[PATCH v2 5/5] exfat: replace magic numbers with Macros
From: Yuezhang.Mo@xxxxxxxx
Date: Thu Nov 24 2022 - 01:41:12 EST
Code refinement, no functional changes.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@xxxxxxxx>
Reviewed-by: Andy Wu <Andy.Wu@xxxxxxxx>
Reviewed-by: Aoyama Wataru <wataru.aoyama@xxxxxxxx>
---
fs/exfat/dir.c | 12 ++++++------
fs/exfat/inode.c | 4 ++--
fs/exfat/namei.c | 4 ++--
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c
index a9a0b3e46af2..c05493fc9124 100644
--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -44,7 +44,7 @@ static void exfat_get_uniname_from_ext_entry(struct super_block *sb,
* Third entry : first file-name entry
* So, the index of first file-name dentry should start from 2.
*/
- for (i = 2; i < es.num_entries; i++) {
+ for (i = ES_IDX_FIRST_FILENAME; i < es.num_entries; i++) {
struct exfat_dentry *ep = exfat_get_dentry_cached(&es, i);
/* end of name entry */
@@ -336,7 +336,7 @@ int exfat_calc_num_entries(struct exfat_uni_name *p_uniname)
return -EINVAL;
/* 1 file entry + 1 stream entry + name entries */
- return ((len - 1) / EXFAT_FILE_NAME_LEN + 3);
+ return ES_ENTRY_NUM(len);
}
unsigned int exfat_get_entry_type(struct exfat_dentry *ep)
@@ -591,13 +591,13 @@ void exfat_update_dir_chksum_with_entry_set(struct exfat_entry_set_cache *es)
unsigned short chksum = 0;
struct exfat_dentry *ep;
- for (i = 0; i < es->num_entries; i++) {
+ for (i = ES_IDX_FILE; i < es->num_entries; i++) {
ep = exfat_get_dentry_cached(es, i);
chksum = exfat_calc_chksum16(ep, DENTRY_SIZE, chksum,
chksum_type);
chksum_type = CS_DEFAULT;
}
- ep = exfat_get_dentry_cached(es, 0);
+ ep = exfat_get_dentry_cached(es, ES_IDX_FILE);
ep->dentry.file.checksum = cpu_to_le16(chksum);
es->modified = true;
}
@@ -858,7 +858,7 @@ int exfat_get_dentry_set(struct exfat_entry_set_cache *es,
return -EIO;
es->bh[es->num_bh++] = bh;
- ep = exfat_get_dentry_cached(es, 0);
+ ep = exfat_get_dentry_cached(es, ES_IDX_FILE);
if (!exfat_validate_entry(exfat_get_entry_type(ep), &mode))
goto put_es;
@@ -895,7 +895,7 @@ int exfat_get_dentry_set(struct exfat_entry_set_cache *es,
}
/* validate cached dentries */
- for (i = 1; i < num_entries; i++) {
+ for (i = ES_IDX_STREAM; i < num_entries; i++) {
ep = exfat_get_dentry_cached(es, i);
if (!exfat_validate_entry(exfat_get_entry_type(ep), &mode))
goto put_es;
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index a84eae72556d..dac5001bae9e 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -44,8 +44,8 @@ int __exfat_write_inode(struct inode *inode, int sync)
/* get the directory entry of given file or directory */
if (exfat_get_dentry_set(&es, sb, &(ei->dir), ei->entry, ES_ALL_ENTRIES))
return -EIO;
- ep = exfat_get_dentry_cached(&es, 0);
- ep2 = exfat_get_dentry_cached(&es, 1);
+ ep = exfat_get_dentry_cached(&es, ES_IDX_FILE);
+ ep2 = exfat_get_dentry_cached(&es, ES_IDX_STREAM);
ep->dentry.file.attr = cpu_to_le16(exfat_make_attr(inode));
diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index 57510d7f58cf..01e4e8c60bbe 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -646,8 +646,8 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
dentry = hint_opt.eidx;
if (exfat_get_dentry_set(&es, sb, &cdir, dentry, ES_2_ENTRIES))
return -EIO;
- ep = exfat_get_dentry_cached(&es, 0);
- ep2 = exfat_get_dentry_cached(&es, 1);
+ ep = exfat_get_dentry_cached(&es, ES_IDX_FILE);
+ ep2 = exfat_get_dentry_cached(&es, ES_IDX_STREAM);
info->type = exfat_get_entry_type(ep);
info->attr = le16_to_cpu(ep->dentry.file.attr);
--
2.25.1