From patchwork Sat May 15 05:24:30 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: 1478801 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 4Fhv7172SYz9sW5 for ; Sat, 15 May 2021 15:27:57 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Fhv716W9dz3c1T for ; Sat, 15 May 2021 15:27:57 +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=209.85.208.47; helo=mail-ed1-f47.google.com; envelope-from=kswilczynski@gmail.com; receiver=) Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com [209.85.208.47]) (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 4Fhv3P0kpXz307v for ; Sat, 15 May 2021 15:24:49 +1000 (AEST) Received: by mail-ed1-f47.google.com with SMTP id r11so817570edt.13 for ; Fri, 14 May 2021 22:24:48 -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=DdJ+gi3kfx5UscQD8MEmkjatX64t7LAuyBsCWTQVyR4=; b=ra7vo2eOJ/ioEp9D9ubApjEchRuqeD/dMaKbgFIK4m0EP23sUpMrVA5kJ9wafV9oQZ YYX2iyqpeYPn985OFDvtNxC1iPG+X7PhkiTYoT8xSef95QCdMVyQThxbjGDWW+oCoWQY PbcY3RdBOoHWeZjmdpHym6Xxfylet+vV1pVGjEsNGK/lE/n8SR/hbX9QZzcSjYtgczkv 8gRfm3Vw7e1FlyxeRjZfm+wy/DvwHLaYiN/3Sbm1QmKklegBrBhpqMgLn8bZBFTP0lrP FuW3rG6fOaL5SZppPT9NJ3zzVOXmASjgfLZFOa+pD0plFxuRvSFcQ9cGyzmtgoTN9BX7 uMhQ== X-Gm-Message-State: AOAM532JvxVNLnDRvloHh3v881SxyE5dXhiniD+epHwXHvvoUCOuw+oI qz2/aAH9O6cbdhnUAvAj/08= X-Google-Smtp-Source: ABdhPJwUFEaurmP9EKuuMm+T/D2jN40L9mLA9g5wzTrmHUIny74d+EPyB5vutIYIvhUmd0UAv1N90w== X-Received: by 2002:a50:ab06:: with SMTP id s6mr50742980edc.100.1621056285971; Fri, 14 May 2021 22:24:45 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id kt21sm4821487ejb.5.2021.05.14.22.24.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 May 2021 22:24:45 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Subject: [PATCH v2 10/14] PCI: hotplug: Use sysfs_emit() and sysfs_emit_at() in "show" functions Date: Sat, 15 May 2021 05:24:30 +0000 Message-Id: <20210515052434.1413236-10-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/hotplug/pci_hotplug_core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index 5ac31f683b85..058d5937d8a9 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -73,7 +73,7 @@ static ssize_t power_read_file(struct pci_slot *pci_slot, char *buf) if (retval) return retval; - return sprintf(buf, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } static ssize_t power_write_file(struct pci_slot *pci_slot, const char *buf, @@ -130,7 +130,7 @@ static ssize_t attention_read_file(struct pci_slot *pci_slot, char *buf) if (retval) return retval; - return sprintf(buf, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } static ssize_t attention_write_file(struct pci_slot *pci_slot, const char *buf, @@ -175,7 +175,7 @@ static ssize_t latch_read_file(struct pci_slot *pci_slot, char *buf) if (retval) return retval; - return sprintf(buf, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } static struct pci_slot_attribute hotplug_slot_attr_latch = { @@ -192,7 +192,7 @@ static ssize_t presence_read_file(struct pci_slot *pci_slot, char *buf) if (retval) return retval; - return sprintf(buf, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } static struct pci_slot_attribute hotplug_slot_attr_presence = {