kernel/git/stable/linux-stable.git/drivers/pci/endpoint, branch linux-6.5.y

PCI: endpoint: Fix double free in __pci_epc_create()

2023-11-20T10:57:11+00:00

[ Upstream commit c9501d268944d6c0475ecb3e740a084a7da9cbfe ] The pci_epc_release() function frees "epc" so the kfree() on the next line is a double free. Drop the redundant free. Fixes: 7711cbb4862a ("PCI: endpoint: Fix WARN() when an endpoint driver is removed") Link: https://lore.kernel.org/r/2ce68694-87a7-4c06-b8a4-9870c891b580@moroto.mountain Signed-off-by: Dan Carpenter Signed-off-by: Bjorn Helgaas Reviewed-by: Manivannan Sadhasivam Signed-off-by: Sasha Levin

Merge tag 'ntb-6.5' of https://github.com/jonmason/ntb

2023-07-09T16:35:51+00:00

Pull NTB updates from Jon Mason: "Fixes for pci_clean_master, error handling in driver inits, and various other issues/bugs" * tag 'ntb-6.5' of https://github.com/jonmason/ntb: ntb: hw: amd: Fix debugfs_create_dir error checking ntb.rst: Fix copy and paste error ntb_netdev: Fix module_init problem ntb: intel: Remove redundant pci_clear_master ntb: epf: Remove redundant pci_clear_master ntb_hw_amd: Remove redundant pci_clear_master ntb: idt: drop redundant pci_enable_pcie_error_reporting() MAINTAINERS: git://github -> https://github.com for jonmason NTB: EPF: fix possible memory leak in pci_vntb_probe() NTB: ntb_tool: Add check for devm_kcalloc NTB: ntb_transport: fix possible memory leak while device_register() fails ntb: intel: Fix error handling in intel_ntb_pci_driver_init() NTB: amd: Fix error handling in amd_ntb_pci_driver_init() ntb: idt: Fix error handling in idt_pci_driver_init()

NTB: EPF: fix possible memory leak in pci_vntb_probe()

2023-07-08T15:02:36+00:00

As ntb_register_device() don't handle error of device_register(), if ntb_register_device() returns error in pci_vntb_probe(), name of kobject which is allocated in dev_set_name() called in device_add() is leaked. As comment of device_add() says, it should call put_device() to drop the reference count that was set in device_initialize() when it fails, so the name can be freed in kobject_cleanup(). Signed-off-by: ruanjinjie Signed-off-by: Jon Mason

PCI: endpoint: pci-epf-vntb: Fix typo in comments

2023-06-23T20:06:11+00:00

Replace "Span" with "Spad". Link: https://lore.kernel.org/r/20221214172254.668282-1-Frank.Li@nxp.com Signed-off-by: Frank Li Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Manivannan Sadhasivam

PCI: endpoint: Add PCI Endpoint function driver for MHI bus

2023-06-23T20:05:49+00:00

Add PCI Endpoint driver for the Qualcomm MHI (Modem Host Interface) bus. The driver implements the MHI function over PCI in the endpoint device such as SDX55 modem. The MHI endpoint function driver acts as a controller driver for the MHI Endpoint stack and carries out all PCI related functionality. Link: https://lore.kernel.org/r/20230602114756.36586-9-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Damien Le Moal

PCI: endpoint: Add BME notifier support

2023-06-23T20:05:28+00:00

Add support to notify the EPF device about the Bus Master Enable (BME) event received by the EPC device from the Root complex. Link: https://lore.kernel.org/r/20230602114756.36586-6-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Damien Le Moal

PCI: endpoint: Add linkdown notifier support

2023-06-23T20:05:20+00:00

Add support to notify the EPF device about the linkdown event from the EPC device. Link: https://lore.kernel.org/r/20230602114756.36586-5-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Damien Le Moal

PCI: endpoint: Return error if EPC is started/stopped multiple times

2023-06-23T20:05:11+00:00

When the EPC is started or stopped multiple times from configfs, just return -EALREADY. There is no need to call the EPC start/stop functions in those cases. Link: https://lore.kernel.org/r/20230602114756.36586-4-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Damien Le Moal

PCI: endpoint: Pass EPF device ID to the probe function

2023-06-23T20:05:03+00:00

Currently, the EPF probe function doesn't get the device ID argument needed to correctly identify the device table ID of the EPF device. When multiple entries are added to the "struct pci_epf_device_id" table, the probe function needs to identify the correct one. This is achieved by modifying the pci_epf_match_id() function to return the match ID pointer and passing it to the driver's probe function. pci_epf_device_match() function can return bool based on the return value of pci_epf_match_id(). Link: https://lore.kernel.org/r/20230602114756.36586-3-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Kishon Vijay Abraham I Reviewed-by: Damien Le Moal

PCI: endpoint: Add missing documentation about the MSI/MSI-X range

2023-06-23T20:04:46+00:00

Both pci_epc_raise_irq() and pci_epc_map_msi_irq() APIs expect the MSI/MSI-X vectors to start from 1 but it is not documented. Add the range info to the kdoc of the APIs to make it clear. Link: https://lore.kernel.org/r/20230602114756.36586-2-manivannan.sadhasivam@linaro.org Fixes: 5e8cb4033807 ("PCI: endpoint: Add EP core layer to enable EP controller and EP functions") Fixes: 87d5972e476f ("PCI: endpoint: Add pci_epc_ops to map MSI IRQ") Signed-off-by: Manivannan Sadhasivam Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Reviewed-by: Damien Le Moal