linux-kernel - Re: [PATCH v3] coresight: Serialize enabling/disabling a link device.

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Date:   Tue, 13 Aug 2019 17:35:57 -0700
From:   Yabin Cui <yabinc@...gle.com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Yabin Cui <yabinc@...gle.com>
Subject: Re: [PATCH v3] coresight: Serialize enabling/disabling a link device.

> The patch isn't difficult to do but does go deeper in each link
> drivers (ETF, funnel, replicator).  Let me know if you are not
> comfortable with the idea and I will see what I can do on my side.

I am comfortable with the idea. I chose to add lock in coresight_enable_link() just because it
is the smallest change. But a refactor probably is better for maintainance.

Feel free to upload a new patch fixing the problem. I can help to test it.