Hi Greg, This patch series suppresses a lockdep complaint about recursive locking that is triggered by switching USB roles. Please consider this patch series for the next merge window. Thanks, Bart. Changes compared to v1: - Added two patches. One that combines the two mutex_init() definitions and another patch that introduces mutex_init_with_key(). - Changed patch 3/3 such that it uses mutex_init_with_key(). Added Amit's Signed-off-by. Bart Van Assche (3): locking/mutex: Define mutex_init() once locking/mutex: Introduce mutex_init_with_key() usb: roles: Fix a false positive recursive locking complaint drivers/usb/roles/class.c | 6 +++++- include/linux/mutex.h | 19 ++++++++++++------- 2 files changed, 17 insertions(+), 8 deletions(-)