Re: [HPDD-discuss] [PATCH] staging: lustre: fix sparse warning on LPROC_SEQ_FOPS macros

This patch fix a sparse warning in lustre sources warning: incorrect type in argument 1 (different address spaces) expected void [noderef] <asn:1>*to got char *<noident>

diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c

@@ -87,13 +87,21 @@ fld_proc_hash_seq_show(struct seq_file *m, void *unused) } static ssize_t -fld_proc_hash_seq_write(struct file *file, const char *buffer, - size_t count, loff_t *off) +fld_proc_hash_seq_write(struct file *file, + const char __user *buffer, + size_t count, loff_t *off) { struct lu_client_fld *fld; struct lu_fld_hash *hash = NULL; + char name[80]; int i; + if (count > 80) + return -ENAMETOOLONG; + + if (copy_from_user(name, buffer, count) != 0) + return -EFAULT; + fld = ((struct seq_file *)file->private_data)->private; LASSERT(fld != NULL);