ARM: kvm: implement replacement for ld's LOG2CEIL()

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Commit 06f75a1f62 ("ARM, arm64: kvm: get rid of the bounce
page") uses ld's builtin function LOG2CEIL() to align the
KVM init code to a log2 upper bound of its size. However,
this function turns out to be a fairly recent addition to
binutils, which breaks the build for older toolchains.

So instead, implement a replacement LOG2_ROUNDUP() using
the C preprocessor.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Ard Biesheuvel 2015-03-23 10:52:57 +00:00 • committed by Will Deacon

parent 06f75a1f62

commit e60a1fec44

1 changed files with 22 additions and 2 deletions

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arch/arm/kernel/vmlinux.lds.S

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