From: David S. Miller Date: Mon, 21 Mar 2022 14:11:38 +0000 (+0000) Subject: Merge branch 'devlink-locking' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ca4f3f187b0885906ebac1abbf26545b5c514fba;p=linux.git Merge branch 'devlink-locking' Jakub Kicinski says: ==================== devlink: hold the instance lock in eswitch callbacks Series number 2 in the effort to hold the devlink instance lock in call driver callbacks. We have the following drivers using this API: - bnxt, nfp, netdevsim - their own locking is removed / simplified by this series; all of them needed a lock to protect from changes to the number of VFs while switching modes, now the VF config bus callback takes the devlink instance lock via devl_lock(); - ice - appears not to allow changing modes while SR-IOV enabled, so nothing to do there; - liquidio - does not contain any locking; - octeontx2/af - is very special but at least doesn't have locking so doesn't get in the way either; - mlx5 has a wealth of locks - I chickened out and dropped the lock in the callbacks so that I can leave the driver be, for now. The last one is obviously not ideal, but I would prefer to transition the API already as it make take longer. v2: use a wrapper in mlx5 and extend the comment ==================== Signed-off-by: David S. Miller --- ca4f3f187b0885906ebac1abbf26545b5c514fba