Re: [PATCH v7 1/3] dmaengine: ptdma: Initial driver for the AMD PTDMA
From: Vinod Koul <vkoul@kernel.org>
Date: 2021-03-22 06:05:44
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On 18-03-21, 16:16, Sanjay R Mehta wrote:
quoted
quoted
+#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/kthread.h> +#include <linux/module.h> +#include <linux/pci_ids.h> +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/sched.h>why do you need sched.h here?quoted
+ +#include "ptdma.h" + +/* Ever-increasing value to produce unique unit numbers */ +static atomic_t pt_ordinal;What is the need of that?
[please wrap your emails within 80 chars]
The "pt_ordinal" is incremented for each DMA instances and its number is used only to assign device name for each instances. This same device name is passed as a string parameter in many places in code like while using request_irq(), dma_pool_create() and in debugfs.
Why do you need that, why not use device name which is unique..?
Also, I have implemented all of the comments for this patch except this. if this is fine, will send the next version for review.
Am not sure I remember all the comments I gave, it has been _quite_ a while since the feedback was provided. In order to have effective review it would be great to revert back on a reasonable timeline and discuss... Thanks -- ~Vinod