[cifs:for-next 24/27] fs//cifs/cifssmb.c:186:1: warning: the frame size of 1328 bytes is larger than 1024 bytes

[kbuild test robot]

tree:   git://git.samba.org/sfrench/cifs-2.6.git for-next
head:   45f4017ee6cabfe12161c1289fe06f9d9b16805a
commit: c26d36668ef2776561728e22699afedec5c68e7a [24/27] cifs: Add support for failover in cifs_reconnect_tcon()
config: i386-randconfig-x015-201849 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout c26d36668ef2776561728e22699afedec5c68e7a
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   fs//cifs/cifssmb.c: In function '__cifs_reconnect_tcon':
>> fs//cifs/cifssmb.c:186:1: warning: the frame size of 1328 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^

vim +186 fs//cifs/cifssmb.c

   123	
   124	#ifdef CONFIG_CIFS_DFS_UPCALL
   125	static int __cifs_reconnect_tcon(const struct nls_table *nlsc,
   126					 struct cifs_tcon *tcon)
   127	{
   128		int rc;
   129		struct dfs_cache_tgt_list tl;
   130		struct dfs_cache_tgt_iterator *it = NULL;
   131		char tree[MAX_TREE_SIZE + 1];
   132		const char *tcp_host;
   133		size_t tcp_host_len;
   134		const char *dfs_host;
   135		size_t dfs_host_len;
   136	
   137		if (tcon->ipc) {
   138			snprintf(tree, sizeof(tree), "\\\\%s\\IPC$",
   139				 tcon->ses->server->hostname);
   140			return CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
   141		}
   142	
   143		if (!tcon->dfs_path)
   144			return CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
   145	
   146		rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
   147		if (rc)
   148			return rc;
   149	
   150		extract_unc_hostname(tcon->ses->server->hostname, &tcp_host,
   151				     &tcp_host_len);
   152	
   153		for (it = dfs_cache_get_tgt_iterator(&tl); it;
   154		     it = dfs_cache_get_next_tgt(&tl, it)) {
   155			const char *tgt = dfs_cache_get_tgt_name(it);
   156	
   157			extract_unc_hostname(tgt, &dfs_host, &dfs_host_len);
   158	
   159			if (dfs_host_len != tcp_host_len
   160			    || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
   161				cifs_dbg(FYI, "%s: skipping %.*s, doesn't match %.*s",
   162					 __func__,
   163					 (int)dfs_host_len, dfs_host,
   164					 (int)tcp_host_len, tcp_host);
   165				continue;
   166			}
   167	
   168			snprintf(tree, sizeof(tree), "\\%s", tgt);
   169	
   170			rc = CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
   171			if (!rc)
   172				break;
   173			if (rc == -EREMOTE)
   174				break;
   175		}
   176	
   177		if (!rc) {
   178			if (it)
   179				rc = dfs_cache_noreq_update_tgthint(tcon->dfs_path + 1,
   180								    it);
   181			else
   182				rc = -ENOENT;
   183		}
   184		dfs_cache_free_tgts(&tl);
   185		return rc;
 > 186	}
   187	#else
   188	static inline int __cifs_reconnect_tcon(const struct nls_table *nlsc,
   189						struct cifs_tcon *tcon)
   190	{
   191		return CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
   192	}
   193	#endif
   194	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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