From patchwork Fri Sep 14 02:30:35 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 1455131 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (unknown [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id AD85BDF24C for ; Fri, 14 Sep 2012 02:42:44 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TCLg5-0005di-Mf; Fri, 14 Sep 2012 02:30:45 +0000 Received: from mail-qa0-f49.google.com ([209.85.216.49]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TCLfz-0005bo-3m for linux-arm-kernel@lists.infradead.org; Fri, 14 Sep 2012 02:30:43 +0000 Received: by qafk1 with SMTP id k1so2449379qaf.15 for ; Thu, 13 Sep 2012 19:30:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=1jHk8rvtqhf8+cMHRHgtFoMhhPitY5HryHDij5iP8wc=; b=ylTLZhiJnS05QWDevPyi5TyUKum5eq94IORJAV5Ht7vFLyxo+fBnkcmTWvznWtfEcr JJ12JTWV7T8sBWs/GkUOFTyO14xnFzo3gAsYxOYIx6Ky1qI25ks143bpnvvuKFgwo5TA R6QcOBMbHiRHnGSl849TmiCr1tW/quvcs6ZgL30MI2v4CAc0uJJ3i/TqZSFcGAA+nOBb nv7aDOqe4GxmlW88FBepqtfC11GYoNN8QUmqz9JzoqQwhHMSHjFLp117Oecvd//hjDmh DOXkJQtvxuN/76zCGcILDoaf6Ecj1v+MzkPnNvINk2OL36WC/faOjffdYKVuV47AJJsz 30Iw== MIME-Version: 1.0 Received: by 10.229.106.84 with SMTP id w20mr868220qco.1.1347589835708; Thu, 13 Sep 2012 19:30:35 -0700 (PDT) Received: by 10.229.146.194 with HTTP; Thu, 13 Sep 2012 19:30:35 -0700 (PDT) Date: Fri, 14 Sep 2012 10:30:35 +0800 Message-ID: Subject: [PATCH] ARM: at91/gpio: using for_each_set_bit to simplify the code From: Wei Yongjun To: linux@maxim.org.za, nicolas.ferre@atmel.com, plagnioj@jcrosoft.com, linux@arm.linux.org.uk X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (weiyj.lk[at]gmail.com) -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.216.49 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: yongjun_wei@trendmicro.com.cn, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Wei Yongjun Using for_each_set_bit() to simplify the code. spatch with a semantic match is used to found this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun --- arch/arm/mach-at91/gpio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index be42cf0..ed6ed8c 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -609,10 +609,8 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) continue; } - n = find_first_bit(&isr, BITS_PER_LONG); - while (n < BITS_PER_LONG) { + for_each_set_bit(n, &isr, BITS_PER_LONG) { generic_handle_irq(irq_find_mapping(at91_gpio->domain, n)); - n = find_next_bit(&isr, BITS_PER_LONG, n + 1); } } chained_irq_exit(chip, desc);