linux-kernel - [PATH] No Thinkpad Module Autoloading On T30

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Message-ID: <20090214223407.GA3367@mobydick>
Date:	Sat, 14 Feb 2009 23:34:07 +0100
From:	Mathieu Chouquet-Stringer <mchouque@...e.fr>
To:	ibm-acpi@....eng.br
Cc:	ibm-acpi-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATH] No Thinkpad Module Autoloading On T30

	Hello,

I'm running 2.6.29-rc5 on my aging T30 laptop (2366-21U) and just
realized thinkpad_acpi wasn't loaded.

Looking at the source, there seems to be a missing * to match my DMI
string.  I mean for newer IBM and Lenovo's laptops you match either one
of the following:
MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");

While for older Thinkpads, you do this (for instance):
IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");

with IBM_BIOS_MODULE_ALIAS being MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")

Note there's no * terminating the string.  As result, udev doesn't load
anything because modprobe cannot find anything matching this (my
machine actually):

udevtest: run: '/sbin/modprobe dmi:bvnIBM:bvr1IET71WW(2.10):bd06/16/2006:svnIBM:pn236621U:pvrNotAvailable:rvnIBM:rn236621U:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:'

So here's my contribution...

Best,

Signed-off-by: Mathieu Chouquet-Stringer <mchouque@...e.fr>
---
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index bcbc051..70e702a 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -7532,7 +7532,7 @@ MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
  * if it is not there yet.
  */
 #define IBM_BIOS_MODULE_ALIAS(__type) \
-	MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
+	MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
 
 /* Non-ancient thinkpads */
 MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
--
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