[PATCH v6 04/14] platform/x86: dell-wmi: allow 32k return size in the descriptor

From: Mario Limonciello
Date: Mon Oct 09 2017 - 18:56:24 EST


Some platforms this year will be adopting 32k WMI buffer, so don't
complain when encountering those.

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

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index ece2fe341f01..c8c7f4f9326c 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 (desc_buffer[3] != 4096 && desc_buffer[3] != 32768)
dev_warn(&wdev->dev, "Dell descriptor buffer has invalid buffer length (%u)\n",
buffer[3]);

--
2.14.1