sysctl: add and use base directory declarer and registration helper

[linux-block.git] / include / linux / bpf.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 6e947cd91152e1d75c39051a2f82815a6cbae4c0..fa517ae604ad2f2d3603b4103d69ace80f3ac584 100644 (file)
--- 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