From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932107AbcDKNWw (ORCPT ); Mon, 11 Apr 2016 09:22:52 -0400 Received: from mga11.intel.com ([192.55.52.93]:22300 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754992AbcDKNWu (ORCPT ); Mon, 11 Apr 2016 09:22:50 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,462,1455004800"; d="asc'?scan'208";a="952524336" From: Felipe Balbi To: Roger Quadros Cc: tony@atomide.com, Joao.Pinto@synopsys.com, sergei.shtylyov@cogentembedded.com, peter.chen@freescale.com, jun.li@freescale.com, grygorii.strashko@ti.com, yoshihiro.shimoda.uh@renesas.com, nsekhar@ti.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Subject: Re: [PATCH v6 02/10] usb: dwc3: omap: Make the wrapper interrupt shared In-Reply-To: <570BA375.2040203@ti.com> References: <1460374506-9779-1-git-send-email-rogerq@ti.com> <1460374506-9779-3-git-send-email-rogerq@ti.com> <87h9f8ny14.fsf@intel.com> <570B9DB9.8050807@ti.com> <87zit0mhdy.fsf@intel.com> <570BA375.2040203@ti.com> User-Agent: Notmuch/0.21+96~g9bbc54b (http://notmuchmail.org) Emacs/25.0.90.3 (x86_64-pc-linux-gnu) Date: Mon, 11 Apr 2016 16:20:35 +0300 Message-ID: <87twj8mgd8.fsf@intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, Roger Quadros writes: > On 11/04/16 15:58, Felipe Balbi wrote: >>=20 >> Hi, >>=20 >> Roger Quadros writes: >>>>> diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-oma= p.c >>>>> index 22e9606..51ca098 100644 >>>>> --- a/drivers/usb/dwc3/dwc3-omap.c >>>>> +++ b/drivers/usb/dwc3/dwc3-omap.c >>>>> @@ -274,19 +274,25 @@ static irqreturn_t dwc3_omap_interrupt(int irq,= void *_omap) >>>>> { >>>>> struct dwc3_omap *omap =3D _omap; >>>>> u32 reg; >>>>> + int ret =3D IRQ_NONE; >>>>>=20=20 >>>>> reg =3D dwc3_omap_read_irqmisc_status(omap); >>>>>=20=20 >>>>> + if (reg) >>>>> + ret =3D IRQ_HANDLED; >>>> >>>> you can avoid the local variable by returning early here. >>> >>> How can we return early? we need to check irq0_status as well right? >>=20 >> Oh, that's true. >>=20 >> There's one thing that I noticed though. dma_status is only written to, >> never read, so you should be able to remove it completely (a bit >> off-topic, sorry). >>=20 > I'll send a patch for that. Can it go in -rc as well along with the other= 2? probably not, as it's not fixing any bug ;-) =2D-=20 balbi --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJXC6SjAAoJEIaOsuA1yqREIJcQAI4xneqvdf6eKoefISlTnoBZ HO7bVYsyF9WlIZhNQtWT5Fc19nXg3KZWx1EwLWmxSRNb1XWVruXp40+F6XSyNOBy Ak0oM1K4xEHhc9jh1a9nWr8XypAbxz7/Vfsu3sW1QtG+hjmjbQCN/7g3Fp2j+6eC Y2u52O/mWjeUhKwGvKbGCEy5d4yv/LCLYB67dMF0AKoCW265dxt6XlMBDZWiwv1T wdUHiRm+VKG5GYGURW+abjwkimT6rRDhiagJRG+m5JheYMUYisoV2wCS7odOjHLu 7nzDHFj/UQ0Ng9kFcRu6YKam+RTltzCfbezMRRvKYyL0GtqkSvnFyAu08Z7B12OP cAH9YvpH2Swr9Xn5bM8bebAGKJeyv2TL8uZndOi/7szv/McMhgzZBmM4RKVWwRg9 IBNBPayQWw6hE8nL9kRxkNKUaOdf1eRDONJr3US6Kv4Jf+DTwdgYhNfEmDmO6jbc 13F1wNSROCoTR0vlEqyeKMrzpHhuRSkSRCtJvlxHh7MUjYmwzlznHs+Or8c3E/RN 0bHHWZQiNb1OgHuyzvI8zlyI4Hs1DEPAbc2oIcDn9bnWQoJRAlFtmwKSNdZzftTD 5rUE7/yeBKw26Don+iJJDHw7LRBxwwOxgN+ARnibbettZRDyWbVmyzFaAgnxaqaJ xIq8pYnhdCK70zkeOfrE =Pn8O -----END PGP SIGNATURE----- --=-=-=--