linux-kernel - [PATCH 01/27] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220210072828.2930359-2-hch@lst.de>
Date:   Thu, 10 Feb 2022 08:28:02 +0100
From:   Christoph Hellwig <hch@....de>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Dan Williams <dan.j.williams@...el.com>
Cc:     Felix Kuehling <Felix.Kuehling@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Karol Herbst <kherbst@...hat.com>,
        Lyude Paul <lyude@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>,
        Alistair Popple <apopple@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        nvdimm@...ts.linux.dev, linux-mm@...ck.org,
        Jason Gunthorpe <jgg@...dia.com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Muchun Song <songmuchun@...edance.com>
Subject: [PATCH 01/27] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages

memremap.c is only built when CONFIG_ZONE_DEVICE is set, so remove
the superflous extra check.

Signed-off-by: Christoph Hellwig <hch@....de>
Reviewed-by: Logan Gunthorpe <logang@...tatee.com>
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>
Reviewed-by: Muchun Song <songmuchun@...edance.com>
Reviewed-by: Dan Williams <dan.j.williams@...el.com>
---
 mm/memremap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/memremap.c b/mm/memremap.c
index 6aa5f0c2d11fda..5f04a0709e436e 100644
--- a/mm/memremap.c
+++ b/mm/memremap.c
@@ -328,8 +328,7 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
 		}
 		break;
 	case MEMORY_DEVICE_FS_DAX:
-		if (!IS_ENABLED(CONFIG_ZONE_DEVICE) ||
-		    IS_ENABLED(CONFIG_FS_DAX_LIMITED)) {
+		if (IS_ENABLED(CONFIG_FS_DAX_LIMITED)) {
 			WARN(1, "File system DAX not supported\n");
 			return ERR_PTR(-EINVAL);
 		}
-- 
2.30.2