linux-kernel - Re: [PATCH drivers/perf: hisi: 2/2] drivers/perf: hisi: fix set wrong filter mode for running events issue

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Message-ID: <7fb893ab-9f82-4dd6-ccf6-2432e9e1e769@huawei.com>
Date:   Wed, 23 Aug 2023 10:33:07 +0800
From:   Jijie Shao <shaojijie@...wei.com>
To:     Will Deacon <will@...nel.org>
CC:     <shaojijie@...wei.com>, <jonathan.cameron@...wei.com>,
        <mark.rutland@....com>, <chenhao418@...wei.com>,
        <shenjian15@...wei.com>, <wangjie125@...wei.com>,
        <liuyonglong@...wei.com>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH drivers/perf: hisi: 2/2] drivers/perf: hisi: fix set wrong
 filter mode for running events issue


on 2023/8/21 20:04, Will Deacon wrote:
>> -	return tc_id != HNS3_PMU_FILTER_ALL_TC;
>> +	return (tc_id != HNS3_PMU_FILTER_ALL_TC) && (!bdf);
>>   }
> Sorry, but I'm struggling to see how this correlates with your example
> in the commit message, which implies that it's the config of 0x3 causing
> the problem rather than the bdf.
>
> Please can you explain the problem in more detail?
>
> Thanks,
>
> Will


We'll send the v2 patch to add more details.

Jijie Shao