Received: by 2002:a05:6359:c8b:b0:c7:702f:21d4 with SMTP id go11csp1524109rwb; Fri, 23 Sep 2022 14:07:01 -0700 (PDT) X-Google-Smtp-Source: AMsMyM6b9oF+5emtuzgm9pGi17w9yGfoNF/OcbjiEM0UreBBroS+ddjaDqhlelxxq2zkvr3c8nrQ X-Received: by 2002:a63:5d4e:0:b0:41d:2966:74e7 with SMTP id o14-20020a635d4e000000b0041d296674e7mr9052320pgm.526.1663967221604; Fri, 23 Sep 2022 14:07:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1663967221; cv=none; d=google.com; s=arc-20160816; b=ut84sT05c5gnQlLoVvYxcNtJ+0nFP1b/0bV08E5AbnYQaHOhL7DsZ//UAzmuog37t6 eLDSlNPGlybeWvACavN5cFfJCydZb/r00zmzLiRD0/Xjb9idOtkjYh2nWvrfpAmve2Lz PISmtBwadJyYC81Hs7hsS7VoHMysVrp1bfzCUrl+ai93v2LE94wY1qJmZylwpmha6Msu OIhm3eAl/+8e450KlstV7a2M586434y8qiCn2AzrwEPZ2KrQsShFwNlq6+AohV0kMhPx En1qt4+0ZrlzNy74D2YlUrI4a9y39WwqqlZjHDDfGaDX6fSTy6RPVsOcRxuI9/hBWafK E4nQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=91mEpspGROP1Bxnk32+FmTIuy+A9uYPDvsM5BjwIlj8=; b=IxR8LzvV4UwBOETsDYc4kkC8joNJW/oeuyHPcp/sEvyLzbgiXFySJIK7vDVc0BRNbi Nm/OODrZUnsIexyD1GIVvljz31wArcNYf0YyYT6gKaBTaEuRrmBdCdYjts8UA0eZgyE3 A5biOvxAQ7L4ZrHycWeurMstZrmtbsKXWcCDdQIpT0GGqIm5vtkAInQyfh2zKI/kUUfY xtp9idxVJYVPy2VC0M3VCnSTXbuevlUOiQLThrmXizCrfYA+HToJ9Ox3l+CsZdHq5cT9 00lbz8HJ1lJ+8iVFcyhQxUyR1RDeD7z89Mc4eIoviYoBqmKDm/nGDogXpDUjuMmLXIDv Q5Bg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=gEdnve3p; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id u70-20020a638549000000b00439f66e23cfsi10590970pgd.9.2022.09.23.14.06.49; Fri, 23 Sep 2022 14:07:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=gEdnve3p; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232299AbiIWVE4 (ORCPT + 99 others); Fri, 23 Sep 2022 17:04:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231253AbiIWVEx (ORCPT ); Fri, 23 Sep 2022 17:04:53 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4EEC2F3B6; Fri, 23 Sep 2022 14:04:51 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id lh5so3071282ejb.10; Fri, 23 Sep 2022 14:04:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date; bh=91mEpspGROP1Bxnk32+FmTIuy+A9uYPDvsM5BjwIlj8=; b=gEdnve3pkxAhEmVpz7ZPRVM9Tn5sR8zT98UZCGv/Zi7KbuhGPpaZebclX7GKHU3M3m OnSrpCb2ZGGfcNSl8joN/E0WoIUwDwxnaALTjL17rWhrQo8Xz8SImW6B+lp11n//N5PV kAdCOViLjESwaZQGRHFjxb9qiktbR1SRbpc/oRXONLIzzq1VnxGAVH+o62jl1WOJNLqv +1DfERTWC/ptN8BwVDjp5Z0wcXpxwausPew1mDlcFwVI8izn5cyTnQoMkTvEZkipznkI +B/pmNdTykePLF7Qd6V8u+iUcNWfJWnFBGA5g294rc08Bk1P+vUsRlmKVGslfSK3lC5Y LOyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=91mEpspGROP1Bxnk32+FmTIuy+A9uYPDvsM5BjwIlj8=; b=tRR8+Whqi+WFlFv28Mrg6FDakQfT13da2CWpgZ4PeAR8WyB9Zykwm9hJYJaf6EeRQX nIh0owHrtZ3uTchCn+4IGVAIRM4TURUM1zPoHCN5j4vgKylL/BQzLM3wsz8joX4QK7qZ 1d6x3xGbiZVkEBUA/QJSs646T+c6rcNoKzW2U0GyQ4SEKfuttKbAqjBwbrmVrO5eWsvZ Hjfdc2mZAxK/ZJrGCegvCN1eK6lyn00UtW1tD9w27J4kSS/7c4xCCNIqQ0o89PRnRvB9 85W8N8GKZcdm9xTk4dMlQ1qCRr9yakYc2zHxeAvBCzG+L1Iz4LdGj0Hm7stxPho1DIjB Sp/Q== X-Gm-Message-State: ACrzQf3w+ZATowZCEGVnyj7NALTntIqNtZGKSmTgsW8S39cqOMg+YraJ VQBUJWqMoCJ1C2kzYQ9NMNYjF4eFZhSvjjcbNbMFtS1tTF4YeBM8 X-Received: by 2002:a17:906:4fd2:b0:781:320f:b779 with SMTP id i18-20020a1709064fd200b00781320fb779mr8561180ejw.59.1663967090140; Fri, 23 Sep 2022 14:04:50 -0700 (PDT) MIME-Version: 1.0 References: <20220923063533.239315-1-ye.xingchen@zte.com.cn> In-Reply-To: <20220923063533.239315-1-ye.xingchen@zte.com.cn> From: Han Jingoo Date: Fri, 23 Sep 2022 14:04:38 -0700 Message-ID: Subject: Re: [PATCH linux-next] backlight: lp8788: use sysfs_emit() to instead of scnprintf() To: cgel.zte@gmail.com Cc: lee@kernel.org, daniel.thompson@linaro.org, deller@gmx.de, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, ye xingchen Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 22, 2022 wrote: > > From: ye xingchen > > Replace the open-code with sysfs_emit() to simplify the code. > > Signed-off-by: ye xingchen Acked-by: Jingoo Han Best regards, Jingoo Han > --- > drivers/video/backlight/lp8788_bl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c > index ba42f3fe0c73..00d79c0cfee9 100644 > --- a/drivers/video/backlight/lp8788_bl.c > +++ b/drivers/video/backlight/lp8788_bl.c > @@ -240,7 +240,7 @@ static ssize_t lp8788_get_bl_ctl_mode(struct device *dev, > else > strmode = "Invalid mode"; > > - return scnprintf(buf, PAGE_SIZE, "%s\n", strmode); > + return sysfs_emit(buf, "%s\n", strmode); > } > > static DEVICE_ATTR(bl_ctl_mode, S_IRUGO, lp8788_get_bl_ctl_mode, NULL); > -- > 2.25.1