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| author | Peter Zijlstra <peterz@infradead.org> | 2023-01-12 20:43:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-01-13 11:48:15 +0100 |
| commit | 2b5a0e425e6e319b1978db1e9564f6af4228a567 (patch) | |
| tree | c9926cea6c676d9c0d7945d372df83009713ded8 /include/linux/compiler_types.h | |
| parent | 00717eb8c9557b5fcdd338db6faef532f6991d63 (diff) | |
| download | linux-2b5a0e425e6e319b1978db1e9564f6af4228a567.tar.gz linux-2b5a0e425e6e319b1978db1e9564f6af4228a567.tar.bz2 linux-2b5a0e425e6e319b1978db1e9564f6af4228a567.zip | |
objtool/idle: Validate __cpuidle code as noinstr
Idle code is very like entry code in that RCU isn't available. As
such, add a little validation.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.373461409@infradead.org
Diffstat (limited to 'include/linux/compiler_types.h')
| -rw-r--r-- | include/linux/compiler_types.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 7c1afe0f4129..d7858901f035 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -232,11 +232,15 @@ struct ftrace_likely_data { #endif /* Section for code which can't be instrumented at all */ -#define noinstr \ - noinline notrace __attribute((__section__(".noinstr.text"))) \ +#define __noinstr_section(section) \ + noinline notrace __attribute((__section__(section))) \ __no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage \ __no_sanitize_memory +#define noinstr __noinstr_section(".noinstr.text") + +#define __cpuidle __noinstr_section(".cpuidle.text") + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ |