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From: Reza Arbab <arbab@linux.vnet.ibm.com>
To: Rob Herring <robh+dt@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Bharata B Rao <bharata@linux.vnet.ibm.com>,
	Nathan Fontenot <nfont@linux.vnet.ibm.com>,
	Stewart Smith <stewart@linux.vnet.ibm.com>,
	Alistair Popple <apopple@au1.ibm.com>,
	Balbir Singh <bsingharora@gmail.com>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH v2 1/3] drivers/of: recognize status property of dt memory nodes
Date: Thu, 15 Sep 2016 09:31:57 -0500	[thread overview]
Message-ID: <20160915143157.mi7xhxfedbic6m63@arbab-laptop> (raw)
In-Reply-To: <CAL_JsqK5ngY-eJggPSo5AGcv4CC2b8Y1X_aYzr06_Zf6Kv-u=w@mail.gmail.com>

On Thu, Sep 15, 2016 at 08:43:08AM -0500, Rob Herring wrote:
>On Wed, Sep 14, 2016 at 3:06 PM, Reza Arbab <arbab@linux.vnet.ibm.com> wrote:
>> +       status = of_get_flat_dt_prop(node, "status", NULL);
>> +       add_memory = !status || !strcmp(status, "okay");
>
>Move this into it's own function to mirror the unflattened version
>(of_device_is_available). Also, make sure the logic is the same. IIRC,
>"ok" is also allowed.

Will do. 

>> @@ -1057,6 +1062,9 @@ int __init early_init_dt_scan_memory(unsigned long node, const char *uname,
>>                 pr_debug(" - %llx ,  %llx\n", (unsigned long long)base,
>>                     (unsigned long long)size);
>>
>> +               if (!add_memory)
>> +                       continue;
>
>There's no point in checking this in the loop. status applies to the
>whole node. Just return up above.

I was trying to preserve that pr_debug output for these nodes, but I'm 
also fine with skipping it.

Thanks for your feedback! I'll spin a v3 of this patchset soon.

-- 
Reza Arbab

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  reply	other threads:[~2016-09-15 14:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-14 20:06 [PATCH v2 0/3] powerpc/mm: movable hotplug " Reza Arbab
2016-09-14 20:06 ` [PATCH v2 1/3] drivers/of: recognize status property of dt " Reza Arbab
2016-09-15 13:43   ` Rob Herring
2016-09-15 14:31     ` Reza Arbab [this message]
2016-09-19 10:11   ` Balbir Singh
2016-09-14 20:06 ` [PATCH v2 2/3] powerpc/mm: allow memory hotplug into a memoryless node Reza Arbab
2016-09-19 11:53   ` Balbir Singh
2016-09-21  5:50     ` Reza Arbab
2016-09-14 20:06 ` [PATCH v2 3/3] mm: enable CONFIG_MOVABLE_NODE on powerpc Reza Arbab
2016-09-19  6:29   ` Aneesh Kumar K.V
2016-09-21  5:45     ` Reza Arbab
2016-09-21  7:09       ` Aneesh Kumar K.V
2016-09-21 14:08         ` Reza Arbab
2016-09-21 14:43           ` Aneesh Kumar K.V
2016-09-21 22:29             ` Reza Arbab

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