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author | Mark Rutland <mark.rutland@arm.com> | 2022-11-17 13:09:01 +0100 |
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committer | Will Deacon <will@kernel.org> | 2022-11-18 15:36:47 +0100 |
commit | c8c384d7b397991584de4ed074541a54809cdd52 (patch) | |
tree | 8b1dbba0fe30def2463cd31e7da2e42e203ba96a /arch/arm64/kernel/irq.c | |
parent | Linux 6.1-rc4 (diff) | |
download | linux-c8c384d7b397991584de4ed074541a54809cdd52.tar.xz linux-c8c384d7b397991584de4ed074541a54809cdd52.zip |
arm64: remove current_top_of_stack()
We no longer use current_top_of_stack() on arm64, so it can be removed.
We introduced current_top_of_stack() for STACKLEAK in commit:
0b3e336601b82c6a ("arm64: Add support for STACKLEAK gcc plugin")
... then we figured out the intended semantics were unclear, and
reworked it in commit:
e85094c31ddb794a ("arm64: stackleak: fix current_top_of_stack()")
... then we removed the only user in commit:
0cfa2ccd285d98ad ("stackleak: rework stack high bound handling")
Given that it's no longer used, and it's very easy to misuse, this patch
removes current_top_of_stack(). For the moment, on_thread_stack() is
left where it is as moving it will change some header dependencies.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221117120902.3974163-2-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/irq.c')
0 files changed, 0 insertions, 0 deletions