diff --git a/patches/kdrivers/include/if_wanpipe_common.h b/patches/kdrivers/include/if_wanpipe_common.h
index e7f4fca..1bf0c1b 100644
--- a/patches/kdrivers/include/if_wanpipe_common.h
+++ b/patches/kdrivers/include/if_wanpipe_common.h
@@ -49,7 +49,7 @@ typedef struct {
 #if defined (__LINUX__)
        int     (*change_mtu)(netdevice_t *dev, int new_mtu);
 #endif
-} wanpipe_common_iface_t;
+} __no_const wanpipe_common_iface_t;
 
 typedef struct wanpipe_common {
 #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
diff --git a/patches/kdrivers/include/sdla_front_end.h b/patches/kdrivers/include/sdla_front_end.h
index 11d7f3c..61bb8a2 100644
--- a/patches/kdrivers/include/sdla_front_end.h
+++ b/patches/kdrivers/include/sdla_front_end.h
@@ -630,7 +630,7 @@ typedef struct {
 	/* Enable/Disable Clock recovery from the line */
 	int		(*clock_ctrl)(sdla_fe_t*, u_int8_t /* WANOPT_NO/WANOPT_YES */);
 	u_int32_t 	(*read_tx_alarm)(sdla_fe_t *fe, int);
-} sdla_fe_iface_t;
+} __no_const sdla_fe_iface_t;
 
 /* 
 ** Sangoma Front-End interface structure (new version)
diff --git a/patches/kdrivers/include/sdladrv.h b/patches/kdrivers/include/sdladrv.h
index 4398f4c..5e34811 100644
--- a/patches/kdrivers/include/sdladrv.h
+++ b/patches/kdrivers/include/sdladrv.h
@@ -743,7 +743,7 @@ typedef struct sdlahw_iface
 	int		(*usb_flush_err_stats)(void *phw);
 	void		(*reset_fe)(void*);            
 
-} sdlahw_iface_t;
+} __no_const sdlahw_iface_t;
 
 typedef struct sdla_hw_type_cnt
 {
@@ -772,7 +772,7 @@ typedef struct sdla_hw_type_cnt
 typedef struct sdladrv_callback_ {
 	int (*add_device)(void);
 	int (*delete_device)(char*);
-} sdladrv_callback_t;
+} __no_const sdladrv_callback_t;
 
 #if defined(SDLADRV_HW_IFACE)
 typedef struct sdladrv_hw_probe_iface {
diff --git a/patches/kdrivers/include/wanpipe_cdev_iface.h b/patches/kdrivers/include/wanpipe_cdev_iface.h
index bccf2e2..486572e 100644
--- a/patches/kdrivers/include/wanpipe_cdev_iface.h
+++ b/patches/kdrivers/include/wanpipe_cdev_iface.h
@@ -32,7 +32,7 @@ typedef struct wanpipe_cdev_ops
 	/* handle transmission time out */
 	int (*tx_timeout)(void* dev_ptr);
 
-}wanpipe_cdev_ops_t;
+} __no_const wanpipe_cdev_ops_t;
 
 
 
diff --git a/patches/kdrivers/include/wanpipe_defines.h b/patches/kdrivers/include/wanpipe_defines.h
index 9c62b8d..5269262 100644
--- a/patches/kdrivers/include/wanpipe_defines.h
+++ b/patches/kdrivers/include/wanpipe_defines.h
@@ -895,7 +895,7 @@ typedef struct wan_rtp_pkt {
 
 #if defined(HAVE_NET_DEVICE_OPS) || LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)
 
-#define WAN_DECLARE_NETDEV_OPS(_ops_name) static struct net_device_ops _ops_name = {0};
+#define WAN_DECLARE_NETDEV_OPS(_ops_name) static net_device_ops_no_const _ops_name = {0};
 
 #define WAN_NETDEV_OPS_BIND(dev,_ops_name)  dev->netdev_ops = &_ops_name
 
diff --git a/patches/kdrivers/include/wanpipe_wanrouter.h b/patches/kdrivers/include/wanpipe_wanrouter.h
index 7b2a919..4a05fa5 100644
--- a/patches/kdrivers/include/wanpipe_wanrouter.h
+++ b/patches/kdrivers/include/wanpipe_wanrouter.h
@@ -362,7 +362,7 @@ typedef struct wan_device
 		void	(*ringdetect) (void* card_id, wan_event_t*);	
 		void	(*linkstatus) (void* card_id, wan_event_t*);
 		void	(*polarityreverse) (void* card_id, wan_event_t*);
-	} event_callback;
+	} __no_const event_callback;
 	
 	unsigned char 		ignore_front_end_status;
 	unsigned char		line_idle;
diff --git a/patches/kdrivers/src/net/sdladrv.c b/patches/kdrivers/src/net/sdladrv.c
index 22d4b4f..d5b9fbb 100644
--- a/patches/kdrivers/src/net/sdladrv.c
+++ b/patches/kdrivers/src/net/sdladrv.c
@@ -343,12 +343,12 @@ static unsigned	sdla_test_memregion (sdlahw_t* hw, unsigned len);
 static unsigned short sdla_checksum (unsigned char* buf, unsigned len);
 static int sdla_init_pci_slot(sdlahw_t *);
 
-static sdlahw_card_t* sdla_card_register(u8 hw_type, int bus_no, int slot_no, int ioport, char*);
+static sdlahw_card_t* sdla_card_register(u8 hw_type, int bus_no, int slot_no, int ioport, const char*);
 static int sdla_card_unregister (sdlahw_card_t*);
-static sdlahw_card_t* sdla_card_search(u8 hw_type, int bus_no, int slot_no, int ioport, char*);
+static sdlahw_card_t* sdla_card_search(u8 hw_type, int bus_no, int slot_no, int ioport, const char*);
 static int sdla_card_info(sdlahw_card_t*);
 
-sdlahw_cpu_t* sdla_hwcpu_search(u8, int, int, int, int, char*);
+sdlahw_cpu_t* sdla_hwcpu_search(u8, int, int, int, int, const char*);
 static sdlahw_cpu_t* sdla_hwcpu_register(sdlahw_card_t*, int, int, void*);
 static int sdla_hwcpu_unregister(sdlahw_cpu_t*);
 static int sdla_hwcpu_info(sdlahw_cpu_t*);
@@ -4339,7 +4339,7 @@ static int sdla_card_info(sdlahw_card_t *hwcard)
 }
 
 static sdlahw_card_t*
-sdla_card_register(u8 hw_type, int bus_no, int slot_no, int ioport, char *bus_id)
+sdla_card_register(u8 hw_type, int bus_no, int slot_no, int ioport, const char *bus_id)
 {
 	sdlahw_card_t	*new_hwcard, *last_hwcard;
 
@@ -4408,7 +4408,7 @@ sdla_card_unregister(sdlahw_card_t* hwcard)
 }
 
 static sdlahw_card_t*
-sdla_card_search(u8 hw_type, int bus_no, int slot_no, int ioport, char *bus_id)
+sdla_card_search(u8 hw_type, int bus_no, int slot_no, int ioport, const char *bus_id)
 {
 	sdlahw_card_t*	tmp;
 	
@@ -4547,7 +4547,7 @@ static int sdla_hwcpu_unregister(sdlahw_cpu_t *hwcpu)
 }
 
 sdlahw_cpu_t*
-sdla_hwcpu_search(u8 hw_type, int bus_no, int slot_no, int ioport, int cpu_no, char *bus_id)
+sdla_hwcpu_search(u8 hw_type, int bus_no, int slot_no, int ioport, int cpu_no, const char *bus_id)
 {
 	sdlahw_cpu_t*	tmp;