linux-kernel - Re: [PATCH v2 10/19] OpenRISC: System calls

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Date:	Tue, 5 Jul 2011 17:39:34 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonas Bonn <jonas@...thpole.se>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH v2 10/19] OpenRISC: System calls

On Saturday 02 July 2011, Jonas Bonn wrote:
> +
> +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
> +                         unsigned long prot, unsigned long flags,
> +                         unsigned long fd, unsigned long pgoff)
> +{
> +       return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
> +}
> +
> +asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
> +                        unsigned long prot, unsigned long flags,
> +                        unsigned long fd, off_t pgoff)
> +{
> +       if (pgoff & ~PAGE_MASK)
> +               return -EINVAL;
> +
> +       return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
> +}

You shouldn't really need these two. Either provide just sys_mmap2,
or "#define sys_mmap2 sys_mmap_pgoff" and change your user implementation.

	Arnd
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