Re: [PATCH 1/3] scsi_dh: Add modalias support for SCSI targets

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.. snip.. 
>  static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
>  {
>  	struct scsi_device *sdev;
> +	char buffer[501];

Why '501' ? How did you come up with that number?

> +	int rc;
>  
>  	if (dev->type != &scsi_dev_type)
>  		return 0;
>  
>  	sdev = to_scsi_device(dev);
>  
> -	add_uevent_var(env, "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type);
> +	buffer[500] = '\0';

Shouldn't that be buffer[501] ?

> +	rc = format_scsi_modalias(sdev, buffer, 500);
> +	if (rc < 0)
> +		return rc;
> +
> +	add_uevent_var(env, "MODALIAS=%s", buffer);
>  	return 0;
>  }
>  
> @@ -697,8 +745,11 @@ static ssize_t
>  sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
>  {
>  	struct scsi_device *sdev;
> +	ssize_t rc;
> +
>  	sdev = to_scsi_device(dev);
> -	return snprintf (buf, 20, SCSI_DEVICE_MODALIAS_FMT "\n", sdev->type);
> +	rc = format_scsi_modalias(sdev, buf, 500);

Maybe a #define for that magic number?

> +	return rc;
>  }
.. snip ..
>  /* Ignore any prefix, eg. some architectures prepend _ */
>  static inline int sym_is(const char *symbol, const char *name)
>  {
> @@ -736,6 +769,7 @@ static void do_table(void *symval, unsig
>  	size -= id_size;
>  
>  	for (i = 0; i < size; i += id_size) {
> +		memset(alias, '\0', 500);

How about:
memset (alias, 0x0, A_BIG_NUMBER);

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