netdev - [RFC iproute2-next v1 2/5] include: Add helper to retrieve a _

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Message-Id: <20180714000611.1179-3-vinicius.gomes@intel.com>
Date:   Fri, 13 Jul 2018 17:06:08 -0700
From:   Vinicius Costa Gomes <vinicius.gomes@...el.com>
To:     netdev@...r.kernel.org
Cc:     Vinicius Costa Gomes <vinicius.gomes@...el.com>, jhs@...atatu.com,
        xiyou.wangcong@...il.com, jiri@...nulli.us,
        jesus.sanchez-palencia@...el.com
Subject: [RFC iproute2-next v1 2/5] include: Add helper to retrieve a __s64 from a netlink msg

This allows signed 64-bit integers to be retrieved from a netlink
message.
---
 include/libnetlink.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/libnetlink.h b/include/libnetlink.h
index 9d9249e6..88164975 100644
--- a/include/libnetlink.h
+++ b/include/libnetlink.h
@@ -185,6 +185,13 @@ static inline __u64 rta_getattr_u64(const struct rtattr *rta)
 	memcpy(&tmp, RTA_DATA(rta), sizeof(__u64));
 	return tmp;
 }
+static inline __s64 rta_getattr_s64(const struct rtattr *rta)
+{
+	__s64 tmp;
+
+	memcpy(&tmp, RTA_DATA(rta), sizeof(__s64));
+	return tmp;
+}
 static inline const char *rta_getattr_str(const struct rtattr *rta)
 {
 	return (const char *)RTA_DATA(rta);
-- 
2.18.0