From patchwork Sat May 15 05:24:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= X-Patchwork-Id: 1478798 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4Fhv5r18m7z9sW5 for ; Sat, 15 May 2021 15:26:56 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Fhv5r0rPfz3ckm for ; Sat, 15 May 2021 15:26:56 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=209.85.208.52; helo=mail-ed1-f52.google.com; envelope-from=kswilczynski@gmail.com; receiver=) Received: from mail-ed1-f52.google.com (mail-ed1-f52.google.com [209.85.208.52]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Fhv3K736Cz2yWr for ; Sat, 15 May 2021 15:24:45 +1000 (AEST) Received: by mail-ed1-f52.google.com with SMTP id di13so870838edb.2 for ; Fri, 14 May 2021 22:24:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=NDGawuhAJJmz73B7uj32A5EHuzQVuuXCnB1idlmDenc=; b=TvVlWAkUEkLcDcotYAbAHiKgQeEo6nXfj4W4MOaWJnpV6E01KfkRUuV6kL9jF1h0Wl zapOhlUN6/PmowdTfXcQysUqgNSj1ZlIQT6Bko50z2sUWc7RrBUYFEHAIxKH7+oLfpKb nG9HVIMmf+T573Z9XIRt3MbPfROA0xvXk2Rre3Wf4kJUZGWbzyeNbZa3YWrzRlBQOoAY r8PrMia1gZ99wj8FmP56sajQN7gEitplC0vs1yKeEGwIpyjcJ1qZAcrwo9QFma1NgR5R Ucy+UnuDTwKmX0aqoMlUoinrk0XZyAojYFMFCCU/tknYG2Uo1FzLRp24NO/lwEmPsPqk N0cA== X-Gm-Message-State: AOAM531etf81a0EsqOQ2ZollHrtnKx4nMmQbJjMTzTuiLXNLJ4GwJbpb VouVBzzpv94/GQLTaddixvE= X-Google-Smtp-Source: ABdhPJzcnqJKKGPYI8WdNfgX818BwDGlEuupjGLdvu+Xy2bDDyUqLFOB8dxZzlqJlTMV6KHDrrBVZQ== X-Received: by 2002:a50:fe8c:: with SMTP id d12mr60525536edt.336.1621056282857; Fri, 14 May 2021 22:24:42 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id kt21sm4821487ejb.5.2021.05.14.22.24.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 May 2021 22:24:42 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Subject: [PATCH v2 07/14] PCI/ASPM: Use sysfs_emit() and sysfs_emit_at() in "show" functions Date: Sat, 15 May 2021 05:24:27 +0000 Message-Id: <20210515052434.1413236-7-kw@linux.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210515052434.1413236-1-kw@linux.com> References: <20210515052434.1413236-1-kw@linux.com> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tyrel Datwyler , linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Vidya Sagar , Oliver O'Halloran , Joe Perches , Paul Mackerras , Kurt Schwemmer , Logan Gunthorpe , Xiongfeng Wang Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The sysfs_emit() and sysfs_emit_at() functions were introduced to make it less ambiguous which function is preferred when writing to the output buffer in a device attribute's "show" callback [1]. Convert the PCI sysfs object "show" functions from sprintf(), snprintf() and scnprintf() to sysfs_emit() and sysfs_emit_at() accordingly, as the latter is aware of the PAGE_SIZE buffer and correctly returns the number of bytes written into the buffer. No functional change intended. [1] Documentation/filesystems/sysfs.rst Related to: commit ad025f8e46f3 ("PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions") Signed-off-by: Krzysztof Wilczyński --- drivers/pci/pcie/aspm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index ac0557a305af..013a47f587ce 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1208,7 +1208,7 @@ static ssize_t aspm_attr_show_common(struct device *dev, struct pci_dev *pdev = to_pci_dev(dev); struct pcie_link_state *link = pcie_aspm_get_link(pdev); - return sprintf(buf, "%d\n", (link->aspm_enabled & state) ? 1 : 0); + return sysfs_emit(buf, "%d\n", (link->aspm_enabled & state) ? 1 : 0); } static ssize_t aspm_attr_store_common(struct device *dev, @@ -1265,7 +1265,7 @@ static ssize_t clkpm_show(struct device *dev, struct pci_dev *pdev = to_pci_dev(dev); struct pcie_link_state *link = pcie_aspm_get_link(pdev); - return sprintf(buf, "%d\n", link->clkpm_enabled); + return sysfs_emit(buf, "%d\n", link->clkpm_enabled); } static ssize_t clkpm_store(struct device *dev,