From nobody Thu Apr 2 09:12:27 2026 Received: from out-173.mta0.migadu.com (out-173.mta0.migadu.com [91.218.175.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BE01C279346 for ; Mon, 9 Mar 2026 22:45:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773096332; cv=none; b=KEoEEn4bEn7h0f+otIKqhHi4leXteIEd5iUjlsmRuCRdXJC5AbHrJxtYZ3+TF6bfjWdfjJzKeuJgHlZDwoGf28JXM50kLzxzth/ZOe9L7Vw9knRTiz2WISdHszmSx7xUFli+lEpFbBeeHzHWIAmAMk8M0uvPnnKZZJyUOfudmto= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773096332; c=relaxed/simple; bh=tlFL8ChItjemz0vXXsv/W+8TvOqaR2U36ov7vwpCF1E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=lzekyjUmGtWA99ngZDBp07dZSCE1z39Kb2WIy5XHWC7CETyST+bCIz+3idLH/A72+w83w7GOTlNE/jU7ER2pv0Rufv0Ft7UcCRCkSQjfp8K+TkDEBPhtXY6obhjes1q0qI2DW6kY0WUdDXIay+lmazDigFPj58EuDurb+WURjv8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=AnUlRFlI; arc=none smtp.client-ip=91.218.175.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="AnUlRFlI" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1773096328; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Yo/vp8ckmH5+wr7xeteGlSDNMbPclc1e9B0ZY6/l4EE=; b=AnUlRFlIUHKhXIdh3PpTQU+0VjJuInLFsAanJqife4rCOQiEYUjzXIu326+wFVoktTZTkz 1eSl2UTWwLAUIcwPTTUUHAnKmaa6tMJSVKjbL1fyspHSaxcMt44zKOlHADcHmQRdLBrfva oxcfwvdiGjZn9B9NRND6LjD3+XiifDs= From: Thorsten Blum To: "David S. Miller" , Andreas Larsson , Thorsten Blum , Kees Cook Cc: sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH RESEND] sparc: vio: Use sysfs_emit in sysfs show functions Date: Mon, 9 Mar 2026 23:44:45 +0100 Message-ID: <20260309224444.84851-3-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1872; i=thorsten.blum@linux.dev; h=from:subject; bh=tlFL8ChItjemz0vXXsv/W+8TvOqaR2U36ov7vwpCF1E=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDJnrfWPuiJw5uMPncETlldK9a469/bMgcErloWdLvk+wc lNw3Jp7oKOUhUGMi0FWTJHlwawfM3xLayo3mUTshJnDygQyhIGLUwAmojab4Z92WnBQ+aNzjZwZ qk3znl5vEJ1xpPneTevF/6Z3BwlOZJzPyLDcNrZjx5wdV3+/Tc954bHh0hOtD/JMtqdENBrjLmd WJfIBAA== X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" Replace sprintf() and scnprintf() with sysfs_emit() in sysfs show functions. sysfs_emit() is preferred to format sysfs output as it provides better bounds checking. Signed-off-by: Thorsten Blum --- arch/sparc/kernel/vio.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 8b4f55047716..b7b06752a038 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -121,7 +122,7 @@ static ssize_t devspec_show(struct device *dev, else if (!strcmp(vdev->type, "vdc-port")) str =3D "vdisk"; =20 - return sprintf(buf, "%s\n", str); + return sysfs_emit(buf, "%s\n", str); } static DEVICE_ATTR_RO(devspec); =20 @@ -129,7 +130,7 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct vio_dev *vdev =3D to_vio_dev(dev); - return sprintf(buf, "%s\n", vdev->type); + return sysfs_emit(buf, "%s\n", vdev->type); } static DEVICE_ATTR_RO(type); =20 @@ -138,7 +139,7 @@ static ssize_t modalias_show(struct device *dev, struct= device_attribute *attr, { const struct vio_dev *vdev =3D to_vio_dev(dev); =20 - return sprintf(buf, "vio:T%sS%s\n", vdev->type, vdev->compat); + return sysfs_emit(buf, "vio:T%sS%s\n", vdev->type, vdev->compat); } static DEVICE_ATTR_RO(modalias); =20 @@ -192,7 +193,7 @@ show_pciobppath_attr(struct device *dev, struct device_= attribute *attr, vdev =3D to_vio_dev(dev); dp =3D vdev->dp; =20 - return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp); + return sysfs_emit(buf, "%pOF\n", dp); } =20 static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH,