git: 176599b58779 - stable/13 - atomic: Avoid casting the return value of atomic_load_ptr to void *
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Date: Mon, 27 Jan 2025 18:17:44 UTC
The branch stable/13 has been updated by olce:
URL: https://cgit.FreeBSD.org/src/commit/?id=176599b58779b0062b50a5813654eefa5ec78869
commit 176599b58779b0062b50a5813654eefa5ec78869
Author: Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2024-08-28 18:51:06 +0000
Commit: Olivier Certner <olce@FreeBSD.org>
CommitDate: 2025-01-27 18:17:11 +0000
atomic: Avoid casting the return value of atomic_load_ptr to void *
Otherwise a cast is needed to load a uintptr_t value.
Fixes: e1f4d623779d ("rangelocks: remove unneeded cast of the atomic_load_ptr() result")
MFC after: 1 week
(cherry picked from commit c7a7e997d25d0b33769252d002b16839c864c83d)
---
sys/sys/atomic_san.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sys/sys/atomic_san.h b/sys/sys/atomic_san.h
index 22a8faa9e24e..4d503e22dcd2 100644
--- a/sys/sys/atomic_san.h
+++ b/sys/sys/atomic_san.h
@@ -266,7 +266,8 @@ ATOMIC_SAN_THREAD_FENCE(SAN_INTERCEPTOR_PREFIX);
#define atomic_fcmpset_rel_ptr ATOMIC_SAN(fcmpset_rel_ptr)
#define atomic_fetchadd_ptr ATOMIC_SAN(fetchadd_ptr)
#define atomic_load_ptr(x) \
- ((void *)ATOMIC_SAN(load_ptr)(__DECONST(volatile uintptr_t *, (x))))
+ ((__typeof(*x))ATOMIC_SAN(load_ptr)( \
+ __DECONST(volatile uintptr_t *, (x))))
#define atomic_load_acq_ptr ATOMIC_SAN(load_acq_ptr)
#define atomic_load_consume_ptr(x) \
((void *)atomic_load_acq_ptr((volatile uintptr_t *)(x)))