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SubjectRe: [PATCH] kconfig: Only generate config_is_xxx for bool and tristate options
On Wed, May 18, 2011 at 07:16:45AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 21:53 Tue 17 May , Sam Ravnborg wrote:
> > On Tue, May 17, 2011 at 05:35:32PM +0200, Michal Marek wrote:
> > > For strings and integers, the config_is_xxx macros are useless and
> > > sometimes misleading:
> > >
> > > #define CONFIG_INITRAMFS_SOURCE ""
> > > #define config_is_initramfs_source() 1
> >
> > I'm late with this comment....
> > Could we introduce "config_is_foo" using a syntax that
> > does not break grepability?
> >
> > Maybe a syntax like this?
> >
> > #ifdef CONFIG_FOO
> >
> > and
> >
> > if (KCONFIG_FOO())
> >
> > Grepping for the use of a symbol is a very typical thing,
> > so we should try to keep this.
> > And with the suggested syntax above I expect fixdep to
> > catch up both usage types.
> I'll prefer kconfig_foo()
> not uppercase
>
> but if we use KCONFIG_FOO no need to touch fixdep

fixdep is easy to fix - albeit it may cost a bit of processing time.
wht I worry much more about is users that miss uses of CONFIG_ symbols, because
they do not show up in "git grep CONFIG_FOO".

Using "if (KCONFIG_FOO()) users are also awre this is a configuration
decided condition - which is nice to stand out.
Sam


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