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platform/x86: wmi: Use ACPI device name in netlink event

Message ID 20240121194647.10540-1-W_Armin@gmx.de (mailing list archive)
State Superseded, archived
Headers show
Series platform/x86: wmi: Use ACPI device name in netlink event | expand

Commit Message

Armin Wolf Jan. 21, 2024, 7:46 p.m. UTC 
The device name inside the ACPI netlink event is limited to
15 characters, so the WMI device name will get truncated.

This can be observed with kacpimon when receiving an event
from WMI device "9DBB5994-A997-11DA-B012-B622A1EF5492":

	netlink:  9DBB5994-A997- 000000d0 00000000

Fix this by using the shorter device name from the ACPI
bus device instead. This still allows users to uniquely
identify the WMI device by using the notify id (0xd0).

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--
2.39.2
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Patch

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index a7cfcbf92432..4bacbe71cdb6 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -1202,7 +1202,7 @@  static int wmi_notify_device(struct device *dev, void *data)
 	}

 	acpi_bus_generate_netlink_event(wblock->acpi_device->pnp.device_class,
-					dev_name(&wblock->dev.dev), *event, 0);
+					dev_name(&wblock->acpi_device->dev), *event, 0);

 	return -EBUSY;
 }