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sctp: remove extern from stream sched

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Now each stream sched ops is defined in different .c file and
added into the global ops in another .c file, it uses extern
to make this work.

However extern is not good coding style to get them in and
even make C=2 reports errors for this.

This patch adds sctp_sched_ops_xxx_init for each stream sched
ops in their .c file, then get them into the global ops by
calling them when initializing sctp module.

Fixes: 637784ade2 ("sctp: introduce priority based stream scheduler")
Fixes: ac1ed8b82c ("sctp: introduce round robin stream scheduler")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-11-26 20:16:08 +08:00 committed by David S. Miller
parent af2697a027
commit 1ba896f6f5
6 changed files with 41 additions and 9 deletions
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5
include/net/sctp/sctp.h
View File

@ -194,6 +194,11 @@ void sctp_remaddr_proc_exit(struct net *net);
*/
int sctp_offload_init(void);
/*
* sctp/stream_sched.c
*/
void sctp_sched_ops_init(void);
/*
* sctp/stream.c
*/

5
include/net/sctp/stream_sched.h
View File

@ -69,4 +69,9 @@ void sctp_sched_dequeue_common(struct sctp_outq *q, struct sctp_chunk *ch);
int sctp_sched_init_sid(struct sctp_stream *stream, __u16 sid, gfp_t gfp);
struct sctp_sched_ops *sctp_sched_ops_from_stream(struct sctp_stream *stream);
void sctp_sched_ops_register(enum sctp_sched_type sched,
struct sctp_sched_ops *sched_ops);
void sctp_sched_ops_prio_init(void);
void sctp_sched_ops_rr_init(void);
#endif /* __sctp_stream_sched_h__ */

1
net/sctp/protocol.c
View File

@ -1499,6 +1499,7 @@ static __init int sctp_init(void)
INIT_LIST_HEAD(&sctp_address_families);
sctp_v4_pf_init();
sctp_v6_pf_init();
sctp_sched_ops_init();
status = register_pernet_subsys(&sctp_defaults_ops);
if (status)

25
net/sctp/stream_sched.c
View File

@ -119,16 +119,27 @@ static struct sctp_sched_ops sctp_sched_fcfs = {
.unsched_all = sctp_sched_fcfs_unsched_all,
};
static void sctp_sched_ops_fcfs_init(void)
{
sctp_sched_ops_register(SCTP_SS_FCFS, &sctp_sched_fcfs);
}
/* API to other parts of the stack */
extern struct sctp_sched_ops sctp_sched_prio;
extern struct sctp_sched_ops sctp_sched_rr;
static struct sctp_sched_ops *sctp_sched_ops[SCTP_SS_MAX + 1];
static struct sctp_sched_ops *sctp_sched_ops[] = {
&sctp_sched_fcfs,
&sctp_sched_prio,
&sctp_sched_rr,
};
void sctp_sched_ops_register(enum sctp_sched_type sched,
struct sctp_sched_ops *sched_ops)
{
sctp_sched_ops[sched] = sched_ops;
}
void sctp_sched_ops_init(void)
{
sctp_sched_ops_fcfs_init();
sctp_sched_ops_prio_init();
sctp_sched_ops_rr_init();
}
int sctp_sched_set_sched(struct sctp_association *asoc,
enum sctp_sched_type sched)

7
net/sctp/stream_sched_prio.c
View File

@ -333,7 +333,7 @@ static void sctp_sched_prio_unsched_all(struct sctp_stream *stream)
sctp_sched_prio_unsched(soute);
}
struct sctp_sched_ops sctp_sched_prio = {
static struct sctp_sched_ops sctp_sched_prio = {
.set = sctp_sched_prio_set,
.get = sctp_sched_prio_get,
.init = sctp_sched_prio_init,
@ -345,3 +345,8 @@ struct sctp_sched_ops sctp_sched_prio = {
.sched_all = sctp_sched_prio_sched_all,
.unsched_all = sctp_sched_prio_unsched_all,
};
void sctp_sched_ops_prio_init(void)
{
sctp_sched_ops_register(SCTP_SS_PRIO, &sctp_sched_prio);
}

7
net/sctp/stream_sched_rr.c
View File

@ -187,7 +187,7 @@ static void sctp_sched_rr_unsched_all(struct sctp_stream *stream)
sctp_sched_rr_unsched(stream, soute);
}
struct sctp_sched_ops sctp_sched_rr = {
static struct sctp_sched_ops sctp_sched_rr = {
.set = sctp_sched_rr_set,
.get = sctp_sched_rr_get,
.init = sctp_sched_rr_init,
@ -199,3 +199,8 @@ struct sctp_sched_ops sctp_sched_rr = {
.sched_all = sctp_sched_rr_sched_all,
.unsched_all = sctp_sched_rr_unsched_all,
};
void sctp_sched_ops_rr_init(void)
{
sctp_sched_ops_register(SCTP_SS_RR, &sctp_sched_rr);
}