diff mbox series

[RFC,1/9] netlink: introduce nla_put_bitfield32()

Message ID d4d511a34678636157acdc245a37124b6c3ea9c1.1513000306.git.mkubecek@suse.cz
State RFC, archived
Delegated to: David Miller
Headers show
Series ethtool netlink interface (WiP) | expand

Commit Message

Michal Kubecek Dec. 11, 2017, 1:53 p.m. UTC
Similar to other data types, this helper puts NLA_BITFIELD32 attribute into
a netlink message. It takes separate value and selector arguments, if you
already have struct nla_bitfield32, you can use nla_put().

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
---
 include/net/netlink.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/include/net/netlink.h b/include/net/netlink.h
index 0c154f98e987..6d4eb6bd9235 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -1064,6 +1064,21 @@  static inline int nla_put_in6_addr(struct sk_buff *skb, int attrtype,
 	return nla_put(skb, attrtype, sizeof(*addr), addr);
 }
 
+/**
+ * nla_put_bitfield32 - Add a bitfield32 value/selector attribute to
+ * a socket buffer
+ * @skb: socket buffer to add attribute to
+ * @value: 32-bit value bitmap
+ * @selector: 32-bit selector bitmap
+ */
+static inline int nla_put_bitfield32(struct sk_buff *skb, int attrtype,
+				     u32 value, u32 selector)
+{
+	struct nla_bitfield32 tmp = { .value = value, .selector = selector };
+
+	return nla_put(skb, attrtype, sizeof(tmp), &tmp);
+}
+
 /**
  * nla_get_u32 - return payload of u32 attribute
  * @nla: u32 netlink attribute