From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Tejun Heo <tj@kernel.org>, Russell King <linux@arm.linux.org.uk>,
ksummit-discuss@lists.linuxfoundation.org,
Shuah Khan <shuah.kh@samsung.com>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Fix devm_kzalloc, its users, or both
Date: Sat, 01 Aug 2015 14:04:24 +0300 [thread overview]
Message-ID: <1624703.qdGzscHWSc@avalon> (raw)
In-Reply-To: <20150731165346.GA18984@infradead.org>
On Friday 31 July 2015 09:53:46 Christoph Hellwig wrote:
> On Fri, Jul 31, 2015 at 06:34:21PM +0200, Julia Lawall wrote:
> > How is this different from the free happening explicitly in the remove
> > function?
>
> It's not. The real problem is that people don't understand life time
> rules and expect magic interfaces to fix it for them.
Exactly. I see two solutions for that, either making people understand life
time rules, or creating interfaces that really fix it for them. devm_kzalloc()
isn't such an interface (and I'm fine if we believe it shouldn't be), but it
unfortunately gives driver developers the impression that it is supposed to
fix the problem. If we conclude that the problem is between the chair and the
keyboard of driver developers then we'll need to start being more vocal about
it.
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2015-08-01 11:03 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-31 15:14 Laurent Pinchart
2015-07-31 15:56 ` Russell King - ARM Linux
2015-07-31 16:34 ` Julia Lawall
2015-07-31 16:51 ` Dmitry Torokhov
2015-07-31 16:57 ` Julia Lawall
2015-07-31 17:03 ` Dmitry Torokhov
2015-07-31 16:53 ` Christoph Hellwig
2015-07-31 17:02 ` James Bottomley
2015-07-31 17:05 ` Dmitry Torokhov
2015-07-31 17:13 ` James Bottomley
2015-07-31 17:33 ` Dmitry Torokhov
2015-07-31 17:36 ` James Bottomley
2015-07-31 18:28 ` Dmitry Torokhov
2015-07-31 18:40 ` James Bottomley
2015-07-31 19:41 ` Dmitry Torokhov
2015-08-01 10:57 ` Mark Brown
2015-08-02 14:05 ` Russell King - ARM Linux
2015-08-02 14:21 ` Julia Lawall
2015-08-01 11:04 ` Laurent Pinchart [this message]
2015-08-01 11:21 ` Julia Lawall
2015-08-04 12:55 ` Dan Carpenter
2015-08-04 14:01 ` Geert Uytterhoeven
2015-08-04 17:55 ` Dmitry Torokhov
2015-08-04 18:03 ` Julia Lawall
2015-08-04 18:07 ` Dmitry Torokhov
2015-08-04 19:49 ` Russell King - ARM Linux
2015-07-31 17:04 ` Mark Brown
2015-07-31 17:27 ` Russell King - ARM Linux
2015-08-01 10:55 ` Laurent Pinchart
2015-08-01 16:30 ` Russell King - ARM Linux
2015-08-02 23:33 ` Laurent Pinchart
2015-08-01 10:47 ` Laurent Pinchart
2015-08-01 10:55 ` Julia Lawall
2015-08-01 11:01 ` Laurent Pinchart
2015-08-01 15:18 ` Tejun Heo
2015-08-02 0:48 ` Guenter Roeck
2015-08-02 14:30 ` Russell King - ARM Linux
2015-08-02 16:04 ` Guenter Roeck
2015-08-04 10:40 ` Daniel Vetter
2015-08-04 11:18 ` Russell King - ARM Linux
2015-08-04 11:56 ` Daniel Vetter
2015-08-04 11:59 ` Daniel Vetter
2015-08-04 14:48 ` Tejun Heo
2015-08-04 22:44 ` Laurent Pinchart
2015-08-05 9:41 ` Daniel Vetter
2015-08-04 10:49 ` Takashi Iwai
2015-08-10 7:58 ` Linus Walleij
2015-08-10 10:23 ` Russell King - ARM Linux
2015-08-11 11:35 ` Takashi Iwai
2015-08-11 15:19 ` Daniel Vetter
2015-08-21 2:19 ` Dmitry Torokhov
2015-08-21 15:07 ` Julia Lawall
2015-08-21 16:14 ` Dmitry Torokhov
2015-08-21 16:58 ` Mark Brown
2015-08-21 17:30 ` Dmitry Torokhov
2015-08-21 17:41 ` Mark Brown
2015-08-21 17:52 ` Mark Brown
2015-08-21 18:05 ` Dmitry Torokhov
2015-08-21 18:18 ` Mark Brown
2015-10-12 18:36 ` Theodore Ts'o
2015-10-12 18:44 ` Mark Brown
2015-10-14 15:58 ` Theodore Ts'o
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