taskset: (1ull < 65) like ops are not good, avoid that

diff --git a/miscutils/taskset.c b/miscutils/taskset.c
index 4815b6a76e274f20d43b19e9b9bcbe7790c94ba2..708abd9f275ac29c9d5fd30e1eb398683d4c8935 100644 (file)
--- a/miscutils/taskset.c
+++ b/miscutils/taskset.c
@@ -93,8 +93,10 @@ int taskset_main(int argc ATTRIBUTE_UNUSED, char **argv)
                unsigned i;
                /* Do not allow zero mask: */
                unsigned long long m = xstrtoull_range(aff, 0, 1, ULLONG_MAX);
+               enum { CNT_BIT = CPU_SETSIZE < sizeof(m)*8 ? CPU_SETSIZE : sizeof(m)*8 };
+
                CPU_ZERO(&mask);
-               for (i = 0; i < CPU_SETSIZE; i++) {
+               for (i = 0; i < CNT_BIT; i++) {
                        unsigned long long bit = (1ULL << i);
                        if (bit & m)
                                CPU_SET(i, &mask);