diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2014-12-30 23:46:16 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2015-01-09 15:44:18 +0100 |
| commit | 967f7bab0eaaa74d7d01a56d45aa309f78fb87dd (patch) | |
| tree | c060248c671d1d2882458941d5de40a1dc7441cd /drivers/misc | |
| parent | ses: generate KOBJ_CHANGE on enclosure attach (diff) | |
| download | linux-967f7bab0eaaa74d7d01a56d45aa309f78fb87dd.tar.xz linux-967f7bab0eaaa74d7d01a56d45aa309f78fb87dd.zip | |
ses: add enclosure logical id
Export the NAA logical id for the enclosure. This is optionally
available from the sas_transport_class, but it is really a property of
the enclosure.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/enclosure.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c index e18278aa6bbb..958ee988a1e1 100644 --- a/drivers/misc/enclosure.c +++ b/drivers/misc/enclosure.c @@ -432,8 +432,21 @@ static ssize_t components_show(struct device *cdev, } static DEVICE_ATTR_RO(components); +static ssize_t id_show(struct device *cdev, + struct device_attribute *attr, + char *buf) +{ + struct enclosure_device *edev = to_enclosure_device(cdev); + + if (edev->cb->show_id) + return edev->cb->show_id(edev, buf); + return -EINVAL; +} +static DEVICE_ATTR_RO(id); + static struct attribute *enclosure_class_attrs[] = { &dev_attr_components.attr, + &dev_attr_id.attr, NULL, }; ATTRIBUTE_GROUPS(enclosure_class); |