Re: [Y2038] [PATCH 2/2] ppdev: add support for compat ioctl

[Arnd Bergmann]

On Wednesday 09 December 2015 14:39:30 kbuild test robot wrote:
>    671  }
>    672  
>    673  #ifdef CONFIG_COMPAT
>    674  static long pp_compat_ioctl(struct file *file, unsigned int cmd,
>    675                  unsigned long arg)
>    676  {
>  > 677          return pp_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
>    678  }
>    679  #endif
>    680  
> 

This needs

#include <linux/compat.h>

	Arnd
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