On Fri, 2016-02-19 at 23:02 -0800, Guenter Roeck wrote:

On Wed, Feb 17, 2016 at 08:46:13AM +0800, Yong Wu wrote:

quoted

This patch adds support for mediatek m4u (MultiMedia Memory Management
Unit).

[...]

quoted

+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/dma-iommu.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/iommu.h>
+#include <linux/iopoll.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_iommu.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <soc/mediatek/smi.h>
+#include <dt-bindings/memory/mt8173-larb-port.h>
+

Some missing includes:

linux/bug.h
	for WARN_ON()
linux/device.h
	for dev_xxx() error messages, dev_get_drvdata(), etc.
linux/err.h
	for error functions (IS_ERR, error definitions)
linux/slab.h
	for kzalloc() etc.
linux/spinlock.h
	for spinlock functions
asm/barrier.h
	for wmb()

Guenter

Hi Guenter,
    Thanks for this suggestion. I'm sorry that I didn't get any build
warning or error here. Anyway I will add them and send a quick v10.


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