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a3007446e5
linux/net/sctp
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Marcelo Ricardo Leitner a3007446e5 sctp: fix the handling of SACK Gap Ack blocks 
sctp_acked() is using 32bit arithmetics on 16bits vars, via TSN_lte()
macros, which is weird and confusing.

Once the offset to ctsn is calculated, all wrapping is already handled
and thus to verify the Gap Ack blocks we can just use pure
less/big-or-equal than checks.

Also, rename gap variable to tsn_offset, so it's more meaningful, as
it doesn't point to any gap at all.

Even so, I don't think this discrepancy resulted in any practical bug.

This patch is a preparation for the next one, which will introduce
typecheck() for TSN_lte() macros and would cause a compile error here.

Suggested-by: David Laight <David.Laight@ACULAB.COM>
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23 06:54:58 -04:00
..
associola.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
auth.c sctp: use IS_ENABLED() instead of checking for built-in or module 2016-09-10 21:19:11 -07:00
bind_addr.c sctp: fix copying more bytes than expected in sctp_add_bind_addr 2016-03-08 15:04:08 -05:00
chunk.c sctp: make use of SCTP_TRUNC4 macro 2016-09-22 03:13:26 -04:00
debug.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
endpointola.c sctp: add SCTP_PR_SUPPORTED on sctp sockopt 2016-07-11 13:25:38 -07:00
input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-23 06:46:57 -04:00
inqueue.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
ipv6.c sctp: use inet_recvmsg to support sctp RFS well 2016-07-25 10:56:28 -07:00
Kconfig sctp: add the sctp_diag.c file 2016-04-15 17:29:36 -04:00
Makefile sctp: Add GSO support 2016-06-03 19:37:21 -04:00
objcnt.c sctp: fix checkpatch errors with (foo*)|foo * bar|foo* bar 2013-12-26 13:47:47 -05:00
offload.c sctp: fix GSO for IPv6 2016-07-16 22:02:09 -07:00
output.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
outqueue.c sctp: fix the handling of SACK Gap Ack blocks 2016-09-23 06:54:58 -04:00
primitive.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
probe.c net: sctp: Convert log timestamps to be y2038 safe 2016-03-01 17:18:44 -05:00
proc.c net/sctp: always initialise sctp_ht_iter::start_fail 2016-08-13 15:10:16 -07:00
protocol.c sctp: use inet_recvmsg to support sctp RFS well 2016-07-25 10:56:28 -07:00
sctp_diag.c net: inet: diag: expose the socket mark to privileged processes. 2016-09-08 16:13:09 -07:00
sm_make_chunk.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
sm_sideeffect.c sctp: make sctp_outq_flush/tail/uncork return void 2016-09-18 22:02:33 -04:00
sm_statefuns.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
sm_statetable.c sctp: fix checkpatch errors with indent 2013-12-26 13:47:48 -05:00
socket.c sctp: free msg->chunks when sctp_primitive_SEND return err 2016-09-18 22:02:32 -04:00
ssnmap.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
sysctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-01-11 23:55:43 -05:00
transport.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
tsnmap.c sctp: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
ulpevent.c sctp: rename WORD_TRUNC/ROUND macros 2016-09-22 03:13:26 -04:00
ulpqueue.c sctp: Remove some redundant code 2016-09-19 01:34:01 -04:00