On Wed, 22 Jul 2020 16:57:00 +1000, Oliver O'Halloran wrote:

Add a helper to go from a pci_bus structure to the pnv_phb that hosts that
bus. There's a lot of instances of the following pattern:

	struct pci_controller *hose = pci_bus_to_host(pdev->bus);
	struct pnv_phb *phb = hose->private_data;

Without any other uses of the pci_controller inside the function. This is
hard to read since it requires you to memorise the contents of the
private data fields and kind of error prone since it involves blindly
assigning a void pointer. Add a helper to make it more concise and
explicit.

Applied to powerpc/next.

[01/16] powerpc/powernv/pci: Add pci_bus_to_pnvhb() helper
        https://git.kernel.org/powerpc/c/5609ffddd19dd52019d78b197e86b0331aeef8ae
[02/16] powerpc/powernv/pci: Always tear down DMA windows on PE release
        https://git.kernel.org/powerpc/c/7a52ffabe867c0d93e47af113e5107340974047a
[03/16] powerpc/powernv/pci: Add explicit tracking of the DMA setup state
        https://git.kernel.org/powerpc/c/01e12629af4e0e4864ed4d83e07783d7cb5b06be
[04/16] powerpc/powernv/pci: Initialise M64 for IODA1 as a 1-1 window
        https://git.kernel.org/powerpc/c/369633654fcb9639cd4cd0e1a448ffde3533d776
[05/16] powerpc/powernv/sriov: Move SR-IOV into a separate file
        https://git.kernel.org/powerpc/c/37b59ef08c546c6f54cdc52eed749f494619a102
[06/16] powerpc/powernv/sriov: Explain how SR-IOV works on PowerNV
        https://git.kernel.org/powerpc/c/ff79e11af0979b25ecb38e4c843779d4a759a4e2
[07/16] powerpc/powernv/sriov: Rename truncate_iov
        https://git.kernel.org/powerpc/c/fac248f8119170e3f8f54900985498ff6ee560bf
[08/16] powerpc/powernv/sriov: Simplify used window tracking
        https://git.kernel.org/powerpc/c/ad9add529d99d195195c27abf99e42d4965d35e2
[09/16] powerpc/powernv/sriov: Factor out M64 BAR setup
        https://git.kernel.org/powerpc/c/a610d35cc8780e781321ea8d002d5fef8484bf59
[10/16] powerpc/powernv/pci: Refactor pnv_ioda_alloc_pe()
        https://git.kernel.org/powerpc/c/a4bc676ed5c3f53781cc342b73097eb7e8d43fa5
[11/16] powerpc/powernv/sriov: Drop iov->pe_num_map[]
        https://git.kernel.org/powerpc/c/d29a2488d2c020032fdb1fe052347a6021e3591d
[12/16] powerpc/powernv/sriov: De-indent setup and teardown
        https://git.kernel.org/powerpc/c/052da31d45fc71238ea8bed7e9a84648a1ee0bf3
[13/16] powerpc/powernv/sriov: Move M64 BAR allocation into a helper
        https://git.kernel.org/powerpc/c/39efc03e3ee8f41909b7542be70b4061b38ca277
[14/16] powerpc/powernv/sriov: Refactor M64 BAR setup
        https://git.kernel.org/powerpc/c/a0be516f8160fdb4836237cba037229e88a1de7d
[15/16] powerpc/powernv/sriov: Make single PE mode a per-BAR setting
        https://git.kernel.org/powerpc/c/4c51f3e1e8702cbd0e53159fc3d1f54c20c70574
[16/16] powerpc/powernv/sriov: Remove vfs_expanded
        https://git.kernel.org/powerpc/c/84d8505ed1dafb2e62d49fca5e7aa7d96cfcec49

cheers