tree: git://git.samba.org/sfrench/cifs-2.6.git for-next
head: 45f4017ee6cabfe12161c1289fe06f9d9b16805a
commit: 4d38952f6fe99138c0250136a1b59a6722819079 [23/27] cifs: Add support for failover in smb2_reconnect()
config: i386-randconfig-x015-201849 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 4d38952f6fe99138c0250136a1b59a6722819079
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
fs//cifs/smb2pdu.c: In function '__smb2_reconnect':
>> fs//cifs/smb2pdu.c:220:1: warning: the frame size of 1328 bytes is larger than 1024 bytes [-Wframe-larger-than=]
}
^
vim +220 fs//cifs/smb2pdu.c
157
158 #ifdef CONFIG_CIFS_DFS_UPCALL
159 static int __smb2_reconnect(const struct nls_table *nlsc,
160 struct cifs_tcon *tcon)
161 {
162 int rc;
163 struct dfs_cache_tgt_list tl;
164 struct dfs_cache_tgt_iterator *it = NULL;
165 char tree[MAX_TREE_SIZE + 1];
166 const char *tcp_host;
167 size_t tcp_host_len;
168 const char *dfs_host;
169 size_t dfs_host_len;
170
171 if (tcon->ipc) {
172 snprintf(tree, sizeof(tree), "\\\\%s\\IPC$",
173 tcon->ses->server->hostname);
174 return SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
175 }
176
177 if (!tcon->dfs_path)
178 return SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nlsc);
179
180 rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
181 if (rc)
182 return rc;
183
184 extract_unc_hostname(tcon->ses->server->hostname, &tcp_host,
185 &tcp_host_len);
186
187 for (it = dfs_cache_get_tgt_iterator(&tl); it;
188 it = dfs_cache_get_next_tgt(&tl, it)) {
189 const char *tgt = dfs_cache_get_tgt_name(it);
190
191 extract_unc_hostname(tgt, &dfs_host, &dfs_host_len);
192
193 if (dfs_host_len != tcp_host_len
194 || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
195 cifs_dbg(FYI, "%s: skipping %.*s, doesn't match %.*s",
196 __func__,
197 (int)dfs_host_len, dfs_host,
198 (int)tcp_host_len, tcp_host);
199 continue;
200 }
201
202 snprintf(tree, sizeof(tree), "\\%s", tgt);
203
204 rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
205 if (!rc)
206 break;
207 if (rc == -EREMOTE)
208 break;
209 }
210
211 if (!rc) {
212 if (it)
213 rc = dfs_cache_noreq_update_tgthint(tcon->dfs_path + 1,
214 it);
215 else
216 rc = -ENOENT;
217 }
218 dfs_cache_free_tgts(&tl);
219 return rc;
> 220 }
221 #else
222 static inline int __smb2_reconnect(const struct nls_table *nlsc,
223 struct cifs_tcon *tcon)
224 {
225 return SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nlsc);
226 }
227 #endif
228
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
