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Subject[PATCH 2/6] cpufreq: Replace few CPUFREQ_CONST_LOOPS checks with has_target()
Date
CPUFREQ_CONST_LOOPS was introduced in a very old commit from pre-2.6
kernel release commit 6a4a93f9c0d5 ("[CPUFREQ] Fix 'out of sync'
issue").

Probably the initial idea was to just avoid these checks for set_policy
type drivers and then things got changed over the years. And it is very
unclear why these checks are there at all.

Replace the CPUFREQ_CONST_LOOPS check with has_target(), which makes
more sense now.

Also remove () around freq comparison statement as they aren't required
and checkpatch also warns for them.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/cpufreq/cpufreq.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 54befd775bd6..e59194c2c613 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -359,12 +359,10 @@ static void cpufreq_notify_transition(struct cpufreq_policy *policy,
* which is not equal to what the cpufreq core thinks is
* "old frequency".
*/
- if (!(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) {
- if (policy->cur && (policy->cur != freqs->old)) {
- pr_debug("Warning: CPU frequency is %u, cpufreq assumed %u kHz\n",
- freqs->old, policy->cur);
- freqs->old = policy->cur;
- }
+ if (has_target() && policy->cur && policy->cur != freqs->old) {
+ pr_debug("Warning: CPU frequency is %u, cpufreq assumed %u kHz\n",
+ freqs->old, policy->cur);
+ freqs->old = policy->cur;
}

srcu_notifier_call_chain(&cpufreq_transition_notifier_list,
@@ -1618,8 +1616,7 @@ static unsigned int __cpufreq_get(struct cpufreq_policy *policy)
if (policy->fast_switch_enabled)
return ret_freq;

- if (ret_freq && policy->cur &&
- !(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) {
+ if (has_target() && ret_freq && policy->cur) {
/* verify no discrepancy between actual and
saved value exists */
if (unlikely(ret_freq != policy->cur)) {
--
2.21.0.rc0.269.g1a574e7a288b
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