linux/net/sctp
Daniel Borkmann 81296fc673 net: sctp: stop spamming klog with rfc6458, 5.3.2. deprecation warnings
Back then when we added support for SCTP_SNDINFO/SCTP_RCVINFO from
RFC6458 5.3.4/5.3.5, we decided to add a deprecation warning for the
(as per RFC deprecated) SCTP_SNDRCV via commit bbbea41d5e ("net:
sctp: deprecate rfc6458, 5.3.2. SCTP_SNDRCV support"), see [1].

Imho, it was not a good idea, and we should just revert that message
for a couple of reasons:

  1) It's uapi and therefore set in stone forever.

  2) To be able to run on older and newer kernels, an SCTP application
     would need to probe for both, SCTP_SNDRCV, but also SCTP_SNDINFO/
     SCTP_RCVINFO support, so that on older kernels, it can make use
     of SCTP_SNDRCV, and on newer kernels SCTP_SNDINFO/SCTP_RCVINFO.
     In my (limited) experience, a lot of SCTP appliances are migrating
     to newer kernels only ve(ee)ry slowly.

  3) Some people don't have the chance to change their applications,
     f.e. due to proprietary legacy stuff. So, they'll hit this warning
     in fast path and are stuck with older kernels.

But i.e. due to point 1) I really fail to see the benefit of a warning.
So just revert that for now, the issue was reported up Jamal.

  [1] http://thread.gmane.org/gmane.linux.network/321960/

Reported-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Tuexen <tuexen@fh-muenster.de>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-26 16:32:41 -07:00
..
associola.c net: sctp: Deletion of an unnecessary check before the function call "kfree" 2015-02-02 19:29:43 -08:00
auth.c sctp: allow authenticating DATA chunks that are bundled with COOKIE_ECHO 2015-06-12 14:18:20 -07:00
bind_addr.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
chunk.c switch sctp_user_addto_chunk() and sctp_datamsg_from_user() to passing iov_iter 2014-11-24 05:16:40 -05:00
debug.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
endpointola.c net: sctp: migrate most recently used transport to ktime 2014-06-11 12:23:17 -07:00
input.c sctp: Change sctp to implement csum_levels 2014-08-29 20:41:11 -07:00
inqueue.c net: sctp: fix remote memory pressure from excessive queueing 2014-10-14 12:46:22 -04:00
ipv6.c ipv6: Add rt6_get_cookie() function 2015-05-25 13:25:34 -04:00
Kconfig net: sctp: get rid of SCTP_DBG_TSNS entirely 2013-07-02 00:08:03 -07:00
Makefile net: sctp: Inline the functions from command.c 2014-07-08 14:38:48 -07:00
objcnt.c sctp: fix checkpatch errors with (foo*)|foo * bar|foo* bar 2013-12-26 13:47:47 -05:00
output.c sctp: Fix race between OOTB responce and route removal 2015-06-29 09:28:42 -07:00
outqueue.c net: sctp: Rename SCTP_XMIT_NAGLE_DELAY to SCTP_XMIT_DELAY 2014-07-22 13:32:11 -07:00
primitive.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
probe.c sctp: loading sctp when load sctp_probe 2013-12-16 20:04:27 -05:00
proc.c sctp: replace seq_printf with seq_puts 2014-10-30 19:40:16 -04:00
protocol.c net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
sm_make_chunk.c net: sctp: fix passing wrong parameter header to param_type2af in sctp_process_param 2015-01-30 17:45:23 -08:00
sm_sideeffect.c net: sctp: Don't transition to PF state when transport has exhausted 'Path.Max.Retrans'. 2014-04-27 23:41:14 -04:00
sm_statefuns.c net: sctp: fix remote memory pressure from excessive queueing 2014-10-14 12:46:22 -04:00
sm_statetable.c sctp: fix checkpatch errors with indent 2013-12-26 13:47:48 -05:00
socket.c net: sctp: stop spamming klog with rfc6458, 5.3.2. deprecation warnings 2015-07-26 16:32:41 -07:00
ssnmap.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
sysctl.c sctp: avoid to repeatedly declare external variables 2015-03-25 11:40:16 -04:00
transport.c sctp: Fixup v4mapped behaviour to comply with Sock API 2014-07-31 21:49:06 -07:00
tsnmap.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
ulpevent.c sctp: Fixup v4mapped behaviour to comply with Sock API 2014-07-31 21:49:06 -07:00
ulpqueue.c net: introduce SO_INCOMING_CPU 2014-11-11 13:00:06 -05:00