better
implementations can be used if possible.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220830104833.34636-3-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Joey Gouly 2022-08-30 11:48:32 +01:00 • committed by Catalin Marinas

parent b3adc3844e

commit 4e3bca8f7c

4 changed files with 38 additions and 3 deletions

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3

arch/arm64/include/asm/vdso.h

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28

arch/arm64/kernel/alternative.c

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3

arch/arm64/kernel/vdso.c

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7

arch/arm64/kernel/vdso/vdso.lds.S

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