From 8738e07d5c9b5b02f113c7e0ba67f0d8d6a5b23c Mon Sep 17 00:00:00 2001 From: Holger Dengler Date: Mon, 2 Jul 2012 12:39:59 +0200 Subject: [PATCH] s390/ap: resend enable adapter interrupt request. The adapter interrupt for an APQN must be re-enabled after a reset. This patch sends the interrupt enablement request again, if the APQN is busy or the reset is still in progress. Signed-off-by: Holger Dengler Signed-off-by: Heiko Carstens --- drivers/s390/crypto/ap_bus.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index b987d4619586..fa5f05c643cb 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -338,6 +338,12 @@ static int ap_queue_enable_interruption(ap_qid_t qid, void *ind) break; case AP_RESPONSE_RESET_IN_PROGRESS: case AP_RESPONSE_BUSY: + if (i < AP_MAX_RESET - 1) { + udelay(5); + status = ap_queue_interruption_control(qid, + ind); + continue; + } break; case AP_RESPONSE_Q_NOT_AVAIL: case AP_RESPONSE_DECONFIGURED: