Re: [PATCH 2.6.32-rc3] fix pcpu_embed_first_chunk() compile warnings

[Tejun Heo <tj@kernel.org>]

Mikael Pettersson wrote:
> Compiling 2.6.32-rc3 on i686 I get the following new warnings:
> 
> mm/percpu.c: In function 'pcpu_embed_first_chunk':
> mm/percpu.c:1873: warning: comparison of distinct pointer types lacks a cast
> mm/percpu.c:1879: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'size_t'
> 
> They are caused by 6ea529a2037ce662fc6bfa572b46d47407d08805
> "make embedding first chunk allocator check vmalloc space size".
> 
> The first warning is because max() is applied to one operand of
> type 'size_t' and another of type 'unsigned long'. Fix: cast the
> second one to 'size_t'.
> 
> For the second warning: always use '%z' to format 'size_t' operands.
> 
> Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>

For some reason, I've been thinking this was linux-next specific and
committed about the same patch there, commit 3cbeae2f, a while ago.
The only difference was use of max_t() instead of size_t cast.  I
think max_t() is cleaner there and will cherry pick the patch from
linux-next.

Thanks.

-- 
tejun