From patchwork Sat May 15 05:24:21 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: 1478792 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 4Fhv3c27dLz9sWC for ; Sat, 15 May 2021 15:25:00 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Fhv3c1sYRz2yYP for ; Sat, 15 May 2021 15:25:00 +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=209.85.218.43; helo=mail-ej1-f43.google.com; envelope-from=kswilczynski@gmail.com; receiver=) Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) (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 4Fhv3F1D4Xz2xg5 for ; Sat, 15 May 2021 15:24:40 +1000 (AEST) Received: by mail-ej1-f43.google.com with SMTP id lg14so1565618ejb.9 for ; Fri, 14 May 2021 22:24:40 -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=f/Vo3vzWm4D00TYgfRuuEzVZKXz3CRt/yuqfwwH8YIU=; b=n14uIwRHZNqj+OM6VEX05f45ndXg+Bv/akxtl3aIcDpMfoaamNakctJXX7AAdWWDXV ho1LF4ZPCGaTpYHkgkhn6oNnoVQpQLdX5y2wQss62erGkupeayrCPveBsYMcBJMUUUvt Sbdeoqn9DlM+egVkE5I0kT8AKhiRlhedNKqCldWqh9JgliJV96lP/uejkrl1nxlyGhu+ WsvXY3XcDhGHXTzebX/5IDeBYNUSBF7ws+OPRVQSiL5MGnjFJvKzS2DEx8Pqtj3ZcA5E zJKQMMLahhv6QuwaEW3bXysUT/bFlbHmjfeHsTcj2pmJZklmGn1PhPlMacqUnBwglR8P Bn0w== X-Gm-Message-State: AOAM530uZ3JugM6dklJCS7rE28BVeVOCtmH3c0u2lP681LD3kWoLulGd h9TxDcFvcWp/ZsO5v0u0szM= X-Google-Smtp-Source: ABdhPJwvfP1drkhLOi+o1WZL+eJ9323MVgRNp8o3OCPnzYBWrwDvAHI0LcagZhbnOoFcGoXpLrERxQ== X-Received: by 2002:a17:906:b0d:: with SMTP id u13mr8097847ejg.159.1621056276491; Fri, 14 May 2021 22:24:36 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id kt21sm4821487ejb.5.2021.05.14.22.24.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 May 2021 22:24:35 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Subject: [PATCH v2 01/14] PCI: Use sysfs_emit() and sysfs_emit_at() in "show" functions Date: Sat, 15 May 2021 05:24:21 +0000 Message-Id: <20210515052434.1413236-1-kw@linux.com> X-Mailer: git-send-email 2.31.1 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 Reviewed-by: Logan Gunthorpe 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); /*