Patch "PCI: hv: Remove the useless hv_pcichild_state from struct hv_pci_dev" has been added to the 5.15-stable tree

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

    PCI: hv: Remove the useless hv_pcichild_state from struct hv_pci_dev

to the 5.15-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:
     pci-hv-remove-the-useless-hv_pcichild_state-from-struct-hv_pci_dev.patch
and it can be found in the queue-5.15 subdirectory.

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


>From add9195e69c94b32e96f78c2f9cea68f0e850b3f Mon Sep 17 00:00:00 2001
From: Dexuan Cui <decui@xxxxxxxxxxxxx>
Date: Wed, 14 Jun 2023 21:44:49 -0700
Subject: PCI: hv: Remove the useless hv_pcichild_state from struct hv_pci_dev

From: Dexuan Cui <decui@xxxxxxxxxxxxx>

commit add9195e69c94b32e96f78c2f9cea68f0e850b3f upstream.

The hpdev->state is never really useful. The only use in
hv_pci_eject_device() and hv_eject_device_work() is not really necessary.

Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Acked-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20230615044451.5580-4-decui@xxxxxxxxxxxxx
Signed-off-by: Wei Liu <wei.liu@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/pci/controller/pci-hyperv.c |   12 ------------
 1 file changed, 12 deletions(-)

--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -547,19 +547,10 @@ struct hv_dr_state {
 	struct hv_pcidev_description func[];
 };
 
-enum hv_pcichild_state {
-	hv_pcichild_init = 0,
-	hv_pcichild_requirements,
-	hv_pcichild_resourced,
-	hv_pcichild_ejecting,
-	hv_pcichild_maximum
-};
-
 struct hv_pci_dev {
 	/* List protected by pci_rescan_remove_lock */
 	struct list_head list_entry;
 	refcount_t refs;
-	enum hv_pcichild_state state;
 	struct pci_slot *pci_slot;
 	struct hv_pcidev_description desc;
 	bool reported_missing;
@@ -2430,8 +2421,6 @@ static void hv_eject_device_work(struct
 	hpdev = container_of(work, struct hv_pci_dev, wrk);
 	hbus = hpdev->hbus;
 
-	WARN_ON(hpdev->state != hv_pcichild_ejecting);
-
 	/*
 	 * Ejection can come before or after the PCI bus has been set up, so
 	 * attempt to find it and tear down the bus state, if it exists.  This
@@ -2488,7 +2477,6 @@ static void hv_pci_eject_device(struct h
 		return;
 	}
 
-	hpdev->state = hv_pcichild_ejecting;
 	get_pcichild(hpdev);
 	INIT_WORK(&hpdev->wrk, hv_eject_device_work);
 	queue_work(hbus->wq, &hpdev->wrk);


Patches currently in stable-queue which might be from decui@xxxxxxxxxxxxx are

queue-5.15/pci-hv-add-a-per-bus-mutex-state_lock.patch
queue-5.15/pci-hv-fix-a-race-condition-in-hv_irq_unmask-that-can-cause-panic.patch
queue-5.15/revert-pci-hv-fix-a-timing-issue-which-causes-kdump-to-fail-occasionally.patch
queue-5.15/pci-hv-remove-the-useless-hv_pcichild_state-from-struct-hv_pci_dev.patch
queue-5.15/drivers-hv-vmbus-call-hv_synic_free-if-hv_synic_alloc-fails.patch
queue-5.15/pci-hv-fix-a-race-condition-bug-in-hv_pci_query_relations.patch



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