Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
refcount: Remove unused __signed_wrap function annotations
With CONFIG_UBSAN_INTEGER_WRAP being replaced by Overflow Behavior
Types, remove the __signed_wrap function annotation as it is already
unused, and any future work here will use OBT annotations instead.
Link: https://patch.msgid.link/20260331163725.2765789-1-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
+6
-13
+1
-8
include/linux/compiler_types.h
+1
-8
include/linux/compiler_types.h
···
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#define at_least
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#endif
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-
/* Do not trap wrapping arithmetic within an annotated function. */
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-
#ifdef CONFIG_UBSAN_INTEGER_WRAP
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-
# define __signed_wrap __attribute__((no_sanitize("signed-integer-overflow")))
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-
#else
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-
# define __signed_wrap
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-
#endif
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-
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/* Section for code which can't be instrumented at all */
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#define __noinstr_section(section) \
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noinline notrace __attribute((__section__(section))) \
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__no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage \
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-
__no_sanitize_memory __signed_wrap
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+
__no_sanitize_memory
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#define noinstr __noinstr_section(".noinstr.text")
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+5
-5
include/linux/refcount.h
+5
-5
include/linux/refcount.h
···
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return atomic_read(&r->refs);
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}
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-
static inline __must_check __signed_wrap
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+
static inline __must_check
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bool __refcount_add_not_zero(int i, refcount_t *r, int *oldp)
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{
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int old = refcount_read(r);
···
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return __refcount_add_not_zero(i, r, NULL);
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}
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-
static inline __must_check __signed_wrap
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+
static inline __must_check
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bool __refcount_add_not_zero_limited_acquire(int i, refcount_t *r, int *oldp,
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int limit)
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{
···
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return __refcount_add_not_zero_limited_acquire(1, r, oldp, limit);
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}
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-
static inline __must_check __signed_wrap
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+
static inline __must_check
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bool __refcount_add_not_zero_acquire(int i, refcount_t *r, int *oldp)
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{
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return __refcount_add_not_zero_limited_acquire(i, r, oldp, INT_MAX);
···
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return __refcount_add_not_zero_acquire(i, r, NULL);
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}
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-
static inline __signed_wrap
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+
static inline
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void __refcount_add(int i, refcount_t *r, int *oldp)
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{
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int old = atomic_fetch_add_relaxed(i, &r->refs);
···
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__refcount_inc(r, NULL);
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}
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-
static inline __must_check __signed_wrap
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+
static inline __must_check
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bool __refcount_sub_and_test(int i, refcount_t *r, int *oldp)
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{
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int old = atomic_fetch_sub_release(i, &r->refs);