From: Roland Dreier <roland@purestorage.com>
Date: Mon, 23 May 2011 18:10:05 +0000 (-0700)
Subject: IB/uverbs: Add devnode method to set path/mode
X-Git-Tag: firefly_0821_release~7613^2~1122^2^7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=71c29bd5c23559c9cabcca3bfb3152ecc5efcd75;p=firefly-linux-kernel-4.4.55.git

IB/uverbs: Add devnode method to set path/mode

We want udev to create a device node under /dev/infiniband with
permission 0666 for uverbsX devices, so add a devnode method to set the
appropriate info.

Signed-off-by: Roland Dreier <roland@purestorage.com>
---

diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index ec83e9fe387b..e49a85f8a44d 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -824,6 +824,12 @@ static void ib_uverbs_remove_one(struct ib_device *device)
 	kfree(uverbs_dev);
 }
 
+static char *uverbs_devnode(struct device *dev, mode_t *mode)
+{
+	*mode = 0666;
+	return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
+}
+
 static int __init ib_uverbs_init(void)
 {
 	int ret;
@@ -842,6 +848,8 @@ static int __init ib_uverbs_init(void)
 		goto out_chrdev;
 	}
 
+	uverbs_class->devnode = uverbs_devnode;
+
 	ret = class_create_file(uverbs_class, &class_attr_abi_version.attr);
 	if (ret) {
 		printk(KERN_ERR "user_verbs: couldn't create abi_version attribute\n");