s390/smp: clean up a condition

I can never remember precedence rules.  Let's add some parenthesis so
this code is more clear.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 5c8f7ca..35531fe 100644 (file)
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -887,7 +887,7 @@ void __init smp_fill_possible_mask(void)
 
        sclp_max = max(sclp.mtid, sclp.mtid_cp) + 1;
        sclp_max = min(smp_max_threads, sclp_max);
 
        sclp_max = max(sclp.mtid, sclp.mtid_cp) + 1;
        sclp_max = min(smp_max_threads, sclp_max);

-       sclp_max = sclp.max_cores * sclp_max ?: nr_cpu_ids;
+       sclp_max = (sclp.max_cores * sclp_max) ?: nr_cpu_ids;

        possible = setup_possible_cpus ?: nr_cpu_ids;
        possible = min(possible, sclp_max);
        for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++)
        possible = setup_possible_cpus ?: nr_cpu_ids;
        possible = min(possible, sclp_max);
        for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++)