[PATCH] mm/ARM: fix ARMs __ffs() to conform to avoid warning with NO_BOOTMEM

[linux@arm.linux.org.uk (Russell King - ARM Linux)]

On Fri, Dec 20, 2013 at 05:39:25PM -0500, Santosh Shilimkar wrote:
> Russell,
> 
> On Friday 13 December 2013 07:38 PM, Santosh Shilimkar wrote:
> > Building ARM with NO_BOOTMEM generates below warning.
> > 
> > mm/nobootmem.c: In function _____free_pages_memory___:
> > mm/nobootmem.c:88:11: warning: comparison of distinct pointer types lacks a cast
> > 
> > 	order = min(MAX_ORDER - 1UL, __ffs(start));
> > 
> > ARM's __ffs() differs from other architectures in that it ends up being
> > an int, whereas almost everyone else is unsigned long.
> > 
> > So fix ARMs __ffs() to conform to other architectures. Suggested by
> > Russell King <linux@arm.linux.org.uk>
> > 
> > Some more details in below thread -
> > 	https://lkml.org/lkml/2013/12/9/807
> > 
> > Cc: Andrew Morton <akpm@linux-foundation.org>
> > Cc: Russell King <linux@arm.linux.org.uk>
> > Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
> > ---
> Is this patch inline with what we discussed off-list ?

It is.

> If you ack it, it can go into the Andrews tree to kill that one last
> warning with the memblock series. Thanks

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

Please note that I'm rather busy at the moment dealing with a complete
change in networking here (I've not read much in the way of email over
the last couple of days).  Also note that my Internet connection is
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