From fa9f924c7ff95f9299e11657c4441288d7f01dbd Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@dell.com>
Date: Wed, 1 Nov 2017 14:25:26 -0500
Subject: [PATCH] platform/x86: dell-wmi: don't check length returned
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Git-commit: fa9f924c7ff95f9299e11657c4441288d7f01dbd
Patch-mainline: v4.15-rc1
References: FATE#325842

This is intended to be variable and provided by the platform.
Some platforms this year will be adopting a 32k WMI buffer, so don't
complain when encountering those platforms or any other future changes.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Reviewed-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/platform/x86/dell-wmi.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -624,7 +624,7 @@ static void dell_wmi_input_destroy(struc
  * Vendor Signature          0       4    "DELL"
  * Object Signature          4       4    " WMI"
  * WMI Interface Version     8       4    <version>
- * WMI buffer length        12       4    4096
+ * WMI buffer length        12       4    <length>
  */
 static int dell_wmi_check_descriptor_buffer(struct wmi_device *wdev)
 {
@@ -674,10 +674,6 @@ static int dell_wmi_check_descriptor_buf
 		dev_warn(&wdev->dev, "Dell descriptor buffer has unknown version (%lu)\n",
 			(unsigned long) buffer[2]);
 
-	if (buffer[3] != 4096)
-		dev_warn(&wdev->dev, "Dell descriptor buffer has invalid buffer length (%d)\n",
-			buffer[3]);
-
 	priv->interface_version = buffer[2];
 	ret = 0;