xref: /OK3568_Linux_fs/kernel/scripts/atomic/fallbacks/dec_and_test (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyuncat <<EOF
2*4882a593Smuzhiyun/**
3*4882a593Smuzhiyun * ${arch}${atomic}_dec_and_test - decrement and test
4*4882a593Smuzhiyun * @v: pointer of type ${atomic}_t
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Atomically decrements @v by 1 and
7*4882a593Smuzhiyun * returns true if the result is 0, or false for all other
8*4882a593Smuzhiyun * cases.
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyunstatic __always_inline bool
11*4882a593Smuzhiyun${arch}${atomic}_dec_and_test(${atomic}_t *v)
12*4882a593Smuzhiyun{
13*4882a593Smuzhiyun	return ${arch}${atomic}_dec_return(v) == 0;
14*4882a593Smuzhiyun}
15*4882a593SmuzhiyunEOF
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