linux-kernel - Re: [RFC v2 08/11] gpiolib: cdev: Add hardware timestamp clock type

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Message-ID: <CACRpkdaO8ydTEkPU4LT+ibzb_-5VEw9mdvMbu+R9cR6zv9MsDQ@mail.gmail.com>
Date:   Mon, 4 Oct 2021 00:09:57 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Dipen Patel <dipenp@...dia.com>
Cc:     "thierry.reding@...il.com" <thierry.reding@...il.com>,
        Jon Hunter <jonathanh@...dia.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Kent Gibson <warthog618@...il.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [RFC v2 08/11] gpiolib: cdev: Add hardware timestamp clock type

On Fri, Oct 1, 2021 at 1:26 AM Dipen Patel <dipenp@...dia.com> wrote:

> +       if (test_bit(FLAG_EVENT_CLOCK_HARDWARE, &line->desc->flags)) {

I don't know if it's here or a few other places as well we could sneak
in a IS_ENABLED(CONFIG_HTE) to make sure the compiler will
optimize out a bunch of the HTE support code if HTE is not in use?

Just an idea, I guess it's not the most urgent.

Yours,
Linus Walleij