From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 381D91DD384; Mon, 19 Aug 2024 20:04:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724097869; cv=none; b=g71FiocmpzrNVn9rsSkvFr7+ygE2yumTYNRZjsqD/W7xj1Ng+DpjMKQhbGG+X3WmgXAafZLW93mNet/usXIGWUnWiRrcaB69YfEvJIjnLmGqDMRtEbV9o2hK+aL80sZzKZ4trYaG8ArfVK9Etn+z6pG7kKDC0ghKVD2fikKQgk8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724097869; c=relaxed/simple; bh=JHPFxNsQ4Lx4g8ESNjvQhruhIYWv95GrizKt91YSEwI=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=MUOVAW3873wNpFryyzWqTQ957dh2RSiphIwwsw5uIz9ol0faeWM5u4qsUNbuFQVbOkLq9I39Jru0wjIu5zNwB7qqr5sLKJxSz/ovMwFz/fVzaTDw3VeYBoEhDk/fs4+8heEPY8Myl+dPri8tOHaW7mDW6+j2TbI2bsN3nNPuB+I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W62rgeDt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="W62rgeDt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BBD2BC32782; Mon, 19 Aug 2024 20:04:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724097868; bh=JHPFxNsQ4Lx4g8ESNjvQhruhIYWv95GrizKt91YSEwI=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=W62rgeDt/dBxp7pkJEjR7f80NbpG8EGNBuVNID/AiTzeTIoKMMfgtd6DKTapzlcJF b1sx0GmmrCNYEU16UQl1dhNYorU6j1ER9b9oc30Kza3B7N+DI5V3C1UZDgtiqwOWh7 /PDB1wigUPUSLiCiT/ihRpXM084MYmLenIsKURGN0de9LJwg6gOrK3SYECxkdgN3G+ +ThbSexppK/RLkvD4VegU1OD3cUJbgYCxcdTSQW8sRlKqYsO8dIcWD6TiKcvFGGfBI VibHQhx5/Axba51fqWHx7eOVKNq95ZO/XMLU+1goW5qPiRyrYt0gQvdOnIIujYBhEp 2wBWGiuLU9O8g== Message-ID: Subject: Re: [PATCH 1/3] nfsd: bring in support for delstid draft XDR encoding From: Jeff Layton To: Chuck Lever III Cc: Neil Brown , Dai Ngo , Olga Kornievskaia , Tom Talpey , Trond Myklebust , Anna Schumaker , Tom Haynes , Linux Kernel Mailing List , Linux NFS Mailing List Date: Mon, 19 Aug 2024 16:04:26 -0400 In-Reply-To: <3DB9A299-B55F-45BB-8B28-65F44F14F6A2@oracle.com> References: <20240816-delstid-v1-0-c221c3dc14cd@kernel.org> <20240816-delstid-v1-1-c221c3dc14cd@kernel.org> <172402584064.6062.2891331764461009092@noble.neil.brown.name> <6c5af6011ea9adfd45abe4b5252af7319a3dbc94.camel@kernel.org> <3DB9A299-B55F-45BB-8B28-65F44F14F6A2@oracle.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw 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Evolution 3.52.4 (3.52.4-1.fc40) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Mon, 2024-08-19 at 19:50 +0000, Chuck Lever III wrote: >=20 >=20 > > On Aug 19, 2024, at 9:26=E2=80=AFAM, Jeff Layton > > wrote: > >=20 > > I'm playing with the new version now and it seems to be much > > improved. > > Only two real bugs I've hit at this point: > >=20 > > 1/ Some of the struct specifications need to be typedefs as well. > > For > > instance, the delstid draft refers to "nfstime4", but the > > autogenerated > > struct definition doesn't have the typedef for it. It may be best > > to > > just add typedefs for all of these sorts of structs. >=20 > What's the specific symptom? I've been able to catenate nfs4_1.x > and delstid.x, xdrgen builds the header and source without tossing > any exceptions, and gcc compiles it without complaint. >=20 Basically, I was getting this when I'd convert nfs4_1.x to a header: struct nfstime4 { int64_t seconds; uint32_t nseconds; }; ...but the delstid header has these: typedef nfstime4 fattr4_time_deleg_access; typedef nfstime4 fattr4_time_deleg_modify; ...nothing defined nfstime4 in this case. > AFAICT, xdrgen will add "struct" where it's necessary. >=20 > I've been squirrelly about using "typedef" too often because > the Linux kernel's coding style is to avoid C typedefs for > shorthand structure names. >=20 Oh, ok. I didn't concatenate the files like you did and just generated the delstid files separately from the nfs4_1 ones. I guess that throws off the dependency tracking that you're doing here for typedefs. >=20 > > 2/ xdrgen_encode_nfstime4 want a pointer to the nfstime4, but the > > autogenerated code for xdrgen_encode_fattr4_time_deleg_access and > > xdrgen_encode_fattr4_time_deleg_modify try to pass it by value > > instead. >=20 > Here's my generated copy of xdrgen_encode_fattr_time_deleg_access: >=20 > /* typedef fattr4_time_deleg_access */ > static bool > __maybe_unused=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 > xdrgen_encode_fattr4_time_deleg_access(struct xdr_stream *xdr, const > fattr4_time_deleg_access value) > { > /* (basic) */ > return xdrgen_encode_nfstime4(xdr, &value); > }; >=20 > Looks like it does the right thing...? Probably another side-effect of it not knowing what to do with nfstime4 when I convert the delstid draft. Concatenating them seems unwieldy but I guess that would work. I do like being able to keep generated code from different files separate though. --=20 Jeff Layton