From 3ad6f93e98d6df25d0667d847d3ab9cbdccb3eae Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 3 Jul 2017 20:14:56 -0400
Subject: annotate poll-related wait keys

__poll_t is also used as wait key in some waitqueues.
Verify that wait_..._poll() gets __poll_t as key and
provide a helper for wakeup functions to get back to
that __poll_t value.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 virt/kvm/eventfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'virt')

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index a1f68ed999d8..a334399fafec 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -188,7 +188,7 @@ irqfd_wakeup(wait_queue_entry_t *wait, unsigned mode, int sync, void *key)
 {
 	struct kvm_kernel_irqfd *irqfd =
 		container_of(wait, struct kvm_kernel_irqfd, wait);
-	unsigned long flags = (unsigned long)key;
+	__poll_t flags = key_to_poll(key);
 	struct kvm_kernel_irq_routing_entry irq;
 	struct kvm *kvm = irqfd->kvm;
 	unsigned seq;
-- 
cgit v1.2.3-70-g09d2