proto: reduce size of proto_desc structure

This will need an additional field. We can compress state
here to avoid further size increase.

Signed-off-by: Florian Westphal <fw@strlen.de>

diff --git a/include/proto.h b/include/proto.h
index 6ef332c3966f093255101a626108e23f6b0eb7da..667650d67c97dd3c00f808804ffd6b1554abc888 100644 (file)
--- a/include/proto.h
+++ b/include/proto.h
@@ -39,8 +39,8 @@ struct proto_hdr_template {
        const struct datatype           *dtype;
        uint16_t                        offset;
        uint16_t                        len;
-       enum byteorder                  byteorder;
-       enum nft_meta_keys              meta_key;
+       enum byteorder                  byteorder:8;
+       enum nft_meta_keys              meta_key:8;
 };
 
 #define PROTO_HDR_TEMPLATE(__token, __dtype,  __byteorder, __offset, __len)\
@@ -101,11 +101,11 @@ enum proto_desc_id {
  */
 struct proto_desc {
        const char                      *name;
-       enum proto_desc_id              id;
-       enum proto_bases                base;
-       enum nft_payload_csum_types     checksum_type;
-       unsigned int                    checksum_key;
-       unsigned int                    protocol_key;
+       enum proto_desc_id              id:8;
+       enum proto_bases                base:8;
+       enum nft_payload_csum_types     checksum_type:8;
+       uint16_t                        checksum_key;
+       uint16_t                        protocol_key;
        unsigned int                    length;
        struct {
                unsigned int                    num;