commit 5854a09b4957 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper") does not
include "linux/stddef.h" header file, and tools headers update linux/in.h copy,
BPF prog fails to be compiled:
CLNG-BPF [test_maps] bpf_flow.bpf.o
CLNG-BPF [test_maps] cgroup_skb_sk_lookup_kern.bpf.o
In file included from progs/cgroup_skb_sk_lookup_kern.c:9:
/root/linux/tools/include/uapi/linux/in.h:199:3: error: type name requires a specifier or qualifier
__DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
^
/root/linux/tools/include/uapi/linux/in.h:199:32: error: type specifier missing, defaults to 'int' [-Werror,-Wimplicit-int]
__DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
^
2 errors generated.
To maintain consistency, add missing header file to kernel.
Fixes: 5854a09b4957 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper")
Signed-off-by: Yang Jihong <yangjihong1@xxxxxxxxxx>
---
include/uapi/linux/in.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h
index f243ce665f74..79015665daf1 100644
--- a/include/uapi/linux/in.h
+++ b/include/uapi/linux/in.h
@@ -22,6 +22,7 @@
#include <linux/types.h>
#include <linux/libc-compat.h>
#include <linux/socket.h>
+#include <linux/stddef.h>
#if __UAPI_DEF_IN_IPPROTO
/* Standard well-defined IP protocols. */
--
2.30.GIT
