linux-kernel - [PATCH 7/8] s390/sclp: remove unhandled memory notifier type

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Date:   Tue, 14 Nov 2023 19:02:37 +0100
From:   Sumanth Korikkar <sumanthk@...ux.ibm.com>
To:     linux-mm <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>
Cc:     Oscar Salvador <osalvador@...e.de>, Michal Hocko <mhocko@...e.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        linux-s390 <linux-s390@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 7/8] s390/sclp: remove unhandled memory notifier type

Remove memory notifier types which are unhandled by s390.  Unhandled
memory notifier types are covered by default case.

Suggested-by: Alexander Gordeev <agordeev@...ux.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@...ux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@...ux.ibm.com>
---
 drivers/s390/char/sclp_cmd.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 12f3d4af7e4e..428f8a583e8f 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -349,11 +349,6 @@ static int sclp_mem_notifier(struct notifier_block *nb,
 		if (contains_standby_increment(start, start + size))
 			rc = -EPERM;
 		break;
-	case MEM_ONLINE:
-	case MEM_CANCEL_OFFLINE:
-		break;
-	case MEM_GOING_ONLINE:
-		break;
 	case MEM_PHYS_ONLINE:
 		rc = sclp_mem_change_state(start, size, 1);
 		if (rc || !memory_block->altmap)
@@ -369,9 +364,6 @@ static int sclp_mem_notifier(struct notifier_block *nb,
 		 */
 		__arch_set_page_nodat((void *)start, memory_block->altmap->free);
 		break;
-	case MEM_CANCEL_ONLINE:
-	case MEM_OFFLINE:
-		break;
 	case MEM_PHYS_OFFLINE:
 		if (memory_block->altmap)
 			__remove_pages(arg->start_pfn, arg->nr_pages, memory_block->altmap);
-- 
2.41.0