[CIFS] clean up some hard to read ifdefs

Christoph had noticed too many ifdefs in the CIFS code making it
hard to read.  This patch removes about a quarter of them from
the C files in cifs by improving a few key ifdefs in the .h files.

Signed-off-by: Steve French <sfrench@us.ibm.com>

13 files changed, 51 insertions, 84 deletions

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 4bd863716f79..892fc70cc951 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -438,7 +438,7 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
 
         return length;
 }
-#endif
+#endif /* STATS */
 
 static struct proc_dir_entry *proc_fs_cifs;
 read_proc_t cifs_txanchor_read;
@@ -481,7 +481,7 @@ cifs_proc_init(void)
                                 cifs_stats_read, NULL);
         if (pde)
                 pde->write_proc = cifs_stats_write;
-#endif
+#endif /* STATS */
         pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
                                 cifsFYI_read, NULL);
         if (pde)
@@ -917,4 +917,12 @@ security_flags_write(struct file *file, const char __user *buffer,
         /* BB should we turn on MAY flags for other MUST options? */
         return count;
 }
-#endif
+#else
+static inline void cifs_proc_init(void)
+{
+}
+
+static inline void cifs_proc_clean(void)
+{
+}
+#endif /* PROC_FS */
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index 90e7624a2543..5eb3b83bbfa7 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -25,8 +25,11 @@
 
 void cifs_dump_mem(char *label, void *data, int length);
 #ifdef CONFIG_CIFS_DEBUG2
+#define DBG2 2
 void cifs_dump_detail(struct smb_hdr *);
 void cifs_dump_mids(struct TCP_Server_Info *);
+#else
+#define DBG2 0
 #endif
 extern int traceSMB;            /* flag which enables the function below */
 void dump_smb(struct smb_hdr *, int);
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 842aaa92168d..49485108454f 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -215,9 +215,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
 
         if (flags & GENERIC_ALL) {
                 *pmode |= (S_IRWXUGO & (*pbits_to_set));
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("all perms"));
-#endif
+                cFYI(DBG2, ("all perms"));
                 return;
         }
         if ((flags & GENERIC_WRITE) ||
@@ -230,9 +228,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
                         ((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
                 *pmode |= (S_IXUGO & (*pbits_to_set));
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("access flags 0x%x mode now 0x%x", flags, *pmode));
-#endif
+        cFYI(DBG2, ("access flags 0x%x mode now 0x%x", flags, *pmode));
         return;
 }
 
@@ -261,9 +257,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use,
         if (mode & S_IXUGO)
                 *pace_flags |= SET_FILE_EXEC_RIGHTS;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags));
-#endif
+        cFYI(DBG2, ("mode: 0x%x, access flags now 0x%x", mode, *pace_flags));
         return;
 }
 
@@ -357,11 +351,9 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
                 return;
         }
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("DACL revision %d size %d num aces %d",
+        cFYI(DBG2, ("DACL revision %d size %d num aces %d",
                 le16_to_cpu(pdacl->revision), le16_to_cpu(pdacl->size),
                 le32_to_cpu(pdacl->num_aces)));
-#endif
 
         /* reset rwx permissions for user/group/other.
            Also, if num_aces is 0 i.e. DACL has no ACEs,
@@ -494,13 +486,11 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
                                 le32_to_cpu(pntsd->gsidoffset));
         dacloffset = le32_to_cpu(pntsd->dacloffset);
         dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
+        cFYI(DBG2, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
                  "sacloffset 0x%x dacloffset 0x%x",
                  pntsd->revision, pntsd->type, le32_to_cpu(pntsd->osidoffset),
                  le32_to_cpu(pntsd->gsidoffset),
                  le32_to_cpu(pntsd->sacloffset), dacloffset));
-#endif
 /*      cifs_dump_mem("owner_sid: ", owner_sid_ptr, 64); */
         rc = parse_sid(owner_sid_ptr, end_of_acl);
         if (rc)
@@ -635,9 +625,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
         struct super_block *sb;
         struct cifs_sb_info *cifs_sb;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("set ACL for %s from mode 0x%x", path, inode->i_mode));
-#endif
+        cFYI(DBG2, ("set ACL for %s from mode 0x%x", path, inode->i_mode));
 
         if (!inode)
                 return (rc);
@@ -668,9 +656,7 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
         }
 
         rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("SetCIFSACL rc = %d", rc));
-#endif
+        cFYI(DBG2, ("SetCIFSACL rc = %d", rc));
         if (unlock_file == TRUE)
                 atomic_dec(&open_file->wrtPending);
         else
@@ -688,9 +674,7 @@ void acl_to_uid_mode(struct inode *inode, const char *path)
         u32 acllen = 0;
         int rc = 0;
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("converting ACL to mode for %s", path));
-#endif
+        cFYI(DBG2, ("converting ACL to mode for %s", path));
         pntsd = get_cifs_acl(&acllen, inode, path);
 
         /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
@@ -711,9 +695,7 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
         struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */
         struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("set ACL from mode for %s", path));
-#endif
+        cFYI(DBG2, ("set ACL from mode for %s", path));
 
         /* Get the security descriptor */
         pntsd = get_cifs_acl(&acllen, inode, path);
@@ -735,16 +717,12 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
 
                 rc = build_sec_desc(pntsd, pnntsd, acllen, inode, nmode);
 
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("build_sec_desc rc: %d", rc));
-#endif
+                cFYI(DBG2, ("build_sec_desc rc: %d", rc));
 
                 if (!rc) {
                         /* Set the security descriptor */
                         rc = set_cifs_acl(pnntsd, acllen, inode, path);
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("set_cifs_acl rc: %d", rc));
-#endif
+                        cFYI(DBG2, ("set_cifs_acl rc: %d", rc));
                 }
 
                 kfree(pnntsd);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index bca6a69aaf20..ff57ad4efe82 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -470,9 +470,7 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags)
         struct cifs_sb_info *cifs_sb;
         struct cifsTconInfo *tcon;
 
-#ifdef CONFIG_CIFS_DFS_UPCALL
         dfs_shrink_umount_helper(vfsmnt);
-#endif /* CONFIG CIFS_DFS_UPCALL */
 
         if (!(flags & MNT_FORCE))
                 return;
@@ -991,9 +989,7 @@ static int __init
 init_cifs(void)
 {
         int rc = 0;
-#ifdef CONFIG_PROC_FS
         cifs_proc_init();
-#endif
 /*      INIT_LIST_HEAD(&GlobalServerList);*/    /* BB not implemented yet */
         INIT_LIST_HEAD(&GlobalSMBSessionList);
         INIT_LIST_HEAD(&GlobalTreeConnectionList);
@@ -1094,19 +1090,15 @@ init_cifs(void)
  out_destroy_inodecache:
         cifs_destroy_inodecache();
  out_clean_proc:
-#ifdef CONFIG_PROC_FS
         cifs_proc_clean();
-#endif
         return rc;
 }
 
 static void __exit
 exit_cifs(void)
 {
-        cFYI(0, ("exit_cifs"));
-#ifdef CONFIG_PROC_FS
+        cFYI(DBG2, ("exit_cifs"));
         cifs_proc_clean();
-#endif
 #ifdef CONFIG_CIFS_DFS_UPCALL
         unregister_key_type(&key_type_dns_resolver);
 #endif
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 6355ff841f32..50f3eede93b9 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -102,9 +102,13 @@ extern int mode_to_acl(struct inode *inode, const char *path, __u64);
 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
                         const char *);
 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
-#ifdef CONFIG_CIFS_DFS_UPCALL
+#ifdef CONFIG_CIFS_DFS
 extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt);
-#endif
+#else
+static inline void dfs_shrink_umount_helper(struct vfsmount *vfsmnt)
+{
+}
+#endif /* DFS_UPCALL */
 void cifs_proc_init(void);
 void cifs_proc_clean(void);
 
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 4b69d1cea65e..30bbe448e260 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -602,7 +602,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
         server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize),
                         (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
         server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
-        cFYI(0, ("Max buf = %d", ses->server->maxBuf));
+        cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf));
         GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
         server->capabilities = le32_to_cpu(pSMBr->Capabilities);
         server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
@@ -1108,9 +1108,7 @@ PsxCreat:
         /* check to make sure response data is there */
         if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) {
                 pRetData->Type = cpu_to_le32(-1); /* unknown */
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("unknown type"));
-#endif
+                cFYI(DBG2, ("unknown type"));
         } else {
                 if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
                                         + sizeof(FILE_UNIX_BASIC_INFO)) {
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 65d0ba72e78f..5ccd8b710cc5 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1753,9 +1753,8 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
                 if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) {
                         if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) {
                                 CIFS_SB(sb)->rsize = 127 * 1024;
-#ifdef CONFIG_CIFS_DEBUG2
-                                cFYI(1, ("larger reads not supported by srv"));
-#endif
+                                cFYI(DBG2,
+                                        ("larger reads not supported by srv"));
                         }
                 }
 
@@ -2227,9 +2226,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 
                 if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) {
                         cifs_sb->rsize = 1024 * 127;
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("no very large read support, rsize now 127K"));
-#endif
+                        cFYI(DBG2,
+                                ("no very large read support, rsize now 127K"));
                 }
                 if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X))
                         cifs_sb->wsize = min(cifs_sb->wsize,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 983557d12b0e..fa849c91d323 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -499,9 +499,8 @@ int cifs_close(struct inode *inode, struct file *file)
                                         the struct would be in each open file,
                                         but this should give enough time to
                                         clear the socket */
-#ifdef CONFIG_CIFS_DEBUG2
-                                        cFYI(1, ("close delay, write pending"));
-#endif /* DEBUG2 */
+                                        cFYI(DBG2,
+                                                ("close delay, write pending"));
                                         msleep(timeout);
                                         timeout *= 4;
                                 }
@@ -1812,9 +1811,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
         pTcon = cifs_sb->tcon;
 
         pagevec_init(&lru_pvec, 0);
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("rpages: num pages %d", num_pages));
-#endif
+                cFYI(DBG2, ("rpages: num pages %d", num_pages));
         for (i = 0; i < num_pages; ) {
                 unsigned contig_pages;
                 struct page *tmp_page;
@@ -1847,10 +1844,8 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
                 /* Read size needs to be in multiples of one page */
                 read_size = min_t(const unsigned int, read_size,
                                   cifs_sb->rsize & PAGE_CACHE_MASK);
-#ifdef CONFIG_CIFS_DEBUG2
-                cFYI(1, ("rpages: read size 0x%x  contiguous pages %d",
+                cFYI(DBG2, ("rpages: read size 0x%x  contiguous pages %d",
                                 read_size, contig_pages));
-#endif
                 rc = -EAGAIN;
                 while (rc == -EAGAIN) {
                         if ((open_file->invalidHandle) &&
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ec26c6aa6421..6020add15156 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -837,9 +837,7 @@ static void posix_fill_in_inode(struct inode *tmp_inode,
                 cFYI(1, ("unknown inode type %d", type));
         }
 
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("object type: %d", type));
-#endif
+        cFYI(DBG2, ("object type: %d", type));
         tmp_inode->i_uid = le64_to_cpu(pData->Uid);
         tmp_inode->i_gid = le64_to_cpu(pData->Gid);
         tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks);
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 7c51e2e9a9f7..3b5a5ce882b6 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -150,9 +150,7 @@ static int canonicalize_unc(char *cp)
                 if (cp[i] == '\\')
                         break;
                 if (cp[i] == '/') {
-#ifdef CONFIG_CIFS_DEBUG2
-                        cFYI(1, ("change slash to backslash in malformed UNC"));
-#endif
+                        cFYI(DBG2, ("change slash to \\ in malformed UNC"));
                         cp[i] = '\\';
                         return 1;
                 }
@@ -178,9 +176,7 @@ cifs_inet_pton(int address_family, char *cp, void *dst)
         } else if (address_family == AF_INET6) {
                 ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
         }
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("address conversion returned %d for %s", ret, cp));
-#endif
+        cFYI(DBG2, ("address conversion returned %d for %s", ret, cp));
         if (ret > 0)
                 ret = 1;
         return ret;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 89aae6cb32f8..32b445edc882 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -50,6 +50,10 @@ static void dump_cifs_file_struct(struct file *file, char *label)
                         cFYI(1, ("empty dir"));
         }
 }
+#else
+static inline void dump_cifs_file_struct(struct file *file, char *label)
+{
+}
 #endif /* DEBUG2 */
 
 /* Returns one if new inode created (which therefore needs to be hashed) */
@@ -660,9 +664,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
         . and .. for the root of a drive and for those we need
         to start two entries earlier */
 
-#ifdef CONFIG_CIFS_DEBUG2
         dump_cifs_file_struct(file, "In fce ");
-#endif
         if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
              is_dir_changed(file)) ||
            (index_to_find < first_entry_in_buffer)) {
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index d2153abcba6d..ed150efbe27c 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -417,10 +417,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 
                 calc_lanman_hash(ses, lnm_session_key);
                 ses->flags |= CIFS_SES_LANMAN;
-/* #ifdef CONFIG_CIFS_DEBUG2
-                cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
-                        CIFS_SESS_KEY_SIZE);
-#endif */
                 memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE);
                 bcc_ptr += CIFS_SESS_KEY_SIZE;
 
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 48cdab0e70ed..3612d6c0a0bb 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -437,9 +437,8 @@ SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
         iov[0].iov_len = in_buf->smb_buf_length + 4;
         flags |= CIFS_NO_RESP;
         rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags);
-#ifdef CONFIG_CIFS_DEBUG2
-        cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc));
-#endif
+        cFYI(DBG2, ("SendRcvNoRsp flags %d rc %d", flags, rc));
+
         return rc;
 }