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Subject[PATCH v9 04/17] platform/x86: dell-wmi: allow 32k return size in the descriptor
Date
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>
Reviewed-by: Edward O'Callaghan <quasisec@google.com>
---
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..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]);

--
2.14.1
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