Re: [PATCH 4/4] Staging: vme: devices: fix coding style issues in vme_user.c

[Martyn Welch <martyn.welch@ge.com>]

Gustavo Silva wrote:
> This is a patch to the vme_user.c file that fixes up the following
> issues:
>
> WARNING: please, no space before tabs						x 12
> ERROR: code indent should use tabs where possible				x 15
> WARNING: braces {} are not necessary for single statement blocks		x  2
> WARNING: printk() should include KERN_ facility level				x  3
> ERROR: "foo * bar" should be "foo *bar"						x  1
> ERROR: space required before the open brace '{'					x  3
> WARNING: space prohibited between function name and open parenthesis '('	x  1
> ERROR: spaces required around that '=' (ctx:VxV)				x  2
> ERROR: spaces required around that '<' (ctx:VxV)				x  2
> ERROR: space required after that ',' (ctx:VxV)					x  3
> ERROR: spaces required around that '?' (ctx:VxW)				x  1
> ERROR: space required before the open parenthesis '('				x  1
> WARNING: braces {} are not necessary for single statement blocks		x  2
>
>   

This looks very familiar - I'm sure there was a patch already on the
mailing list doing this, but it has some issues which I don't think were
ever addressed. This one looks good though.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
> Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
> ---
>  drivers/staging/vme/devices/vme_user.c |   89 ++++++++++++++++----------------
>  1 files changed, 44 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
> index bc16fc0..7885f81 100644
> --- a/drivers/staging/vme/devices/vme_user.c
> +++ b/drivers/staging/vme/devices/vme_user.c
> @@ -48,19 +48,19 @@ static int bus_num;
>  /* Currently Documentation/devices.txt defines the following for VME:
>   *
>   * 221 char	VME bus
> - * 		  0 = /dev/bus/vme/m0		First master image
> - * 		  1 = /dev/bus/vme/m1		Second master image
> - * 		  2 = /dev/bus/vme/m2		Third master image
> - * 		  3 = /dev/bus/vme/m3		Fourth master image
> - * 		  4 = /dev/bus/vme/s0		First slave image
> - * 		  5 = /dev/bus/vme/s1		Second slave image
> - * 		  6 = /dev/bus/vme/s2		Third slave image
> - * 		  7 = /dev/bus/vme/s3		Fourth slave image
> - * 		  8 = /dev/bus/vme/ctl		Control
> + *		  0 = /dev/bus/vme/m0		First master image
> + *		  1 = /dev/bus/vme/m1		Second master image
> + *		  2 = /dev/bus/vme/m2		Third master image
> + *		  3 = /dev/bus/vme/m3		Fourth master image
> + *		  4 = /dev/bus/vme/s0		First slave image
> + *		  5 = /dev/bus/vme/s1		Second slave image
> + *		  6 = /dev/bus/vme/s2		Third slave image
> + *		  7 = /dev/bus/vme/s3		Fourth slave image
> + *		  8 = /dev/bus/vme/ctl		Control
>   *
> - * 		It is expected that all VME bus drivers will use the
> - * 		same interface.  For interface documentation see
> - * 		http://www.vmelinux.org/.
> + *		It is expected that all VME bus drivers will use the
> + *		same interface.  For interface documentation see
> + *		http://www.vmelinux.org/.
>   *
>   * However the VME driver at http://www.vmelinux.org/ is rather old and doesn't
>   * even support the tsi148 chipset (which has 8 master and 8 slave windows).
> @@ -137,12 +137,12 @@ static int __init vme_user_probe(struct device *, int, int);
>  static int __exit vme_user_remove(struct device *, int, int);
>  
>  static struct file_operations vme_user_fops = {
> -        .open = vme_user_open,
> -        .release = vme_user_release,
> -        .read = vme_user_read,
> -        .write = vme_user_write,
> -        .llseek = vme_user_llseek,
> -        .unlocked_ioctl = vme_user_unlocked_ioctl,
> +		.open = vme_user_open,
> +		.release = vme_user_release,
> +		.read = vme_user_read,
> +		.write = vme_user_write,
> +		.llseek = vme_user_llseek,
> +		.unlocked_ioctl = vme_user_unlocked_ioctl,
>  };
>  
>  
> @@ -151,13 +151,13 @@ static struct file_operations vme_user_fops = {
>   */
>  static void reset_counters(void)
>  {
> -        statistics.reads = 0;
> -        statistics.writes = 0;
> -        statistics.ioctls = 0;
> -        statistics.irqs = 0;
> -        statistics.berrs = 0;
> -        statistics.dmaErrors = 0;
> -        statistics.timeouts = 0;
> +		statistics.reads = 0;
> +		statistics.writes = 0;
> +		statistics.ioctls = 0;
> +		statistics.irqs = 0;
> +		statistics.berrs = 0;
> +		statistics.dmaErrors = 0;
> +		statistics.timeouts = 0;
>  }
>  
>  static int vme_user_open(struct inode *inode, struct file *file)
> @@ -216,21 +216,20 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count,
>  		/* We copy to kernel buffer */
>  		copied = vme_master_read(image[minor].resource,
>  			image[minor].kern_buf, count, *ppos);
> -		if (copied < 0) {
> +		if (copied < 0)
>  			return (int)copied;
> -		}
>  
>  		retval = __copy_to_user(buf, image[minor].kern_buf,
>  			(unsigned long)copied);
>  		if (retval != 0) {
>  			copied = (copied - retval);
> -			printk("User copy failed\n");
> +			printk(KERN_ERR "User copy failed\n");
>  			return -EINVAL;
>  		}
>  
>  	} else {
>  		/* XXX Need to write this */
> -		printk("Currently don't support large transfers\n");
> +		printk(KERN_ERR "Currently don't support large transfers\n");
>  		/* Map in pages from userspace */
>  
>  		/* Call vme_master_read to do the transfer */
> @@ -264,7 +263,7 @@ static ssize_t resource_from_user(unsigned int minor, const char *buf,
>  			image[minor].kern_buf, copied, *ppos);
>  	} else {
>  		/* XXX Need to write this */
> -		printk("Currently don't support large transfers\n");
> +		printk(KERN_ERR "Currently don't support large transfers\n");
>  		/* Map in pages from userspace */
>  
>  		/* Call vme_master_write to do the transfer */
> @@ -313,7 +312,7 @@ static ssize_t buffer_from_user(unsigned int minor, const char *buf,
>  }
>  
>  static ssize_t vme_user_read(struct file *file, char *buf, size_t count,
> -			loff_t * ppos)
> +			loff_t *ppos)
>  {
>  	unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev);
>  	ssize_t retval;
> @@ -337,7 +336,7 @@ static ssize_t vme_user_read(struct file *file, char *buf, size_t count,
>  	else
>  		okcount = count;
>  
> -	switch (type[minor]){
> +	switch (type[minor]) {
>  	case MASTER_MINOR:
>  		retval = resource_to_user(minor, buf, okcount, ppos);
>  		break;
> @@ -380,7 +379,7 @@ static ssize_t vme_user_write(struct file *file, const char *buf, size_t count,
>  	else
>  		okcount = count;
>  
> -	switch (type[minor]){
> +	switch (type[minor]) {
>  	case MASTER_MINOR:
>  		retval = resource_from_user(minor, buf, okcount, ppos);
>  		break;
> @@ -571,7 +570,7 @@ vme_user_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
>  /*
>   * Unallocate a previously allocated buffer
>   */
> -static void buf_unalloc (int num)
> +static void buf_unalloc(int num)
>  {
>  	if (image[num].kern_buf) {
>  #ifdef VME_DEBUG
> @@ -594,9 +593,9 @@ static void buf_unalloc (int num)
>  }
>  
>  static struct vme_driver vme_user_driver = {
> -        .name = driver_name,
> -        .probe = vme_user_probe,
> -	.remove = vme_user_remove,
> +		.name = driver_name,
> +		.probe = vme_user_probe,
> +		.remove = vme_user_remove,
>  };
>  
>  
> @@ -770,16 +769,16 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot)
>  	}
>  
>  	/* Add sysfs Entries */
> -	for (i=0; i<VME_DEVS; i++) {
> +	for (i = 0; i < VME_DEVS; i++) {
>  		switch (type[i]) {
>  		case MASTER_MINOR:
> -			sprintf(name,"bus/vme/m%%d");
> +			sprintf(name, "bus/vme/m%%d");
>  			break;
>  		case CONTROL_MINOR:
> -			sprintf(name,"bus/vme/ctl");
> +			sprintf(name, "bus/vme/ctl");
>  			break;
>  		case SLAVE_MINOR:
> -			sprintf(name,"bus/vme/s%%d");
> +			sprintf(name, "bus/vme/s%%d");
>  			break;
>  		default:
>  			err = -EINVAL;
> @@ -792,7 +791,7 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot)
>  				MKDEV(VME_MAJOR, i), NULL, name,
>  				(type[i] == SLAVE_MINOR)? i - (MASTER_MAX + 1) : i);
>  		if (IS_ERR(image[i].device)) {
> -			printk("%s: Error creating sysfs device\n",
> +			printk(KERN_ERR "%s: Error creating sysfs device\n",
>  				driver_name);
>  			err = PTR_ERR(image[i].device);
>  			goto err_sysfs;
> @@ -804,7 +803,7 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot)
>  	/* Ensure counter set correcty to destroy all sysfs devices */
>  	i = VME_DEVS;
>  err_sysfs:
> -	while (i > 0){
> +	while (i > 0) {
>  		i--;
>  		device_destroy(vme_user_sysfs_class, MKDEV(VME_MAJOR, i));
>  	}
> @@ -845,9 +844,9 @@ static int __exit vme_user_remove(struct device *dev, int cur_bus, int cur_slot)
>  	int i;
>  
>  	/* Remove sysfs Entries */
> -	for(i=0; i<VME_DEVS; i++) {
> +	for (i = 0; i < VME_DEVS; i++)
>  		device_destroy(vme_user_sysfs_class, MKDEV(VME_MAJOR, i));
> -	}
> +
>  	class_destroy(vme_user_sysfs_class);
>  
>  	for (i = MASTER_MINOR; i < (MASTER_MAX + 1); i++)
>   


-- 
Martyn Welch (Principal Software Engineer)   |   Registered in England and
GE Intelligent Platforms                     |   Wales (3828642) at 100
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