linux-kernel - [PATCH v3 4/5] platform/x86: think-lmi: Don't display unnecessary authentication settings

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Date:   Fri, 26 May 2023 13:16:57 -0400
From:   Mark Pearson <mpearson-lenovo@...ebb.ca>
To:     mpearson-lenovo@...ebb.ca
Cc:     hdegoede@...hat.com, markgross@...nel.org,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/5] platform/x86: think-lmi: Don't display unnecessary authentication settings

If Opcode support is available (which is the standard for all platforms
going forward) then there is no need to have the encoding and kbdlang
attributes visible

Signed-off-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
---
Changes in v2 & v3: None. Version bumped in series

 drivers/platform/x86/think-lmi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c
index 1c02958035ad..64cd453d6e7d 100644
--- a/drivers/platform/x86/think-lmi.c
+++ b/drivers/platform/x86/think-lmi.c
@@ -879,6 +879,12 @@ static umode_t auth_attr_is_visible(struct kobject *kobj,
 		return 0;
 	}
 
+	/* Don't display un-needed settings if opcode available */
+	if ((attr == &auth_encoding.attr ||
+	    attr == &auth_kbdlang.attr) &&
+	    tlmi_priv.opcode_support)
+		return 0;
+
 	return attr->mode;
 }
 
-- 
2.40.1