From: Alexei Starovoitov <ast@kernel.org>
Date: Tue, 19 May 2020 11:39:53 -0700
Subject: tools/bpf: sync bpf.h
Patch-mainline: v5.8-rc1
Git-commit: fb53d3b63743585ce918094d6109a3865fa66e5f
References: bsc#1177028
Sync tools/include/uapi/linux/bpf.h from include/uapi.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Gary Lin <glin@suse.com>
---
tools/include/uapi/linux/bpf.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -73,7 +73,7 @@ struct bpf_insn {
/* Key of an a BPF_MAP_TYPE_LPM_TRIE entry */
struct bpf_lpm_trie_key {
__u32 prefixlen; /* up to 32 for AF_INET, 128 for AF_INET6 */
- __u8 data[]; /* Arbitrary size */
+ __u8 data[0]; /* Arbitrary size */
};
struct bpf_cgroup_storage_key {
@@ -2019,8 +2019,8 @@ union bpf_attr {
* int bpf_xdp_adjust_tail(struct xdp_buff *xdp_md, int delta)
* Description
* Adjust (move) *xdp_md*\ **->data_end** by *delta* bytes. It is
- * only possible to shrink the packet as of this writing,
- * therefore *delta* must be a negative integer.
+ * possible to both shrink and grow the packet tail.
+ * Shrink done via *delta* being a negative integer.
*
* A call to this helper is susceptible to change the underlying
* packet buffer. Therefore, at load time, all checks on pointers