xref: /openbmc/linux/scripts/atomic/fallbacks/inc_not_zero (revision ace9bad4df2684f31cbfe8c4ce7a0f5d92b27925)
1*ace9bad4SMark Rutlandcat <<EOF
2*ace9bad4SMark Rutland/**
3*ace9bad4SMark Rutland * ${atomic}_inc_not_zero - increment unless the number is zero
4*ace9bad4SMark Rutland * @v: pointer of type ${atomic}_t
5*ace9bad4SMark Rutland *
6*ace9bad4SMark Rutland * Atomically increments @v by 1, if @v is non-zero.
7*ace9bad4SMark Rutland * Returns true if the increment was done.
8*ace9bad4SMark Rutland */
9*ace9bad4SMark Rutlandstatic inline bool
10*ace9bad4SMark Rutland${atomic}_inc_not_zero(${atomic}_t *v)
11*ace9bad4SMark Rutland{
12*ace9bad4SMark Rutland	return ${atomic}_add_unless(v, 1, 0);
13*ace9bad4SMark Rutland}
14*ace9bad4SMark RutlandEOF
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