Re: [PATCH v2 0/3] PCI: Revert "Implement pcibios_alloc_irq() and pcibios_free_irq()"

Date: Wed Feb 24 2016 - 13:30:49 EST

I've checked next next-20160218 tag and confirm that it works.

18.02.2016 19:03, Bjorn Helgaas ÐÐÑÐÑ:
On Thu, Feb 18, 2016 at 08:13:41AM +0300, ÐÐÑÐÐ ÐÐÐÐ wrote:
On 17.02.2016 21:36, Bjorn Helgaas wrote:
These are clean reverts of 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") and related changes.

We have two reports of drivers broken in v4.3 by Jiang's change,
991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and

It would be best to fix the problem instead of reverting 991de2e59090, but
I don't have time to do that myself, and we haven't heard from Jiang, so
the only choice I have is to revert the commit.

Note that reverting will likely break IOAPIC hotplug.

ÐÐÐÐ and Sunjin, can you please test this and see whether it fixes your
drivers? This patch is based on v4.5-rc1.

I intend to merge these for v4.5 unless I hear objections.

They're on my for-linus branch, so they should appear in linux-next

Changes from the v1 posting:
- Explicitly revert related patches instead of resolving conflicts

Bjorn Helgaas (3):
Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"
Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"

arch/x86/include/asm/pci_x86.h | 2 ++
arch/x86/pci/common.c | 26 ++++++++++----------------
arch/x86/pci/intel_mid_pci.c | 9 +++------
arch/x86/pci/irq.c | 23 +++++++++++++++++++----
drivers/acpi/pci_irq.c | 17 +++++++++++++----
include/linux/pci.h | 17 -----------------
6 files changed, 47 insertions(+), 47 deletions(-)
As i undestand this patch will appear in kernel git repo tomorrow? I
don't need to apply in manyally to v4.5-rc1?
These are included in the next-20160218 tag in the linux-next git repo (not
Linus' repo) at:


You browse this at:

If you'd rather, you can also apply the patches yourself to v4.5-rc1.