From: David Ahern <dsahern@gmail.com>
Date: Mon, 7 Jan 2019 22:29:15 +0000 (-0800)
Subject: ll_map: Add function to remove link cache entry by index
X-Git-Tag: v5.1.0~27^2~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25c6339b223f17d1603702c0c87f06b252bb4949;p=thirdparty%2Fiproute2.git

ll_map: Add function to remove link cache entry by index

Add ll_drop_by_index to remove an entry from the link cache.

Signed-off-by: David Ahern <dsahern@gmail.com>
---

diff --git a/include/ll_map.h b/include/ll_map.h
index 511fe00b8..4de1041e2 100644
--- a/include/ll_map.h
+++ b/include/ll_map.h
@@ -9,6 +9,7 @@ unsigned ll_name_to_index(const char *name);
 const char *ll_index_to_name(unsigned idx);
 int ll_index_to_type(unsigned idx);
 int ll_index_to_flags(unsigned idx);
+void ll_drop_by_index(unsigned index);
 unsigned namehash(const char *str);
 
 const char *ll_idx_n2a(unsigned int idx);
diff --git a/lib/ll_map.c b/lib/ll_map.c
index 1ab8ef075..8e8a0b1e9 100644
--- a/lib/ll_map.c
+++ b/lib/ll_map.c
@@ -210,6 +210,20 @@ unsigned ll_name_to_index(const char *name)
 	return idx;
 }
 
+void ll_drop_by_index(unsigned index)
+{
+	struct ll_cache *im;
+
+	im = ll_get_by_index(index);
+	if (!im)
+		return;
+
+	hlist_del(&im->idx_hash);
+	hlist_del(&im->name_hash);
+
+	free(im);
+}
+
 void ll_init_map(struct rtnl_handle *rth)
 {
 	static int initialized;