From patchwork Tue May 18 03:40:56 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: 12263463 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68F0CC433B4 for ; Tue, 18 May 2021 03:41:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 349CA60FF3 for ; Tue, 18 May 2021 03:41:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242773AbhERDmd (ORCPT ); Mon, 17 May 2021 23:42:33 -0400 Received: from mail-lf1-f54.google.com ([209.85.167.54]:44995 "EHLO mail-lf1-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235384AbhERDm3 (ORCPT ); Mon, 17 May 2021 23:42:29 -0400 Received: by mail-lf1-f54.google.com with SMTP id j6so9270961lfr.11 for ; Mon, 17 May 2021 20:41:12 -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:mime-version :content-transfer-encoding; bh=18Y77oCkwmGvKixeQ8r3dtdgUXHABcaq/TVHul58ByE=; b=linMW9O9hMzqlNBzdR6CRNQv8R4XUjW/xZU+g/1tJ4OV8rocIVv86HUSCIgP1CQ7TR pieeNvQs3MOCXiowyR5lVCYhrgPpQWSbrXK+ao8CtmnjnAUiSs+S9MWl4h+th9jpvRSU BKvCxWsvNocLgsNPMV2xhtEg2Q+x763QAJ8qKcTlD0IX0ptojojJy25wQnMSX7jlemTj 7iOCJy0twYFgRoT4SE522HByZ0U9LSQXxqv6DFvuRAvzLNOMBxVG1JFuGGfrcXx9+HUc h3w2TiKVp7A1iAnthslilJebHSYJRnx+Ka8heH9C6Os9w5UmSQCLqNmjz+auEy+pg0R3 HKdQ== X-Gm-Message-State: AOAM53147VUrQKDwE2fYXEAbjXns8j4aFbppeQcqVWZTkvcZCAtyR6Qt 2eXPd9KMZ0R/LGzrV/03rqM= X-Google-Smtp-Source: ABdhPJxoyKiwli9hkNKwxKAvkjbwumSx+iPEA4tkYHM8BczY2J321K7AjH7CzkTfCjq+ZYOK6wJleQ== X-Received: by 2002:a05:6512:1194:: with SMTP id g20mr404875lfr.407.1621309271509; Mon, 17 May 2021 20:41:11 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id j23sm419112lfm.276.2021.05.17.20.41.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 May 2021 20:41:10 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: Logan Gunthorpe , Joe Perches , "Oliver O'Halloran" , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Tyrel Datwyler , Russell Currey , Kurt Schwemmer , Vidya Sagar , Xiongfeng Wang , linux-pci@vger.kernel.org Subject: [PATCH v3 01/14] PCI: Use sysfs_emit() and sysfs_emit_at() in "show" functions Date: Tue, 18 May 2021 03:40:56 +0000 Message-Id: <20210518034109.158450-1-kw@linux.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org 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 Reviewed-by: Logan Gunthorpe --- Changes in v2: None. Changes in v3: Added Logan Gunthorpe's "Reviewed-by". drivers/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b717680377a9..5ed316ea5831 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6439,7 +6439,7 @@ static ssize_t resource_alignment_show(struct bus_type *bus, char *buf) spin_lock(&resource_alignment_lock); if (resource_alignment_param) - count = scnprintf(buf, PAGE_SIZE, "%s", resource_alignment_param); + count = sysfs_emit(buf, "%s", resource_alignment_param); spin_unlock(&resource_alignment_lock); /*