linux-kernel - [PATCH] thinkpad-acpi: fix module autoloading for older models

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Message-ID: <20090314104204.GA11226@mobydick>
Date:	Sat, 14 Mar 2009 11:42:04 +0100
From:	Mathieu Chouquet-Stringer <mchouque@...e.fr>
To:	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org
Cc:	Len Brown <lenb@...nel.org>, ibm-acpi-devel@...ts.sourceforge.net,
	linux-acpi@...r.kernel.org, stable@...nel.org,
	Henrique de Moraes Holschuh <hmh@....eng.br>
Subject: [PATCH] thinkpad-acpi: fix module autoloading for older models

	Hello Linus,

Looks like this one liner patch never made it...  Hopefully, it'll go in
before you release rc9 or 2.6.29.

Best,
Mathieu

----- Forwarded message from Henrique de Moraes Holschuh <hmh@....eng.br> -----

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From: Henrique de Moraes Holschuh <hmh@....eng.br>
To: Len Brown <lenb@...nel.org>
Cc: ibm-acpi-devel@...ts.sourceforge.net, linux-acpi@...r.kernel.org,
	Mathieu Chouquet-Stringer <mchouque@...e.fr>, stable@...nel.org
Subject: [PATCH] thinkpad-acpi: fix module autoloading for older models
Date: Sun, 15 Feb 2009 10:25:51 -0300
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From: Mathieu Chouquet-Stringer <mchouque@...e.fr>

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:'

Signed-off-by: Mathieu Chouquet-Stringer <mchouque@...e.fr>
Acked-by: Henrique de Moraes Holschuh <hmh@....eng.br>
Cc: stable@...nel.org
---
 drivers/platform/x86/thinkpad_acpi.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


Len, please consider this for 2.6.29.  It is an obvious one-liner.

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 91ae159..d218ecb 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -7524,7 +7524,7 @@ 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:*");
-- 
1.5.6.5


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