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-rw-r--r--include/linux/btf.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/btf.h b/include/linux/btf.h
index 4214e76c9168..b2983706292f 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -76,6 +76,9 @@
#define KF_ITER_DESTROY (1 << 10) /* kfunc implements BPF iter destructor */
#define KF_RCU_PROTECTED (1 << 11) /* kfunc should be protected by rcu cs when they are invoked */
#define KF_FASTCALL (1 << 12) /* kfunc supports bpf_fastcall protocol */
+#define KF_ARENA_RET (1 << 13) /* kfunc returns an arena pointer */
+#define KF_ARENA_ARG1 (1 << 14) /* kfunc takes an arena pointer as its first argument */
+#define KF_ARENA_ARG2 (1 << 15) /* kfunc takes an arena pointer as its second argument */
/*
* Tag marking a kernel function as a kfunc. This is meant to minimize the
@@ -353,6 +356,11 @@ static inline bool btf_type_is_scalar(const struct btf_type *t)
return btf_type_is_int(t) || btf_type_is_enum(t);
}
+static inline bool btf_type_is_fwd(const struct btf_type *t)
+{
+ return BTF_INFO_KIND(t->info) == BTF_KIND_FWD;
+}
+
static inline bool btf_type_is_typedef(const struct btf_type *t)
{
return BTF_INFO_KIND(t->info) == BTF_KIND_TYPEDEF;
@@ -514,6 +522,7 @@ bool btf_param_match_suffix(const struct btf *btf,
const char *suffix);
int btf_ctx_arg_offset(const struct btf *btf, const struct btf_type *func_proto,
u32 arg_no);
+u32 btf_ctx_arg_idx(struct btf *btf, const struct btf_type *func_proto, int off);
struct bpf_verifier_log;