linux-kernel - Re: [PATCH] tee: optee: add invoke

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Message-ID: <20210210093736.0b26f917@gandalf.local.home>
Date:   Wed, 10 Feb 2021 09:37:36 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Jisheng Zhang <Jisheng.Zhang@...aptics.com>
Cc:     Jens Wiklander <jens.wiklander@...aro.org>,
        linux-kernel@...r.kernel.org, op-tee@...ts.trustedfirmware.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] tee: optee: add invoke_fn tracepoints

On Wed, 10 Feb 2021 14:44:09 +0800
Jisheng Zhang <Jisheng.Zhang@...aptics.com> wrote:

> Add tracepoints to retrieve information about the invoke_fn. This would
> help to measure how many invoke_fn are triggered and how long it takes
> to complete one invoke_fn call.
> 
> Signed-off-by: Jisheng Zhang <Jisheng.Zhang@...aptics.com>
> ---
> 
> Since v1:
>  - add BUILD_BUG_ON() macro usage to make sure that the size of what is being
>    copied, is not smaller than the amount being copied. Thank Steve.
>  - move optee_trace.h to keep include headers sorted

>From a tracing point of view:

Reviewed-by: Steven Rostedt (VMware) <rostedt@...dmis.org>

-- Steve