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-rw-r--r--include/linux/bpf.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 6e947cd91152..fa517ae604ad 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -316,7 +316,12 @@ enum bpf_type_flag {
*/
MEM_RDONLY = BIT(1 + BPF_BASE_TYPE_BITS),
- __BPF_TYPE_LAST_FLAG = MEM_RDONLY,
+ /* MEM was "allocated" from a different helper, and cannot be mixed
+ * with regular non-MEM_ALLOC'ed MEM types.
+ */
+ MEM_ALLOC = BIT(2 + BPF_BASE_TYPE_BITS),
+
+ __BPF_TYPE_LAST_FLAG = MEM_ALLOC,
};
/* Max number of base types. */
@@ -400,7 +405,7 @@ enum bpf_return_type {
RET_PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCKET,
RET_PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_TCP_SOCK,
RET_PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCK_COMMON,
- RET_PTR_TO_ALLOC_MEM_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_ALLOC_MEM,
+ RET_PTR_TO_ALLOC_MEM_OR_NULL = PTR_MAYBE_NULL | MEM_ALLOC | RET_PTR_TO_ALLOC_MEM,
RET_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_BTF_ID,
/* This must be the last entry. Its purpose is to ensure the enum is