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SubjectRe: [PATCH 1/2] dmaengine: add msm bam dma driver
On 10/30/13 13:31, Andy Gross wrote:
> On Tue, Oct 29, 2013 at 10:56:03AM -0700, Stephen Boyd wrote:
>> On 10/25, Andy Gross wrote:
>>> +#include <linux/scatterlist.h>
>>> +#include <linux/device.h>
>>> +#include <linux/platform_device.h>
>>> +#include <linux/of.h>
>>> +#include <linux/of_address.h>
>>> +#include <linux/of_irq.h>
>>> +#include <linux/of_dma.h>
>>> +#include <linux/clk.h>
>>> +#include <linux/msm_bam_dma.h>
>>> +
>>> +#include "dmaengine.h"
>>> +#include "msm_bam_dma_priv.h"
>> Why do we need this file? Can't we just put the #defines in this
>> file?
>
> There were enough definitions and structures to warrant another file.
>

Ah ok. I find it annoying to flip between two files but I guess that's
my problem.

>>> + if (!bdev) {
>>> + dev_err(&pdev->dev, "insufficient memory for private data\n");
>> kmalloc calls already print errors when they fail, so this can be
>> removed.
>
> has this always been the case?

The warning in the page allocator seems to have been there since pre-git
days (see __alloc_pages_slowpath() and how it calls warn_alloc_failed())
. Other warnings in the sl*b allocators seem to have come later (see
8bdec192b40cf7f7eec170b317c76089eb5eeddb for example).

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