Hi all,

After merging the net-next tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from include/net/dsa.h:23,
                 from net/ethernet/eth.c:59:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/dsa.h:23,
                 from net/core/flow_dissector.c:8:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/dsa.h:23,
                 from net/core/dev.c:102:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/vxlan.h:9,
                 from drivers/net/ethernet/emulex/benet/be_main.c:22:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/vxlan.h:9,
                 from drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:37:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/vxlan.h:9,
                 from drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:50:
include/net/switchdev.h:410:1: error: expected identifier or '(' before '{' token
  410 | {
      | ^
include/net/switchdev.h:399:1: warning: 'switchdev_handle_fdb_del_to_device' declared 'static' but never defined [-Wunused-function]
  399 | switchdev_handle_fdb_del_to_device(struct net_device *dev,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Caused by commit

  8ca07176ab00 ("net: switchdev: introduce a fanout helper for SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE")

I have used the net-next tree from next-20210720 for today.

-- 
Cheers,
Stephen Rothwell