Re: [PATCH] cosa.h ioctl numbers

From: Andreas Schwab
Date: Thu Dec 02 2004 - 11:46:58 EST


Jan Kasprzak <kas@xxxxxxxxxx> writes:

> I do not understand. The _IOW() macro just uses sizeof(_third_argument)
> both on 2.4 and 2.6.

Yes, and 2.4 uses sizeof in the third argument, thus size_t is the most
natural replacement.

> I would rather have the 2.6 ioctl numbers the same as in 2.1-2.4.

You get that when you use size_t for the type, which also gives some hint
that the old definition was an unfortunate mistake and might prevent other
people from "fixing" it again. Putting a pointer here just adds to the
confusion and should be avoided, IMHO.

Andreas.

--
Andreas Schwab, SuSE Labs, schwab@xxxxxxx
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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