iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: qualcomm: rmnet: simplify rmnet_map_get_csum_field()

Browse Source 
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: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Elder 2021-06-11 14:05:25 -05:00 committed by David S. Miller
parent 1d257f45ef
commit 874a333f74
1 changed files with 5 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
View File

@ -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;
if (protocol == IPPROTO_UDP)
return &((struct udphdr *)txporthdr)->check;
case IPPROTO_UDP:
check = &(((struct udphdr *)txporthdr)->check);
break;
default:
check = NULL;
break;
}
return check;
return NULL;
}
static int