From: Bjorn Helgaas <bhelgaas@google.com>
To: Wei Yang <weiyang@linux.vnet.ibm.com>
Cc: gwshan@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org,
linux-pci@vger.kernel.org
Subject: Re: [PATCH V7 03/10] powerpc/pci: Remove VFs prior to PF
Date: Mon, 1 Jun 2015 18:20:05 -0500 [thread overview]
Message-ID: <20150601232005.GD3631@google.com> (raw)
In-Reply-To: <1432032612-21701-4-git-send-email-weiyang@linux.vnet.ibm.com>
On Tue, May 19, 2015 at 06:50:05PM +0800, Wei Yang wrote:
> As commit ac205b7b ("PCI: make sriov work with hotplug remove") indicates,
The conventional reference is:
ac205b7bb72f ("PCI: make sriov work with hotplug remove")
> VFs, which might be hooked to same PCI bus as their PF should be removed
> before the PF. Otherwise, the PCI hot unplugging on the PCI bus would
> cause kernel crash.
>
> The patch applies the above pattern to PowerPC PCI hotplug path.
>
> [gwshan: changelog]
> Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
> Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/pci-hotplug.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c
> index 7ed85a6..98f84ed 100644
> --- a/arch/powerpc/kernel/pci-hotplug.c
> +++ b/arch/powerpc/kernel/pci-hotplug.c
> @@ -50,7 +50,7 @@ void pcibios_remove_pci_devices(struct pci_bus *bus)
>
> pr_debug("PCI: Removing devices on bus %04x:%02x\n",
> pci_domain_nr(bus), bus->number);
> - list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
> + list_for_each_entry_safe_reverse(dev, tmp, &bus->devices, bus_list) {
> pr_debug(" Removing %s...\n", pci_name(dev));
> pci_stop_and_remove_bus_device(dev);
> }
> --
> 1.7.9.5
>
next prev parent reply other threads:[~2015-06-01 23:20 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-19 1:35 [PATCH V6 00/10] VF EEH on Power8 Wei Yang
2015-05-19 1:35 ` [PATCH V6 01/10] PCI/IOV: Rename and export virtfn_add/virtfn_remove Wei Yang
2015-05-19 5:24 ` Wei Yang
2015-05-19 1:35 ` [PATCH V6 02/10] powerpc/pci: Cache VF index in pci_dn Wei Yang
2015-05-19 1:35 ` [PATCH V6 03/10] powerpc/pci: Remove VFs prior to PF Wei Yang
2015-05-19 1:35 ` [PATCH V6 04/10] powerpc/eeh: Trace first 7 BARs in address cache Wei Yang
2015-05-19 1:35 ` [PATCH V6 05/10] powerpc/powernv: EEH device for VF Wei Yang
2015-05-19 1:35 ` [PATCH V6 06/10] powerpc/eeh: Create PE for VFs Wei Yang
2015-05-19 1:35 ` [PATCH V6 07/10] powerpc/powernv: Support EEH reset for VF PE Wei Yang
2015-05-19 1:35 ` [PATCH V6 08/10] powerpc/powernv: Support PCI config restore for VFs Wei Yang
2015-05-19 1:35 ` [PATCH V6 09/10] powerpc/eeh: Support error recovery for VF PE Wei Yang
2015-05-19 1:35 ` [PATCH V6 10/10] powerpc/powernv: compound PE for VFs Wei Yang
2015-05-19 10:50 ` [PATCH V7 00/10] VF EEH on Power8 Wei Yang
2015-05-19 10:50 ` [PATCH V7 01/10] PCI/IOV: Rename and export virtfn_add/virtfn_remove Wei Yang
2015-06-02 17:19 ` Bjorn Helgaas
2015-06-03 1:38 ` Wei Yang
2015-05-19 10:50 ` [PATCH V7 02/10] powerpc/pci: Cache VF index in pci_dn Wei Yang
2015-05-19 10:50 ` [PATCH V7 03/10] powerpc/pci: Remove VFs prior to PF Wei Yang
2015-06-01 23:20 ` Bjorn Helgaas [this message]
2015-06-02 3:44 ` Wei Yang
2015-05-19 10:50 ` [PATCH V7 04/10] powerpc/eeh: Trace first 7 BARs in address cache Wei Yang
2015-06-01 23:32 ` Bjorn Helgaas
2015-06-02 3:51 ` Wei Yang
2015-06-02 4:11 ` Gavin Shan
2015-06-03 1:47 ` Wei Yang
2015-05-19 10:50 ` [PATCH V7 05/10] powerpc/powernv: EEH device for VF Wei Yang
2015-05-19 10:50 ` [PATCH V7 06/10] powerpc/eeh: Create PE for VFs Wei Yang
2015-06-01 23:46 ` Bjorn Helgaas
2015-06-03 3:31 ` Wei Yang
2015-06-03 5:10 ` Gavin Shan
2015-06-03 15:46 ` Bjorn Helgaas
2015-06-04 1:25 ` Gavin Shan
2015-06-04 5:46 ` Wei Yang
2015-06-04 7:10 ` Gavin Shan
2015-06-16 8:50 ` Wei Yang
2015-06-16 13:22 ` Bjorn Helgaas
2015-06-01 23:49 ` Bjorn Helgaas
2015-06-03 3:39 ` Wei Yang
2015-05-19 10:50 ` [PATCH V7 07/10] powerpc/powernv: Support EEH reset for VF PE Wei Yang
2015-05-19 10:50 ` [PATCH V7 08/10] powerpc/powernv: Support PCI config restore for VFs Wei Yang
2015-06-02 0:01 ` Bjorn Helgaas
2015-06-03 1:37 ` Wei Yang
2015-06-03 5:14 ` Gavin Shan
2015-05-19 10:50 ` [PATCH V7 09/10] powerpc/eeh: Support error recovery for VF PE Wei Yang
2015-05-19 10:50 ` [PATCH V7 10/10] powerpc/powernv: compound PE for VFs Wei Yang
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