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v5.4
 1cat << EOF
 2/**
 3 * ${atomic}_add_unless - add unless the number is already a given value
 4 * @v: pointer of type ${atomic}_t
 5 * @a: the amount to add to v...
 6 * @u: ...unless v is equal to u.
 7 *
 8 * Atomically adds @a to @v, if @v was not already @u.
 9 * Returns true if the addition was done.
10 */
11static inline bool
12${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
13{
14	return ${atomic}_fetch_add_unless(v, a, u) != u;
15}
16EOF
v6.2
 1cat << EOF
 2/**
 3 * arch_${atomic}_add_unless - add unless the number is already a given value
 4 * @v: pointer of type ${atomic}_t
 5 * @a: the amount to add to v...
 6 * @u: ...unless v is equal to u.
 7 *
 8 * Atomically adds @a to @v, if @v was not already @u.
 9 * Returns true if the addition was done.
10 */
11static __always_inline bool
12arch_${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
13{
14	return arch_${atomic}_fetch_add_unless(v, a, u) != u;
15}
16EOF