net: Add framework to allow sending packets with customized CRC.

This is useful for testing RX handling of frames with bad
CRCs.

Requires driver support to actually put the packet on the
wire properly.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h
index e7bbfcee5b99..ec4554e7b04b 100644
--- a/arch/h8300/include/asm/socket.h
+++ b/arch/h8300/include/asm/socket.h
@@ -66,4 +66,7 @@
 #define SCM_WIFI_STATUS         SO_WIFI_STATUS
 #define SO_PEEK_OFF             42
 
+/* Instruct lower device to use last 4-bytes of skb data as FCS */
+#define SO_NOFCS                43
+
 #endif /* _ASM_SOCKET_H */