[S390] cputime: add sparse checking and cleanup

Make cputime_t and cputime64_t nocast to enable sparse checking to
detect incorrect use of cputime. Drop the cputime macros for simple
scalar operations. The conversion macros are still needed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index c5072a91e848..2a508edd768b 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -61,9 +61,8 @@ static int cpufreq_stats_update(unsigned int cpu)
         spin_lock(&cpufreq_stats_lock);
         stat = per_cpu(cpufreq_stats_table, cpu);
         if (stat->time_in_state)
-                stat->time_in_state[stat->last_index] =
-                        cputime64_add(stat->time_in_state[stat->last_index],
-                                      cputime_sub(cur_time, stat->last_time));
+                stat->time_in_state[stat->last_index] +=
+                        cur_time - stat->last_time;
         stat->last_time = cur_time;
         spin_unlock(&cpufreq_stats_lock);
         return 0;