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From: Sekhar Nori <nsekhar@ti.com>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Kevin Hilman <khilman@baylibre.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Peter Ujfalusi <peter.ujfalusi@ti.com>,
	Russell King <linux@armlinux.org.uk>,
	LKML <linux-kernel@vger.kernel.org>,
	arm-soc <linux-arm-kernel@lists.infradead.org>,
	linux-drm <dri-devel@lists.freedesktop.org>,
	linux-devicetree <devicetree@vger.kernel.org>,
	Jyri Sarha <jsarha@ti.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	David Airlie <airlied@linux.ie>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH 1/3] of: base: add support to get machine compatible string
Date: Wed, 23 Nov 2016 17:43:09 +0530	[thread overview]
Message-ID: <11467504-c700-cbfa-a945-be9ec8776144@ti.com> (raw)
In-Reply-To: <f0ba1a7a-8948-21c3-8a96-d46bf105bb7e@arm.com>

On Wednesday 23 November 2016 05:37 PM, Sudeep Holla wrote:
>> So, the if(!of_node_get()) is just an expensive NULL pointer check. I
>> think
>> it is better to be explicit about it by not using of_node_get/put() at
>> all.
>> How about:
>>
> 
> Are we planning to use this in any time sensitive paths? Anyways I am
> fine removing them.

Not worried about the time taken as much as it serving as a bad example
and getting carried over to other places where the impact might actually
be real.

> 
>> +int of_machine_get_model_name(const char **model)
>> +{
>> +       int error;
>> +
>> +       if (!of_root)
>> +               return -EINVAL;
>> +
>> +       error = of_property_read_string(of_root, "model", model);
>> +       if (error)
>> +               error = of_property_read_string_index(of_root,
>> "compatible",
>> +                                                     0, model);
>> +       return error;
>> +}
>> +EXPORT_SYMBOL(of_machine_get_model_name);
>>
>> I know the patch is already in -next so I guess it depends on how
>> strongly
>> Rob feels about this.
> 
> Frank expressed his concerns and it may be reverted.

Didn't notice that. I will check that thread. Thanks!

Regards,
Sekhar

  reply	other threads:[~2016-11-23 12:14 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-22 10:41 [PATCH 0/3] ARM: da8xx: fix section mismatch in new drivers Bartosz Golaszewski
2016-11-22 10:41 ` [PATCH 1/3] of: base: add support to get machine compatible string Bartosz Golaszewski
2016-11-22 10:53   ` Sudeep Holla
2016-11-22 10:57     ` Bartosz Golaszewski
2016-11-22 10:58       ` Bartosz Golaszewski
2016-11-22 11:06       ` Sudeep Holla
2016-11-22 12:17         ` Sekhar Nori
2016-11-22 15:06     ` Sekhar Nori
2016-11-22 15:46       ` Sudeep Holla
2016-11-23  7:49         ` Sekhar Nori
2016-11-23 10:05           ` Sudeep Holla
2016-11-23 11:47             ` Sekhar Nori
2016-11-23 12:07               ` Sudeep Holla
2016-11-23 12:13                 ` Sekhar Nori [this message]
2016-11-23 12:15                   ` Sudeep Holla
2016-11-22 10:41 ` [PATCH 2/3] bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name() Bartosz Golaszewski
2016-11-22 10:41 ` [PATCH 3/3] memory: da8xx-ddrctl: " Bartosz Golaszewski

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