On Thu 14-03-19 23:45:48, Alexey Dobriyan wrote:
> Use %lx, save a cast.
> 
> "addr" is userspace address so using (and mangling) pointer was never
> necessary.

There shouldn't be any mangling AFAIU. Documentation for pointer()
says

 * - 'x' For printing the address. Equivalent to "%lx".

> 
> Signed-off-by: Alexey Dobriyan <[email protected]>
> ---
> 
>  fs/binfmt_elf.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- a/fs/binfmt_elf.c
> +++ b/fs/binfmt_elf.c
> @@ -376,8 +376,8 @@ static unsigned long elf_map(struct file *filep, unsigned 
> long addr,
>               map_addr = vm_mmap(filep, addr, size, prot, type, off);
>  
>       if ((type & MAP_FIXED_NOREPLACE) && map_addr == -EEXIST)
> -             pr_info("%d (%s): Uhuuh, elf segment at %px requested but the 
> memory is mapped already\n",
> -                     task_pid_nr(current), current->comm, (void *)addr);
> +             pr_info("%d (%s): Uhuuh, elf segment at %lx requested but the 
> memory is mapped already\n",
> +                     task_pid_nr(current), current->comm, addr);
>  
>       return(map_addr);
>  }

-- 
Michal Hocko
SUSE Labs

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