arm64: entry-ftrace.S: Update comment to indicate that x18 is live

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The Shadow Call Stack pointer is held in x18, so update the ftrace
entry comment to indicate that it cannot be safely clobbered.

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

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This commit is contained in:

Will Deacon 2020-05-18 14:01:01 +01:00

parent 871e100e43

commit 258c3d628f

1 changed files with 3 additions and 2 deletions

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arch/arm64/kernel/entry-ftrace.S

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