[U-Boot] [PATCH 1/4] COMMON: Add __stringify() function

[Albert ARIBAUD <albert.u.boot@aribaud.net>]

Hi Marek,

On Sun, 23 Sep 2012 20:21:54 +0200, Marek Vasut <marex@denx.de> wrote:

> Dear Albert ARIBAUD,
> 
> > Hi Marek,
> > 
> > On Sun, 23 Sep 2012 17:41:22 +0200, Marek Vasut <marex@denx.de> wrote:
> > > Copied from Linux kernel:
> > > commit 8f7c2c37319a81ef4c2bfdec67b1ccd5744d97e4
> > > Date:   Wed Apr 8 16:58:57 2009 +0800
> > > 
> > > This function converts static number to string in preprocessor.
> > > This is useful as it allows higher usage of puts() in favour of printf()
> > 
> > Fix commit message: this fonction is not limited to numbers.
> 
> WFM, can you review the series please ?

Sorry, should have mentioned that apart from this, the series looks
fine to me. FWIW:

Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

> > > Signed-off-by: Marek Vasut <marex@denx.de>
> > > Cc: Wolfgang Denk <wd@denx.de>
> > > ---
> > > 
> > >  include/common.h          |    1 +
> > >  include/linux/stringify.h |   12 ++++++++++++
> > >  2 files changed, 13 insertions(+), 0 deletions(-)
> > >  create mode 100644 include/linux/stringify.h
> > > 
> > > diff --git a/include/common.h b/include/common.h
> > > index 55025c0..9937a57 100644
> > > --- a/include/common.h
> > > +++ b/include/common.h
> > > @@ -39,6 +39,7 @@ typedef volatile unsigned char	vu_char;
> > > 
> > >  #include <linux/bitops.h>
> > >  #include <linux/types.h>
> > >  #include <linux/string.h>
> > > 
> > > +#include <linux/stringify.h>
> > > 
> > >  #include <asm/ptrace.h>
> > >  #include <stdarg.h>
> > >  #if defined(CONFIG_PCI) && (defined(CONFIG_4xx) &&
> > >  !defined(CONFIG_AP1000))
> > > 
> > > diff --git a/include/linux/stringify.h b/include/linux/stringify.h
> > > new file mode 100644
> > > index 0000000..841cec8
> > > --- /dev/null
> > > +++ b/include/linux/stringify.h
> > > @@ -0,0 +1,12 @@
> > > +#ifndef __LINUX_STRINGIFY_H
> > > +#define __LINUX_STRINGIFY_H
> > > +
> > > +/* Indirect stringification.  Doing two levels allows the parameter to
> > > be a + * macro itself.  For example, compile with -DFOO=bar,
> > > __stringify(FOO) + * converts to "bar".
> > > + */
> > > +
> > > +#define __stringify_1(x...)	#x
> > > +#define __stringify(x...)	__stringify_1(x)
> > > +
> > > +#endif	/* !__LINUX_STRINGIFY_H */
> > 
> > Amicalement,
> 
> Best regards,
> Marek Vasut

Amicalement,
-- 
Albert.