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thinkpad-acpi: add new debug helpers and warn of deprecated atts

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Add a debug helper that discloses the TGID of the userspace task
attempting to access the driver.  This is highly useful when dealing
with bug reports, since often the user has no idea that some userspace
application is accessing thinkpad-acpi...

Also add a helper to log warnings about sysfs attributes that are
deprecated.

Use the new helpers to issue deprecation warnings for bluetooth_enable
and wwan_enabled, that have been deprecated for a while, now.

Signed-off-by: Henrique de Moraes Holschuh <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Henrique de Moraes Holschuh 2009-04-04 04:25:47 +00:00 • committed by Len Brown
commit 73a94d86a8
2 changed files with 42 additions and 0 deletions
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Documentation/laptops/thinkpad-acpi.txt
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@ -1484,6 +1484,8 @@ will enable all debugging output classes. It takes a bitmask, so
to enable more than one output class, just add their values.
Debug bitmask Description
0x8000 Disclose PID of userspace programs
accessing some functions of the driver
0x0001 Initialization and probing
0x0002 Removal