Re: [PATCH] sunrpc: eliminate RPC_DEBUG

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On Mon, 06 Apr 2015 16:38:09 +0200
Arnd Bergmann <arnd@xxxxxxxx> wrote:

> On Monday 06 April 2015 10:04:52 Jeff Layton wrote:
> > > diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
> > > index 665ef5a..a563ddb 100644
> > > --- a/fs/lockd/svcsubs.c
> > > +++ b/fs/lockd/svcsubs.c
> > > @@ -31,7 +31,7 @@
> > >  static struct hlist_head     nlm_files[FILE_NRHASH];
> > >  static DEFINE_MUTEX(nlm_file_mutex);
> > >  
> > > -#ifdef NFSD_DEBUG
> > > +#ifdef CONFIG_SUNRPC_DEBUG
> > 
> > Technically, you should use #if IS_ENABLED(CONFIG_SUNRPC_DEBUG). That's
> > supposed to help the compiler do checking of the code inside the block
> > even when it's not defined.
> 
> You probably meant the right thing and wrote something else: you should use
> 'if (IS_ENABLED(CONFIG_SUNRPC_DEBUG)) { ... }' to get that effect, but that
> only works within a function. '#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)' is just
> a nicer way to write '#if defined(CONFIG_SUNRPC_DEBUG) || 
> defined(CONFIG_SUNRPC_DEBUG_MODULE)', which is harmless but pointless here
> as the symbol would never be set to 'm'.
> 
> 	Arnd

Ahh ok, good to know. Then this patch is fine as-is then.

Thanks,
-- 
Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
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