Hi all
Ping again, any comments are welcome

Justin

On Mon, 29 Dec 2014 20:49:40 +0800 from [email protected] wrote:
> This patch is to fix the below warnings generated by sparse:
>  warning: incorrect type in argument 1 (different address spaces)
>  expected void const volatile [noderef] <asn:1>*<noident>
>  got int *<noident>
> Adding the macro "__user" can suppress the warnings, and aslo some lines
> are adjusted for 80 chars line limitation.
> Already checked by sparse "C=2"
>
> Signed-off-by: Jia He <[email protected]>
> Cc: Oleg Drokin <[email protected]> 
> Cc: Andreas Dilger <[email protected]> 
> Cc: Greg Kroah-Hartman <[email protected]>
> ---
>  .../staging/lustre/lustre/include/lprocfs_status.h | 18 ++++-----
>  .../lustre/lustre/obdclass/lprocfs_status.c        |  6 +--
>  drivers/staging/lustre/lustre/osc/lproc_osc.c      | 44 
> +++++++++++-----------
>  drivers/staging/lustre/lustre/osc/osc_request.c    |  6 +--
>  .../staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c    |  6 +--
>  5 files changed, 40 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h 
> b/drivers/staging/lustre/lustre/include/lprocfs_status.h
> index cfe503b..ed4932f 100644
> --- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
> +++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
> @@ -631,13 +631,13 @@ extern int lprocfs_wr_timeouts(struct file *file, const 
> char *buffer,
>                              unsigned long count, void *data);
>  extern int lprocfs_wr_evict_client(struct file *file, const char *buffer,
>                           size_t count, loff_t *off);
> -extern int lprocfs_wr_ping(struct file *file, const char *buffer,
> +extern int lprocfs_wr_ping(struct file *file, const char __user *buffer,
>                          size_t count, loff_t *off);
> -extern int lprocfs_wr_import(struct file *file, const char *buffer,
> +extern int lprocfs_wr_import(struct file *file, const char __user *buffer,
>                     size_t count, loff_t *off);
>  extern int lprocfs_rd_pinger_recov(struct seq_file *m, void *n);
> -extern int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
> -                                size_t count, loff_t *off);
> +extern int lprocfs_wr_pinger_recov(struct file *file,
> +             const char __user *buffer, size_t count, loff_t *off);
>  
>  /* Statfs helpers */
>  extern int lprocfs_rd_blksize(struct seq_file *m, void *data);
> @@ -650,9 +650,9 @@ extern int lprocfs_rd_filesfree(struct seq_file *m, void 
> *data);
>  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,
> -                                 __u64 *val);
> -extern int lprocfs_write_frac_u64_helper(const char *buffer,
> +extern int lprocfs_write_u64_helper(const char __user *buffer,
> +                                     unsigned long count, __u64 *val);
> +extern int lprocfs_write_frac_u64_helper(const char __user *buffer,
>                                        unsigned long count,
>                                        __u64 *val, int mult);
>  extern char *lprocfs_find_named_value(const char *buffer, const char *name,
> @@ -716,7 +716,7 @@ static struct file_operations name##_fops = {             
>                 \
>               return lprocfs_rd_##type(m, m->private);                \
>       }                                                               \
>       static ssize_t name##_##type##_seq_write(struct file *file,     \
> -                     const char *buffer, size_t count, loff_t *off)  \
> +             const char __user *buffer, size_t count, loff_t *off)   \
>       {                                                               \
>               struct seq_file *seq = file->private_data;              \
>               return lprocfs_wr_##type(file, buffer,                  \
> @@ -726,7 +726,7 @@ static struct file_operations name##_fops = {             
>                 \
>  
>  #define LPROC_SEQ_FOPS_WR_ONLY(name, type)                           \
>       static ssize_t name##_##type##_write(struct file *file,         \
> -                     const char *buffer, size_t count, loff_t *off)  \
> +             const char __user *buffer, size_t count, loff_t *off)   \
>       {                                                               \
>               return lprocfs_wr_##type(file, buffer, count, off);     \
>       }                                                               \
> diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c 
> b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> index 3b7dfc3..9a84b52 100644
> --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> @@ -1849,15 +1849,15 @@ int lprocfs_seq_read_frac_helper(struct seq_file *m, 
> long val, int mult)
>  }
>  EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
>  
> -int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
> +int lprocfs_write_u64_helper(const char __user *buffer, unsigned long count,
>                            __u64 *val)
>  {
>       return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
>  }
>  EXPORT_SYMBOL(lprocfs_write_u64_helper);
>  
> -int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
> -                           __u64 *val, int mult)
> +int lprocfs_write_frac_u64_helper(const char __user *buffer,
> +                             unsigned long count, __u64 *val, int mult)
>  {
>       char kernbuf[22], *end, *pbuf;
>       __u64 whole, frac = 0, units;
> diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c 
> b/drivers/staging/lustre/lustre/osc/lproc_osc.c
> index 9f719bc..507592c 100644
> --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
> +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
> @@ -53,8 +53,8 @@ static int osc_active_seq_show(struct seq_file *m, void *v)
>       return rc;
>  }
>  
> -static ssize_t osc_active_seq_write(struct file *file, const char *buffer,
> -                                 size_t count, loff_t *off)
> +static ssize_t osc_active_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *dev = ((struct seq_file 
> *)file->private_data)->private;
>       int val, rc;
> @@ -88,7 +88,7 @@ static int osc_max_rpcs_in_flight_seq_show(struct seq_file 
> *m, void *v)
>  }
>  
>  static ssize_t osc_max_rpcs_in_flight_seq_write(struct file *file,
> -                     const char *buffer, size_t count, loff_t *off)
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *dev = ((struct seq_file 
> *)file->private_data)->private;
>       struct client_obd *cli = &dev->u.cli;
> @@ -130,8 +130,8 @@ static int osc_max_dirty_mb_seq_show(struct seq_file *m, 
> void *v)
>       return lprocfs_seq_read_frac_helper(m, val, mult);
>  }
>  
> -static ssize_t osc_max_dirty_mb_seq_write(struct file *file, const char 
> *buffer,
> -                                   size_t count, loff_t *off)
> +static ssize_t osc_max_dirty_mb_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *dev = ((struct seq_file 
> *)file->private_data)->private;
>       struct client_obd *cli = &dev->u.cli;
> @@ -233,8 +233,8 @@ static int osc_cur_grant_bytes_seq_show(struct seq_file 
> *m, void *v)
>       return rc;
>  }
>  
> -static ssize_t osc_cur_grant_bytes_seq_write(struct file *file, const char 
> *buffer,
> -                               size_t count, loff_t *off)
> +static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
> +             const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       struct client_obd *cli = &obd->u.cli;
> @@ -290,7 +290,7 @@ static int osc_grant_shrink_interval_seq_show(struct 
> seq_file *m, void *v)
>  }
>  
>  static ssize_t osc_grant_shrink_interval_seq_write(struct file *file,
> -                             const char *buffer, size_t count, loff_t *off)
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       int val, rc;
> @@ -322,8 +322,8 @@ static int osc_checksum_seq_show(struct seq_file *m, void 
> *v)
>                       obd->u.cli.cl_checksum ? 1 : 0);
>  }
>  
> -static ssize_t osc_checksum_seq_write(struct file *file, const char *buffer,
> -                        size_t count, loff_t *off)
> +static ssize_t osc_checksum_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       int val, rc;
> @@ -362,8 +362,8 @@ static int osc_checksum_type_seq_show(struct seq_file *m, 
> void *v)
>       return 0;
>  }
>  
> -static ssize_t osc_checksum_type_seq_write(struct file *file, const char 
> *buffer,
> -                             size_t count, loff_t *off)
> +static ssize_t osc_checksum_type_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       int i;
> @@ -401,8 +401,8 @@ static int osc_resend_count_seq_show(struct seq_file *m, 
> void *v)
>       return seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
>  }
>  
> -static ssize_t osc_resend_count_seq_write(struct file *file, const char 
> *buffer,
> -                            size_t count, loff_t *off)
> +static ssize_t osc_resend_count_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       int val, rc;
> @@ -428,8 +428,8 @@ static int osc_contention_seconds_seq_show(struct 
> seq_file *m, void *v)
>       return seq_printf(m, "%u\n", od->od_contention_time);
>  }
>  
> -static ssize_t osc_contention_seconds_seq_write(struct file *file, const 
> char *buffer,
> -                                  size_t count, loff_t *off)
> +static ssize_t osc_contention_seconds_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       struct osc_device *od  = obd2osc_dev(obd);
> @@ -447,8 +447,8 @@ static int osc_lockless_truncate_seq_show(struct seq_file 
> *m, void *v)
>       return seq_printf(m, "%u\n", od->od_lockless_truncate);
>  }
>  
> -static ssize_t osc_lockless_truncate_seq_write(struct file *file, const char 
> *buffer,
> -                                 size_t count, loff_t *off)
> +static ssize_t osc_lockless_truncate_seq_write(struct file *file,
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
>       struct osc_device *od  = obd2osc_dev(obd);
> @@ -472,7 +472,7 @@ static int osc_obd_max_pages_per_rpc_seq_show(struct 
> seq_file *m, void *v)
>  }
>  
>  static ssize_t osc_obd_max_pages_per_rpc_seq_write(struct file *file,
> -                             const char *buffer, size_t count, loff_t *off)
> +                     const char __user *buffer, size_t count, loff_t *off)
>  {
>       struct obd_device *dev = ((struct seq_file 
> *)file->private_data)->private;
>       struct client_obd *cli = &dev->u.cli;
> @@ -664,8 +664,8 @@ static int osc_rpc_stats_seq_show(struct seq_file *seq, 
> void *v)
>  }
>  #undef pct
>  
> -static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
> -                                    size_t len, loff_t *off)
> +static ssize_t osc_rpc_stats_seq_write(struct file *file,
> +                     const char __user *buf, size_t len, loff_t *off)
>  {
>       struct seq_file *seq = file->private_data;
>       struct obd_device *dev = seq->private;
> @@ -702,7 +702,7 @@ static int osc_stats_seq_show(struct seq_file *seq, void 
> *v)
>       return 0;
>  }
>  
> -static ssize_t osc_stats_seq_write(struct file *file, const char *buf,
> +static ssize_t osc_stats_seq_write(struct file *file, const char __user *buf,
>                                  size_t len, loff_t *off)
>  {
>       struct seq_file *seq = file->private_data;
> diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c 
> b/drivers/staging/lustre/lustre/osc/osc_request.c
> index b9450b9..ca65d92 100644
> --- a/drivers/staging/lustre/lustre/osc/osc_request.c
> +++ b/drivers/staging/lustre/lustre/osc/osc_request.c
> @@ -2598,7 +2598,7 @@ static int osc_getstripe(struct lov_stripe_md *lsm, 
> struct lov_user_md *lump)
>       /* we only need the header part from user space to get lmm_magic and
>        * lmm_stripe_count, (the header part is common to v1 and v3) */
>       lum_size = sizeof(struct lov_user_md_v1);
> -     if (copy_from_user(&lum, lump, lum_size))
> +     if (copy_from_user(&lum, (void __user *)lump, lum_size))
>               return -EFAULT;
>  
>       if ((lum.lmm_magic != LOV_USER_MAGIC_V1) &&
> @@ -2632,7 +2632,7 @@ static int osc_getstripe(struct lov_stripe_md *lsm, 
> struct lov_user_md *lump)
>       lumk->lmm_oi = lsm->lsm_oi;
>       lumk->lmm_stripe_count = 1;
>  
> -     if (copy_to_user(lump, lumk, lum_size))
> +     if (copy_to_user((void __user *)lump, lumk, lum_size))
>               rc = -EFAULT;
>  
>       if (lumk != &lum)
> @@ -2691,7 +2691,7 @@ static int osc_iocontrol(unsigned int cmd, struct 
> obd_export *exp, int len,
>  
>               memcpy(data->ioc_inlbuf2, &obd->obd_uuid, sizeof(uuid));
>  
> -             err = copy_to_user((void *)uarg, buf, len);
> +             err = copy_to_user((void __user *)uarg, buf, len);
>               if (err)
>                       err = -EFAULT;
>               obd_ioctl_freedata(buf, len);
> diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c 
> b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
> index 4011e00..0fb32e8 100644
> --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
> +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
> @@ -1223,7 +1223,7 @@ EXPORT_SYMBOL(lprocfs_wr_evict_client);
>  
>  #undef BUFLEN
>  
> -int lprocfs_wr_ping(struct file *file, const char *buffer,
> +int lprocfs_wr_ping(struct file *file, const char __user *buffer,
>                   size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
> @@ -1251,7 +1251,7 @@ EXPORT_SYMBOL(lprocfs_wr_ping);
>   * The connection UUID is a node's primary NID. For example,
>   * "echo connection=192.168.0.1@tcp0::instance > .../import".
>   */
> -int lprocfs_wr_import(struct file *file, const char *buffer,
> +int lprocfs_wr_import(struct file *file, const char __user *buffer,
>                     size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;
> @@ -1329,7 +1329,7 @@ int lprocfs_rd_pinger_recov(struct seq_file *m, void *n)
>  }
>  EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
>  
> -int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
> +int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer,
>                     size_t count, loff_t *off)
>  {
>       struct obd_device *obd = ((struct seq_file 
> *)file->private_data)->private;

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