[PATCH v2 14/16] kallsyms: Mark the kernel text address checks notrace
flat view
WARM1d
From: Song Liu <song@kernel.org>
Date: 2026-10-23 01:12:10
Also in:
live-patching, lkml
Subsystem:
generic include/asm header files, the rest · Maintainers:
Arnd Bergmann, Linus Torvalds
Commit c0d80ddab899 ("kernel/extable.c: mark core_kernel_text notrace")
made core_kernel_text() notrace, because the MIPS function graph tracer
calls it and tracing it recursed without bound. core_kernel_text()
calls is_kernel_text() and is_kernel_inittext(), and is_kernel_text()
calls __is_kernel_text(). These are plain inline functions, so an
out-of-line copy of any of them is untraced only because inline implies
notrace.
Mark them notrace explicitly. No functional change.
Assisted-by: Claude:claude-opus-5
Signed-off-by: Song Liu <song@kernel.org>
---
include/asm-generic/sections.h | 4 ++--
include/linux/kallsyms.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 0755bc39b0d8..d478ddc02316 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h@@ -193,7 +193,7 @@ static inline bool is_kernel_ro_after_init(unsigned long addr) * * Returns: true if the address is located in .init.text, false otherwise. */ -static inline bool is_kernel_inittext(unsigned long addr) +static inline bool notrace is_kernel_inittext(unsigned long addr) { return addr >= (unsigned long)_sinittext && addr < (unsigned long)_einittext;
@@ -208,7 +208,7 @@ static inline bool is_kernel_inittext(unsigned long addr) * Returns: true if the address is located in .text, false otherwise. * Note: an internal helper, only check the range of _stext to _etext. */ -static inline bool __is_kernel_text(unsigned long addr) +static inline bool notrace __is_kernel_text(unsigned long addr) { return addr >= (unsigned long)_stext && addr < (unsigned long)_etext;
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index d5dd54c53ace..93c830b35aeb 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h@@ -24,7 +24,7 @@ struct cred; struct module; -static inline int is_kernel_text(unsigned long addr) +static inline int notrace is_kernel_text(unsigned long addr) { if (__is_kernel_text(addr)) return 1;
--
2.53.0-Meta