From nobody Tue Oct 7 22:58:39 2025 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7907628725B; Fri, 4 Jul 2025 07:26:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751613981; cv=none; b=IkDYad9A4ArxBnWg89DYEiO6nJEJp887DWHR8ExAbPsWTdbQoBfl37C4Ctq2qhzIrBwFyZg4adYSrYPo7M9MWnv+e6L7NVyvM/UwlVadG+WqanaToUa49LG1Ma5Y5OqPVcjl8tGj4EzTF/tr3/EiOSAD46Vd6OkPKMzHmzEmFlE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751613981; c=relaxed/simple; bh=Upigb2pu4dZf0sT6kkLAt84b8rlfCgQMY6Qq/ZtbZrY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dBqhspb5ucFkOTciPzq2UHI4Yjpwer+hwSGvACW3Y7dRufn0/xpxmiw2EGlzdGZRvtiMkIkCGDkjK/YifPbG+tMWeyy8AHQuZCpuaJ9E3ieYB7cqkTFmI18gOYJoV09J6652NMpsySvBVBpGrLgrUvUfUIxgfiyqbVE6aklX0DE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=DmRRxE1i; arc=none smtp.client-ip=209.85.214.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DmRRxE1i" Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-236377f00easo9463695ad.1; Fri, 04 Jul 2025 00:26:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1751613978; x=1752218778; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=kDxuxUDgUgDkcVZdx4yl7cOtfH39Xq3bSHZLoPDyb9E=; b=DmRRxE1iiDZmscjNq9QCo0O4f4e12uCcXfUtLOYi4YCyorEkt9nO6+jsGR+PgTq9jg CXIwNt+hnOXB784FGWPSbTTinY/aOoBl3SUvAZ3XQ1L8LfKtfT3zHEN9MhH8eyr9NBNy 99Pp+LU5pWNJ0m5u2rUD3uOvojsa9ULGqkK4L2815cR3AeRqj5KUyxCHDivOuUSENg6I 5Adq6HOU8KiiX2xGFPENFlAHAZc/H4o+g39gtpxkYYo7e+16U7M5FUO9NQfRndCHaJbM /y0s93I58DjFC7r0QCtOu5TrhhmlsUDqapYdQgvJklCcWg6UszEd8+HefaDleZcrOwIQ /2EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751613978; x=1752218778; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=kDxuxUDgUgDkcVZdx4yl7cOtfH39Xq3bSHZLoPDyb9E=; b=UBpqUr/x2hBjQ2Z1n55xI6RHUndJpAaN/jo0gM6C9hlvvLCbPdBvzpqgSiIciDxdZR 3V0Ng3AlnMRxjtoQFXByXgsS10QRq+ztjBvnKNcMIpljiISjvlu+5HLrck/SfNRoXxh3 a5dprBonBR0inwo6AejTn2Td2RqnHTHX/s6AfJw9QjBUF6PtbkSmVH//uq/EaCG22LPP TAXrlLZ6zTZPNPXACQp0y2og9syFrxmT5KRUicMHx3wUZHyiALx80EC7KSql5bmNItdS X51GfMdTykmsdyt38mPHZmF0cTAF+HGH7uXNaZFKedRjFNuuvU3LjjuA7Dy8IK+iPQDI v9yw== X-Forwarded-Encrypted: i=1; AJvYcCUaSHxrrhR2EkhKGMGOjjvw7xT4o4KzxtFa7ClyJ+QAGpS+gLBIN8SgSMVeu/akvRF8UwIxxHnJTau9Rfs=@vger.kernel.org X-Gm-Message-State: AOJu0YwfwXAtyX4rg4XCyaLthnU51+bmYuuZk4ES8zRBkEeAzMRAf+4P XmR0s01DCiX93LHHyeftZzAdzDiPRvjqzIMz5+OC+nU1KqfvTOEOfAH9kK3J1eO6SKw= X-Gm-Gg: ASbGncuUni6Sbwk88zBR3X9nU2J/08nCankrW/yi1E2feWin1yP3IJCZ9qTo89nWup7 7/gWwLZr68CIm0ZQGHnCWnHFVswyd4ObODN4gHLLR7kReT84yZmun0200NZBf/b31+WbdocXm28 0Vp9B5OvNANpz6+kHXuFO7hFsmxc9O7vbEuGTD5sKa8pSTeBzxKzXGKfTKfkgMSA9BoukCOlE85 SRN4WqURE+US3d9XwwxFTGnxKl4iTcd5V7FXFoBvI+IRjp8bvZvmerh+e1AQp8wL7RhYo3NxSfn YE5+gAmE4Ll4l9xL2SYtPxntiQZOW/Q3NjD2tnCTlRaeTwElA4G12ePZUNRpsiIdDQPyEhP/sVA rZuvR+oiMDyjPnXqm X-Google-Smtp-Source: AGHT+IF868eyucOmTptTbQbUozxpL8rfVAZcdj+zsUMVFE1ZmgFNdh9GJcoKkdvBbd8xKBaEX3JDJw== X-Received: by 2002:a17:902:fc48:b0:235:27b6:a891 with SMTP id d9443c01a7336-23c85e772c8mr31057695ad.28.1751613978318; Fri, 04 Jul 2025 00:26:18 -0700 (PDT) Received: from manjaro.domain.name ([2401:4900:1c30:6f3f:3d1:c4c0:3855:2a18]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23c8455dafcsm13455985ad.96.2025.07.04.00.26.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jul 2025 00:26:17 -0700 (PDT) From: Pranav Tyagi To: linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org Cc: cem@kernel.org, djwong@kernel.org, skhan@linuxfoundation.org, linux-kernel-mentees@lists.linux.dev, Pranav Tyagi , kernel test robot Subject: [PATCH] fs/xfs: replace strncpy with memtostr_pad() Date: Fri, 4 Jul 2025 12:56:04 +0530 Message-ID: <20250704072604.13605-1-pranav.tyagi03@gmail.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace the deprecated strncpy() with memtostr_pad(). This also avoids the need for separate zeroing using memset(). Mark sb_fname buffer with __nonstring as its size is XFSLABEL_MAX and so no terminating NULL for sb_fname. Signed-off-by: Pranav Tyagi Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-lkp/202506300953.8b18c4e0-lkp@intel.com --- fs/xfs/libxfs/xfs_format.h | 2 +- fs/xfs/xfs_ioctl.c | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 9566a7623365..779dac59b1f3 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -112,7 +112,7 @@ typedef struct xfs_sb { uint16_t sb_sectsize; /* volume sector size, bytes */ uint16_t sb_inodesize; /* inode size, bytes */ uint16_t sb_inopblock; /* inodes per block */ - char sb_fname[XFSLABEL_MAX]; /* file system name */ + char sb_fname[XFSLABEL_MAX] __nonstring; /* file system name */ uint8_t sb_blocklog; /* log2 of sb_blocksize */ uint8_t sb_sectlog; /* log2 of sb_sectsize */ uint8_t sb_inodelog; /* log2 of sb_inodesize */ diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index d250f7f74e3b..c3e8c5c1084f 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -990,9 +990,8 @@ xfs_ioc_getlabel( BUILD_BUG_ON(sizeof(sbp->sb_fname) > FSLABEL_MAX); =20 /* 1 larger than sb_fname, so this ensures a trailing NUL char */ - memset(label, 0, sizeof(label)); spin_lock(&mp->m_sb_lock); - strncpy(label, sbp->sb_fname, XFSLABEL_MAX); + memtostr_pad(label, sbp->sb_fname); spin_unlock(&mp->m_sb_lock); =20 if (copy_to_user(user_label, label, sizeof(label))) --=20 2.49.0