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Date:   Tue, 10 Oct 2017 04:07:27 -0700
From:   tip-bot for Will Deacon <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     will.deacon@....com, mingo@...nel.org, hpa@...or.com,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        tglx@...utronix.de, torvalds@...ux-foundation.org
Subject: [tip:locking/core] locking/arch: Remove dummy
 arch_{read,spin,write}_lock_flags() implementations

Commit-ID:  a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299
Gitweb:     https://git.kernel.org/tip/a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299
Author:     Will Deacon <will.deacon@....com>
AuthorDate: Tue, 3 Oct 2017 19:25:29 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 10 Oct 2017 11:50:19 +0200

locking/arch: Remove dummy arch_{read,spin,write}_lock_flags() implementations

The arch_{read,spin,write}_lock_flags() macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags() call
local_irq_save(flags) anyway.

Signed-off-by: Will Deacon <will.deacon@....com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: paulmck@...ux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/alpha/include/asm/spinlock.h        | 4 ----
 arch/arc/include/asm/spinlock.h          | 4 ----
 arch/arm/include/asm/spinlock.h          | 5 -----
 arch/arm64/include/asm/spinlock.h        | 5 -----
 arch/blackfin/include/asm/spinlock.h     | 6 ------
 arch/hexagon/include/asm/spinlock.h      | 5 -----
 arch/ia64/include/asm/spinlock.h         | 5 +++--
 arch/m32r/include/asm/spinlock.h         | 4 ----
 arch/metag/include/asm/spinlock.h        | 5 -----
 arch/metag/include/asm/spinlock_lnkget.h | 3 ---
 arch/mips/include/asm/spinlock.h         | 3 ---
 arch/mn10300/include/asm/spinlock.h      | 4 +---
 arch/parisc/include/asm/spinlock.h       | 4 +---
 arch/powerpc/include/asm/spinlock.h      | 4 +---
 arch/s390/include/asm/spinlock.h         | 4 +---
 arch/sh/include/asm/spinlock-cas.h       | 4 ----
 arch/sh/include/asm/spinlock-llsc.h      | 4 ----
 arch/sparc/include/asm/spinlock_32.h     | 4 ----
 arch/sparc/include/asm/spinlock_64.h     | 3 ---
 arch/tile/include/asm/spinlock_32.h      | 6 ------
 arch/tile/include/asm/spinlock_64.h      | 6 ------
 arch/x86/include/asm/spinlock.h          | 3 ---
 arch/xtensa/include/asm/spinlock.h       | 5 -----
 include/asm-generic/qspinlock.h          | 1 -
 include/linux/rwlock.h                   | 9 +++++++++
 include/linux/spinlock.h                 | 4 ++++
 include/linux/spinlock_up.h              | 8 --------
 27 files changed, 20 insertions(+), 102 deletions(-)

diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index 7bff6316..3e2b4a0 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -13,7 +13,6 @@
  * We make no fairness assumptions. They have a cost.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 #define arch_spin_is_locked(x)	((x)->lock != 0)
 
 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
@@ -160,7 +159,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock)
 	lock->lock = 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h
index f85bb58..2ba04a7 100644
--- a/arch/arc/include/asm/spinlock.h
+++ b/arch/arc/include/asm/spinlock.h
@@ -14,7 +14,6 @@
 #include <asm/barrier.h>
 
 #define arch_spin_is_locked(x)	((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__)
-#define arch_spin_lock_flags(lock, flags)	arch_spin_lock(lock)
 
 #ifdef CONFIG_ARC_HAS_LLSC
 
@@ -410,7 +409,4 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 
 #endif
 
-#define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index d40a28f..daa8721 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -52,8 +52,6 @@ static inline void dsb_sev(void)
  * memory.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp;
@@ -270,7 +268,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 	}
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index 1504f2b..aa51a38 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -27,8 +27,6 @@
  * instructions.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned int tmp;
@@ -303,9 +301,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 /* read_can_lock - would read_trylock() succeed? */
 #define arch_read_can_lock(x)		((x)->lock < 0x80000000)
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 /* See include/linux/spinlock.h */
 #define smp_mb__after_spinlock()	smp_mb()
 
diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h
index 3885d12..839d144 100644
--- a/arch/blackfin/include/asm/spinlock.h
+++ b/arch/blackfin/include/asm/spinlock.h
@@ -36,8 +36,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	__raw_spin_lock_asm(&lock->lock);
 }
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	return __raw_spin_trylock_asm(&lock->lock);
@@ -53,8 +51,6 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
 	__raw_read_lock_asm(&rw->lock);
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-
 static inline int arch_read_trylock(arch_rwlock_t *rw)
 {
 	return __raw_read_trylock_asm(&rw->lock);
@@ -70,8 +66,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
 	__raw_write_lock_asm(&rw->lock);
 }
 
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
 	return __raw_write_trylock_asm(&rw->lock);
diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index 9f9414b..4802086 100644
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -167,11 +167,6 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
 /*
  * SMP spinlocks are intended to allow only a single CPU at the lock
  */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 #define arch_spin_is_locked(x) ((x)->lock != 0)
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index ed1e6212..35b3188 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -126,6 +126,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
 {
 	arch_spin_lock(lock);
 }
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 #ifdef ASM_SUPPORTED
 
@@ -153,6 +154,7 @@ arch_read_lock_flags(arch_rwlock_t *lock, unsigned long flags)
 		: "p6", "p7", "r2", "memory");
 }
 
+#define arch_read_lock_flags arch_read_lock_flags
 #define arch_read_lock(lock) arch_read_lock_flags(lock, 0)
 
 #else /* !ASM_SUPPORTED */
@@ -205,6 +207,7 @@ arch_write_lock_flags(arch_rwlock_t *lock, unsigned long flags)
 		: "ar.ccv", "p6", "p7", "r2", "r29", "memory");
 }
 
+#define arch_write_lock_flags arch_write_lock_flags
 #define arch_write_lock(rw) arch_write_lock_flags(rw, 0)
 
 #define arch_write_trylock(rw)							\
@@ -228,8 +231,6 @@ static inline void arch_write_unlock(arch_rwlock_t *x)
 
 #else /* !ASM_SUPPORTED */
 
-#define arch_write_lock_flags(l, flags) arch_write_lock(l)
-
 #define arch_write_lock(l)								\
 ({											\
 	__u64 ia64_val, ia64_set_val = ia64_dep_mi(-1, 0, 31, 1);			\
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index 6809a9b..882203d 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -28,7 +28,6 @@
  */
 
 #define arch_spin_is_locked(x)		(*(volatile int *)(&(x)->slock) <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 /**
  * arch_spin_trylock - Try spin lock and return a result
@@ -305,7 +304,4 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif	/* _ASM_M32R_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h
index b5b4174..80e3e59 100644
--- a/arch/metag/include/asm/spinlock.h
+++ b/arch/metag/include/asm/spinlock.h
@@ -15,9 +15,4 @@
  * locked.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
-#define	arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define	arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h
index d5c334d..5708ac0 100644
--- a/arch/metag/include/asm/spinlock_lnkget.h
+++ b/arch/metag/include/asm/spinlock_lnkget.h
@@ -209,7 +209,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 	return tmp;
 }
 
-#define	arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define	arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_LNKGET_H */
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index 4260d3f..ee81297 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -13,7 +13,4 @@
 #include <asm/qrwlock.h>
 #include <asm/qspinlock.h>
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_SPINLOCK_H */
diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h
index 54f75da..879cd0d 100644
--- a/arch/mn10300/include/asm/spinlock.h
+++ b/arch/mn10300/include/asm/spinlock.h
@@ -84,6 +84,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
 		: "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL)
 		: "memory", "cc");
 }
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 #ifdef __KERNEL__
 
@@ -171,9 +172,6 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags)  arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #define _raw_spin_relax(lock)	cpu_relax()
 #define _raw_read_relax(lock)	cpu_relax()
 #define _raw_write_relax(lock)	cpu_relax()
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 136e1c9..d66d7b1 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -31,6 +31,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *x,
 				cpu_relax();
 	mb();
 }
+#define arch_spin_lock_flags arch_spin_lock_flags
 
 static inline void arch_spin_unlock(arch_spinlock_t *x)
 {
@@ -168,7 +169,4 @@ static __inline__ int arch_write_trylock(arch_rwlock_t *rw)
 	return result;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index d83f4f7..b9ebc30 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -161,6 +161,7 @@ void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
 		local_irq_restore(flags_dis);
 	}
 }
+#define arch_spin_lock_flags arch_spin_lock_flags
 
 static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
@@ -299,9 +300,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 	rw->lock = 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #define arch_spin_relax(lock)	__spin_yield(lock)
 #define arch_read_relax(lock)	__rw_yield(lock)
 #define arch_write_relax(lock)	__rw_yield(lock)
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 4eca60c..9fa855f 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -81,6 +81,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lp,
 	if (!arch_spin_trylock_once(lp))
 		arch_spin_lock_wait_flags(lp, flags);
 }
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 static inline int arch_spin_trylock(arch_spinlock_t *lp)
 {
@@ -114,9 +115,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
 extern int _raw_read_trylock_retry(arch_rwlock_t *lp);
 extern int _raw_write_trylock_retry(arch_rwlock_t *lp);
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 static inline int arch_read_trylock_once(arch_rwlock_t *rw)
 {
 	int old = ACCESS_ONCE(rw->lock);
diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h
index 295993c..270ee4d 100644
--- a/arch/sh/include/asm/spinlock-cas.h
+++ b/arch/sh/include/asm/spinlock-cas.h
@@ -27,7 +27,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new
  */
 
 #define arch_spin_is_locked(x)		((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
@@ -90,7 +89,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SH_SPINLOCK_CAS_H */
diff --git a/arch/sh/include/asm/spinlock-llsc.h b/arch/sh/include/asm/spinlock-llsc.h
index a6f9edd1..715595d 100644
--- a/arch/sh/include/asm/spinlock-llsc.h
+++ b/arch/sh/include/asm/spinlock-llsc.h
@@ -19,7 +19,6 @@
  */
 
 #define arch_spin_is_locked(x)		((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 /*
  * Simple spin lock operations.  There are two variants, one clears IRQ's
@@ -197,7 +196,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return (oldval > (RW_LOCK_BIAS - 1));
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SH_SPINLOCK_LLSC_H */
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 9d9129e..12bf857 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -182,10 +182,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw)
 	res; \
 })
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-#define arch_read_lock_flags(rw, flags)   arch_read_lock(rw)
-#define arch_write_lock_flags(rw, flags)  arch_write_lock(rw)
-
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* __SPARC_SPINLOCK_H */
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 3b67705..99b6e1c 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -13,9 +13,6 @@
 #include <asm/qrwlock.h>
 #include <asm/qspinlock.h>
 
-#define arch_read_lock_flags(p, f) arch_read_lock(p)
-#define arch_write_lock_flags(p, f) arch_write_lock(p)
-
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC64_SPINLOCK_H) */
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index 91d05f2..fb5313d 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -51,9 +51,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lock)
 
 void arch_spin_lock(arch_spinlock_t *lock);
 
-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 int arch_spin_trylock(arch_spinlock_t *lock);
 
 static inline void arch_spin_unlock(arch_spinlock_t *lock)
@@ -109,7 +106,4 @@ void arch_read_unlock(arch_rwlock_t *rwlock);
  */
 void arch_write_unlock(arch_rwlock_t *rwlock);
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_TILE_SPINLOCK_32_H */
diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h
index c802f48b..5b616ef 100644
--- a/arch/tile/include/asm/spinlock_64.h
+++ b/arch/tile/include/asm/spinlock_64.h
@@ -75,9 +75,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 /* Try to get the lock, and return whether we succeeded. */
 int arch_spin_trylock(arch_spinlock_t *lock);
 
-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
@@ -138,7 +135,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_TILE_SPINLOCK_64_H */
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index a558c18..c6a6adf 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -41,7 +41,4 @@
 
 #include <asm/qrwlock.h>
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_X86_SPINLOCK_H */
diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
index d005af5..c6e1290 100644
--- a/arch/xtensa/include/asm/spinlock.h
+++ b/arch/xtensa/include/asm/spinlock.h
@@ -33,8 +33,6 @@
 
 #define arch_spin_is_locked(x) ((x)->slock != 0)
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp;
@@ -198,7 +196,4 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
 			: "memory");
 }
 
-#define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
-
 #endif	/* _XTENSA_SPINLOCK_H */
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 6626077..b37b4ad 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -121,6 +121,5 @@ static __always_inline bool virt_spin_lock(struct qspinlock *lock)
 #define arch_spin_lock(l)		queued_spin_lock(l)
 #define arch_spin_trylock(l)		queued_spin_trylock(l)
 #define arch_spin_unlock(l)		queued_spin_unlock(l)
-#define arch_spin_lock_flags(l, f)	queued_spin_lock(l)
 
 #endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/include/linux/rwlock.h b/include/linux/rwlock.h
index 766c5ca..3dcd617 100644
--- a/include/linux/rwlock.h
+++ b/include/linux/rwlock.h
@@ -38,6 +38,15 @@ do {								\
  extern int do_raw_write_trylock(rwlock_t *lock);
  extern void do_raw_write_unlock(rwlock_t *lock) __releases(lock);
 #else
+
+#ifndef arch_read_lock_flags
+# define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
+#endif
+
+#ifndef arch_write_lock_flags
+# define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
+#endif
+
 # define do_raw_read_lock(rwlock)	do {__acquire(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0)
 # define do_raw_read_lock_flags(lock, flags) \
 		do {__acquire(lock); arch_read_lock_flags(&(lock)->raw_lock, *(flags)); } while (0)
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 1e3e480..4e202b0 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -165,6 +165,10 @@ static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock)
 	arch_spin_lock(&lock->raw_lock);
 }
 
+#ifndef arch_spin_lock_flags
+#define arch_spin_lock_flags(lock, flags)	arch_spin_lock(lock)
+#endif
+
 static inline void
 do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock)
 {
diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h
index 901cf8f..0ac9112 100644
--- a/include/linux/spinlock_up.h
+++ b/include/linux/spinlock_up.h
@@ -32,14 +32,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	barrier();
 }
 
-static inline void
-arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
-{
-	local_irq_save(flags);
-	lock->slock = 0;
-	barrier();
-}
-
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	char oldval = lock->slock;

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