From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 30 Dec 2014 22:46:15 +0000 (-0800)
Subject: ses: generate KOBJ_CHANGE on enclosure attach
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=15a0fbbc8e0d4c135b069c34258fbaebad471dd7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ses: generate KOBJ_CHANGE on enclosure attach

In support of a /dev/disk/by-slot populated with data from the enclosure
and ses modules udev needs notification when the new interface
files/links are available.  Otherwise, any udev rules specified for the
disk cannot assume that the enclosure topology has settled.

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>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 7dd9cf558380..6662b0ca6cfd 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -349,7 +349,8 @@ static int ses_enclosure_find_by_addr(struct enclosure_device *edev,
 		if (scomp->addr != efd->addr)
 			continue;
 
-		enclosure_add_device(edev, i, efd->dev);
+		if (enclosure_add_device(edev, i, efd->dev) == 0)
+			kobject_uevent(&efd->dev->kobj, KOBJ_CHANGE);
 		return 1;
 	}
 	return 0;