[PATCH 5/6] staging: exfat: avoid multiple assignments

From: Roi Martin
Date: Tue Oct 29 2019 - 21:05:09 EST

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Fix checkpatch.pl warning:

CHECK: multiple assignments should be avoided

Signed-off-by: Roi Martin <jroi.martin@xxxxxxxxx>
---
drivers/staging/exfat/exfat_core.c | 3 +-
drivers/staging/exfat/exfat_super.c | 90 +++++++++++++++++++++++------
2 files changed, 73 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index 4d6ea5c809d3..f446e6e6c4ee 100644
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -470,7 +470,8 @@ s32 exfat_count_used_clusters(struct super_block *sb)
struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);

- map_i = map_b = 0;
+ map_i = 0;
+ map_b = 0;

for (i = 2; i < p_fs->num_clusters; i += 8) {
k = *(((u8 *)p_fs->vol_amap[map_i]->b_data) + map_b);
diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 401f057fe924..278270a3cad6 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -864,7 +864,8 @@ static int ffsWriteFile(struct inode *inode, struct file_id_t *fid,

while (count > 0) {
clu_offset = (s32)(fid->rwoffset >> p_fs->cluster_size_bits);
- clu = last_clu = fid->start_clu;
+ clu = fid->start_clu;
+ last_clu = fid->start_clu;

if (fid->flags == 0x03) {
if ((clu_offset > 0) && (clu != CLUSTER_32(~0))) {
@@ -2351,6 +2352,7 @@ static int exfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
bool excl)
{
struct super_block *sb = dir->i_sb;
+ struct timespec64 curtime;
struct inode *inode;
struct file_id_t fid;
loff_t i_pos;
@@ -2375,7 +2377,10 @@ static int exfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
goto out;
}
INC_IVERSION(dir);
- dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir);
+ curtime = current_time(dir);
+ dir->i_ctime = curtime;
+ dir->i_mtime = curtime;
+ dir->i_atime = curtime;
if (IS_DIRSYNC(dir))
(void)exfat_sync_inode(dir);
else
@@ -2389,7 +2394,10 @@ static int exfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
goto out;
}
INC_IVERSION(inode);
- inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
+ inode->i_ctime = curtime;
/*
* timestamp is already written, so mark_inode_dirty() is unnecessary.
*/
@@ -2522,6 +2530,7 @@ static int exfat_unlink(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
struct super_block *sb = dir->i_sb;
+ struct timespec64 curtime;
int err;

__lock_super(sb);
@@ -2539,14 +2548,18 @@ static int exfat_unlink(struct inode *dir, struct dentry *dentry)
goto out;
}
INC_IVERSION(dir);
- dir->i_mtime = dir->i_atime = current_time(dir);
+ curtime = current_time(dir);
+ dir->i_mtime = curtime;
+ dir->i_atime = curtime;
if (IS_DIRSYNC(dir))
(void)exfat_sync_inode(dir);
else
mark_inode_dirty(dir);

clear_nlink(inode);
- inode->i_mtime = inode->i_atime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
exfat_detach(inode);
remove_inode_hash(inode);

@@ -2560,6 +2573,7 @@ static int exfat_symlink(struct inode *dir, struct dentry *dentry,
const char *target)
{
struct super_block *sb = dir->i_sb;
+ struct timespec64 curtime;
struct inode *inode;
struct file_id_t fid;
loff_t i_pos;
@@ -2597,7 +2611,10 @@ static int exfat_symlink(struct inode *dir, struct dentry *dentry,
}

INC_IVERSION(dir);
- dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir);
+ curtime = current_time(dir);
+ dir->i_ctime = curtime;
+ dir->i_mtime = curtime;
+ dir->i_atime = curtime;
if (IS_DIRSYNC(dir))
(void)exfat_sync_inode(dir);
else
@@ -2611,7 +2628,10 @@ static int exfat_symlink(struct inode *dir, struct dentry *dentry,
goto out;
}
INC_IVERSION(inode);
- inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
+ inode->i_ctime = curtime;
/* timestamp is already written, so mark_inode_dirty() is unneeded. */

EXFAT_I(inode)->target = kmemdup(target, len + 1, GFP_KERNEL);
@@ -2632,6 +2652,7 @@ static int exfat_symlink(struct inode *dir, struct dentry *dentry,
static int exfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
struct super_block *sb = dir->i_sb;
+ struct timespec64 curtime;
struct inode *inode;
struct file_id_t fid;
loff_t i_pos;
@@ -2656,7 +2677,10 @@ static int exfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
goto out;
}
INC_IVERSION(dir);
- dir->i_ctime = dir->i_mtime = dir->i_atime = current_time(dir);
+ curtime = current_time(dir);
+ dir->i_ctime = curtime;
+ dir->i_mtime = curtime;
+ dir->i_atime = curtime;
if (IS_DIRSYNC(dir))
(void)exfat_sync_inode(dir);
else
@@ -2671,7 +2695,10 @@ static int exfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
goto out;
}
INC_IVERSION(inode);
- inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
+ inode->i_ctime = curtime;
/* timestamp is already written, so mark_inode_dirty() is unneeded. */

dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode);
@@ -2687,6 +2714,7 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
struct super_block *sb = dir->i_sb;
+ struct timespec64 curtime;
int err;

__lock_super(sb);
@@ -2710,7 +2738,9 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
goto out;
}
INC_IVERSION(dir);
- dir->i_mtime = dir->i_atime = current_time(dir);
+ curtime = current_time(dir);
+ dir->i_mtime = curtime;
+ dir->i_atime = curtime;
if (IS_DIRSYNC(dir))
(void)exfat_sync_inode(dir);
else
@@ -2718,7 +2748,9 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
drop_nlink(dir);

clear_nlink(inode);
- inode->i_mtime = inode->i_atime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
exfat_detach(inode);
remove_inode_hash(inode);

@@ -2734,6 +2766,7 @@ static int exfat_rename(struct inode *old_dir, struct dentry *old_dentry,
{
struct inode *old_inode, *new_inode;
struct super_block *sb = old_dir->i_sb;
+ struct timespec64 curtime;
loff_t i_pos;
int err;

@@ -2767,8 +2800,11 @@ static int exfat_rename(struct inode *old_dir, struct dentry *old_dentry,
goto out;
}
INC_IVERSION(new_dir);
- new_dir->i_ctime = new_dir->i_mtime = new_dir->i_atime =
- current_time(new_dir);
+ curtime = current_time(new_dir);
+ new_dir->i_ctime = curtime;
+ new_dir->i_mtime = curtime;
+ new_dir->i_atime = curtime;
+
if (IS_DIRSYNC(new_dir))
(void)exfat_sync_inode(new_dir);
else
@@ -2790,7 +2826,9 @@ static int exfat_rename(struct inode *old_dir, struct dentry *old_dentry,
inc_nlink(new_dir);
}
INC_IVERSION(old_dir);
- old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir);
+ curtime = current_time(old_dir);
+ old_dir->i_ctime = curtime;
+ old_dir->i_mtime = curtime;
if (IS_DIRSYNC(old_dir))
(void)exfat_sync_inode(old_dir);
else
@@ -2814,13 +2852,16 @@ static int exfat_cont_expand(struct inode *inode, loff_t size)
{
struct address_space *mapping = inode->i_mapping;
loff_t start = i_size_read(inode), count = size - i_size_read(inode);
+ struct timespec64 curtime;
int err, err2;

err = generic_cont_expand_simple(inode, size);
if (err != 0)
return err;

- inode->i_ctime = inode->i_mtime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_ctime = curtime;
+ inode->i_mtime = curtime;
mark_inode_dirty(inode);

if (IS_SYNC(inode)) {
@@ -2896,6 +2937,7 @@ static void exfat_truncate(struct inode *inode, loff_t old_size)
struct super_block *sb = inode->i_sb;
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct fs_info_t *p_fs = &sbi->fs_info;
+ struct timespec64 curtime;
int err;

__lock_super(sb);
@@ -2914,7 +2956,9 @@ static void exfat_truncate(struct inode *inode, loff_t old_size)
if (err)
goto out;

- inode->i_ctime = inode->i_mtime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_ctime = curtime;
+ inode->i_mtime = curtime;
if (IS_DIRSYNC(inode))
(void)exfat_sync_inode(inode);
else
@@ -3215,6 +3259,7 @@ static int exfat_write_end(struct file *file, struct address_space *mapping,
{
struct inode *inode = mapping->host;
struct file_id_t *fid = &(EXFAT_I(inode)->fid);
+ struct timespec64 curtime;
int err;

err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata);
@@ -3223,7 +3268,9 @@ static int exfat_write_end(struct file *file, struct address_space *mapping,
exfat_write_failed(mapping, pos + len);

if (!(err < 0) && !(fid->attr & ATTR_ARCHIVE)) {
- inode->i_mtime = inode->i_ctime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_ctime = curtime;
fid->attr |= ATTR_ARCHIVE;
mark_inode_dirty(inode);
}
@@ -3674,7 +3721,8 @@ static int parse_options(char *options, int silent, int *debug,

opts->fs_uid = current_uid();
opts->fs_gid = current_gid();
- opts->fs_fmask = opts->fs_dmask = current->fs->umask;
+ opts->fs_fmask = current->fs->umask;
+ opts->fs_dmask = current->fs->umask;
opts->allow_utime = U16_MAX;
opts->codepage = exfat_default_codepage;
opts->iocharset = exfat_default_iocharset;
@@ -3788,6 +3836,7 @@ static int exfat_read_root(struct inode *inode)
struct super_block *sb = inode->i_sb;
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct fs_info_t *p_fs = &sbi->fs_info;
+ struct timespec64 curtime;
struct dir_entry_t info;

EXFAT_I(inode)->fid.dir.dir = p_fs->root_dir;
@@ -3818,7 +3867,10 @@ static int exfat_read_root(struct inode *inode)
EXFAT_I(inode)->mmu_private = i_size_read(inode);

exfat_save_attr(inode, ATTR_SUBDIR);
- inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
+ curtime = current_time(inode);
+ inode->i_mtime = curtime;
+ inode->i_atime = curtime;
+ inode->i_ctime = curtime;
set_nlink(inode, info.NumSubdirs + 2);

return 0;
--
2.20.1

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