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Subject[PATCH 07/20] platform: goldfish: pipe: Replace an array of 1 with a variable
From
From: Roman Kiryanov <rkir@google.com>

There is no reason to have an array of 1.

Signed-off-by: Roman Kiryanov <rkir@google.com>
---
drivers/platform/goldfish/goldfish_pipe.c | 28 +++++++++++------------
1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c
index 24e40deb98cc..e9e3e791c0d4 100644
--- a/drivers/platform/goldfish/goldfish_pipe.c
+++ b/drivers/platform/goldfish/goldfish_pipe.c
@@ -205,7 +205,7 @@ struct goldfish_pipe_dev {
unsigned char __iomem *base;
};

-static struct goldfish_pipe_dev pipe_dev[1] = {};
+struct goldfish_pipe_dev goldfish_pipe_dev;

static int goldfish_cmd_locked(struct goldfish_pipe *pipe, enum PipeCmdCode cmd)
{
@@ -564,12 +564,12 @@ static struct goldfish_pipe *signalled_pipes_pop_front(

static void goldfish_interrupt_task(unsigned long unused)
{
- struct goldfish_pipe_dev *dev = pipe_dev;
/* Iterate over the signalled pipes and wake them one by one */
struct goldfish_pipe *pipe;
int wakes;

- while ((pipe = signalled_pipes_pop_front(dev, &wakes)) != NULL) {
+ while ((pipe = signalled_pipes_pop_front(&goldfish_pipe_dev, &wakes)) !=
+ NULL) {
if (wakes & PIPE_WAKE_CLOSED) {
pipe->flags = 1 << BIT_CLOSED_ON_HOST;
} else {
@@ -607,7 +607,7 @@ static irqreturn_t goldfish_pipe_interrupt(int irq, void *dev_id)
unsigned long flags;
struct goldfish_pipe_dev *dev = dev_id;

- if (dev != pipe_dev)
+ if (dev != &goldfish_pipe_dev)
return IRQ_NONE;

/* Request the signalled pipes from the device */
@@ -672,7 +672,7 @@ static int get_free_pipe_id_locked(struct goldfish_pipe_dev *dev)
*/
static int goldfish_pipe_open(struct inode *inode, struct file *file)
{
- struct goldfish_pipe_dev *dev = pipe_dev;
+ struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
unsigned long flags;
int id;
int status;
@@ -763,7 +763,7 @@ static const struct file_operations goldfish_pipe_fops = {
.release = goldfish_pipe_release,
};

-static struct miscdevice goldfish_pipe_dev = {
+static struct miscdevice goldfish_pipe_miscdev = {
.minor = MISC_DYNAMIC_MINOR,
.name = "goldfish_pipe",
.fops = &goldfish_pipe_fops,
@@ -771,8 +771,8 @@ static struct miscdevice goldfish_pipe_dev = {

static int goldfish_pipe_device_init(struct platform_device *pdev)
{
+ struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
char *page;
- struct goldfish_pipe_dev *dev = pipe_dev;
int err = devm_request_irq(&pdev->dev, dev->irq,
goldfish_pipe_interrupt,
IRQF_SHARED, "goldfish_pipe", dev);
@@ -781,7 +781,7 @@ static int goldfish_pipe_device_init(struct platform_device *pdev)
return err;
}

- err = misc_register(&goldfish_pipe_dev);
+ err = misc_register(&goldfish_pipe_miscdev);
if (err) {
dev_err(&pdev->dev, "unable to register v2 device\n");
return err;
@@ -830,18 +830,16 @@ static int goldfish_pipe_device_init(struct platform_device *pdev)

static void goldfish_pipe_device_deinit(struct platform_device *pdev)
{
- struct goldfish_pipe_dev *dev = pipe_dev;
-
- misc_deregister(&goldfish_pipe_dev);
- kfree(dev->pipes);
- free_page((unsigned long)dev->buffers);
+ misc_deregister(&goldfish_pipe_miscdev);
+ kfree(goldfish_pipe_dev.pipes);
+ free_page((unsigned long)goldfish_pipe_dev.buffers);
}

static int goldfish_pipe_probe(struct platform_device *pdev)
{
int err;
struct resource *r;
- struct goldfish_pipe_dev *dev = pipe_dev;
+ struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;

/* not thread safe, but this should not happen */
WARN_ON(dev->base != NULL);
@@ -889,7 +887,7 @@ static int goldfish_pipe_probe(struct platform_device *pdev)

static int goldfish_pipe_remove(struct platform_device *pdev)
{
- struct goldfish_pipe_dev *dev = pipe_dev;
+ struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
goldfish_pipe_device_deinit(pdev);
dev->base = NULL;
return 0;
--
2.19.0.rc0.228.g281dcd1b4d0-goog
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