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Date: Sat, 28 Sep 2002 23:23:26 -0700 (PDT)
Message-Id: <20020928.232326.43409659.davem@redhat.com>
To: arvind_gopalan@yahoo.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: 4 byte mem alignment
From: "David S. Miller" <davem@redhat.com>
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   From: Arvind Gopalan <arvind_gopalan@yahoo.com>
   Date: Sat, 28 Sep 2002 23:26:46 -0700 (PDT)

   how strong the requirements are for copy_to_user().
   does it fault to byte-by-byte mode gracefully when
   given a non-4byte aligned buffer?.

The x86 processor handles unaligned memory accesses in hw.

On any platform, copy_to_user() must handle any user and kernel buffer
alignment.