Re: [PATCH v3 0/5] PCI: Endpoint: Miscellaneous improvements

From: Lorenzo Pieralisi
Date: Mon Feb 24 2020 - 05:34:44 EST


On Mon, Feb 24, 2020 at 03:23:33PM +0530, Kishon Vijay Abraham I wrote:
> Changes from v2:
> *) Added "Tested-by" tag from Vidya Sagar
> *) Added stable fixes tag to "Fix for concurrent memory allocation in
> OB address region"
>
> Changes from v1:
> Rebased to Linux 5.6-rc1 and removed dependencies to my other series
> to unblock [1]
>
> [1] -> http://lore.kernel.org/r/20200103100736.27627-1-vidyas@xxxxxxxxxx
>
> v1 of this patch series can be found @
> http://lore.kernel.org/r/20191231100331.6316-1-kishon@xxxxxx
>
> This series adds miscellaneous improvements to PCIe endpoint core.
> 1) Protect concurrent access to memory allocation in pci-epc-mem
> 2) Replace spinlock with mutex in pci-epc-core and also use
> notification chain mechanism to notify EPC events to EPF driver.
> 3) Since endpoint function device can be created by multiple
> mechanisms (configfs, devicetree, etc..), allowing each of these
> mechanisms to assign a function number would result in mutliple
> endpoint function devices having the same function number. In order
> to avoid this, let EPC core assign a function number to the
> endpoint device.
>
> Kishon Vijay Abraham I (5):
> PCI: endpoint: Use notification chain mechanism to notify EPC events
> to EPF
> PCI: endpoint: Replace spinlock with mutex
> PCI: endpoint: Fix for concurrent memory allocation in OB address
> region
> PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
> PCI: endpoint: Assign function number for each PF in EPC core
>
> drivers/pci/endpoint/functions/pci-epf-test.c | 13 +-
> drivers/pci/endpoint/pci-ep-cfs.c | 27 +----
> drivers/pci/endpoint/pci-epc-core.c | 113 ++++++++----------
> drivers/pci/endpoint/pci-epc-mem.c | 10 +-
> drivers/pci/endpoint/pci-epf-core.c | 33 ++---
> include/linux/pci-epc.h | 19 ++-
> include/linux/pci-epf.h | 9 +-
> 7 files changed, 108 insertions(+), 116 deletions(-)

Applied to pci/endpoint for v5.7, thanks.

Lorenzo