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Date:   Wed, 13 Feb 2019 16:22:47 -0800
From:   David Ahern <dsahern@...nel.org>
To:     stephen@...workplumber.org
Cc:     netdev@...r.kernel.org, David Ahern <dsahern@...il.com>
Subject: [PATCH iproute2-next v2 1/3] ll_map: Add function to remove link cache entry by index

From: David Ahern <dsahern@...il.com>

Add ll_drop_by_index to remove an entry from the link cache.

Signed-off-by: David Ahern <dsahern@...il.com>
---
 include/ll_map.h |  1 +
 lib/ll_map.c     | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/ll_map.h b/include/ll_map.h
index 511fe00b8567..4de1041e2746 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 1ab8ef0758ac..8e8a0b1e9c9d 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;
-- 
2.11.0

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