kernel.git/drivers/dpll/dpll_core.h, branch linux-6.18.y

dpll: add reference sync get/set

2025-06-27T23:38:02Z

Define function for reference sync pin registration and callback ops to set/get current feature state. Implement netlink handler to fill netlink messages with reference sync pin configuration of capable pins (pin-get). Implement netlink handler to call proper ops and configure reference sync pin state (pin-set). Reviewed-by: Przemek Kitszel Reviewed-by: Milena Olech Reviewed-by: Jiri Pirko Signed-off-by: Arkadiusz Kubalewski Link: https://patch.msgid.link/20250626135219.1769350-3-arkadiusz.kubalewski@intel.com Signed-off-by: Jakub Kicinski

dpll: remove documentation of rclk_dev_name

2025-06-18T01:53:37Z

Remove documentation of rclk_dev_name member of dpll_device which doesn't exist. Flagged by ./scripts/kernel-doc -none Introduced by commit 9431063ad323 ("dpll: core: Add DPLL framework base functions") Signed-off-by: Simon Horman Reviewed-by: Vadim Fedorenko Link: https://patch.msgid.link/20250616-dpll-member-v1-1-8c9e6b8e1fd4@kernel.org Signed-off-by: Jakub Kicinski

dpll: rely on rcu for netdev_dpll_pin()

2024-02-27T02:39:34Z

This fixes a possible UAF in if_nlmsg_size(), which can run without RTNL. Add rcu protection to "struct dpll_pin" Move netdev_dpll_pin() from netdevice.h to dpll.h to decrease name pollution. Note: This looks possible to no longer acquire RTNL in netdev_dpll_pin_assign() later in net-next. v2: do not force rcu_read_lock() in rtnl_dpll_pin_size() (Jiri Pirko) Fixes: 5f1842692880 ("netdev: expose DPLL pin handle for netdevice") Signed-off-by: Eric Dumazet Cc: Arkadiusz Kubalewski Cc: Vadim Fedorenko Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240223123208.3543319-1-edumazet@google.com Signed-off-by: Jakub Kicinski

dpll: fix pin dump crash for rebound module

2024-01-22T11:01:11Z

When a kernel module is unbound but the pin resources were not entirely freed (other kernel module instance of the same PCI device have had kept the reference to that pin), and kernel module is again bound, the pin properties would not be updated (the properties are only assigned when memory for the pin is allocated), prop pointer still points to the kernel module memory of the kernel module which was deallocated on the unbind. If the pin dump is invoked in this state, the result is a kernel crash. Prevent the crash by storing persistent pin properties in dpll subsystem, copy the content from the kernel module when pin is allocated, instead of using memory of the kernel module. Fixes: 9431063ad323 ("dpll: core: Add DPLL framework base functions") Fixes: 9d71b54b65b1 ("dpll: netlink: Add DPLL framework base functions") Reviewed-by: Jan Glaza Reviewed-by: Przemek Kitszel Signed-off-by: Arkadiusz Kubalewski Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

dpll: core: Add DPLL framework base functions

2023-09-17T10:50:20Z

DPLL framework is used to represent and configure DPLL devices in systems. Each device that has DPLL and can configure inputs and outputs can use this framework. Implement core framework functions for further interactions with device drivers implementing dpll subsystem, as well as for interactions of DPLL netlink framework part with the subsystem itself. Co-developed-by: Milena Olech Signed-off-by: Milena Olech Co-developed-by: Michal Michalik Signed-off-by: Michal Michalik Signed-off-by: Vadim Fedorenko Co-developed-by: Arkadiusz Kubalewski Signed-off-by: Arkadiusz Kubalewski Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller