@@ -246,16 +246,19 @@ struct tc_u32_key {
};
struct tc_u32_sel {
- unsigned char flags;
- unsigned char offshift;
- unsigned char nkeys;
-
- __be16 offmask;
- __u16 off;
- short offoff;
-
- short hoff;
- __be32 hmask;
+ /* New members MUST be added within the __struct_group() macro below. */
+ __struct_group(tc_u32_sel_hdr, hdr, /* no attrs */,
+ unsigned char flags;
+ unsigned char offshift;
+ unsigned char nkeys;
+
+ __be16 offmask;
+ __u16 off;
+ short offoff;
+
+ short hoff;
+ __be32 hmask;
+ );
struct tc_u32_key keys[];
};
Use the `__struct_group()` helper to create a new tagged `struct tc_u32_sel_hdr`. This structure groups together all the members of the flexible `struct tc_u32_sel` except the flexible array. As a result, the array is effectively separated from the rest of the members without modifying the memory layout of the flexible structure. This new tagged struct will be used to fix problematic declarations of middle-flex-arrays in composite structs[1]. [1] https://git.kernel.org/linus/d88cabfd9abc Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> --- include/uapi/linux/pkt_cls.h | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)