Patch "[PATCH] Revert "genirq: Use irqd_get_trigger_type to compare the" has been added to the 4.9-stable tree

[<gregkh@linuxfoundation.org>]

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 4.9-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-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 399af491b3f604277121f817ab0da9be6801bcef Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 30 Mar 2018 10:43:30 +0200
Subject: [PATCH] Revert "genirq: Use irqd_get_trigger_type to compare the
 trigger type for shared IRQs"

This reverts commit f2596a9808acfd02ce1ee389f0e1c37e64aec5f6 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.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1210,10 +1210,8 @@ __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 gregkh@linuxfoundation.org are

queue-4.9/net-fix-hlist-corruptions-in-inet_evict_bucket.patch
queue-4.9/ppp-avoid-loop-in-xmit-recursion-detection-code.patch
queue-4.9/ipv6-fix-access-to-non-linear-packet-in-ndisc_fill_redirect_hdr_option.patch
queue-4.9/net-only-honor-ifindex-in-ip_pktinfo-if-non-0.patch
queue-4.9/skbuff-fix-not-waking-applications-when-errors-are-enqueued.patch
queue-4.9/rhashtable-fix-rhlist-duplicates-insertion.patch
queue-4.9/kcm-lock-lower-socket-in-kcm_attach.patch
queue-4.9/s390-qeth-when-thread-completes-wake-up-all-waiters.patch
queue-4.9/sch_netem-fix-skb-leak-in-netem_enqueue.patch
queue-4.9/s390-qeth-lock-read-device-while-queueing-next-buffer.patch
queue-4.9/net-systemport-rewrite-__bcm_sysport_tx_reclaim.patch
queue-4.9/revert-genirq-use-irqd_get_trigger_type-to-compare-the.patch
queue-4.9/l2tp-do-not-accept-arbitrary-sockets.patch
queue-4.9/netlink-avoid-a-double-skb-free-in-genlmsg_mcast.patch
queue-4.9/team-fix-double-free-in-error-path.patch
queue-4.9/net-use-skb_to_full_sk-in-skb_update_prio.patch
queue-4.9/ieee802154-6lowpan-fix-possible-null-deref-in-lowpan_device_event.patch
queue-4.9/net-hns-fix-a-skb-used-after-free-bug.patch
queue-4.9/soc-fsl-qbman-fix-issue-in-qman_delete_cgr_safe.patch
queue-4.9/net-iucv-free-memory-obtained-by-kzalloc.patch
queue-4.9/net-ethernet-arc-fix-a-potential-memory-leak-if-an-optional-regulator-is-deferred.patch
queue-4.9/s390-qeth-on-channel-error-reject-further-cmd-requests.patch
queue-4.9/scsi-sg-don-t-return-bogus-sg_requests.patch
queue-4.9/dccp-check-sk-for-closed-state-in-dccp_sendmsg.patch
queue-4.9/net-fec-fix-unbalanced-pm-runtime-calls.patch
queue-4.9/net-ethernet-ti-cpsw-add-check-for-in-band-mode-setting-with-rgmii-phy-interface.patch
queue-4.9/net-sched-actions-return-explicit-error-when-tunnel_key-mode-is-not-specified.patch
queue-4.9/s390-qeth-free-netdevice-when-removing-a-card.patch