Commit ed26aacfb5f71eecb20a ("mips: Add udelay lpj numbers adjustment")
has backported to 4.4~5.4, but the "struct cpufreq_freqs" (and also the
cpufreq notifier machanism) of 4.4~4.19 are different from the upstream
kernel. These differences cause build errors, and this patch can fix the
build.
Cc: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
Cc: Stable <stable@xxxxxxxxxxxxxxx> # 4.4/4.9/4.14/4.19
Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
---
arch/mips/kernel/time.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index b7f7e08..b15ee12 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -40,10 +40,8 @@ static unsigned long glb_lpj_ref_freq;
static int cpufreq_callback(struct notifier_block *nb,
unsigned long val, void *data)
{
- struct cpufreq_freqs *freq = data;
- struct cpumask *cpus = freq->policy->cpus;
- unsigned long lpj;
int cpu;
+ struct cpufreq_freqs *freq = data;
/*
* Skip lpj numbers adjustment if the CPU-freq transition is safe for
@@ -64,6 +62,7 @@ static int cpufreq_callback(struct notifier_block *nb,
}
}
+ cpu = freq->cpu;
/*
* Adjust global lpj variable and per-CPU udelay_val number in
* accordance with the new CPU frequency.
@@ -74,12 +73,8 @@ static int cpufreq_callback(struct notifier_block *nb,
glb_lpj_ref_freq,
freq->new);
- for_each_cpu(cpu, cpus) {
- lpj = cpufreq_scale(per_cpu(pcp_lpj_ref, cpu),
- per_cpu(pcp_lpj_ref_freq, cpu),
- freq->new);
- cpu_data[cpu].udelay_val = (unsigned int)lpj;
- }
+ cpu_data[cpu].udelay_val = cpufreq_scale(per_cpu(pcp_lpj_ref, cpu),
+ per_cpu(pcp_lpj_ref_freq, cpu), freq->new);
}
return NOTIFY_OK;
--
2.7.0
