Remove arch_atomic_try_cmpxchg_lock function as it is no longer used
since commit 9f61521c7a28 ("powerpc/qspinlock: powerpc qspinlock
implementation")
Signed-off-by: Nysal Jan K.A <[email protected]>
---
arch/powerpc/include/asm/atomic.h | 29 -----------------------------
1 file changed, 29 deletions(-)
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 486ab7889121..b3a53830446b 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -130,35 +130,6 @@ ATOMIC_OPS(xor, xor, "", K)
#define arch_atomic_xchg_relaxed(v, new) \
arch_xchg_relaxed(&((v)->counter), (new))
-/*
- * Don't want to override the generic atomic_try_cmpxchg_acquire, because
- * we add a lock hint to the lwarx, which may not be wanted for the
- * _acquire case (and is not used by the other _acquire variants so it
- * would be a surprise).
- */
-static __always_inline bool
-arch_atomic_try_cmpxchg_lock(atomic_t *v, int *old, int new)
-{
- int r, o = *old;
- unsigned int eh = IS_ENABLED(CONFIG_PPC64);
-
- __asm__ __volatile__ (
-"1: lwarx %0,0,%2,%[eh] # atomic_try_cmpxchg_acquire \n"
-" cmpw 0,%0,%3 \n"
-" bne- 2f \n"
-" stwcx. %4,0,%2 \n"
-" bne- 1b \n"
-"\t" PPC_ACQUIRE_BARRIER " \n"
-"2: \n"
- : "=&r" (r), "+m" (v->counter)
- : "r" (&v->counter), "r" (o), "r" (new), [eh] "n" (eh)
- : "cr0", "memory");
-
- if (unlikely(r != o))
- *old = r;
- return likely(r == o);
-}
-
/**
* atomic_fetch_add_unless - add unless the number is a given value
* @v: pointer of type atomic_t
--
2.39.2
On Fri, 24 Feb 2023 16:09:40 +0530, Nysal Jan K.A wrote:
> Remove arch_atomic_try_cmpxchg_lock function as it is no longer used
> since commit 9f61521c7a28 ("powerpc/qspinlock: powerpc qspinlock
> implementation")
>
>
Applied to powerpc/next.
[1/1] powerpc/atomics: Remove unused function
https://git.kernel.org/powerpc/c/b0bbe5a2915201e3231e788d716d39dc54493b03
cheers