From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: linux-kernel@vger.kernel.org
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
xen-devel@lists.xensource.com, Don Dutile <ddutile@redhat.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Sheng Yang <sheng@linux.intel.com>
Subject: [PATCH 04/12] Fix find_unbound_irq in presence of ioapic irqs.
Date: Tue, 18 May 2010 11:22:59 +0100 [thread overview]
Message-ID: <1274178187-20602-4-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1005181054260.11380@kaball-desktop>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
drivers/xen/events.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 3523dbb..a137a2f 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -337,9 +337,18 @@ static int find_unbound_irq(void)
int irq;
struct irq_desc *desc;
- for (irq = 0; irq < nr_irqs; irq++)
+ for (irq = 0; irq < nr_irqs; irq++) {
+ desc = irq_to_desc(irq);
+ /* only 0->15 have init'd desc; handle irq > 16 */
+ if (desc == NULL)
+ break;
+ if (desc->chip == &no_irq_chip)
+ break;
+ if (desc->chip != &xen_dynamic_chip)
+ continue;
if (irq_info[irq].type == IRQT_UNBOUND)
break;
+ }
if (irq == nr_irqs)
panic("No available IRQ to bind to: increase nr_irqs!\n");
--
1.5.4.3
next prev parent reply other threads:[~2010-05-18 10:22 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-18 10:22 [PATCH 0 of 12] PV on HVM Xen Stefano Stabellini
2010-05-18 10:22 ` [PATCH 01/12] Add support for hvm_op Stefano Stabellini
2010-05-18 10:22 ` [PATCH 02/12] early PV on HVM Stefano Stabellini
2010-05-18 10:22 ` [PATCH 03/12] evtchn delivery " Stefano Stabellini
2010-05-18 17:17 ` Jeremy Fitzhardinge
2010-05-19 12:24 ` Stefano Stabellini
2010-05-19 18:19 ` Jeremy Fitzhardinge
2010-05-18 17:43 ` Jeremy Fitzhardinge
2010-05-19 13:01 ` Stefano Stabellini
2010-05-18 18:10 ` Jeremy Fitzhardinge
2010-05-19 13:08 ` Stefano Stabellini
2010-05-18 10:22 ` Stefano Stabellini [this message]
2010-05-18 10:23 ` [PATCH 05/12] unplug emulated disks and nics Stefano Stabellini
2010-05-18 17:27 ` Jeremy Fitzhardinge
2010-05-19 13:00 ` Stefano Stabellini
2010-05-18 10:23 ` [PATCH 06/12] xen pci platform device driver Stefano Stabellini
2010-05-18 18:11 ` Jeremy Fitzhardinge
2010-05-19 13:50 ` Stefano Stabellini
2010-05-18 10:23 ` [PATCH 07/12] Add suspend\resume support for PV on HVM guests Stefano Stabellini
2010-05-18 18:11 ` Jeremy Fitzhardinge
2010-05-19 14:18 ` Stefano Stabellini
2010-05-18 10:23 ` [PATCH 08/12] Allow xen platform pci device to be compiled as a module Stefano Stabellini
2010-05-18 18:15 ` Jeremy Fitzhardinge
2010-05-19 14:19 ` Stefano Stabellini
2010-05-18 10:23 ` [PATCH 09/12] Fix possible NULL pointer dereference in print_IO_APIC Stefano Stabellini
2010-05-18 18:15 ` Jeremy Fitzhardinge
2010-05-19 14:25 ` Stefano Stabellini
2010-05-18 10:23 ` [PATCH 10/12] __setup_vector_irq: handle NULL chip_data Stefano Stabellini
2010-05-18 10:23 ` [PATCH 11/12] Support VIRQ_TIMER and pvclock on HVM Stefano Stabellini
2010-05-18 18:23 ` Jeremy Fitzhardinge
2010-05-18 10:23 ` [PATCH 12/12] Initialize xenbus device structs with ENODEV as default state Stefano Stabellini
2010-05-18 18:28 ` Jeremy Fitzhardinge
2010-05-18 10:55 ` [PATCH 0 of 12] PV on HVM Xen Christian Tramnitz
2010-05-18 18:41 ` Jeremy Fitzhardinge
2010-05-24 17:28 ` Stefano Stabellini
2010-05-24 19:32 ` Pasi Kärkkäinen
2010-05-24 19:51 ` Stefano Stabellini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1274178187-20602-4-git-send-email-stefano.stabellini@eu.citrix.com \
--to=stefano.stabellini@eu.citrix.com \
--cc=ddutile@redhat.com \
--cc=jeremy@goop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sheng@linux.intel.com \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).