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From: Takashi Iwai <tiwai@suse.de>
To: George Spelvin <lkml@sdf.org>
Cc: alsa-devel@alsa-project.org,
	Marek Lindner <mareklindner@neomailbox.ch>,
	linux-scsi@vger.kernel.org,
	Simon Wunderlich <sw@simonwunderlich.de>,
	linux-wireless@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
	Antonio Quartulli <a@unstable.cc>,
	linux-kernel@vger.kernel.org, b.a.t.m.a.n@diktynna.open-mesh.org,
	Hannes Reinecke <hare@suse.de>,
	Johannes Berg <johannes@sipsolutions.net>,
	Sven Eckelmann <sven@narfation.org>
Subject: Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions
Date: Sun, 29 Mar 2020 09:52:23 +0200	[thread overview]
Message-ID: <s5ho8sfd2dk.wl-tiwai@suse.de> (raw)
In-Reply-To: <202003281643.02SGhBrh000992@sdf.org>

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

WARNING: multiple messages have this Message-ID (diff)
From: Takashi Iwai <tiwai@suse.de>
To: George Spelvin <lkml@sdf.org>
Cc: <linux-kernel@vger.kernel.org>, Hannes Reinecke <hare@suse.de>,
	<linux-scsi@vger.kernel.org>,
	Marek Lindner <mareklindner@neomailbox.ch>,
	Simon Wunderlich <sw@simonwunderlich.de>,
	Antonio Quartulli <a@unstable.cc>,
	Sven Eckelmann <sven@narfation.org>,
	<b.a.t.m.a.n@diktynna.open-mesh.org>,
	Johannes Berg <johannes@sipsolutions.net>,
	<linux-wireless@vger.kernel.org>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	<alsa-devel@alsa-project.org>
Subject: Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions
Date: Sun, 29 Mar 2020 09:52:23 +0200	[thread overview]
Message-ID: <s5ho8sfd2dk.wl-tiwai@suse.de> (raw)
In-Reply-To: <202003281643.02SGhBrh000992@sdf.org>

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

  reply	other threads:[~2020-03-29  7:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-22  0:25 [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions George Spelvin
2019-08-22  0:25 ` George Spelvin
2020-03-29  7:52 ` Takashi Iwai [this message]
2020-03-29  7:52   ` Takashi Iwai
2020-03-29 12:11   ` George Spelvin
2020-03-29 12:11     ` George Spelvin
2020-03-29 17:13     ` Takashi Iwai
2020-03-29 17:13       ` Takashi Iwai
2020-03-29 17:50       ` George Spelvin
2020-03-29 17:50         ` George Spelvin
2020-03-29 18:16         ` James Bottomley
2020-03-29 18:16           ` James Bottomley
2020-03-29 21:18           ` George Spelvin
2020-03-29 21:18             ` George Spelvin
2020-03-30  6:27           ` Takashi Iwai
2020-03-30  6:27             ` Takashi Iwai
2020-03-30  6:51             ` George Spelvin
2020-03-30  6:51               ` George Spelvin
2020-03-30  7:29               ` Takashi Iwai
2020-03-30  7:29                 ` Takashi Iwai

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