On Tue, May 19, 2015, at 11:13, Bjørn Mork wrote:
> The conversion to DEVICE_ATTR_* macros failed to fixup a few cases where
> the old attribute names didn't match the show/store function names.
> Instead of renaming the functions, the attributes were renamed. This
> caused an unintentional API change. The hwmon required 'name' attribute
> were among the renamed attribute, causing libsensors to fail to detect
> the hwmon device at all.
>
> Fixes: b4dd04ac6ef8 ("thinkpad_acpi: use DEVICE_ATTR_* macros")
> Cc: Bastien Nocera <hadess@xxxxxxxxxx>
> Cc: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
> Signed-off-by: Bjørn Mork <bjorn@xxxxxxx>
...
> -static ssize_t hotkey_wakeup_reason_show(struct device *dev,
> +static ssize_t wakeup_reason_show(struct device *dev,
Before, all "hotkey subdriver" functions had the hotkey_ prefix. Now,
we have to intrude into whatever "namespace" an attribute name happens
to clash (in this case, the "wakeup" namespace).
If this is the least horrible way to fix the issue, I will ack it even
if I don't like it. However, if there's a way to do it that would keep
the "hotkey_" prefix in the C side, and only change the rest of the C
function name (if required), I'd rather the fix did that.
Also, the fix needs to go to stable (4.0+).
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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