[PATCH] Staging: gdm72xx: Fix sparse warning

[Ksenija Stanojevic]

Fix following sparse warnings by adding new structure for user-space
data (struct data_us) in wm_ioctl.h:

drivers/staging/gdm72xx/gdm_wimax.c:381:37: warning: incorrect type in
argument 1 (different address spaces)
drivers/staging/gdm72xx/gdm_wimax.c:381:37:    expected void [noderef]
<asn:1>*to
drivers/staging/gdm72xx/gdm_wimax.c:381:37:    got void *buf
drivers/staging/gdm72xx/gdm_wimax.c:404:41: warning: incorrect type in
argument 2 (different address spaces)
drivers/staging/gdm72xx/gdm_wimax.c:404:41:    expected void const
[noderef] <asn:1>*from
drivers/staging/gdm72xx/gdm_wimax.c:404:41:    got void *buf

Signed-off-by: Ksenija Stanojevic <ksenija.stanoje...@gmail.com>
---
 drivers/staging/gdm72xx/gdm_wimax.c | 8 ++++----
 drivers/staging/gdm72xx/wm_ioctl.h  | 6 ++++++
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gdm72xx/gdm_wimax.c 
b/drivers/staging/gdm72xx/gdm_wimax.c
index b8eea21..362a980 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -363,7 +363,7 @@ static void kdelete(void **buf)
        }
 }
 
-static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
+static int gdm_wimax_ioctl_get_data(struct data_us *dst, struct data_s *src)
 {
        int size;
 
@@ -379,7 +379,7 @@ static int gdm_wimax_ioctl_get_data(struct data_s *dst, 
struct data_s *src)
        return 0;
 }
 
-static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src)
+static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_us *src)
 {
        if (!src->size) {
                dst->size = 0;
@@ -469,7 +469,7 @@ static int gdm_wimax_ioctl(struct net_device *dev, struct 
ifreq *ifr, int cmd)
                }
                if (req->cmd == SIOCG_DATA) {
                        ret = gdm_wimax_ioctl_get_data(
-                               &req->data, &nic->sdk_data[req->data_id]);
+                               &req->udata, &nic->sdk_data[req->data_id]);
                        if (ret < 0)
                                return ret;
                } else if (req->cmd == SIOCS_DATA) {
@@ -481,7 +481,7 @@ static int gdm_wimax_ioctl(struct net_device *dev, struct 
ifreq *ifr, int cmd)
                                               req->data.buf);
                        }
                        ret = gdm_wimax_ioctl_set_data(
-                               &nic->sdk_data[req->data_id], &req->data);
+                               &nic->sdk_data[req->data_id], &req->udata);
                        if (ret < 0)
                                return ret;
                }
diff --git a/drivers/staging/gdm72xx/wm_ioctl.h 
b/drivers/staging/gdm72xx/wm_ioctl.h
index ed8f649..066765d 100644
--- a/drivers/staging/gdm72xx/wm_ioctl.h
+++ b/drivers/staging/gdm72xx/wm_ioctl.h
@@ -78,6 +78,11 @@ struct data_s {
        void    *buf;
 };
 
+struct data_us {
+       int     size;
+       void __user *buf;
+};
+
 struct wm_req_s {
        union {
                char ifrn_name[IFNAMSIZ];
@@ -85,6 +90,7 @@ struct wm_req_s {
        unsigned short  cmd;
        unsigned short  data_id;
        struct data_s   data;
+       struct data_us  udata;
 
 /* NOTE: sizeof(struct wm_req_s) must be less than sizeof(struct ifreq). */
 };
-- 
1.9.1

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