linux-kernel - Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions

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Message-ID: <s5ho8sfd2dk.wl-tiwai@suse.de>
Date:   Sun, 29 Mar 2020 09:52:23 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     George Spelvin <lkml@....org>
Cc:     <linux-kernel@...r.kernel.org>, Hannes Reinecke <hare@...e.de>,
        <linux-scsi@...r.kernel.org>,
        Marek Lindner <mareklindner@...mailbox.ch>,
        Simon Wunderlich <sw@...onwunderlich.de>,
        Antonio Quartulli <a@...table.cc>,
        Sven Eckelmann <sven@...fation.org>,
        <b.a.t.m.a.n@...tynna.open-mesh.org>,
        Johannes Berg <johannes@...solutions.net>,
        <linux-wireless@...r.kernel.org>, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, <alsa-devel@...a-project.org>
Subject: Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions

On Thu, 22 Aug 2019 02:25:10 +0200,
George Spelvin wrote:
> Likewise, "msecs_to_jiffies(seconds * 1000)" is more
> conveniently written "seconds * HZ".

I thought the compiler already optimizes to the constant calculation
for the above case?


thanks,

Takashi