linux-kernel - Re: [PATCH 16/28] nios2: System calls handling

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Message-ID: <CAFiDJ58uhQNzzZfpC8k1V628sFD9+GrAAEnHgHM6k1NtxKNGgw@mail.gmail.com>
Date:	Fri, 25 Apr 2014 00:23:21 +0800
From:	Ley Foon Tan <lftan@...era.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	cltang@...esourcery.com
Subject: Re: [PATCH 16/28] nios2: System calls handling

On Tue, Apr 22, 2014 at 8:30 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Friday 18 April 2014, Ley Foon Tan wrote:
>
>> +
>> + #define sys_mmap2 sys_mmap_pgoff
>> +
>
> You use sys_mmap_pgoff here, but
>
>> +asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
>> +                     unsigned long prot, unsigned long flags,
>> +                     unsigned long fd, unsigned long offset)
>> +{
>> +     if (offset & ~PAGE_MASK)
>> +             return -EINVAL;
>> +
>> +     return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
>> +}
>
> define a separate sys_mmap() here. Doing the former should be enough.
> so you can just drop the sys_mmap definition.
Okay, will drop the sys_mmap.

Thanks.
Regards
Ley Foon
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