From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D826BC4708C for ; Fri, 28 May 2021 09:03:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9905613AB for ; Fri, 28 May 2021 09:03:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234967AbhE1JEq (ORCPT ); Fri, 28 May 2021 05:04:46 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:47525 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234769AbhE1JEp (ORCPT ); Fri, 28 May 2021 05:04:45 -0400 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id E32895C00E0; Fri, 28 May 2021 05:03:10 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute5.internal (MEProxy); Fri, 28 May 2021 05:03:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm3; bh=mh3fTq3LL6ePkQBIb8dgtOORA3c LBd7cZgXGZpGlTjU=; b=eRJt57hJ2+NiPQdgh18nKKgj5UBLyDZUk/3+45jKSPd SCbpc6zulK1edubthk1QWpFdIyWBfHMrF0sRxdBXub5vld/YyZXwdRylPtCXZXlu ZEusdwBW3hJPtBGo6UwdqSAoMqsuOGUt2CgMiilfKC69Z5eLnInxQ/HQmn0WzNaJ yCGCVkGljOQ2UHDUZ4on5IQ4LCk/WARx+C73Aj18cATwHMh29GWhmWz+iriBXNAH WMJEaBzF/7qzkmRsU/9Pc5oRATRiLCtI+oT4na1lnwXteGbWVa5RTEJzIC+VYVFX KeZgwgtqp+QrEPQ9lLFsPCrScrJZ73gfBaKrbfhlaxQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=mh3fTq 3LL6ePkQBIb8dgtOORA3cLBd7cZgXGZpGlTjU=; b=YT2Ql/sJh0kqvMqlwxAbQA ONFsexWQKUY5nAohrqA57wguJbqbfCVxjrOsk0lcdn1dPxh3rbqczXQwUBTox3ky Fpx55u6GXmJbG3aR9POBvfEF4QImSYhFgkgXhYeShulAUKnDLPwd+J1Nwv3ahh9v RSx6CAuY2LEs1kcsSaVxP4q9V7/gsR/fAqUVdvOvYvCQ/PvkFa3BG14yC0IG+mYd 7ilBbgrGG8KCDZcClvc4euV4cx0c5lGz6uT/iC4+g4u/s0XJ3eE+skyKabWdxDcW MGDVu2hF/sJoYQGeP2V3qVyGplUVV0IDRnBApacyMVuK2tWVevL/iclCzRJ3N3BQ == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrvdekjedgudduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvuffkfhggtggujgesthdtre dttddtvdenucfhrhhomhepifhrvghgucfmjfcuoehgrhgvgheskhhrohgrhhdrtghomheq necuggftrfgrthhtvghrnhepveeuheejgfffgfeivddukedvkedtleelleeghfeljeeiue eggeevueduudekvdetnecukfhppeekfedrkeeirdejgedrieegnecuvehluhhsthgvrhfu ihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepghhrvghgsehkrhhorghhrdgtoh hm X-ME-Proxy: Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 28 May 2021 05:03:09 -0400 (EDT) Date: Fri, 28 May 2021 11:03:06 +0200 From: Greg KH To: Douglas Su Cc: "rust-for-linux@vger.kernel.org" Subject: Re: How rust subsystem handles long symbols of rust function Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org On Fri, May 28, 2021 at 01:48:00PM +0800, Douglas Su wrote: > I am recently playing around with the Rust subsystem in Kernel, and > notice that the symbols generated from Rust relevant functions are > longer than normal C counterparts. > > If I am not wrong, Kernel imposes symbol length restriction on > functions and variables. So, what efforts have been made to make > Rust's symbols compatible with Kernel's rule? If you look at the rust kernel patchset, it increases the length of the kernel symbol length "rules" for this very reason. thanks, greg k-h