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[v8,04/15] platform/x86: dell-wmi: allow 32k return size in the descriptor

Message ID 5064c5e052e624dba7ac50921d9fc7d767bb6cbe.1507958847.git.mario.limonciello@dell.com (mailing list archive)
State Superseded, archived
Delegated to: Darren Hart
Headers show

Commit Message

Limonciello, Mario Oct. 14, 2017, 5:32 a.m. UTC 
Some platforms this year will be adopting 32k WMI buffer, so don't
complain when encountering those.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
---
 drivers/platform/x86/dell-wmi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index ece2fe341f01..2578dff90a14 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -624,7 +624,7 @@  static void dell_wmi_input_destroy(struct wmi_device *wdev)
  * 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    4096 or 32768
  */
 static int dell_wmi_check_descriptor_buffer(struct wmi_device *wdev)
 {
@@ -674,7 +674,7 @@  static int dell_wmi_check_descriptor_buffer(struct wmi_device *wdev)
 		dev_warn(&wdev->dev, "Dell descriptor buffer has unknown version (%u)\n",
 			buffer[2]);
 
-	if (buffer[3] != 4096)
+	if (buffer[3] != 4096 && buffer[3] != 32768)
 		dev_warn(&wdev->dev, "Dell descriptor buffer has invalid buffer length (%u)\n",
 			buffer[3]);