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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-01-30 06:42:37 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-02-08 10:21:39 +0100 |
| commit | ffd81dcfef85a33729f90e4acd2f61a68e56b993 (patch) | |
| tree | 4160debd7778d436e027edf810e438266953dc11 /drivers/cpufreq/freq_table.c | |
| parent | cpufreq: intel_pstate: Enable HWP during system resume on CPU0 (diff) | |
| download | linux-ffd81dcfef85a33729f90e4acd2f61a68e56b993.tar.xz linux-ffd81dcfef85a33729f90e4acd2f61a68e56b993.zip | |
cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
Pointer subtraction is slow and tedious. Therefore, replace all instances
where cpufreq_for_each_{valid_,}entry loops contained such substractions
with an iteration macro providing an index to the frequency_table entry.
Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Link: http://lkml.kernel.org/r/20180120020237.GM13338@ZenIV.linux.org.uk
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/freq_table.c')
| -rw-r--r-- | drivers/cpufreq/freq_table.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index 3bbbf9e6960c..6d007f824ca7 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -143,10 +143,9 @@ int cpufreq_table_index_unsorted(struct cpufreq_policy *policy, break; } - cpufreq_for_each_valid_entry(pos, table) { + cpufreq_for_each_valid_entry_idx(pos, table, i) { freq = pos->frequency; - i = pos - table; if ((freq < policy->min) || (freq > policy->max)) continue; if (freq == target_freq) { @@ -211,15 +210,16 @@ int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy, unsigned int freq) { struct cpufreq_frequency_table *pos, *table = policy->freq_table; + int idx; if (unlikely(!table)) { pr_debug("%s: Unable to find frequency table\n", __func__); return -ENOENT; } - cpufreq_for_each_valid_entry(pos, table) + cpufreq_for_each_valid_entry_idx(pos, table, idx) if (pos->frequency == freq) - return pos - table; + return idx; return -EINVAL; } |