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. This series is created on top of [1] and [2] [1] -> http://lore.kernel.org/r/20191209092147.22901-1-kishon@xxxxxx [2] -> http://lore.kernel.org/r/20191230123315.31037-1-kishon@xxxxxx 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: Protect concurrent access to memory allocation with mutex 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
