diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2025-10-25 09:40:59 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-10-28 17:50:55 -0700 |
| commit | 294bfe0343da3b59db040c3a4dac05b4c91ce013 (patch) | |
| tree | d54feaa16e94f20caf625523194ba6b1b37ddb90 /include/net | |
| parent | 8443c3160858b860bfc2db6a8397c72c9f6b513e (diff) | |
sctp: Constify struct sctp_sched_ops
'struct sctp_sched_ops' is not modified in these drivers.
Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
8019 568 0 8587 218b net/sctp/stream_sched_fc.o
After:
=====
text data bss dec hex filename
8275 312 0 8587 218b net/sctp/stream_sched_fc.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/dce03527eb7b7cc8a3c26d5cdac12bafe3350135.1761377890.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sctp/stream_sched.h | 4 | ||||
| -rw-r--r-- | include/net/sctp/structs.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/net/sctp/stream_sched.h b/include/net/sctp/stream_sched.h index 8034bf5febbe..77806ef1cb70 100644 --- a/include/net/sctp/stream_sched.h +++ b/include/net/sctp/stream_sched.h @@ -52,10 +52,10 @@ void sctp_sched_dequeue_done(struct sctp_outq *q, struct sctp_chunk *ch); 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); +const 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); + const struct sctp_sched_ops *sched_ops); void sctp_sched_ops_prio_init(void); void sctp_sched_ops_rr_init(void); void sctp_sched_ops_fc_init(void); diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 3dd304e411d0..5900196d65fd 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1073,7 +1073,7 @@ struct sctp_outq { struct list_head out_chunk_list; /* Stream scheduler being used */ - struct sctp_sched_ops *sched; + const struct sctp_sched_ops *sched; unsigned int out_qlen; /* Total length of queued data chunks. */ |