Re: [PATCH] fs, coda: Fix compile warning when CONFIG_SYSCTL=n.

From: Rakib Mullick
Date: Mon Mar 14 2011 - 23:27:55 EST


On Tue, Mar 15, 2011 at 4:34 AM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Sun, 13 Mar 2011 21:48:23 +0600
> Rakib Mullick <rakib.mullick@xxxxxxxxx> wrote:
>
> These do/while stubs should not have the trailing ";" - adding them
> will cause breakage in some calling scenarios.
>
I missed that, these stubs are not used by anything. I wasn't sure,
who knows, some random config might trigger some more warning. So I
kept it.

> It is much better to implement such stubs in C rather than as macros.
>
I'll remember.

> But these stubs can't be doing anything useful anyway: they appear at
> the end of a .c file which wasn't #included by anything.  Therefore:
>
> --- a/fs/coda/sysctl.c~fs-coda-fix-compile-warning-when-config_sysctl=n-fix
> +++ a/fs/coda/sysctl.c
> @@ -61,9 +61,4 @@ void coda_sysctl_clean(void)
>                fs_table_header = NULL;
>        }
>  }
> -#else
> -
> -#define        coda_sysctl_init()              do { }  while (0);
> -#define        coda_sysctl_clean()             do { }  while (0);
> -
>  #endif
> _
>
>
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