From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51649 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933361AbcE3U32 (ORCPT ); Mon, 30 May 2016 16:29:28 -0400 Subject: Patch "xen/x86: actually allocate legacy interrupts on PV guests" has been added to the 4.5-stable tree To: sstabellini@kernel.org, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 30 May 2016 13:23:08 -0700 Message-ID: <1464639788736@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled xen/x86: actually allocate legacy interrupts on PV guests to the 4.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: xen-x86-actually-allocate-legacy-interrupts-on-pv-guests.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 702f926067d2a4b28c10a3c41a1172dd62d9e735 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Wed, 20 Apr 2016 14:15:01 +0100 Subject: xen/x86: actually allocate legacy interrupts on PV guests From: Stefano Stabellini commit 702f926067d2a4b28c10a3c41a1172dd62d9e735 upstream. b4ff8389ed14 is incomplete: relies on nr_legacy_irqs() to get the number of legacy interrupts when actually nr_legacy_irqs() returns 0 after probe_8259A(). Use NR_IRQS_LEGACY instead. Signed-off-by: Stefano Stabellini Signed-off-by: Greg Kroah-Hartman --- arch/x86/pci/xen.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -491,8 +491,11 @@ int __init pci_xen_initial_domain(void) #endif __acpi_register_gsi = acpi_register_gsi_xen; __acpi_unregister_gsi = NULL; - /* Pre-allocate legacy irqs */ - for (irq = 0; irq < nr_legacy_irqs(); irq++) { + /* + * Pre-allocate the legacy IRQs. Use NR_LEGACY_IRQS here + * because we don't have a PIC and thus nr_legacy_irqs() is zero. + */ + for (irq = 0; irq < NR_IRQS_LEGACY; irq++) { int trigger, polarity; if (acpi_get_override_irq(irq, &trigger, &polarity) == -1) Patches currently in stable-queue which might be from sstabellini@kernel.org are queue-4.5/xen-x86-actually-allocate-legacy-interrupts-on-pv-guests.patch