From patchwork Mon May 10 04:14:14 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: 12246831 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 69A66C433B4 for ; Mon, 10 May 2021 04:14:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34DC161400 for ; Mon, 10 May 2021 04:14:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229716AbhEJEPb (ORCPT ); Mon, 10 May 2021 00:15:31 -0400 Received: from mail-ej1-f42.google.com ([209.85.218.42]:46023 "EHLO mail-ej1-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229569AbhEJEPa (ORCPT ); Mon, 10 May 2021 00:15:30 -0400 Received: by mail-ej1-f42.google.com with SMTP id u3so22359114eja.12 for ; Sun, 09 May 2021 21:14:26 -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=yG00XpORYp9fWIwYNYumtIx0DbQmOEgAaM8O8RiTCBg=; b=CTeo8yihqPBKptTIS4VrnFCam1mQrl36s83kUffXVhXgjXX4d2+4oZswdBq6ZZb2Jk 6yCz2w1Nfu4ZfpSMuA/uuuqL3ZxPRbYQqpyTaA37iRr1ICsom13m91T586eRhASd8PXB cxQ/4tkScLyTtd3hQQ43NUChTGLS8PptNPI4t3+oqEQOxPn3CszLqccETnvqy10Bpsnf x2EutTwbQnSg/m3wLvka3pdbUac+rCongE7OAouWGiAvN96LAcqYYlIMfYOXtjmO9nMh WE7Y0wIh8ES142Sl594fbGPkDfgDrU8lw0fjpnVgyAdAuuAQz87sVQI/iqKZoPmjHS0t gw3Q== X-Gm-Message-State: AOAM5338sy4wMibbrZhV4yuhcOlG7YQytpjbocOTG8D0100vKgkoZLKo +fFZG1B5fhMD6OwZxvHM0/M= X-Google-Smtp-Source: ABdhPJyJeQPSRJV9jJWYAjEQGkNIBh1uh1Jil7dgPsc1o2RkXPUJpNn61pvdKGmYpGTBlGGSR+C90w== X-Received: by 2002:a17:907:7216:: with SMTP id dr22mr23759582ejc.185.1620620065913; Sun, 09 May 2021 21:14:25 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id e4sm8165006ejh.98.2021.05.09.21.14.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 09 May 2021 21:14:25 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: "Oliver O'Halloran" , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Tyrel Datwyler , Russell Currey , Kurt Schwemmer , Logan Gunthorpe , linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 01/11] PCI: Use sysfs_emit() and sysfs_emit_at() in "show" functions Date: Mon, 10 May 2021 04:14:14 +0000 Message-Id: <20210510041424.233565-1-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 --- 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); /*