From patchwork Mon May 18 17:37:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 225742 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 AD1ABC433DF for ; Mon, 18 May 2020 18:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8837C20671 for ; Mon, 18 May 2020 18:05:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589825105; bh=YejrB3xnXuLpOQRytvCx3Nvljyswk4AfYXxt6KjMsK0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HMv4PRk2gfbSo9ODznDnYARbrddgDKxzqyXHtIDmVGwgHpkPCzBT8Atgz6uCGdoCJ uRrIYZdmAR+NDeCIDyPwS0DwZLoBT8rp01WHfkC3DjX0IoUqo75MV7hRkbCJ2/RhLV +rFv4DxBGEyGT+J4zdCVQEYsAzByLglCR+9GdM50= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732430AbgERSFE (ORCPT ); Mon, 18 May 2020 14:05:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:52458 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732880AbgERSFD (ORCPT ); Mon, 18 May 2020 14:05:03 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6E0DC207F5; Mon, 18 May 2020 18:05:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589825102; bh=YejrB3xnXuLpOQRytvCx3Nvljyswk4AfYXxt6KjMsK0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KlBSQbuF6aSO3VaPewjYpfTl0R1mKZS1vxNT2FQZNv87Dw1ZpBoUhKEujURbcB6Kq BWYh18Y7KNh+VQ9XAl/jPQZ4yrhV/ZWTHofMWLOCuWaQ+KTT37OOQctm2/QZCvLOO+ OIgmbw1Qk9mfzR/801zOBGAlrEtbNCkSaBSQwMMM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Linus Torvalds Subject: [PATCH 5.6 131/194] gcc-10 warnings: fix low-hanging fruit Date: Mon, 18 May 2020 19:37:01 +0200 Message-Id: <20200518173542.369782651@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200518173531.455604187@linuxfoundation.org> References: <20200518173531.455604187@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Linus Torvalds commit 9d82973e032e246ff5663c9805fbb5407ae932e3 upstream. Due to a bug-report that was compiler-dependent, I updated one of my machines to gcc-10. That shows a lot of new warnings. Happily they seem to be mostly the valid kind, but it's going to cause a round of churn for getting rid of them.. This is the really low-hanging fruit of removing a couple of zero-sized arrays in some core code. We have had a round of these patches before, and we'll have many more coming, and there is nothing special about these except that they were particularly trivial, and triggered more warnings than most. Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- include/linux/fs.h | 2 +- include/linux/tty.h | 2 +- scripts/kallsyms.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -978,7 +978,7 @@ struct file_handle { __u32 handle_bytes; int handle_type; /* file identifier */ - unsigned char f_handle[0]; + unsigned char f_handle[]; }; static inline struct file *get_file(struct file *f) --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -66,7 +66,7 @@ struct tty_buffer { int read; int flags; /* Data points here */ - unsigned long data[0]; + unsigned long data[]; }; /* Values for .flags field of tty_buffer */ --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -34,7 +34,7 @@ struct sym_entry { unsigned int len; unsigned int start_pos; unsigned int percpu_absolute; - unsigned char sym[0]; + unsigned char sym[]; }; struct addr_range {