linux-kernel - [PATCH] efi: x86: make kobj

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Message-Id: <20230227-kobj_type-x86-efi-v1-1-a335952d2536@weissschuh.net>
Date:   Mon, 27 Feb 2023 03:09:36 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Ard Biesheuvel <ardb@...nel.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     linux-efi@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] efi: x86: make kobj_type structure constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 arch/x86/platform/efi/runtime-map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/runtime-map.c b/arch/x86/platform/efi/runtime-map.c
index bbee682ef8cd..a6f02cef3ca2 100644
--- a/arch/x86/platform/efi/runtime-map.c
+++ b/arch/x86/platform/efi/runtime-map.c
@@ -93,7 +93,7 @@ static void map_release(struct kobject *kobj)
 	kfree(entry);
 }
 
-static struct kobj_type __refdata map_ktype = {
+static const struct kobj_type __refconst map_ktype = {
 	.sysfs_ops	= &map_attr_ops,
 	.default_groups	= def_groups,
 	.release	= map_release,

---
base-commit: 2fcd07b7ccd5fd10b2120d298363e4e6c53ccf9c
change-id: 20230227-kobj_type-x86-efi-7591b1343b08

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>