From: Mao HongBo <maohongbo@phytium.com.cn> Phytium inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ CVE: NA ------------------------------------------------- Fix the issue that interrupts are concentrated in one cpu for Phytium S2500 server. Signed-off-by: Mao HongBo <maohongbo@phytium.com.cn> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- drivers/irqchip/irq-gic-phytium-2500-its.c | 4 +--- drivers/irqchip/irq-gic-phytium-2500.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/irqchip/irq-gic-phytium-2500-its.c b/drivers/irqchip/irq-gic-phytium-2500-its.c index 4d2758fbad22..cb9962c4debb 100644 --- a/drivers/irqchip/irq-gic-phytium-2500-its.c +++ b/drivers/irqchip/irq-gic-phytium-2500-its.c @@ -1675,9 +1675,7 @@ static int its_cpumask_select(struct its_device *its_dev, } cpu = cpumask_any_and(mask_val, cpu_mask); - if ((cpu > cpus) && (cpu < (cpus + skt_cpu_cnt[skt_id]))) { - cpus = cpu; - } + cpus = cpus + cpu % skt_cpu_cnt[skt_id]; if (is_kdump_kernel()) { skt = (cpu_logical_map(cpu) >> 16) & 0xff; diff --git a/drivers/irqchip/irq-gic-phytium-2500.c b/drivers/irqchip/irq-gic-phytium-2500.c index dbdb778b5b4b..a0c622fb2039 100644 --- a/drivers/irqchip/irq-gic-phytium-2500.c +++ b/drivers/irqchip/irq-gic-phytium-2500.c @@ -1345,9 +1345,7 @@ static int gic_cpumask_select(struct irq_data *d, const struct cpumask *mask_val } cpu = cpumask_any_and(mask_val, cpu_online_mask); - if ((cpu > cpus) && (cpu < (cpus + skt_cpu_cnt[irq_skt]))) { - cpus = cpu; - } + cpus = cpus + cpu % skt_cpu_cnt[irq_skt]; if (is_kdump_kernel()) { skt = (cpu_logical_map(cpu) >> 16) & 0xff; -- 2.20.1