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(-) -- 2.17.1
