xref: /OK3568_Linux_fs/kernel/scripts/atomic/fallbacks/sub_and_test (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyuncat <<EOF
2*4882a593Smuzhiyun/**
3*4882a593Smuzhiyun * ${arch}${atomic}_sub_and_test - subtract value from variable and test result
4*4882a593Smuzhiyun * @i: integer value to subtract
5*4882a593Smuzhiyun * @v: pointer of type ${atomic}_t
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Atomically subtracts @i from @v and returns
8*4882a593Smuzhiyun * true if the result is zero, or false for all
9*4882a593Smuzhiyun * other cases.
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyunstatic __always_inline bool
12*4882a593Smuzhiyun${arch}${atomic}_sub_and_test(${int} i, ${atomic}_t *v)
13*4882a593Smuzhiyun{
14*4882a593Smuzhiyun	return ${arch}${atomic}_sub_return(i, v) == 0;
15*4882a593Smuzhiyun}
16*4882a593SmuzhiyunEOF
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