[PATCH 3.2 139/149] Revert "sctp: fix call to SCTP_CMD_PROCESS_SACKin sctp_cmd_interpreter()"

[Ben Hutchings]

3.2.52-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>

This reverts commit de77b7955c3985ca95f64af3cb10557eb17eacee, which was
commit f6e80abeab928b7c47cc1fbf53df13b4398a2bec upstream.

This fix was only appropriate for Linux 3.7 onward, and introduced a
regression when applied to earlier versions.

Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1604,9 +1604,8 @@ static int sctp_cmd_interpreter(sctp_eve
 					asoc->outqueue.outstanding_bytes;
 			sackh.num_gap_ack_blocks = 0;
 			sackh.num_dup_tsns = 0;
-			chunk->subh.sack_hdr = &sackh;
 			sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_SACK,
-					SCTP_CHUNK(chunk));
+					SCTP_SACKH(&sackh));
 			break;
 
 		case SCTP_CMD_DISCARD_PACKET:

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