linux-kernel - [PATCH 5/9] x86/entry: __always_inline arch_atomic

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Date:   Wed, 03 Jun 2020 13:40:19 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     tglx@...utronix.de
Cc:     x86@...nel.org, elver@...gle.com, paulmck@...nel.org,
        kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org,
        peterz@...radead.org, will@...nel.org, dvyukov@...gle.com,
        glider@...gle.com, andreyknvl@...gle.com
Subject: [PATCH 5/9] x86/entry: __always_inline arch_atomic_* for noinstr

vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit()+0x33: call to arch_atomic_and.constprop.0() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 arch/x86/include/asm/atomic.h |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -205,13 +205,13 @@ static __always_inline bool arch_atomic_
 }
 #define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
 
-static inline int arch_atomic_xchg(atomic_t *v, int new)
+static __always_inline int arch_atomic_xchg(atomic_t *v, int new)
 {
 	return arch_xchg(&v->counter, new);
 }
 #define arch_atomic_xchg arch_atomic_xchg
 
-static inline void arch_atomic_and(int i, atomic_t *v)
+static __always_inline void arch_atomic_and(int i, atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "andl %1,%0"
 			: "+m" (v->counter)
@@ -219,7 +219,7 @@ static inline void arch_atomic_and(int i
 			: "memory");
 }
 
-static inline int arch_atomic_fetch_and(int i, atomic_t *v)
+static __always_inline int arch_atomic_fetch_and(int i, atomic_t *v)
 {
 	int val = arch_atomic_read(v);
 
@@ -229,7 +229,7 @@ static inline int arch_atomic_fetch_and(
 }
 #define arch_atomic_fetch_and arch_atomic_fetch_and
 
-static inline void arch_atomic_or(int i, atomic_t *v)
+static __always_inline void arch_atomic_or(int i, atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "orl %1,%0"
 			: "+m" (v->counter)
@@ -237,7 +237,7 @@ static inline void arch_atomic_or(int i,
 			: "memory");
 }
 
-static inline int arch_atomic_fetch_or(int i, atomic_t *v)
+static __always_inline int arch_atomic_fetch_or(int i, atomic_t *v)
 {
 	int val = arch_atomic_read(v);
 
@@ -247,7 +247,7 @@ static inline int arch_atomic_fetch_or(i
 }
 #define arch_atomic_fetch_or arch_atomic_fetch_or
 
-static inline void arch_atomic_xor(int i, atomic_t *v)
+static __always_inline void arch_atomic_xor(int i, atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "xorl %1,%0"
 			: "+m" (v->counter)
@@ -255,7 +255,7 @@ static inline void arch_atomic_xor(int i
 			: "memory");
 }
 
-static inline int arch_atomic_fetch_xor(int i, atomic_t *v)
+static __always_inline int arch_atomic_fetch_xor(int i, atomic_t *v)
 {
 	int val = arch_atomic_read(v);