Patch "[PATCH] Revert "genirq: Use irqd_get_trigger_type to compare the" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

[PATCH] Revert "genirq: Use irqd_get_trigger_type to compare the

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
revert-genirq-use-irqd_get_trigger_type-to-compare-the.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Greg Kroah-Hartman <[email protected]>
Date: Fri, 30 Mar 2018 10:53:44 +0200
Subject: [PATCH] Revert "genirq: Use irqd_get_trigger_type to compare the
trigger type for shared IRQs"

This reverts commit 9d0273bb1c4b645817eccfe5c5975ea29add3300 which is commit 382bd4de61827dbaaf5fb4fb7b1f4be4a86505e7 upstream.

It causes too many problems with the stable tree, and would require too many other things to be backported, so just revert it.

---
 kernel/irq/manage.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

@@ -1189,10 +1189,8 @@ __setup_irq(unsigned int irq, struct irq
 		 * set the trigger type must match. Also all must
 		 * agree on ONESHOT.
 		 */
-		unsigned int oldtype = irqd_get_trigger_type(&desc->irq_data);
-
 		if (!((old->flags & new->flags) & IRQF_SHARED) ||
-		    (oldtype != (new->flags & IRQF_TRIGGER_MASK)) ||
+		    ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK) ||
 		    ((old->flags ^ new->flags) & IRQF_ONESHOT))
 			goto mismatch;
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/net-fix-hlist-corruptions-in-inet_evict_bucket.patch queue-4.4/ipv6-fix-access-to-non-linear-packet-in-ndisc_fill_redirect_hdr_option.patch queue-4.4/net-only-honor-ifindex-in-ip_pktinfo-if-non-0.patch queue-4.4/skbuff-fix-not-waking-applications-when-errors-are-enqueued.patch queue-4.4/s390-qeth-when-thread-completes-wake-up-all-waiters.patch queue-4.4/s390-qeth-lock-read-device-while-queueing-next-buffer.patch queue-4.4/net-systemport-rewrite-__bcm_sysport_tx_reclaim.patch queue-4.4/revert-genirq-use-irqd_get_trigger_type-to-compare-the.patch queue-4.4/l2tp-do-not-accept-arbitrary-sockets.patch queue-4.4/netlink-avoid-a-double-skb-free-in-genlmsg_mcast.patch queue-4.4/team-fix-double-free-in-error-path.patch queue-4.4/ieee802154-6lowpan-fix-possible-null-deref-in-lowpan_device_event.patch queue-4.4/net-iucv-free-memory-obtained-by-kzalloc.patch queue-4.4/net-ethernet-arc-fix-a-potential-memory-leak-if-an-optional-regulator-is-deferred.patch queue-4.4/s390-qeth-on-channel-error-reject-further-cmd-requests.patch queue-4.4/scsi-sg-don-t-return-bogus-sg_requests.patch queue-4.4/dccp-check-sk-for-closed-state-in-dccp_sendmsg.patch queue-4.4/net-fec-fix-unbalanced-pm-runtime-calls.patch queue-4.4/net-ethernet-ti-cpsw-add-check-for-in-band-mode-setting-with-rgmii-phy-interface.patch queue-4.4/s390-qeth-free-netdevice-when-removing-a-card.patch