linux-kernel - [PATCH] platform/x86: think-lmi: Remove unnecessary casts for attributes

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Date:   Wed, 29 Mar 2023 04:50:25 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Mark Pearson <markpearson@...ovo.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] platform/x86: think-lmi: Remove unnecessary casts for
 attributes

These casts are unnecessary and could break if structure layouts are
randomized or implementation details change.
Use the proper syntax that works without casts.

Also remove some unnecessary braces that checkpatch complains about.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 drivers/platform/x86/think-lmi.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c
index c816646eb661..02bfd6e3fed2 100644
--- a/drivers/platform/x86/think-lmi.c
+++ b/drivers/platform/x86/think-lmi.c
@@ -862,19 +862,18 @@ static umode_t auth_attr_is_visible(struct kobject *kobj,
 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);
 
 	/* We only want to display level and index settings on HDD/NVMe */
-	if ((attr == (struct attribute *)&auth_index) ||
-			(attr == (struct attribute *)&auth_level)) {
+	if (attr == &auth_index.attr || attr == &auth_level.attr) {
 		if ((setting == tlmi_priv.pwd_hdd) || (setting == tlmi_priv.pwd_nvme))
 			return attr->mode;
 		return 0;
 	}
 
 	/* We only display certificates on Admin account, if supported */
-	if ((attr == (struct attribute *)&auth_certificate) ||
-			(attr == (struct attribute *)&auth_signature) ||
-			(attr == (struct attribute *)&auth_save_signature) ||
-			(attr == (struct attribute *)&auth_cert_thumb) ||
-			(attr == (struct attribute *)&auth_cert_to_password)) {
+	if (attr == &auth_certificate.attr ||
+	    attr == &auth_signature.attr ||
+	    attr == &auth_save_signature.attr ||
+	    attr == &auth_cert_thumb.attr ||
+	    attr == &auth_cert_to_password.attr) {
 		if ((setting == tlmi_priv.pwd_admin) && tlmi_priv.certificate_support)
 			return attr->mode;
 		return 0;

---
base-commit: fcd476ea6a888ef6e6627f4c21a2ea8cca3e9312
change-id: 20230329-think-lmi-attrs-994abb757e98

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