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[04/12] header: Add nl80211_validate_nested()

Message ID 20190805120704.13128-5-hauke@hauke-m.de (mailing list archive)
State Accepted
Headers show
Series backports: Update to kernel 5.3-rc3 | expand

Commit Message

Hauke Mehrtens Aug. 5, 2019, 12:06 p.m. UTC 
nl80211_validate_nested() was added in commit 901bb9891855 ("nl80211:
require and validate vendor command policy") in kernel 5.3 and is used
by nl80211.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 backport/backport-include/net/netlink.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/backport/backport-include/net/netlink.h b/backport/backport-include/net/netlink.h
index 4d73c57f..b2045e44 100644
--- a/backport/backport-include/net/netlink.h
+++ b/backport/backport-include/net/netlink.h
@@ -266,6 +266,18 @@  nla_validate_nested_deprecated(const struct nlattr *start, int maxtype,
 }
 #endif /* < 5.2 */
 
+#if LINUX_VERSION_IS_LESS(5,3,0)
+#define nl80211_validate_nested LINUX_BACKPORT(nl80211_validate_nested)
+static inline int
+nl80211_validate_nested(const struct nlattr *start, int maxtype,
+			const struct nla_policy *policy,
+			struct netlink_ext_ack *extack)
+{
+	return __nla_validate_nested(start, maxtype, policy,
+				     NL_VALIDATE_STRICT, extack);
+}
+#endif /* < 5.3 */
+
 #if LINUX_VERSION_IS_LESS(5,1,0)
 #undef NLA_POLICY_NESTED
 #undef NLA_POLICY_NESTED_ARRAY