fs/xfs/xfs_mount.c:1483: warning: array subscript is above array bounds

fs/xfs/xfs_mount.c:1483: warning: array subscript is above array bounds

[Geert Uytterhoeven]

http://kisskb.ellerman.id.au/kisskb/buildresult/407608/:
fs/xfs/xfs_mount.c:1483: warning: array subscript is above array bounds

xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
{
	xfs_sb_field_t  f;

	...
	first = xfs_sb_info[f].offset;
	...
}

xfs_sb_field_t is an enum with 47 values.
xfs_sb_info[] has at least 47 entries.

Is this a bogus warning?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

Re: [xfs-masters] fs/xfs/xfs_mount.c:1483: warning: array subscript is above array bounds

[Christoph Hellwig]

On Tue, May 05, 2009 at 10:05:05AM +0200, Geert Uytterhoeven wrote:
> 
> http://kisskb.ellerman.id.au/kisskb/buildresult/407608/:
> fs/xfs/xfs_mount.c:1483: warning: array subscript is above array bounds
> 
> xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
> {
> 	xfs_sb_field_t  f;
> 
> 	...
> 	first = xfs_sb_info[f].offset;
> 	...
> }
> 
> xfs_sb_field_t is an enum with 47 values.
> xfs_sb_info[] has at least 47 entries.

That's the conclusion I came to.   I also see similar bogus warnings in
a couple of other places in a full kernel build (not in xfs).