Re: [PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-16 Thread Michael S. Tsirkin
On Tue, Dec 11, 2018 at 08:18:08AM -0600, Bjorn Helgaas wrote: > Hi Michael, > > Please run "git log --oneline drivers/pci/setup-bus.c" and follow > the usual style. > > On Mon, Dec 10, 2018 at 09:18:40PM -0500, Michael S. Tsirkin wrote: > > commit 1f82de10d6 ("PCI/x86: don't assume prefetchable

Re: [PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-11 Thread Michael S. Tsirkin
On Tue, Dec 11, 2018 at 08:18:08AM -0600, Bjorn Helgaas wrote: > Hi Michael, > > Please run "git log --oneline drivers/pci/setup-bus.c" and follow > the usual style. > > On Mon, Dec 10, 2018 at 09:18:40PM -0500, Michael S. Tsirkin wrote: > > commit 1f82de10d6 ("PCI/x86: don't assume prefetchable

Re: [PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-11 Thread Bjorn Helgaas
Hi Michael, Please run "git log --oneline drivers/pci/setup-bus.c" and follow the usual style. On Mon, Dec 10, 2018 at 09:18:40PM -0500, Michael S. Tsirkin wrote: > commit 1f82de10d6 ("PCI/x86: don't assume prefetchable ranges are > 64bit") added probing of bridge support for 64 bit memory >

Re: [PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-10 Thread Michael S. Tsirkin
a...@vger.kernel.org; Yinghai > > Lu ; Jesse Barnes ; Bjorn > > Helgaas ; linux-...@vger.kernel.org > > Subject: [PATCH] pci: avoid bridge feature re-probing on hotplug > > > > commit 1f82de10d6 ("PCI/x86: don't assume prefetchable ranges are > > 64bit")

RE: [PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-10 Thread xuyandong
org > Subject: [PATCH] pci: avoid bridge feature re-probing on hotplug > > commit 1f82de10d6 ("PCI/x86: don't assume prefetchable ranges are > 64bit") added probing of bridge support for 64 bit memory each time bridge is > re-enumerated. > > Unfortunately this pr

[PATCH] pci: avoid bridge feature re-probing on hotplug

2018-12-10 Thread Michael S. Tsirkin
commit 1f82de10d6 ("PCI/x86: don't assume prefetchable ranges are 64bit") added probing of bridge support for 64 bit memory each time bridge is re-enumerated. Unfortunately this probing is destructive if any device behind the bridge is in use at this time. There's no real need to re-probe the