From nobody Mon Feb 9 12:29:05 2026 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (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 827F51E492D for ; Mon, 22 Dec 2025 07:24:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766388299; cv=none; b=cqVZVWdhmhg+uP4m8Xlcw5gZ99OhaaQu9kRpjXUtDlkAHsUj4IBo9hmkpj2sOQqvO5Q1YmsrCJZ4CE1GP82t1cpPvbzbJ8i0wpeccfJtksMAALDYJvxlzC92J7zE/OfGbsvPRAAQH8ee/oYkgj2d4butoJiB6NoreBSrhJUUFdo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766388299; c=relaxed/simple; bh=OEeIHYMIfv95/LV8cbf0ih6aGW9eAjamcGcITphtY58=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=WLnBRE2QateQVYDwsXtb6QvPTbgUWugCOXQUxW7RlAeDHgOZ3MZWfH1UO3JcKX94Rf8wRBP9ObtKGNIHFVxeccZLucluq0iVUn0fDF5EZMteodOVe5KzQm5sCEA00ZD1ZDYWWOiLI/+B0LcZREmPOFBm42wDndtFwOwK5imHjrY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.198]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4dZV5K3r9NzKHMQH for ; Mon, 22 Dec 2025 15:24:37 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.252]) by mail.maildlp.com (Postfix) with ESMTP id EB14840573 for ; Mon, 22 Dec 2025 15:24:53 +0800 (CST) Received: from huaweicloud.com (unknown [7.192.34.199]) by APP3 (Coremail) with SMTP id _Ch0CgB3xBJF8khpgVQpBA--.51780S2; Mon, 22 Dec 2025 15:24:53 +0800 (CST) From: Xiu Jianfeng To: muchun.song@linux.dev, osalvador@suse.de, david@kernel.org, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH -next] mm/hugetlb_cgroup: fix -Wformat-truncation warning Date: Mon, 22 Dec 2025 07:23:59 +0000 Message-ID: <20251222072359.3626182-1-xiujianfeng@huaweicloud.com> X-Mailer: git-send-email 2.43.0 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 X-CM-TRANSID: _Ch0CgB3xBJF8khpgVQpBA--.51780S2 X-Coremail-Antispam: 1UD129KBjvdXoW7JFW5uFyxJF4rGw17tw1DWrg_yoWkuFbE9F 1Uta40vr4rX3W2ywn0yrn8tayqkw1rJr95C3yfC3srJF9xKa409wn7Wr1a9F4fGF4jgFy7 u3ya9w48trnFqjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbcAYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r1Y6r17McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lc7CjxVAaw2AFwI0_JF0_Jw1lc2xSY4AK6IIF 6r4xMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI 0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y 0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxV WUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1l IxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIevJa73UjIFyTuYvjxUctC7UUUUU X-CM-SenderInfo: x0lxyxpdqiv03j6k3tpzhluzxrxghudrp/ Content-Type: text/plain; charset="utf-8" From: Xiu Jianfeng A false-positive compile warnings with -Wformat-trucation was introduced by commit 47179fe03588 ("mm/hugetlb_cgroup: prepare cftypes based on template") on arch s390. Suppress it by replacing snprintf() with scnprintf(). Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202512212332.9lFRbgdS-lkp@int= el.com/ Signed-off-by: Xiu Jianfeng --- mm/hugetlb_cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 58e895f3899a..7144d7d555eb 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -822,7 +822,7 @@ hugetlb_cgroup_cfttypes_init(struct hstate *h, struct c= ftype *cft, for (i =3D 0; i < tmpl_size; cft++, tmpl++, i++) { *cft =3D *tmpl; /* rebuild the name */ - snprintf(cft->name, MAX_CFTYPE_NAME, "%s.%s", buf, tmpl->name); + scnprintf(cft->name, MAX_CFTYPE_NAME, "%s.%s", buf, tmpl->name); /* rebuild the private */ cft->private =3D MEMFILE_PRIVATE(idx, tmpl->private); /* rebuild the file_offset */ --=20 2.43.0