From dace527492439284dc72605dac7668bf3a633777 Mon Sep 17 00:00:00 2001 From: George Amanakis Date: Tue, 29 Jan 2019 22:50:13 -0500 Subject: [PATCH] tun: move the call to tun_set_real_num_queues [ Upstream commit 3a03cb8456cc1d61c467a5375e0a10e5207b948c ] Call tun_set_real_num_queues() after the increment of tun->numqueues since the former depends on it. Otherwise, the number of queues is not correctly accounted for, which results to warnings similar to: "vnet0 selects TX queue 11, but real number of TX queues is 11". Fixes: 0b7959b62573 ("tun: publish tfile after it's fully initialized") Reported-and-tested-by: George Amanakis Signed-off-by: George Amanakis Signed-off-by: Stanislav Fomichev Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/tun.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 33978b0cdac8..65844f28db30 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -866,8 +866,6 @@ static int tun_attach(struct tun_struct *tun, struct file *file, tun_napi_init(tun, tfile, napi, napi_frags); } - tun_set_real_num_queues(tun); - /* device is allowed to go away first, so no need to hold extra * refcnt. */ @@ -879,6 +877,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file, rcu_assign_pointer(tfile->tun, tun); rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile); tun->numqueues++; + tun_set_real_num_queues(tun); out: return err; } -- GitLab