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From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 1/4]: Move __set/clear_bit from ubifs.h to bitops.h
Date: Thu, 20 Aug 2009 14:55:12 -0400	[thread overview]
Message-ID: <200908201455.13785.vapier@gentoo.org> (raw)
In-Reply-To: <20090820183145.C1D67833DBD2@gemini.denx.de>

On Thursday 20 August 2009 14:31:45 Wolfgang Denk wrote:
> Mike Frysinger wrote:
> > > +#define __set_bit(nr, addr) generic_set_bit(nr, addr)
> > > +
> > > +#define __clear_bit(nr, addr) generic_clear_bit(nr, addr)
> >
> > this is just silly to put into every arch header.  why not do in the
> > common code:
> > #ifndef __set_bit
> > # define __set_bit generice_set_bit
> > #endif
>
> Because it doesn't work?
>
> The code usually looks like this: "static inline void __set_bit(...)..."
>
> This defines a static inline function, but _not_ a preprocessor
> variable of that name.

i know what the code looks like.  the obvious extensions was that the arches 
would do something like:
#define __set_bit __set_bit
to indicate that they have their own replacement
-mike
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  reply	other threads:[~2009-08-20 18:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-20  8:49 [U-Boot] [PATCH v2 0/4]: bitops cleanup and fixes Simon Kagstrom
2009-08-20  8:52 ` [U-Boot] [PATCH v2 1/4]: Move __set/clear_bit from ubifs.h to bitops.h Simon Kagstrom
2009-08-20 17:44   ` Mike Frysinger
2009-08-20 18:31     ` Wolfgang Denk
2009-08-20 18:55       ` Mike Frysinger [this message]
2009-08-21  6:05     ` Simon Kagstrom
2009-08-21  6:29       ` Mike Frysinger
2009-08-21  7:03         ` Simon Kagstrom
2009-08-20  8:53 ` [U-Boot] [PATCH v2 2/4]: Make arm bitops endianness-independent Simon Kagstrom
2009-08-20  8:53 ` [U-Boot] [PATCH v2 3/4]: Define ffs/fls for all architectures Simon Kagstrom
2009-08-20  8:53 ` [U-Boot] [PATCH v2 4/4]: Define test_and_set_bit and test_and_clear bit for ARM Simon Kagstrom

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