[PATCH 3/3] CXL: Add reset to sysfs

[Ian Munsie]

Excerpts from Ryan Grimm's message of 2015-01-15 13:56:41 +1100:
> +What:           /sys/class/cxl/<card>/reset
> +Date:           October 2014
> +Contact:        linuxppc-dev at lists.ozlabs.org
> +Description:    write only
> +                Writing 1 here will issue a PERST to card.

...

> +static ssize_t reset_adapter_store(struct device *device,
> +                   struct device_attribute *attr,
> +                   const char *buf, size_t count)
> +{
> +    struct cxl *adapter = to_cxl_adapter(device);
> +    int rc;
> +
> +    if ((rc = cxl_reset(adapter)))
> +        return rc;
> +    return count;
> +}

Looks like we reset the card no matter what is written to that file?

I like the description better - add a test here to match what it says.

Cheers,
-Ian