arm64: Don't relocate non-existent initrd

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When booting a kernel without an initrd, the kernel reports that it
moves -1 bytes worth, having gone through the motions with initrd_start
equal to initrd_end:

    Moving initrd from [4080000000-407fffffff] to [9fff49000-9fff48fff]

Prevent this by bailing out early when the initrd size is zero (i.e. we
have no initrd), avoiding the confusing message and other associated
work.

Fixes: 1570f0d7ab ("arm64: support initrd outside kernel linear map")
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Mark Rutland 2015-10-06 18:24:37 +01:00 • committed by Will Deacon

parent abffa6f3b1

commit 4ca3bc86be

1 changed files with 2 additions and 0 deletions

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arch/arm64/kernel/setup.c

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