Commit 46dd90fe authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by Jakub Kicinski

nfp: Use static_assert() to check struct sizes

Commit d88cabfd ("nfp: Avoid -Wflex-array-member-not-at-end
warnings") introduced tagged `struct nfp_dump_tl_hdr`. We want
to ensure that when new members need to be added to the flexible
structure, they are always included within this tagged struct.

So, we use `static_assert()` to ensure that the memory layout for
both the flexible structure and the tagged struct is the same after
any changes.
Signed-off-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/ZrVB43Hen0H5WQFP@cuteSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent e2d0fadd
...@@ -41,6 +41,8 @@ struct nfp_dump_tl { ...@@ -41,6 +41,8 @@ struct nfp_dump_tl {
); );
char data[]; char data[];
}; };
static_assert(offsetof(struct nfp_dump_tl, data) == sizeof(struct nfp_dump_tl_hdr),
"struct member likely outside of struct_group_tagged()");
/* NFP CPP parameters */ /* NFP CPP parameters */
struct nfp_dumpspec_cpp_isl_id { struct nfp_dumpspec_cpp_isl_id {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment