linux-kernel - [PATCH 04/29] afs: move afs_xattr

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Date:   Sat, 30 Sep 2023 02:00:08 -0300
From:   Wedson Almeida Filho <wedsonaf@...il.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Wedson Almeida Filho <walmeida@...rosoft.com>,
        David Howells <dhowells@...hat.com>,
        Marc Dionne <marc.dionne@...istor.com>,
        linux-afs@...ts.infradead.org
Subject: [PATCH 04/29] afs: move afs_xattr_handlers to .rodata

From: Wedson Almeida Filho <walmeida@...rosoft.com>

This makes it harder for accidental or malicious changes to
afs_xattr_handlers at runtime.

Cc: David Howells <dhowells@...hat.com>
Cc: Marc Dionne <marc.dionne@...istor.com>
Cc: linux-afs@...ts.infradead.org
Signed-off-by: Wedson Almeida Filho <walmeida@...rosoft.com>
---
 fs/afs/internal.h | 2 +-
 fs/afs/xattr.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 9d3d64921106..a01d1f71ae8c 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -1539,7 +1539,7 @@ int afs_launder_folio(struct folio *);
 /*
  * xattr.c
  */
-extern const struct xattr_handler *afs_xattr_handlers[];
+extern const struct xattr_handler * const afs_xattr_handlers[];
 
 /*
  * yfsclient.c
diff --git a/fs/afs/xattr.c b/fs/afs/xattr.c
index 9048d8ccc715..64b2c0224f62 100644
--- a/fs/afs/xattr.c
+++ b/fs/afs/xattr.c
@@ -353,7 +353,7 @@ static const struct xattr_handler afs_xattr_afs_volume_handler = {
 	.get	= afs_xattr_get_volume,
 };
 
-const struct xattr_handler *afs_xattr_handlers[] = {
+const struct xattr_handler * const afs_xattr_handlers[] = {
 	&afs_xattr_afs_acl_handler,
 	&afs_xattr_afs_cell_handler,
 	&afs_xattr_afs_fid_handler,
-- 
2.34.1