From: Ioana Ciornei <ioana.ciornei@nxp.com>
Date: Wed, 22 Apr 2020 15:05:09 +0300
Subject: xdp: export the DEV_MAP_BULK_SIZE macro
Patch-mainline: v5.8-rc1
Git-commit: 788f87ac608c518b74f338acb95f197cf6e3d0c4
References: bsc#1177028

Export the DEV_MAP_BULK_SIZE macro to the header file so that drivers
can directly use it as the maximum number of xdp_frames received in the
.ndo_xdp_xmit() callback.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Gary Lin <glin@suse.com>
---
 include/net/xdp.h   |    2 ++
 kernel/bpf/devmap.c |    1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -181,4 +181,6 @@ bool xdp_attachment_flags_ok(struct xdp_
 void xdp_attachment_setup(struct xdp_attachment_info *info,
 			  struct netdev_bpf *bpf);
 
+#define DEV_MAP_BULK_SIZE 16
+
 #endif /* __LINUX_NET_XDP_H__ */
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -52,7 +52,6 @@
 #define DEV_CREATE_FLAG_MASK \
 	(BPF_F_NUMA_NODE | BPF_F_RDONLY | BPF_F_WRONLY)
 
-#define DEV_MAP_BULK_SIZE 16
 struct xdp_dev_bulk_queue {
 	struct xdp_frame *q[DEV_MAP_BULK_SIZE];
 	struct list_head flush_node;