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Diffstat (limited to 'include/linux/filter.h')
-rw-r--r--include/linux/filter.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index a0934e6c9bab..e4eb2546339a 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -57,6 +57,8 @@ struct bpf_prog_aux;
/* BPF program can access up to 512 bytes of stack space. */
#define MAX_BPF_STACK 512
+#define BPF_TAG_SIZE 8
+
/* Helper macros for filter block array initializers. */
/* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */
@@ -408,7 +410,7 @@ struct bpf_prog {
kmemcheck_bitfield_end(meta);
enum bpf_prog_type type; /* Type of BPF program */
u32 len; /* Number of filter blocks */
- u32 digest[SHA_DIGEST_WORDS]; /* Program digest */
+ u8 tag[BPF_TAG_SIZE];
struct bpf_prog_aux *aux; /* Auxiliary fields */
struct sock_fprog_kern *orig_prog; /* Original BPF program */
unsigned int (*bpf_func)(const void *ctx,
@@ -519,7 +521,7 @@ static inline u32 bpf_prog_insn_size(const struct bpf_prog *prog)
return prog->len * sizeof(struct bpf_insn);
}
-static inline u32 bpf_prog_digest_scratch_size(const struct bpf_prog *prog)
+static inline u32 bpf_prog_tag_scratch_size(const struct bpf_prog *prog)
{
return round_up(bpf_prog_insn_size(prog) +
sizeof(__be64) + 1, SHA_MESSAGE_BYTES);