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    Subject[tip: irq/msi] genirq/msi: Consolidate MSI descriptor data
    The following commit has been merged into the irq/msi branch of tip:

    Commit-ID: 20c6d424cfe641659c9a025db8a8608701b27246
    Gitweb: https://git.kernel.org/tip/20c6d424cfe641659c9a025db8a8608701b27246
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Fri, 10 Dec 2021 23:19:12 +01:00
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitterDate: Thu, 16 Dec 2021 22:16:40 +01:00

    genirq/msi: Consolidate MSI descriptor data

    All non PCI/MSI usage variants have data structures in struct msi_desc with
    only one member: xxx_index. PCI/MSI has a entry_nr member.

    Add a common msi_index member to struct msi_desc so all implementations can
    share it which allows further consolidation.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Tested-by: Michael Kelley <mikelley@microsoft.com>
    Tested-by: Nishanth Menon <nm@ti.com>
    Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
    Link: https://lore.kernel.org/r/20211210221814.350967317@linutronix.de

    ---
    include/linux/msi.h | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/include/linux/msi.h b/include/linux/msi.h
    index cdf0d09..ee8fe49 100644
    --- a/include/linux/msi.h
    +++ b/include/linux/msi.h
    @@ -143,6 +143,7 @@ struct ti_sci_inta_msi_desc {
    * address or data changes
    * @write_msi_msg_data: Data parameter for the callback.
    *
    + * @msi_index: Index of the msi descriptor
    * @pci: [PCI] PCI speficic msi descriptor data
    * @platform: [platform] Platform device specific msi descriptor data
    * @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data
    @@ -163,6 +164,7 @@ struct msi_desc {
    void (*write_msi_msg)(struct msi_desc *entry, void *data);
    void *write_msi_msg_data;

    + u16 msi_index;
    union {
    struct pci_msi_desc pci;
    struct platform_msi_desc platform;
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