From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1EI7kM-0001EA-Vp for user-mode-linux-devel@lists.sourceforge.net; Wed, 21 Sep 2005 09:47:02 -0700 Received: from [151.97.230.9] (helo=ssc.unict.it) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1EI7kL-0001oa-IN for user-mode-linux-devel@lists.sourceforge.net; Wed, 21 Sep 2005 09:47:03 -0700 From: "Paolo 'Blaisorblade' Giarrusso" Message-Id: <20050921164028.30500.13294.stgit@zion.home.lan> In-Reply-To: <200509211822.17590.blaisorblade@yahoo.it> References: <200509211822.17590.blaisorblade@yahoo.it> Subject: [uml-devel] [PATCH 09/10] uml: comment about cast build fix Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 21 Sep 2005 18:40:29 +0200 To: Linus Torvalds Cc: Jeff Dike , user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org From: Paolo 'Blaisorblade' Giarrusso Explain why the casting we do to silence this warning is indeed safe. It is because the field we're casting from, though being 64-bit wide, was filled with a pointer in first place by ourselves. Signed-off-by: Paolo 'Blaisorblade' Giarrusso --- arch/um/os-Linux/aio.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c --- a/arch/um/os-Linux/aio.c +++ b/arch/um/os-Linux/aio.c @@ -144,6 +144,7 @@ static int aio_thread(void *arg) "errno = %d\n", errno); } else { + /* This is safe as we've just a pointer here. */ aio = (struct aio_context *) (long) event.data; if(update_aio(aio, event.res)){ do_aio(ctx, aio); ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel