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authorMartin KaFai Lau <kafai@fb.com>2016-11-15 11:00:04 -0800
committerDavid S. Miller <davem@davemloft.net>2016-11-16 11:30:56 -0500
commit2874aa2e467dbc0b4f7cb0ee5dc872e98e000a47 (patch)
treea91b2a4ee9f933c0d4960e8145c735d263992efd
parent46738b1317e169b281ad74690276916e24d1be6d (diff)
downloadlinux-2874aa2e467dbc0b4f7cb0ee5dc872e98e000a47.tar.bz2
bpf: Fix compilation warning in __bpf_lru_list_rotate_inactive
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 <davem@davemloft.net> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--kernel/bpf/bpf_lru_list.c2
1 files changed, 1 insertions, 1 deletions
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;