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Slight optimisation. Don't do the same calculation twice.

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This commit is contained in:
Julian Elischer 1998-07-09 02:00:02 +00:00
parent bcbd6c6fdd
commit 4ec1acf055
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=37521
1 changed files with 14 additions and 17 deletions
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31
sys/netatalk/ddp_output.c
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@ -151,6 +151,19 @@ printf( "ddp_route: oops\n" );
return( EINVAL );
}
/*
* if the destination address is on a directly attached node use that,
* else use the official gateway.
*/
if ( ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) >=
ntohs( aa->aa_firstnet ) &&
ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) <=
ntohs( aa->aa_lastnet )) {
gate = *satosat( &ro->ro_dst );
} else {
gate = *satosat( ro->ro_rt->rt_gateway );
}
/*
* There are several places in the kernel where data is added to
* an mbuf without ensuring that the mbuf pointer is aligned.
@ -172,23 +185,7 @@ printf( "ddp_route: oops\n" );
elh = mtod( m, struct elaphdr *);
elh->el_snode = satosat( &aa->aa_addr )->sat_addr.s_node;
elh->el_type = ELAP_DDPEXTEND;
if ( ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) >=
ntohs( aa->aa_firstnet ) &&
ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) <=
ntohs( aa->aa_lastnet )) {
elh->el_dnode = satosat( &ro->ro_dst )->sat_addr.s_node;
} else {
elh->el_dnode = satosat( ro->ro_rt->rt_gateway )->sat_addr.s_node;
}
}
if ( ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) >=
ntohs( aa->aa_firstnet ) &&
ntohs( satosat( &ro->ro_dst )->sat_addr.s_net ) <=
ntohs( aa->aa_lastnet )) {
gate = *satosat( &ro->ro_dst );
} else {
gate = *satosat( ro->ro_rt->rt_gateway );
elh->el_dnode = gate->sat_addr.s_node;
}
ro->ro_rt->rt_use++;