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Staging: lustre: llite: fix some sparse warnings about userspace pointer

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Add __user macro to the function declarations that accept userspace pointers as
arguments.

Signed-off-by: Anh Le <anhlq2110@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anh Le
2014-10-12 16:07:10 +07:00
committed by Greg Kroah-Hartman
parent 0017af422b
commit 5a13503ecd
3 changed files with 38 additions and 28 deletions
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6
drivers/staging/lustre/lustre/include/lprocfs_status.h
View File

@@ -374,8 +374,8 @@ static inline void s2dhms(struct dhms *ts, time_t secs)
#define JOBSTATS_PROCNAME_UID "procname_uid"
#define JOBSTATS_NODELOCAL "nodelocal"
extern int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
int *val, int mult);
extern int lprocfs_write_frac_helper(const char __user *buffer,
unsigned long count, int *val, int mult);
extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
long val, int mult);
#if defined (CONFIG_PROC_FS)
@@ -647,7 +647,7 @@ extern int lprocfs_rd_kbytesavail(struct seq_file *m, void *data);
extern int lprocfs_rd_filestotal(struct seq_file *m, void *data);
extern int lprocfs_rd_filesfree(struct seq_file *m, void *data);
extern int lprocfs_write_helper(const char *buffer, unsigned long count,
extern int lprocfs_write_helper(const char __user *buffer, unsigned long count,
int *val);
extern int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult);
extern int lprocfs_write_u64_helper(const char *buffer, unsigned long count,

56
drivers/staging/lustre/lustre/llite/lproc_llite.c
View File

@@ -227,8 +227,9 @@ static int ll_max_readahead_mb_seq_show(struct seq_file *m, void *v)
return lprocfs_seq_read_frac_helper(m, pages_number, mult);
}
static ssize_t ll_max_readahead_mb_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_max_readahead_mb_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -269,7 +270,7 @@ static int ll_max_readahead_per_file_mb_seq_show(struct seq_file *m, void *v)
}
static ssize_t ll_max_readahead_per_file_mb_seq_write(struct file *file,
const char *buffer,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
@@ -313,7 +314,7 @@ static int ll_max_read_ahead_whole_mb_seq_show(struct seq_file *m, void *unused)
}
static ssize_t ll_max_read_ahead_whole_mb_seq_write(struct file *file,
const char *buffer,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
@@ -469,8 +470,9 @@ static int ll_checksum_seq_show(struct seq_file *m, void *v)
return seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
}
static ssize_t ll_checksum_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_checksum_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -504,8 +506,9 @@ static int ll_max_rw_chunk_seq_show(struct seq_file *m, void *v)
return seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
}
static ssize_t ll_max_rw_chunk_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_max_rw_chunk_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
int rc, val;
@@ -533,8 +536,8 @@ static int ll_rd_track_id(struct seq_file *m, enum stats_track_type type)
}
}
static int ll_wr_track_id(const char *buffer, unsigned long count, void *data,
enum stats_track_type type)
static int ll_wr_track_id(const char __user *buffer, unsigned long count,
void *data, enum stats_track_type type)
{
struct super_block *sb = data;
int rc, pid;
@@ -556,8 +559,9 @@ static int ll_track_pid_seq_show(struct seq_file *m, void *v)
return ll_rd_track_id(m, STATS_TRACK_PID);
}
static ssize_t ll_track_pid_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_track_pid_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *seq = file->private_data;
return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PID);
@@ -569,8 +573,9 @@ static int ll_track_ppid_seq_show(struct seq_file *m, void *v)
return ll_rd_track_id(m, STATS_TRACK_PPID);
}
static ssize_t ll_track_ppid_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_track_ppid_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *seq = file->private_data;
return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PPID);
@@ -582,8 +587,9 @@ static int ll_track_gid_seq_show(struct seq_file *m, void *v)
return ll_rd_track_id(m, STATS_TRACK_GID);
}
static ssize_t ll_track_gid_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_track_gid_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *seq = file->private_data;
return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_GID);
@@ -598,8 +604,9 @@ static int ll_statahead_max_seq_show(struct seq_file *m, void *v)
return seq_printf(m, "%u\n", sbi->ll_sa_max);
}
static ssize_t ll_statahead_max_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_statahead_max_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -628,8 +635,9 @@ static int ll_statahead_agl_seq_show(struct seq_file *m, void *v)
sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
}
static ssize_t ll_statahead_agl_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_statahead_agl_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -672,8 +680,9 @@ static int ll_lazystatfs_seq_show(struct seq_file *m, void *v)
(sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0);
}
static ssize_t ll_lazystatfs_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
static ssize_t ll_lazystatfs_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -787,7 +796,8 @@ static int ll_xattr_cache_seq_show(struct seq_file *m, void *v)
return rc;
}
static ssize_t ll_xattr_cache_seq_write(struct file *file, const char *buffer,
static ssize_t ll_xattr_cache_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *seq = file->private_data;

4
drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
View File

@@ -177,7 +177,7 @@ int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
}
EXPORT_SYMBOL(lprocfs_read_frac_helper);
int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
int *val, int mult)
{
char kernbuf[20], *end, *pbuf;
@@ -1819,7 +1819,7 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
}
EXPORT_SYMBOL(lprocfs_read_helper);
int lprocfs_write_helper(const char *buffer, unsigned long count,
int lprocfs_write_helper(const char __user *buffer, unsigned long count,
int *val)
{
return lprocfs_write_frac_helper(buffer, count, val, 1);