+ acpi-hmat-use-hotplug_memory_notifier-directly.patch added to mm-unstable branch

+ acpi-hmat-use-hotplug_memory_notifier-directly.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: ACPI: HMAT: use hotplug_memory_notifier() directly
has been added to the -mm mm-unstable branch.  Its filename is
     acpi-hmat-use-hotplug_memory_notifier-directly.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/acpi-hmat-use-hotplug_memory_notifier-directly.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Liu Shixin <liushixin2@huawei.com>
Subject: ACPI: HMAT: use hotplug_memory_notifier() directly
Date: Fri, 23 Sep 2022 11:33:45 +0800

Commit 76ae847497bc52 ("Documentation: raise minimum supported version of
GCC to 5.1") updated the minimum gcc version to 5.1.  So the problem
mentioned in f02c69680088 ("include/linux/memory.h: implement
register_hotmemory_notifier()") no longer exist.  So we can now switch to
use hotplug_memory_notifier() directly rather than
register_hotmemory_notifier().

Link: https://lkml.kernel.org/r/20220923033347.3935160-7-liushixin2@huawei.com
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Waiman Long <longman@redhat.com>
Cc: zefan li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/acpi/numa/hmat.c |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

--- a/drivers/acpi/numa/hmat.c~acpi-hmat-use-hotplug_memory_notifier-directly
+++ a/drivers/acpi/numa/hmat.c
@@ -767,11 +767,6 @@ static int hmat_callback(struct notifier
 	return NOTIFY_OK;
 }
 
-static struct notifier_block hmat_callback_nb = {
-	.notifier_call = hmat_callback,
-	.priority = 2,
-};
-
 static __init void hmat_free_structures(void)
 {
 	struct memory_target *target, *tnext;
@@ -854,7 +849,7 @@ static __init int hmat_init(void)
 	hmat_register_targets();
 
 	/* Keep the table and structures if the notifier may use them */
-	if (!register_hotmemory_notifier(&hmat_callback_nb))
+	if (!hotplug_memory_notifier(hmat_callback, 2))
 		return 0;
 out_put:
 	hmat_free_structures();
_

Patches currently in -mm which might be from liushixin2@huawei.com are

cgroup-cpuset-use-hotplug_memory_notifier-directly.patch
fs-proc-kcorec-use-hotplug_memory_notifier-directly.patch
mm-slubc-use-hotplug_memory_notifier-directly.patch
mm-mmap-use-hotplug_memory_notifier-directly.patch
mm-mm_initc-use-hotplug_memory_notifier-directly.patch
acpi-hmat-use-hotplug_memory_notifier-directly.patch
memory-remove-unused-register_hotmemory_notifier.patch
memory-move-hotplug-memory-notifier-priority-to-same-file-for-easy-sorting.patch