[PATCH v3 1/4] params: lift param_set_uint_minmax to common code

[Daniel Wagner]

On Wed, Jun 16, 2021 at 02:19:33PM -0700, Sagi Grimberg wrote:
> It is a useful helper hence move it to common code so others can enjoy
> it.
> 
> Suggested-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni at wdc.com>
> Cc: linux-nfs at vger.kernel.org
> Cc: linux-kernel at vger.kernel.org
> Signed-off-by: Sagi Grimberg <sagi at grimberg.me>

[...]

> +int param_set_uint_minmax(const char *val,
> +			  const struct kernel_param *kp,
> +			  unsigned int min, unsigned int max)
> +{
> +	unsigned int num;
> +	int ret;
> +
> +	if (!val)
> +		return -EINVAL;
> +	ret = kstrtouint(val, 0, &num);
> +	if (ret)
> +		return ret;
> +	if (num < min || num > max)
> +		return -EINVAL;
> +	*((unsigned int *)kp->arg) = num;
> +	return 0;
> +}
> +EXPORT_SYMBOL(param_set_uint_minmax);

Couldn't this be EXPORT_SYMBOL_GPL?