From: Colin Ian King <colin.king@xxxxxxxxxxxxx> The WARN_ON_ONCE check on id is off-by-one, it should be greater or equal to LOWPAN_IPHC_CTX_TABLE_SIZE and not greater than. Fix this. Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx> --- net/6lowpan/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c index 1c140af06d52..a510bed8165b 100644 --- a/net/6lowpan/debugfs.c +++ b/net/6lowpan/debugfs.c @@ -170,7 +170,7 @@ static void lowpan_dev_debugfs_ctx_init(struct net_device *dev, struct dentry *root; char buf[32]; - WARN_ON_ONCE(id > LOWPAN_IPHC_CTX_TABLE_SIZE); + WARN_ON_ONCE(id >= LOWPAN_IPHC_CTX_TABLE_SIZE); sprintf(buf, "%d", id); -- 2.20.1