The first patch in this series introduces the following 4 helper functions to the PCI core:
* pci_request_mem_regions() * pci_request_io_regions() * pci_release_mem_regions() * pci_release_io_regions() which encapsulate the request and release of a PCI device's memory or I/O bars. The subsequent patches convert the drivers, which use the pci_request_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM), name); and similar pattern to use the new interface. This was suggested by Christoph Hellwig in http://lists.infradead.org/pipermail/linux-nvme/2016-May/004570.html and tested on kernel v4.6 with NVMe. The conversion of the drivers has been performed by the following coccinelle spatch: // IORESOURCE_MEM @@ expression err, pdev, name; @@ - err = pci_request_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM), name); + err = pci_request_mem_regions(pdev, name); @@ expression pdev; @@ - pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM)); + pci_release_mem_regions(pdev); @@ expression err, pdev, name; identifier bars; @@ - bars = pci_select_bars(pdev, IORESOURCE_MEM); ... - err = pci_request_selected_regions(pdev, bars, name); + err = pci_request_mem_regions(pdev, name); @@ expression pdev; identifier bars; @@ - bars = pci_select_bars(pdev, IORESOURCE_MEM); ... - pci_release_selected_regions(pdev, bars); + pci_release_mem_regions(pdev); // IORESOURCE_IO @@ expression err, pdev, name; @@ - err = pci_request_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_IO), name); + err = pci_request_io_regions(pdev, name); @@ expression pdev; @@ - pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_IO)); + pci_release_io_regions(pdev); @@ expression err, pdev, name; identifier bars; @@ - bars = pci_select_bars(pdev, IORESOURCE_IO); ... - err = pci_request_selected_regions(pdev, bars, name); + err = pci_request_io_regions(pdev, name); @@ expression pdev; identifier bars; @@ - bars = pci_select_bars(pdev, IORESOURCE_IO); ... - pci_release_selected_regions(pdev, bars); + pci_release_io_regions(pdev); Johannes Thumshirn (5): PCI: Add helpers to request/release memory and I/O regions NVMe: Use pci_(request|release)_mem_regions scsi: Use pci_(request|release)_mem_regions GenWQE: Use pci_(request|release)_mem_regions ethernet: Use pci_(request|release)_mem_regions drivers/misc/genwqe/card_base.c | 13 +++++------- drivers/net/ethernet/atheros/alx/main.c | 12 +++++------ drivers/net/ethernet/intel/e1000e/netdev.c | 6 ++---- drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 11 +++------- drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++------ drivers/net/ethernet/intel/igb/igb_main.c | 10 +++------ drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 +++------ drivers/nvme/host/pci.c | 10 +++------ drivers/scsi/lpfc/lpfc_init.c | 5 +---- include/linux/pci.h | 29 +++++++++++++++++++++++++++ 10 files changed, 57 insertions(+), 57 deletions(-) Cc: Christoph Hellwig <h...@infradead.org> Cc: Keith Busch <keith.bu...@intel.com> Cc: Jens Axboe <ax...@fb.com> Cc: linux-n...@lists.infradead.org Cc: James Smart <james.sm...@avagotech.com> Cc: Dick Kennedy <dick.kenn...@avagotech.com> Cc: "James E.J. Bottomley" <j...@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.peter...@oracle.com> Cc: linux-s...@vger.kernel.org Cc: linux-ker...@vger.kernel.org Cc: Frank Haverkamp <ha...@linux.vnet.ibm.com> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> Cc: Jay Cliburn <jclib...@gmail.com> Cc: Chris Snook <chris.sn...@gmail.com> Cc: Jeff Kirsher <jeffrey.t.kirs...@intel.com> Cc: David S. Miller <da...@davemloft.net> Cc: netdev@vger.kernel.org Cc: linux-ker...@vger.kernel.org Cc: intel-wired-...@lists.osuosl.org -- 1.8.5.6