Currently mtty sample driver uses mdev state and UUID in convoluated way to generate an interrupt. It uses several translations from mdev_state to mdev_device to mdev uuid. After which it does linear search of long uuid comparision to find out mdev_state in mtty_trigger_interrupt(). mdev_state is already available while generating interrupt from which all such translations are done to reach back to mdev_state. This translations are done during interrupt generation path. This is unnecessary and reduandant. Hence, Patch-1 simplifies mtty sample driver to directly use mdev_state. Patch-2, Since no production driver uses mdev_uuid() and mdev's name (derived from UUID) is already available using core kernel dev_name(), this patch simplifies and removes redandant mdev_uuid() exported symbol. Parav Pandit (2): vfio-mdev/mtty: Simplify interrupt generation vfio/mdev: Removed unused and redundant API for mdev UUID drivers/vfio/mdev/mdev_core.c | 6 ------ include/linux/mdev.h | 1 - samples/vfio-mdev/mtty.c | 39 +++++++---------------------------- 3 files changed, 8 insertions(+), 38 deletions(-) -- 2.21.0.777.g83232e3864
