[PATCH v3 06/13] arm64: Handle KCOV __init vs inline mismatches
From: Kees Cook <kees@kernel.org>
Date: 2025-07-17 23:25:20
Also in:
kvmarm, linux-arm-kernel, linux-doc, linux-efi, linux-hardening, linux-kbuild, linux-kselftest, linux-riscv, linux-s390, lkml, llvm, sparclinux
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
When KCOV is enabled all functions get instrumented, unless the __no_sanitize_coverage attribute is used. To prepare for __no_sanitize_coverage being applied to __init functions, we have to handle differences in how GCC's inline optimizations get resolved. For arm64 this requires forcing one function to be inline with __always_inline. Signed-off-by: Kees Cook <kees@kernel.org> --- Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Gavin Shan <redacted> Cc: "Russell King (Oracle)" <redacted> Cc: James Morse <james.morse@arm.com> Cc: Oza Pawandeep <redacted> Cc: Anshuman Khandual <redacted> Cc: <redacted> --- arch/arm64/include/asm/acpi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index a407f9cd549e..c07a58b96329 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h@@ -150,7 +150,7 @@ acpi_set_mailbox_entry(int cpu, struct acpi_madt_generic_interrupt *processor) {} #endif -static inline const char *acpi_get_enable_method(int cpu) +static __always_inline const char *acpi_get_enable_method(int cpu) { if (acpi_psci_present()) return "psci";
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2.34.1