Commit 874a333f authored by Alex Elder's avatar Alex Elder Committed by David S. Miller
Browse files

net: qualcomm: rmnet: simplify rmnet_map_get_csum_field() 



The checksum fields of the TCP and UDP header structures already
have type __sum16.  We don't support any other protocol headers, so
we can simplify rmnet_map_get_csum_field(), getting rid of the local
variable entirely and just returning the appropriate address.

Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1d257f45

drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c

+5 −15
Original line number Diff line number Diff line
@@ -19,23 +19,13 @@ 
static __sum16 *rmnet_map_get_csum_field(unsigned char protocol,

					 const void *txporthdr)

{

	__sum16 *check = NULL;

	if (protocol == IPPROTO_TCP)

		return &((struct tcphdr *)txporthdr)->check;



	switch (protocol) {

	case IPPROTO_TCP:

		check = &(((struct tcphdr *)txporthdr)->check);

		break;



	case IPPROTO_UDP:

		check = &(((struct udphdr *)txporthdr)->check);

		break;

	if (protocol == IPPROTO_UDP)

		return &((struct udphdr *)txporthdr)->check;



	default:

		check = NULL;

		break;

	}



	return check;

	return NULL;

}



static int