From fa93b51c55099660c2583ec918ef27df18fc511a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 15 Feb 2019 13:15:32 +0100 Subject: [PATCH] cpufreq: intel_pstate: Avoid redundant initialization of local vars After commit 1a4fe38add8b ("cpufreq: intel_pstate: Remove max/min fractions to limit performance") the initial value of the pstate local variable in intel_pstate_max_within_limits() and the initial value of the max_pstate local variable in intel_pstate_prepare_request() are both immediately discarded, so initialize both these variables to their target values upfront. No intentional changes of behavior. Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 75a5408e6981..3a4d15a48c1f 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1471,11 +1471,9 @@ static void intel_pstate_set_min_pstate(struct cpudata *cpu) static void intel_pstate_max_within_limits(struct cpudata *cpu) { - int pstate; + int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); update_turbo_state(); - pstate = intel_pstate_get_base_pstate(cpu); - pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); intel_pstate_set_pstate(cpu, pstate); } @@ -1716,11 +1714,9 @@ static inline int32_t get_target_pstate(struct cpudata *cpu) static int intel_pstate_prepare_request(struct cpudata *cpu, int pstate) { - int max_pstate = intel_pstate_get_base_pstate(cpu); - int min_pstate; + int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); + int max_pstate = max(min_pstate, cpu->max_perf_ratio); - min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); - max_pstate = max(min_pstate, cpu->max_perf_ratio); return clamp_t(int, pstate, min_pstate, max_pstate); }