fs/affs: define AFFSNAMEMAX to replace constant use

30 was used all over the place to compare name length against
AFFS maximum name length.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

5 files changed, 16 insertions, 13 deletions

diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index ff44ff3ff015..c8764bd7497d 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -30,6 +30,8 @@
 #define AFFS_AC_SIZE            (AFFS_CACHE_SIZE/sizeof(struct affs_ext_key)/2)
 #define AFFS_AC_MASK            (AFFS_AC_SIZE-1)
 
+#define AFFSNAMEMAX 30U
+
 struct affs_ext_key {
         u32     ext;                            /* idx of the extended block */
         u32     key;                            /* block number */
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 0836f6fff641..118d782b041f 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -483,11 +483,11 @@ affs_check_name(const unsigned char *name, int len, bool notruncate)
 {
         int      i;
 
-        if (len > 30) {
+        if (len > AFFSNAMEMAX) {
                 if (notruncate)
                         return -ENAMETOOLONG;
                 else
-                        len = 30;
+                        len = AFFSNAMEMAX;
         }
         for (i = 0; i < len; i++) {
                 if (name[i] < ' ' || name[i] == ':'
@@ -508,7 +508,7 @@ affs_check_name(const unsigned char *name, int len, bool notruncate)
 int
 affs_copy_name(unsigned char *bstr, struct dentry *dentry)
 {
-        u32 len = min(dentry->d_name.len, 30u);
+        u32 len = min(dentry->d_name.len, AFFSNAMEMAX);
 
         *bstr++ = len;
         memcpy(bstr, dentry->d_name.name, len);
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index a682892878a8..ac4f318aafba 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -114,7 +114,8 @@ inside:
                                 break;
                         }
 
-                        namelen = min(AFFS_TAIL(sb, fh_bh)->name[0], (u8)30);
+                        namelen = min(AFFS_TAIL(sb, fh_bh)->name[0],
+                                      (u8)AFFSNAMEMAX);
                         name = AFFS_TAIL(sb, fh_bh)->name + 1;
                         pr_debug("readdir(): dir_emit(\"%.*s\", ino=%u), hash=%d, f_pos=%llx\n",
                                  namelen, name, ino, hash_pos, ctx->pos);
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index 66c6cb349bf6..ffb7bd82c2a5 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -72,7 +72,7 @@ __affs_hash_dentry(struct qstr *qstr, toupper_t toupper, bool notruncate)
                 return retval;
 
         hash = init_name_hash();
-        len = min(qstr->len, 30u);
+        len = min(qstr->len, AFFSNAMEMAX);
         for (; len > 0; name++, len--)
                 hash = partial_name_hash(toupper(*name), hash);
         qstr->hash = end_name_hash(hash);
@@ -115,10 +115,10 @@ static inline int __affs_compare_dentry(unsigned int len,
          * If the names are longer than the allowed 30 chars,
          * the excess is ignored, so their length may differ.
          */
-        if (len >= 30) {
-                if (name->len < 30)
+        if (len >= AFFSNAMEMAX) {
+                if (name->len < AFFSNAMEMAX)
                         return 1;
-                len = 30;
+                len = AFFSNAMEMAX;
         } else if (len != name->len)
                 return 1;
 
@@ -157,10 +157,10 @@ affs_match(struct dentry *dentry, const u8 *name2, toupper_t toupper)
         const u8 *name = dentry->d_name.name;
         int len = dentry->d_name.len;
 
-        if (len >= 30) {
-                if (*name2 < 30)
+        if (len >= AFFSNAMEMAX) {
+                if (*name2 < AFFSNAMEMAX)
                         return 0;
-                len = 30;
+                len = AFFSNAMEMAX;
         } else if (len != *name2)
                 return 0;
 
@@ -176,7 +176,7 @@ affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len)
         toupper_t toupper = affs_get_toupper(sb);
         u32 hash;
 
-        hash = len = min(len, 30u);
+        hash = len = min(len, AFFSNAMEMAX);
         for (; len > 0; len--)
                 hash = (hash * 13 + toupper(*name++)) & 0x7ff;
 
diff --git a/fs/affs/super.c b/fs/affs/super.c
index ee8eca7add0e..c3524bfdfe04 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -584,7 +584,7 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
         buf->f_bavail  = free;
         buf->f_fsid.val[0] = (u32)id;
         buf->f_fsid.val[1] = (u32)(id >> 32);
-        buf->f_namelen = 30;
+        buf->f_namelen = AFFSNAMEMAX;
         return 0;
 }