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| author | wangweidong <wangweidong1@huawei.com> | 2013-12-13 11:00:10 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-16 20:04:27 -0500 |
| commit | 9bd7d20c45157c175bfd45449e904a404506f99c (patch) | |
| tree | 8cbe47b31c0b14e9e2df595137e187ad4b21391f /net | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
| download | linux-9bd7d20c45157c175bfd45449e904a404506f99c.tar.gz | |
sctp: loading sctp when load sctp_probe
when I modprobe sctp_probe, it failed with "FATAL: ". I found that sctp should load before sctp_probe register jprobe. So I add a sctp_setup_jprobe for loading 'sctp' when first failed to register jprobe, just do this similar to dccp_probe. v2: add MODULE_SOFTDEP and check of request_module, as suggested by Neil Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sctp/probe.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/net/sctp/probe.c b/net/sctp/probe.c index 53c452efb40b..5e68b94ee640 100644 --- a/net/sctp/probe.c +++ b/net/sctp/probe.c @@ -38,6 +38,7 @@ #include <net/sctp/sctp.h> #include <net/sctp/sm.h> +MODULE_SOFTDEP("pre: sctp"); MODULE_AUTHOR("Wei Yongjun <yjwei@cn.fujitsu.com>"); MODULE_DESCRIPTION("SCTP snooper"); MODULE_LICENSE("GPL"); @@ -182,6 +183,20 @@ static struct jprobe sctp_recv_probe = { .entry = jsctp_sf_eat_sack, }; +static __init int sctp_setup_jprobe(void) +{ + int ret = register_jprobe(&sctp_recv_probe); + + if (ret) { + if (request_module("sctp")) + goto out; + ret = register_jprobe(&sctp_recv_probe); + } + +out: + return ret; +} + static __init int sctpprobe_init(void) { int ret = -ENOMEM; @@ -202,7 +217,7 @@ static __init int sctpprobe_init(void) &sctpprobe_fops)) goto free_kfifo; - ret = register_jprobe(&sctp_recv_probe); + ret = sctp_setup_jprobe(); if (ret) goto remove_proc; |