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Bluetooth: controller: llcp: fix issue re. version exchange

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Complete the remote initiated version exchange if a LL_VERSION_IND is
received while already having responded in an earlier version exchange
procedure.

Clarify comment regarding how to handle this invalid behaviour.

This has been seen when running the LL/CON/CEN/BI-12-C test on EBQ.

Signed-off-by: Thomas Ebert Hansen <thoh@oticon.com>
This commit is contained in:
Thomas Ebert Hansen 2022-06-24 12:07:43 +02:00 • committed by Carles Cufí
commit d9774bd925
1 changed files with 3 additions and 1 deletions
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subsys/bluetooth/controller/ll_sw/ull_llcp_common.c
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@ -1035,8 +1035,10 @@ static void rp_comm_send_rsp(struct ll_conn *conn, struct proc_ctx *ctx, uint8_t
} else {
/* Invalid behaviour
* A procedure already sent a LL_VERSION_IND and received a LL_VERSION_IND.
* For now we chose to ignore the 'out of order' PDU
* Ignore and complete the procedure.
*/
llcp_rr_complete(conn);
ctx->state = RP_COMMON_STATE_IDLE;
}
break;