powerpc/kernel: Print actual address of regs when oopsing

[Michael Ellerman]

On Thu, 2018-01-11 at 02:21:35 UTC, Michael Ellerman wrote:
> When we oops or otherwise call show_regs() we print the address of the
> regs structure. Being able to see the address is fairly useful,
> firstly to verify that the regs pointer is not completely bogus, and
> secondly it allows you to dump the regs and surrounding memory with a
> debugger if you have one.
> 
> In the normal case the regs will be located somewhere on the stack, so
> printing their location discloses no further information than printing
> the stack pointer does already.
> 
> So switch to %px and print the actual address, not the hashed value.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc fixes.

https://git.kernel.org/powerpc/c/182dc9c7f217146d69d9c0b75c150c

cheers