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qcacmn: Add an API to decrement an atomic variable if it is positive

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Add an API to decrement an atomic variable if its value is positive.

CRs-Fixed: 3408572
Change-Id: I9649f1093850452a38acae6fa48e663a4e6d9c68
This commit is contained in:
Edayilliam Jayadev
2023-02-16 16:14:03 +05:30
committed by Madan Koyyalamudi
parent b3c257785e
commit 98f1131240
2 changed files with 24 additions and 0 deletions
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12
qdf/inc/qdf_atomic.h
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@@ -154,6 +154,18 @@ static inline int32_t qdf_atomic_dec_return(qdf_atomic_t *v)
return __qdf_atomic_dec_return(v);
}
/**
* qdf_atomic_dec_if_positive() - Decrement an atomic variable if its
* value is positive
* @v: A pointer to an opaque atomic variable
*
* Return: The old value of the variable minus 1
*/
static inline int32_t qdf_atomic_dec_if_positive(qdf_atomic_t *v)
{
return __qdf_atomic_dec_if_positive(v);
}
/**
* qdf_atomic_inc_not_zero() - increment if not zero
* @v: A pointer to an opaque atomic variable