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    Subject[PATCH v2 4/6] mdev: Introduce an API mdev_alias
    Date
    Introduce an API mdev_alias() to provide access to optionally generated
    alias.

    Signed-off-by: Parav Pandit <parav@mellanox.com>
    ---
    drivers/vfio/mdev/mdev_core.c | 12 ++++++++++++
    include/linux/mdev.h | 1 +
    2 files changed, 13 insertions(+)

    diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
    index c9bf2ac362b9..5399ed6f1612 100644
    --- a/drivers/vfio/mdev/mdev_core.c
    +++ b/drivers/vfio/mdev/mdev_core.c
    @@ -517,6 +517,18 @@ struct device *mdev_get_iommu_device(struct device *dev)
    }
    EXPORT_SYMBOL(mdev_get_iommu_device);

    +/**
    + * mdev_alias: Return alias string of a mdev device
    + * @mdev: Pointer to the mdev device
    + * mdev_alias() returns alias string of a mdev device if alias is present,
    + * returns NULL otherwise.
    + */
    +const char *mdev_alias(struct mdev_device *mdev)
    +{
    + return mdev->alias;
    +}
    +EXPORT_SYMBOL(mdev_alias);
    +
    static int __init mdev_init(void)
    {
    int ret;
    diff --git a/include/linux/mdev.h b/include/linux/mdev.h
    index f036fe9854ee..6da82213bc4e 100644
    --- a/include/linux/mdev.h
    +++ b/include/linux/mdev.h
    @@ -148,5 +148,6 @@ void mdev_unregister_driver(struct mdev_driver *drv);
    struct device *mdev_parent_dev(struct mdev_device *mdev);
    struct device *mdev_dev(struct mdev_device *mdev);
    struct mdev_device *mdev_from_dev(struct device *dev);
    +const char *mdev_alias(struct mdev_device *mdev);

    #endif /* MDEV_H */
    --
    2.19.2
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