linux-kernel - [PATCH 1/1] perf: hisi: Make irq shared

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Message-ID: <20220516130500.39586-1-chenjun102@huawei.com>
Date:   Mon, 16 May 2022 13:05:00 +0000
From:   Chen Jun <chenjun102@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <zhangshaokun@...ilicon.com>, <will@...nel.org>,
        <mark.rutland@....com>
CC:     <xuqiang36@...wei.com>
Subject: [PATCH 1/1] perf: hisi: Make irq shared

On some platforms, there are some error:
genirq: Flags mismatch irq 23. 00010804 (xxx) vs. 00010804 (xxx)

The reason is that there are more than one pmu nodes using the same
irq number.

Add IROF_SHARED when devm_request_irq.

Signed-off-by: Chen Jun <chenjun102@...wei.com>
---
 drivers/perf/hisilicon/hisi_uncore_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
index 358e4e284a62..bcbd3b467f34 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
@@ -168,7 +168,7 @@ int hisi_uncore_pmu_init_irq(struct hisi_pmu *hisi_pmu,
 		return irq;
 
 	ret = devm_request_irq(&pdev->dev, irq, hisi_uncore_pmu_isr,
-			       IRQF_NOBALANCING | IRQF_NO_THREAD,
+			       IRQF_NOBALANCING | IRQF_NO_THREAD | IRQF_SHARED,
 			       dev_name(&pdev->dev), hisi_pmu);
 	if (ret < 0) {
 		dev_err(&pdev->dev,
-- 
2.17.1