On Wed, 2013-09-18 at 20:27 -0500, Daniel Santos wrote:
> if I use ERR_PTR() on a signed int on a x86_64 where pointer
> is 64 bits and int is 32, wouldn't that mean a signed conversion
> instruction where the sign bit has to be moved from bit 31 to 63?
No. It's cast to long
static inline void * __must_check ERR_PTR(long error)
{
return (void *) error;
}
> Either way, %pE does seem to make a lot of sense for conditions where we
> already have a pointer that we would otherwise use PTR_ERR() to convert,
> but it just seems klunky to use it on an int, to have it treated like a
> pointer and then re-interpreted as an int. Maybe we can add %pE as well
> as %dE and leave [ioxXu] out of it?
I think having just one way to format is better.
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