From patchwork Sat May 20 17:05:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 100231 Delivered-To: patch@linaro.org Received: by 10.140.96.100 with SMTP id j91csp799625qge; Sat, 20 May 2017 10:07:12 -0700 (PDT) X-Received: by 10.99.114.3 with SMTP id n3mr16645791pgc.130.1495300032582; Sat, 20 May 2017 10:07:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1495300032; cv=none; d=google.com; s=arc-20160816; b=SvHyJ5rTI8M3QGRAGP9EBf1USKuG495EF2dMrBeQ9MAvj3nIuWn9cOtkUmpTZekXp+ tc96wR+hyBfTb4Tung7U6Y3FwE2NvrNrHB1MD72Bd6ofixwcNACbAr64sOvuRwerox/R Cr4MCwp2un+/V2CObUmOgui/YEHP5WrdsXPr+IuKD2/MA2nHj6huDo2RY3x1xW5dW2kE lhP4AbAgP5+8yKmHGiWrsVS+h+RVw9ltXkGPYKXVi+SH00+KN87E+qZpegRucBjMzVl1 AR1cKqTf81v6L6RACXJGDHlJvLZC48T4ecQt4c5YBVqPVbz4Rafn+9reclP+8zap8Eav ZXTg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature:dkim-filter:arc-authentication-results; bh=n0HcsfyTyL9tP748tiNaXRBdr4J1fJ3vMuO02o44Smc=; b=rJT0xz6ya67mq05o0HBIRQCdNn9KBisWQOEbJekhPln4uRvwFiDRZePrsHpB7wFQ63 Lu6BtBX5Iv5SZcJj8gqdfQapbyjqsBQUP0F/Xnw64FDROWfUC0SMZBSDeErIjxNOGSoI 6TUcvMtvxchq8ME+YnVoFcSqgPipCIQcowB23E6DCtgmRnlCr10i+8A43qTlk2TCuC4J jcR5clVjQC1yxjY00rDSx7lpru74QnAAkGa9Rg9a6coxBPx7WwGWjrbMY31AYO6Vst1j hmzEMf8J/QothNsabzYCwCKylM9vh0nbbJ854z6Dr3RPixDaaXPfeGMiD+f8yOisgCZu F5tw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@nifty.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g8si11881294plk.293.2017.05.20.10.07.12; Sat, 20 May 2017 10:07:12 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756082AbdETRG4 (ORCPT + 25 others); Sat, 20 May 2017 13:06:56 -0400 Received: from conuserg-07.nifty.com ([210.131.2.74]:39965 "EHLO conuserg-07.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751813AbdETRGy (ORCPT ); Sat, 20 May 2017 13:06:54 -0400 Received: from grover.sesame (FL1-111-169-71-157.osk.mesh.ad.jp [111.169.71.157]) (authenticated) by conuserg-07.nifty.com with ESMTP id v4KH6HsI002440; Sun, 21 May 2017 02:06:21 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-07.nifty.com v4KH6HsI002440 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1495299981; bh=n0HcsfyTyL9tP748tiNaXRBdr4J1fJ3vMuO02o44Smc=; h=From:To:Cc:Subject:Date:From; b=tOFOCnjjdBCkNpdzzG2TOJ44O9KPqBm2umTsBb5ZRscghzyMWcEDmF8x/pQUe0WVw 4wO9z+Pz6GnX9tFY1YSf5sDwqn3L0dP5XGdajZE95LYWRh8Ls27SnzW3E7gRcwvjv+ DPFyXjH+qMmRZD7KEOYhnXw9s54wCW24eB/SXjQFc3wIZpRYIrYXdmuPsT799MMJMI rYuafF0pVQfk4lGxJL3we6tTG2FayKUA7F9U1ihHt4R3eSqVM9ncAlvofPiGAzvhy8 HB6dLBh6vfMddC3OGJ9rTYzVNbRJhZJ0f63TONhrqv1J4pPEhYYzFz6hXUYiDSiDPU Zi1m129iBoSWw== X-Nifty-SrcIP: [111.169.71.157] From: Masahiro Yamada To: linux-usb@vger.kernel.org Cc: Masahiro Yamada , Greg Kroah-Hartman , Chunfeng Yun , linux-kernel@vger.kernel.org Subject: [PATCH] usb: mtu3: cleanup with list_first_entry_or_null() Date: Sun, 21 May 2017 02:05:31 +0900 Message-Id: <1495299931-10418-1-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The combo of list_empty() and list_first_entry() can be replaced with list_first_entry_or_null(). Signed-off-by: Masahiro Yamada --- drivers/usb/mtu3/mtu3.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) -- 2.7.4 diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index aa6fd6a..7b6dc23 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -356,12 +356,8 @@ static inline struct mtu3_ep *to_mtu3_ep(struct usb_ep *ep) static inline struct mtu3_request *next_request(struct mtu3_ep *mep) { - struct list_head *queue = &mep->req_list; - - if (list_empty(queue)) - return NULL; - - return list_first_entry(queue, struct mtu3_request, list); + return list_first_entry_or_null(&mep->req_list, struct mtu3_request, + list); } static inline void mtu3_writel(void __iomem *base, u32 offset, u32 data)