Erick Archer 86348d2176 net: prestera: Add flex arrays to some structs ... The "struct prestera_msg_vtcam_rule_add_req" uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "prestera_msg_acl_action actions_msg". The "struct prestera_msg_flood_domain_ports_set_req" also uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "prestera_msg_acl_action actions_msg". So, use the preferred way in the kernel declaring flexible arrays [1]. At the same time, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). In this case, it is important to note that the attribute used is specifically __counted_by_le since the counters are of type __le32. The logic does not need to change since the counters for the flexible arrays are asigned before any access to the arrays. The order in which the structure prestera_msg_vtcam_rule_add_req and the structure prestera_msg_flood_domain_ports_set_req are defined must be changed to avoid incomplete type errors. Also, avoid the open-coded arithmetic in memory allocator functions [2] using the "struct_size" macro. Moreover, the new structure members also allow us to avoid the open- coded arithmetic on pointers. So, take advantage of this refactoring accordingly. This code was detected with the help of Coccinelle, and audited and modified manually. Link: https://www.kernel.org/doc/html/next/process/deprecated.html#zero-length-and-one-element-arrays [1] Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [2] Signed-off-by: Erick Archer <erick.archer@outlook.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/AS8PR02MB7237E8469568A59795F1F0408BE12@AS8PR02MB7237.eurprd02.prod.outlook.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-05-13 17:46:23 -07:00
..
Kconfig
Makefile
prestera.h
prestera_acl.c
prestera_acl.h
prestera_counter.c
prestera_counter.h
prestera_devlink.c
prestera_devlink.h
prestera_dsa.c
prestera_dsa.h
prestera_ethtool.c
prestera_ethtool.h
prestera_flow.c
prestera_flow.h
prestera_flower.c
prestera_flower.h
prestera_hw.c	net: prestera: Add flex arrays to some structs	2024-05-13 17:46:23 -07:00
prestera_hw.h
prestera_main.c	net: annotate writes on dev->mtu from ndo_change_mtu()	2024-05-07 16:19:14 -07:00
prestera_matchall.c
prestera_matchall.h
prestera_pci.c
prestera_router.c
prestera_router_hw.c
prestera_router_hw.h
prestera_rxtx.c
prestera_rxtx.h
prestera_span.c
prestera_span.h
prestera_switchdev.c
prestera_switchdev.h