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Code Issues Releases Wiki Activity

cifs: move large array from stack to heap

Browse source 
This addresses some compile warnings that you can
see depending on configuration settings.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Aurelien Aptel 2019-01-08 13:41:00 +01:00 committed by Steve French
parent ee13919c2e
commit 15bc77f94e
2 changed files with 32 additions and 14 deletions
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23
fs/cifs/cifssmb.c
View file

@ -128,24 +128,31 @@ static int __cifs_reconnect_tcon(const struct nls_table *nlsc,
int rc;
struct dfs_cache_tgt_list tl;
struct dfs_cache_tgt_iterator *it = NULL;
char tree[MAX_TREE_SIZE + 1];
char *tree;
const char *tcp_host;
size_t tcp_host_len;
const char *dfs_host;
size_t dfs_host_len;
tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
if (!tree)
return -ENOMEM;
if (tcon->ipc) {
snprintf(tree, sizeof(tree), "\\\\%s\\IPC$",
snprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$",
tcon->ses->server->hostname);
return CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
rc = CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
goto out;
}
if (!tcon->dfs_path)
return CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
if (!tcon->dfs_path) {
rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
goto out;
}
rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
if (rc)
return rc;
goto out;
extract_unc_hostname(tcon->ses->server->hostname, &tcp_host,
&tcp_host_len);
@ -165,7 +172,7 @@ static int __cifs_reconnect_tcon(const struct nls_table *nlsc,
continue;
}
snprintf(tree, sizeof(tree), "\\%s", tgt);
snprintf(tree, MAX_TREE_SIZE, "\\%s", tgt);
rc = CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
if (!rc)
@ -182,6 +189,8 @@ static int __cifs_reconnect_tcon(const struct nls_table *nlsc,
rc = -ENOENT;
}
dfs_cache_free_tgts(&tl);
out:
kfree(tree);
return rc;
}
#else

23
fs/cifs/smb2pdu.c
View file

@ -162,24 +162,31 @@ static int __smb2_reconnect(const struct nls_table *nlsc,
int rc;
struct dfs_cache_tgt_list tl;
struct dfs_cache_tgt_iterator *it = NULL;
char tree[MAX_TREE_SIZE + 1];
char *tree;
const char *tcp_host;
size_t tcp_host_len;
const char *dfs_host;
size_t dfs_host_len;
tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
if (!tree)
return -ENOMEM;
if (tcon->ipc) {
snprintf(tree, sizeof(tree), "\\\\%s\\IPC$",
snprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$",
tcon->ses->server->hostname);
return SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
goto out;
}
if (!tcon->dfs_path)
return SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nlsc);
if (!tcon->dfs_path) {
rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nlsc);
goto out;
}
rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
if (rc)
return rc;
goto out;
extract_unc_hostname(tcon->ses->server->hostname, &tcp_host,
&tcp_host_len);
@ -199,7 +206,7 @@ static int __smb2_reconnect(const struct nls_table *nlsc,
continue;
}
snprintf(tree, sizeof(tree), "\\%s", tgt);
snprintf(tree, MAX_TREE_SIZE, "\\%s", tgt);
rc = SMB2_tcon(0, tcon->ses, tree, tcon, nlsc);
if (!rc)
@ -216,6 +223,8 @@ static int __smb2_reconnect(const struct nls_table *nlsc,
rc = -ENOENT;
}
dfs_cache_free_tgts(&tl);
out:
kfree(tree);
return rc;
}
#else