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Message-Id: <172050773908.27948.6452109648223872879.b4-ty@ellerman.id.au>
Date: Tue, 09 Jul 2024 16:48:59 +1000
From: Michael Ellerman <patch-notifications@...erman.id.au>
To: mpe@...erman.id.au, npiggin@...il.com, Krishna Kumar <krishnak@...ux.ibm.com>
Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, brking@...ux.ibm.com, gbatra@...ux.ibm.com, aneesh.kumar@...nel.org, christophe.leroy@...roup.eu, nathanl@...ux.ibm.com, bhelgaas@...gle.com, oohall@...il.com, tpearson@...torengineering.com
Subject: Re: [PATCH v4 0/2] PCI hotplug driver fixes

On Mon, 01 Jul 2024 13:15:05 +0530, Krishna Kumar wrote:
> The fix of Powerpc hotplug driver (drivers/pci/hotplug/pnv_php.c)
> addresses below two issues.
> 
> 1. Kernel Crash during hot unplug of bridge/switch slot.
> 
> 2. Bridge Support Enablement - Previously, when we do a hot-unplug
> operation on a bridge slot, all the ports and devices behind the
> bridge-ports would be hot-unplugged/offline, but when we do a hot-plug
> operation on the same bridge slot, all the ports and devices behind the
> bridge would not get hot-plugged/online. In this case, Only the first
> port of the bridge gets enabled and the remaining port/devices remain
> unplugged/offline.  After the fix, The hot-unplug and hot-plug
> operations on the slot associated with the bridge started behaving
> correctly and became in sync. Now, after the hot plug operation on the
> same slot, all the bridge ports and devices behind the bridge become
> hot-plugged/online/restored in the same manner as it was before the
> hot-unplug operation.
> 
> [...]

Applied to powerpc/next.

[1/2] pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv
      https://git.kernel.org/powerpc/c/335e35b748527f0c06ded9eebb65387f60647fda
[2/2] powerpc: hotplug driver bridge support
      https://git.kernel.org/powerpc/c/20ce0c247b2500cb7060cb115274ba71abda2626

cheers

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