From: Bjorn Helgaas <helgaas@kernel.org>
To: stable@vger.kernel.org
Cc: linux-pci@vger.kernel.org, Rob Groner <rgroner@rtd.com>,
jiang.liu@linux.intel.com, tglx@linutronix.de
Subject: Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"
Date: Thu, 31 Mar 2016 10:20:58 -0500 [thread overview]
Message-ID: <20160331152058.GB15801@localhost> (raw)
Please cherry pick the following commit from Linus' tree:
6c777e8799a9 ("Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"")
to the v4.3.x and v4.4.x stable trees.
This fixes a regression introduced by 991de2e59090 ("PCI, x86:
Implement pcibios_alloc_irq() and pcibios_free_irq()"), which appeared
in v4.3.
The bug causes some PCI drivers to stop working in v4.3. I think the
problem is more related to the PCI topology, e.g., whether a device is
behind a bridge, and the bridge IRQ setup, than it is to the PCI
driver.
Bjorn
next reply other threads:[~2016-03-31 15:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-31 15:20 Bjorn Helgaas [this message]
2016-04-09 17:59 ` Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()" Greg KH
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