linux-uconsole/drivers/net/netdevsim
Jacob Keller 22ec3d232f devlink: check flash_update parameter support in net core
When implementing .flash_update, drivers which do not support
per-component update are manually checking the component parameter to
verify that it is NULL. Without this check, the driver might accept an
update request with a component specified even though it will not honor
such a request.

Instead of having each driver check this, move the logic into
net/core/devlink.c, and use a new `supported_flash_update_params` field
in the devlink_ops. Drivers which will support per-component update must
now specify this by setting DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT in
the supported_flash_update_params in their devlink_ops.

This helps ensure that drivers do not forget to check for a NULL
component if they do not support per-component update. This also enables
a slightly better error message by enabling the core stack to set the
netlink bad attribute message to indicate precisely the unsupported
attribute in the message.

Going forward, any new additional parameter to flash update will require
a bit in the supported_flash_update_params bitfield.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Bin Luo <luobin9@huawei.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Danielle Ratson <danieller@mellanox.com>
Cc: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25 17:20:57 -07:00
..
bpf.c bpf, xdp: Remove XDP_QUERY_PROG and XDP_QUERY_PROG_HW XDP commands 2020-07-25 20:37:02 -07:00
bus.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dev.c devlink: check flash_update parameter support in net core 2020-09-25 17:20:57 -07:00
ethtool.c netdevsim: add pause frame stats 2020-09-15 13:26:28 -07:00
fib.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
health.c devlink: Implicitly set auto recover flag when registering health reporter 2020-03-30 11:17:34 -07:00
ipsec.c net: netdevsim: Use scnprintf() for avoiding potential buffer overflow 2020-03-15 17:06:22 -07:00
Makefile netdevsim: add pause frame stats 2020-09-15 13:26:28 -07:00
netdev.c netdevsim: add pause frame stats 2020-09-15 13:26:28 -07:00
netdevsim.h netdevsim: add pause frame stats 2020-09-15 13:26:28 -07:00
udp_tunnels.c netdevsim: add UDP tunnel port offload support 2020-07-10 13:54:00 -07:00