X86FSET_SMAP
if (is_x86_feature(x86_featureset, X86FSET_SMAP) == B_FALSE)
if (is_x86_feature(x86_featureset, X86FSET_SMAP) == B_TRUE)
remove_x86_feature(x86_featureset, X86FSET_SMAP);
if (is_x86_feature(x86_featureset, X86FSET_SMAP) == B_FALSE)
is_x86_feature(x86_featureset, X86FSET_SMAP) == B_TRUE &&
add_x86_feature(featureset, X86FSET_SMAP);