diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2024-10-09 11:09:47 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-10-10 18:30:21 +0300 |
| commit | 13d68a16430312fc21990f48326366eb73891202 (patch) | |
| tree | ac5846331f7e46d70dbfb2dfcbfd26c3e728003e /include/linux | |
| parent | 80c549cd1ab0241a7af262690a0ff9991fc74ec5 (diff) | |
| download | linux-13d68a16430312fc21990f48326366eb73891202.tar.xz | |
genetlink: extend info user-storage to match NL cb ctx
This allows a more uniform implementation of non-dump and dump
operations, and will be used later in the series to avoid some
per-operation allocation.
Additionally rename the NL_ASSERT_DUMP_CTX_FITS macro, to
fit a more extended usage.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/1130cc2896626b84587a2a5f96a5c6829638f4da.1728460186.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netlink.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h index b332c2048c75..a3ca198a3a9e 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -34,6 +34,7 @@ struct netlink_skb_parms { #define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb)) #define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds) +#define NETLINK_CTX_SIZE 48 void netlink_table_grab(void); @@ -293,7 +294,7 @@ struct netlink_callback { int flags; bool strict_check; union { - u8 ctx[48]; + u8 ctx[NETLINK_CTX_SIZE]; /* args is deprecated. Cast a struct over ctx instead * for proper type safety. @@ -302,7 +303,7 @@ struct netlink_callback { }; }; -#define NL_ASSERT_DUMP_CTX_FITS(type_name) \ +#define NL_ASSERT_CTX_FITS(type_name) \ BUILD_BUG_ON(sizeof(type_name) > \ sizeof_field(struct netlink_callback, ctx)) |