gro_cells: move to net/core/gro_cells.c
We have many gro cells users, so lets move the code to avoid
duplication.
This creates a CONFIG_GRO_CELLS option.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/Makefile b/net/core/Makefile
index f6761b6..79f9479 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -28,3 +28,4 @@
obj-$(CONFIG_DST_CACHE) += dst_cache.o
obj-$(CONFIG_HWBM) += hwbm.o
obj-$(CONFIG_NET_DEVLINK) += devlink.o
+obj-$(CONFIG_GRO_CELLS) += gro_cells.o