[PATCH 4/5] Use %p in format for pointers

Sascha Hauer s.hauer at pengutronix.de
Fri Oct 14 03:22:21 EDT 2011


On Fri, Oct 14, 2011 at 09:18:50AM +0200, Sascha Hauer wrote:
> On Fri, Oct 14, 2011 at 12:06:40AM +0200, Loïc Minier wrote:
> > res->start and res->size are resource_type_t which is a phys_addr_t
> > which itself could someday be a 64-bits pointer (for instance when
> > building sandbox on a 64-bits host).  Instead of hardcoding %08x as a
> > format for pointers, use the %p format.
> > 
> > Signed-off-by: Loïc Minier <loic.minier at linaro.org>
> > ---
> >  drivers/base/driver.c |    4 ++--
> >  1 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/base/driver.c b/drivers/base/driver.c
> > index 0b80103..515ff8d 100644
> > --- a/drivers/base/driver.c
> > +++ b/drivers/base/driver.c
> > @@ -349,8 +349,8 @@ static int do_devinfo(struct command *cmdtp, int argc, char *argv[])
> >  			printf("num   : %d\n", i);
> >  			if (res->name)
> >  				printf("name  : %s\n", res->name);
> > -			printf("start : 0x%08x\nsize  : 0x%08x\n",
> > -			       res->start, res->size);
> > +			printf("start : 0x%p\nsize  : 0x%p\n",
> > +			       (void *)res->start, (void *)res->size);
> 
> With this patch I get the following warning on a 64bit host:
> 
> drivers/base/driver.c: In function ‘do_devinfo’:
> drivers/base/driver.c:353:11: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> drivers/base/driver.c:353:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> 
> We should probably set CONFIG_PHYS_ADDR_T_64BIT correctly on a 64bit
> host.

Should have read your introductory mail more closely :-/

Sascha


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