linux-kernel - [PATCH 01/14] xen: events: separate two unrelated halves of if condition

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Message-Id: <1299692486-28634-1-git-send-email-ian.campbell@citrix.com>
Date:	Wed,  9 Mar 2011 17:41:13 +0000
From:	Ian Campbell <ian.campbell@...rix.com>
To:	xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	Ian Campbell <ian.campbell@...rix.com>
Subject: [PATCH 01/14] xen: events: separate two unrelated halves of if condition

Clarifies which bit the comment applies to.

Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
---
 drivers/xen/events.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 6befe62..684b095 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -1143,10 +1143,14 @@ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
 	struct evtchn_bind_vcpu bind_vcpu;
 	int evtchn = evtchn_from_irq(irq);
 
-	/* events delivered via platform PCI interrupts are always
-	 * routed to vcpu 0 */
-	if (!VALID_EVTCHN(evtchn) ||
-		(xen_hvm_domain() && !xen_have_vector_callback))
+	if (!VALID_EVTCHN(evtchn))
+		return -1;
+
+	/*
+	 * Events delivered via platform PCI interrupts are always
+	 * routed to vcpu 0 and hence cannot be rebound.
+	 */
+	if (xen_hvm_domain() && !xen_have_vector_callback)
 		return -1;
 
 	/* Send future instances of this interrupt to other vcpu. */
-- 
1.5.6.5

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