From patchwork Wed Oct 5 01:47:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Aring X-Patchwork-Id: 12998824 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7F58C433FE for ; Wed, 5 Oct 2022 01:48:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229764AbiJEBsT (ORCPT ); Tue, 4 Oct 2022 21:48:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229754AbiJEBsS (ORCPT ); Tue, 4 Oct 2022 21:48:18 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79817233AD for ; Tue, 4 Oct 2022 18:48:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664934496; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=ZT2Bh5EJ8aDTIXWP41xEUHi99QpNsHb85YXZNNPYgmw=; b=W37uGhZ3QrpnKuYF/bVXb7eKN9EzAjeMBa1DZs86RQvjxrqhUxF8Fw6cHeZVmH3cOkCfn7 CSrvD1frHNaOhFK9NwoG7r/cDqiSK4QFQpa7yW5Y0du++HTQS+SSFlkHRTNgasdO8sC0ze Xqp5GY81q53fzjN1/CWevmEny5y2JYI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-639-ImFFczhCON6UZDfk9e67MQ-1; Tue, 04 Oct 2022 21:48:13 -0400 X-MC-Unique: ImFFczhCON6UZDfk9e67MQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 24169800B30; Wed, 5 Oct 2022 01:48:13 +0000 (UTC) Received: from fs-i40c-03.fs.lab.eng.bos.redhat.com (fs-i40c-03.fs.lab.eng.bos.redhat.com [10.16.224.23]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2877940C6EC2; Wed, 5 Oct 2022 01:48:09 +0000 (UTC) From: Alexander Aring To: penguin-kernel@i-love.sakura.ne.jp Cc: stefan@datenfreihafen.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, aahringo@redhat.com Subject: [PATCH net 1/2] Revert "net/ieee802154: reject zero-sized raw_sendmsg()" Date: Tue, 4 Oct 2022 21:47:49 -0400 Message-Id: <20221005014750.3685555-1-aahringo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org This reverts commit 3a4d061c699bd3eedc80dc97a4b2a2e1af83c6f5. There is a v2 which does return zero if zero length is given. Signed-off-by: Alexander Aring --- net/ieee802154/socket.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index cbd0e2ac4ffe..7889e1ef7fad 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -251,9 +251,6 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) return -EOPNOTSUPP; } - if (!size) - return -EINVAL; - lock_sock(sk); if (!sk->sk_bound_dev_if) dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);