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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B5EABC433E0 for ; Thu, 11 Feb 2021 19:03:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DF0364DE3 for ; Thu, 11 Feb 2021 19:03:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231217AbhBKSzf (ORCPT ); Thu, 11 Feb 2021 13:55:35 -0500 Received: from mail1.protonmail.ch ([185.70.40.18]:62144 "EHLO mail1.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230353AbhBKSyP (ORCPT ); Thu, 11 Feb 2021 13:54:15 -0500 Date: Thu, 11 Feb 2021 18:53:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail; t=1613069613; bh=yJJMTncfQhh58ye6yAPpr/XHKg/skCQ3mD0O/lX7vIM=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=RL0w/hod3XyE63H6gn9VU1ijlK7SMvba6yX79+nhb3qdmgweYAQQSmUZ/STLj+nFo oiWp0iWJ3U7nzZZxQOPjP3bCb/bAtI6Y8KYrabAssbYwQ0IWmyVLmg5Ajln4lgmIS8 Ab5iDr/iuwaVbepvqzjheT/53MJcsxuCVNgGHPn6lWEFJAKKHaSqUTRY2cs29Mz23D YL7Ce5G/x6onPjBLMCGheKUGwrEm/dbjq9aaoygnVwAWhIXrHJIMJ+TxRkaD5jz/Sc dqqR9ueRW+QKSmfc5ztPoDYCZdX2zmpNb9U/U3A1PStT2a7n5lyCSoAM3ZERtvj2zU Pqk2YmMHBJYRw== To: "David S. Miller" , Jakub Kicinski From: Alexander Lobakin Cc: Jonathan Lemon , Eric Dumazet , Dmitry Vyukov , Willem de Bruijn , Alexander Lobakin , Randy Dunlap , Kevin Hao , Pablo Neira Ayuso , Jakub Sitnicki , Marco Elver , Dexuan Cui , Paolo Abeni , Jesper Dangaard Brouer , Alexander Duyck , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Taehee Yoo , Cong Wang , =?utf-8?Q?Bj=C3=B6rn_T=C3=B6pel?= , Miaohe Lin , Guillaume Nault , Yonghong Song , zhudi , Michal Kubecek , Marcelo Ricardo Leitner , Dmitry Safonov <0x7f454c46@gmail.com>, Yang Yingliang , Florian Westphal , Edward Cree , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Reply-To: Alexander Lobakin Subject: [PATCH v5 net-next 03/11] skbuff: make __build_skb_around() return void Message-ID: <20210211185220.9753-4-alobakin@pm.me> In-Reply-To: <20210211185220.9753-1-alobakin@pm.me> References: <20210211185220.9753-1-alobakin@pm.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org __build_skb_around() can never fail and always returns passed skb. Make it return void to simplify and optimize the code. Signed-off-by: Alexander Lobakin --- net/core/skbuff.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 70289f22a6f4..c7d184e11547 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -120,8 +120,8 @@ static void skb_under_panic(struct sk_buff *skb, unsign= ed int sz, void *addr) } =20 /* Caller must provide SKB that is memset cleared */ -static struct sk_buff *__build_skb_around(struct sk_buff *skb, -=09=09=09=09=09 void *data, unsigned int frag_size) +static void __build_skb_around(struct sk_buff *skb, void *data, +=09=09=09 unsigned int frag_size) { =09struct skb_shared_info *shinfo; =09unsigned int size =3D frag_size ? : ksize(data); @@ -144,8 +144,6 @@ static struct sk_buff *__build_skb_around(struct sk_buf= f *skb, =09atomic_set(&shinfo->dataref, 1); =20 =09skb_set_kcov_handle(skb, kcov_common_handle()); - -=09return skb; } =20 /** @@ -176,8 +174,9 @@ struct sk_buff *__build_skb(void *data, unsigned int fr= ag_size) =09=09return NULL; =20 =09memset(skb, 0, offsetof(struct sk_buff, tail)); +=09__build_skb_around(skb, data, frag_size); =20 -=09return __build_skb_around(skb, data, frag_size); +=09return skb; } =20 /* build_skb() is wrapper over __build_skb(), that specifically @@ -210,9 +209,9 @@ struct sk_buff *build_skb_around(struct sk_buff *skb, =09if (unlikely(!skb)) =09=09return NULL; =20 -=09skb =3D __build_skb_around(skb, data, frag_size); +=09__build_skb_around(skb, data, frag_size); =20 -=09if (skb && frag_size) { +=09if (frag_size) { =09=09skb->head_frag =3D 1; =09=09if (page_is_pfmemalloc(virt_to_head_page(data))) =09=09=09skb->pfmemalloc =3D 1; --=20 2.30.1