From 2874aa2e467dbc0b4f7cb0ee5dc872e98e000a47 Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Tue, 15 Nov 2016 11:00:04 -0800 Subject: [PATCH] bpf: Fix compilation warning in __bpf_lru_list_rotate_inactive MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit gcc-6.2.1 gives the following warning: kernel/bpf/bpf_lru_list.c: In function ‘__bpf_lru_list_rotate_inactive.isra.3’: kernel/bpf/bpf_lru_list.c:201:28: warning: ‘next’ may be used uninitialized in this function [-Wmaybe-uninitialized] The "next" is currently initialized in the while() loop which must have >=1 iterations. This patch initializes next to get rid of the compiler warning. Fixes: 3a08c2fd7634 ("bpf: LRU List") Reported-by: David Miller Signed-off-by: Martin KaFai Lau Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- kernel/bpf/bpf_lru_list.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/bpf_lru_list.c b/kernel/bpf/bpf_lru_list.c index bfebff010ba9..89b7ef41c86b 100644 --- a/kernel/bpf/bpf_lru_list.c +++ b/kernel/bpf/bpf_lru_list.c @@ -170,7 +170,7 @@ static void __bpf_lru_list_rotate_inactive(struct bpf_lru *lru, struct bpf_lru_list *l) { struct list_head *inactive = &l->lists[BPF_LRU_LIST_T_INACTIVE]; - struct list_head *cur, *next, *last; + struct list_head *cur, *last, *next = inactive; struct bpf_lru_node *node; unsigned int i = 0; -- 2.20.1