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sctp: Don't abort initialization when CONFIG_PROC_FS=n

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This puts CONFIG_PROC_FS defines around the proc init/exit functions
and also avoids compiling proc.c if procfs is not supported.
Also make SCTP_DBG_OBJCNT depend on procfs.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2008-07-18 23:03:44 -07:00 committed by David S. Miller
parent c1e20f7c8b
commit c4e85f82ed
3 changed files with 14 additions and 5 deletions
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4
net/sctp/Kconfig
View file

@ -47,11 +47,11 @@ config SCTP_DBG_MSG
config SCTP_DBG_OBJCNT
bool "SCTP: Debug object counts"
depends on PROC_FS
help
If you say Y, this will enable debugging support for counting the
type of objects that are currently allocated. This is useful for
identifying memory leaks. If the /proc filesystem is enabled this
debug information can be viewed by
identifying memory leaks. This debug information can be viewed by
'cat /proc/net/sctp/sctp_dbg_objcnt'
If unsure, say N

4
net/sctp/Makefile
View file

@ -9,10 +9,10 @@ sctp-y := sm_statetable.o sm_statefuns.o sm_sideeffect.o \
transport.o chunk.o sm_make_chunk.o ulpevent.o \
inqueue.o outqueue.o ulpqueue.o command.o \
tsnmap.o bind_addr.o socket.o primitive.o \
output.o input.o debug.o ssnmap.o proc.o \
auth.o
output.o input.o debug.o ssnmap.o auth.o
sctp-$(CONFIG_SCTP_DBG_OBJCNT) += objcnt.o
sctp-$(CONFIG_PROC_FS) += proc.o
sctp-$(CONFIG_SYSCTL) += sysctl.o
sctp-$(subst m,y,$(CONFIG_IPV6)) += ipv6.o

11
net/sctp/protocol.c
View file

@ -64,9 +64,12 @@
/* Global data structures. */
struct sctp_globals sctp_globals __read_mostly;
struct proc_dir_entry *proc_net_sctp;
DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics) __read_mostly;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_net_sctp;
#endif
struct idr sctp_assocs_id;
DEFINE_SPINLOCK(sctp_assocs_id_lock);
@ -97,6 +100,7 @@ struct sock *sctp_get_ctl_sock(void)
/* Set up the proc fs entry for the SCTP protocol. */
static __init int sctp_proc_init(void)
{
#ifdef CONFIG_PROC_FS
if (!proc_net_sctp) {
struct proc_dir_entry *ent;
ent = proc_mkdir("sctp", init_net.proc_net);
@ -131,6 +135,9 @@ out_snmp_proc_init:
}
out_nomem:
return -ENOMEM;
#else
return 0;
#endif /* CONFIG_PROC_FS */
}
/* Clean up the proc fs entry for the SCTP protocol.
@ -139,6 +146,7 @@ out_nomem:
*/
static void sctp_proc_exit(void)
{
#ifdef CONFIG_PROC_FS
sctp_snmp_proc_exit();
sctp_eps_proc_exit();
sctp_assocs_proc_exit();
@ -148,6 +156,7 @@ static void sctp_proc_exit(void)
proc_net_sctp = NULL;
remove_proc_entry("sctp", init_net.proc_net);
}
#endif
}
/* Private helper to extract ipv4 address and stash them in