From: "tip-bot2 for Peter Zijlstra" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: core/rseq] cleanup: Always inline everything
Date: Tue, 04 Nov 2025 08:16:41 -0000 [thread overview]
Message-ID: <176224420161.2601451.8638512385313687565.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20251031105435.GU4068168@noisy.programming.kicks-ass.net>
The following commit has been merged into the core/rseq branch of tip:
Commit-ID: 323d93f0432edb5415c79bd35e15e5754a76e486
Gitweb: https://git.kernel.org/tip/323d93f0432edb5415c79bd35e15e5754a76e486
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Fri, 31 Oct 2025 12:02:12 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 04 Nov 2025 08:35:58 +01:00
cleanup: Always inline everything
KASAN bloat caused cleanup helper functions to not get inlined:
vmlinux.o: error: objtool: irqentry_exit+0x323: call to class_user_rw_access_destructor() with UACCESS enabled
Force inline all the cleanup helpers like they already are on normal
builds.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20251031105435.GU4068168@noisy.programming.kicks-ass.net
---
include/linux/cleanup.h | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/include/linux/cleanup.h b/include/linux/cleanup.h
index 2573585..d1806ac 100644
--- a/include/linux/cleanup.h
+++ b/include/linux/cleanup.h
@@ -208,7 +208,7 @@
*/
#define DEFINE_FREE(_name, _type, _free) \
- static inline void __free_##_name(void *p) { _type _T = *(_type *)p; _free; }
+ static __always_inline void __free_##_name(void *p) { _type _T = *(_type *)p; _free; }
#define __free(_name) __cleanup(__free_##_name)
@@ -220,7 +220,7 @@
__val; \
})
-static inline __must_check
+static __always_inline __must_check
const volatile void * __must_check_fn(const volatile void *val)
{ return val; }
@@ -274,16 +274,16 @@ const volatile void * __must_check_fn(const volatile void *val)
#define DEFINE_CLASS(_name, _type, _exit, _init, _init_args...) \
typedef _type class_##_name##_t; \
-static inline void class_##_name##_destructor(_type *p) \
+static __always_inline void class_##_name##_destructor(_type *p) \
{ _type _T = *p; _exit; } \
-static inline _type class_##_name##_constructor(_init_args) \
+static __always_inline _type class_##_name##_constructor(_init_args) \
{ _type t = _init; return t; }
#define EXTEND_CLASS(_name, ext, _init, _init_args...) \
typedef class_##_name##_t class_##_name##ext##_t; \
-static inline void class_##_name##ext##_destructor(class_##_name##_t *p)\
+static __always_inline void class_##_name##ext##_destructor(class_##_name##_t *p) \
{ class_##_name##_destructor(p); } \
-static inline class_##_name##_t class_##_name##ext##_constructor(_init_args) \
+static __always_inline class_##_name##_t class_##_name##ext##_constructor(_init_args) \
{ class_##_name##_t t = _init; return t; }
#define CLASS(_name, var) \
@@ -347,7 +347,7 @@ static __maybe_unused const bool class_##_name##_is_conditional = _is_cond
})
#define __DEFINE_GUARD_LOCK_PTR(_name, _exp) \
- static inline void *class_##_name##_lock_ptr(class_##_name##_t *_T) \
+ static __always_inline void *class_##_name##_lock_ptr(class_##_name##_t *_T) \
{ \
void *_ptr = (void *)(__force unsigned long)*(_exp); \
if (IS_ERR(_ptr)) { \
@@ -355,7 +355,7 @@ static __maybe_unused const bool class_##_name##_is_conditional = _is_cond
} \
return _ptr; \
} \
- static inline int class_##_name##_lock_err(class_##_name##_t *_T) \
+ static __always_inline int class_##_name##_lock_err(class_##_name##_t *_T) \
{ \
long _rc = (__force unsigned long)*(_exp); \
if (!_rc) { \
@@ -384,9 +384,9 @@ static __maybe_unused const bool class_##_name##_is_conditional = _is_cond
EXTEND_CLASS(_name, _ext, \
({ void *_t = _T; int _RET = (_lock); if (_T && !(_cond)) _t = ERR_PTR(_RET); _t; }), \
class_##_name##_t _T) \
- static inline void * class_##_name##_ext##_lock_ptr(class_##_name##_t *_T) \
+ static __always_inline void * class_##_name##_ext##_lock_ptr(class_##_name##_t *_T) \
{ return class_##_name##_lock_ptr(_T); } \
- static inline int class_##_name##_ext##_lock_err(class_##_name##_t *_T) \
+ static __always_inline int class_##_name##_ext##_lock_err(class_##_name##_t *_T) \
{ return class_##_name##_lock_err(_T); }
/*
@@ -466,7 +466,7 @@ typedef struct { \
__VA_ARGS__; \
} class_##_name##_t; \
\
-static inline void class_##_name##_destructor(class_##_name##_t *_T) \
+static __always_inline void class_##_name##_destructor(class_##_name##_t *_T) \
{ \
if (!__GUARD_IS_ERR(_T->lock)) { _unlock; } \
} \
@@ -474,7 +474,7 @@ static inline void class_##_name##_destructor(class_##_name##_t *_T) \
__DEFINE_GUARD_LOCK_PTR(_name, &_T->lock)
#define __DEFINE_LOCK_GUARD_1(_name, _type, _lock) \
-static inline class_##_name##_t class_##_name##_constructor(_type *l) \
+static __always_inline class_##_name##_t class_##_name##_constructor(_type *l) \
{ \
class_##_name##_t _t = { .lock = l }, *_T = &_t; \
_lock; \
@@ -482,7 +482,7 @@ static inline class_##_name##_t class_##_name##_constructor(_type *l) \
}
#define __DEFINE_LOCK_GUARD_0(_name, _lock) \
-static inline class_##_name##_t class_##_name##_constructor(void) \
+static __always_inline class_##_name##_t class_##_name##_constructor(void) \
{ \
class_##_name##_t _t = { .lock = (void*)1 }, \
*_T __maybe_unused = &_t; \
@@ -508,9 +508,9 @@ __DEFINE_LOCK_GUARD_0(_name, _lock)
if (_T->lock && !(_cond)) _T->lock = ERR_PTR(_RET);\
_t; }), \
typeof_member(class_##_name##_t, lock) l) \
- static inline void * class_##_name##_ext##_lock_ptr(class_##_name##_t *_T) \
+ static __always_inline void * class_##_name##_ext##_lock_ptr(class_##_name##_t *_T) \
{ return class_##_name##_lock_ptr(_T); } \
- static inline int class_##_name##_ext##_lock_err(class_##_name##_t *_T) \
+ static __always_inline int class_##_name##_ext##_lock_err(class_##_name##_t *_T) \
{ return class_##_name##_lock_err(_T); }
#define DEFINE_LOCK_GUARD_1_COND_3(_name, _ext, _lock) \
prev parent reply other threads:[~2025-11-04 8:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-31 7:23 [tip:core/rseq 39/42] vmlinux.o: error: objtool: irqentry_exit+0x323: call to class_user_rw_access_destructor() with UACCESS enabled kernel test robot
2025-10-31 10:46 ` Peter Zijlstra
2025-10-31 10:54 ` Peter Zijlstra
2025-11-03 14:47 ` [tip: core/rseq] x86/ptrace: Always inline trivial accessors tip-bot2 for Peter Zijlstra
2025-11-03 14:47 ` [tip: core/rseq] cleanup: Always inline everything tip-bot2 for Peter Zijlstra
2025-11-04 8:16 ` [tip: core/rseq] x86/ptrace: Always inline trivial accessors tip-bot2 for Peter Zijlstra
2025-11-04 8:16 ` tip-bot2 for Peter Zijlstra [this message]
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