#define acpi_driver_data(d) ((d)->driver_data)
... very nice for obfuscating code ...
Pavel
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On Sat, Jan 18, 2003 at 10:31:34PM +0100, Pavel Machek wrote:
>
> #define acpi_driver_data(d) ((d)->driver_data)
>
> ... very nice for obfuscating code ...
sysfs-based buses use <foo>_{get,set}_drvdata, which looks exactly the
same as this here.
Jeff
Hi!
> > #define acpi_driver_data(d) ((d)->driver_data)
> >
> > ... very nice for obfuscating code ...
>
> sysfs-based buses use <foo>_{get,set}_drvdata, which looks exactly the
> same as this here.
I think such wrappers are really bad idea, see for example this: I
thought "what kind of cleverness is going on here,", and it was very
simple in fact.
else {
entry->proc_fops = &acpi_thermal_state_fops;
entry->data = acpi_driver_data(device);
}
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On Sat, 18 Jan 2003, Pavel Machek wrote:
> #define acpi_driver_data(d) ((d)->driver_data)
>
> ... very nice for obfuscating code ...
This is usually called "abstraction" and allows you to change
the data structures (when needed) without breaking all the code.
You can learn from this. If swsusp used abstractions it wouldn't
need to have to stick its nose into the code and data structures
from other subsystems and it might even stop breaking every other
release.
cheers,
Rik
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