From patchwork Sun Oct 8 06:01:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Su Hui X-Patchwork-Id: 13412573 Received: from mail.nfschina.com (unknown [42.101.60.195]) by smtp.subspace.kernel.org (Postfix) with SMTP id E88213D82 for ; Sun, 8 Oct 2023 06:04:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nfschina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nfschina.com Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from localhost.localdomain (unknown [180.167.10.98]) by mail.nfschina.com (Maildata Gateway V2.8.8) with ESMTPA id 11702604A87F2; Sun, 8 Oct 2023 14:01:48 +0800 (CST) X-MD-Sfrom: suhui@nfschina.com X-MD-SrcIP: 180.167.10.98 From: Su Hui To: ericvh@kernel.org, lucho@ionkov.net, asmadeus@codewreck.org, linux_oss@crudebyte.com Cc: Su Hui , v9fs@lists.linux.dev, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH] fs/9p/xattr.c: avoid format-overflow warning Date: Sun, 8 Oct 2023 14:01:39 +0800 Message-Id: <20231008060138.517057-1-suhui@nfschina.com> X-Mailer: git-send-email 2.30.2 Precedence: bulk X-Mailing-List: v9fs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 with gcc and W=1 option, there's a warning like this: In file included from fs/9p/xattr.c:12: In function ‘v9fs_xattr_get’, inlined from ‘v9fs_listxattr’ at fs/9p/xattr.c:142:9: include/net/9p/9p.h:55:2: error: ‘%s’ directive argument is null [-Werror=format-overflow=] 55 | _p9_debug(level, __func__, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ use "" replace NULL to silence this warning. Signed-off-by: Su Hui --- fs/9p/xattr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c index e00cf8109b3f..d995ee080835 100644 --- a/fs/9p/xattr.c +++ b/fs/9p/xattr.c @@ -139,7 +139,7 @@ int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name, ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) { - return v9fs_xattr_get(dentry, NULL, buffer, buffer_size); + return v9fs_xattr_get(dentry, "", buffer, buffer_size); } static int v9fs_xattr_handler_get(const struct xattr_handler *handler,