user/sven/linux.git/net/core/devlink.c, branch v4.19.53

devlink: Add helper function for safely copy string param

2018-10-10T17:19:10Z

Devlink string param buffer is allocated at the size of DEVLINK_PARAM_MAX_STRING_VALUE. Add helper function which makes sure this size is not exceeded. Renamed DEVLINK_PARAM_MAX_STRING_VALUE to __DEVLINK_PARAM_MAX_STRING_VALUE to emphasize that it should be used by devlink only. The driver should use the helper function instead to verify it doesn't exceed the allowed length. Signed-off-by: Moshe Shemesh Acked-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Fix param cmode driverinit for string type

2018-10-10T17:19:10Z

Driverinit configuration mode value is held by devlink to enable the driver fetch the value after reload command. In case the param type is string devlink should copy the value from driver string buffer to devlink string buffer on devlink_param_driverinit_value_set() and vice-versa on devlink_param_driverinit_value_get(). Fixes: ec01aeb1803e ("devlink: Add support for get/set driverinit value") Signed-off-by: Moshe Shemesh Acked-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Fix param set handling for string type

2018-10-10T17:19:10Z

In case devlink param type is string, it needs to copy the string value it got from the input to devlink_param_value. Fixes: e3b7ca18ad7b ("devlink: Add param set command") Signed-off-by: Moshe Shemesh Signed-off-by: David S. Miller

devlink: double free in devlink_resource_fill()

2018-09-22T02:19:07Z

Smatch reports that devlink_dpipe_send_and_alloc_skb() frees the skb on error so this is a double free. We fixed a bunch of these bugs in commit 7fe4d6dcbcb4 ("devlink: Remove redundant free on error path") but we accidentally overlooked this one. Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller

devlink: Add generic parameters region_snapshot

2018-07-13T00:37:13Z

region_snapshot - When set enables capturing region snapshots Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Reviewed-by: Moshe Shemesh Signed-off-by: David S. Miller

devlink: Add support for region snapshot read command

2018-07-13T00:37:13Z

Add support for DEVLINK_CMD_REGION_READ_GET used for both reading and dumping region data. Read allows reading from a region specific address for given length. Dump allows reading the full region. If only snapshot ID is provided a snapshot dump will be done. If snapshot ID, Address and Length are provided a snapshot read will done. This is used for both snapshot access and will be used in the same way to access current data on the region. Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Add support for region snapshot delete command

2018-07-13T00:37:13Z

Add support for DEVLINK_CMD_REGION_DEL used for deleting a snapshot from a region. The snapshot ID is required. Also added notification support for NEW and DEL of snapshots. Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Extend the support querying for region snapshot IDs

2018-07-13T00:37:13Z

Extend the support for DEVLINK_CMD_REGION_GET command to also return the IDs of the snapshot currently present on the region. Each reply will include a nested snapshots attribute that can contain multiple snapshot attributes each with an ID. Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Add support for region get command

2018-07-13T00:37:13Z

Add support for DEVLINK_CMD_REGION_GET command which is used for querying for the supported DEV/REGION values of devlink devices. The support is both for doit and dumpit. Reply includes: BUS_NAME, DEVICE_NAME, REGION_NAME, REGION_SIZE Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Add support for creating region snapshots

2018-07-13T00:37:13Z

Each device address region can store multiple snapshots, each snapshot is identified using a different numerical ID. This ID is used when deleting a snapshot or showing an address region specific snapshot. This patch exposes a callback to add a new snapshot to an address region. The snapshot will be deleted using the destructor function when destroying a region or when a snapshot delete command from devlink user tool. Signed-off-by: Alex Vesker Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller