Staging: unisys: Fix sparse warnings

Fix sparse warnings caused by incorrect references to IO space.
Signed-off-by: NKen Cox <jkc@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/uislib/uislib.c

@@ -131,7 +131,7 @@ init_msg_header(CONTROLVM_MESSAGE *msg, U32 id, uint rsp, uint svr)
 static __iomem void *
 init_vbus_channel(U64 channelAddr, U32 channelBytes, int isServer)
 {
-	void *rc = NULL;
+	void __iomem *rc = NULL;
 	void __iomem *pChan = uislib_ioremap_cache(channelAddr, channelBytes);
 	if (!pChan) {
 		LOGERR("CONTROLVM_BUS_CREATE error: ioremap_cache of channelAddr:%Lx for channelBytes:%llu failed",

drivers/staging/unisys/visorchannel/visorchannel.h

@@ -73,11 +73,11 @@ void visorchannel_debug(VISORCHANNEL *channel, int nQueues,
 			struct seq_file *seq, U32 off);
 void visorchannel_dump_section(VISORCHANNEL *chan, char *s,
 			       int off, int len, struct seq_file *seq);
-void *visorchannel_get_header(VISORCHANNEL *channel);
+void __iomem *visorchannel_get_header(VISORCHANNEL *channel);
 
 #define	VISORCHANNEL_CHANGE_SERVER_STATE(chan, chanId, newstate)	\
 	do {								\
-		U8 *p = (U8 *)visorchannel_get_header(chan);		\
+		U8 *p = (U8 __iomem *)visorchannel_get_header(chan);	\
 		if (p) {						\
 			ULTRA_CHANNEL_SERVER_TRANSITION(p, chanId, SrvState, \
 							newstate, logCtx); \
@@ -92,7 +92,7 @@ void *visorchannel_get_header(VISORCHANNEL *channel);
 
 #define	VISORCHANNEL_CHANGE_CLIENT_STATE(chan, chanId, newstate)	\
 	do {								\
-		U8 *p = (U8 *)visorchannel_get_header(chan);		\
+		U8 *p = (U8 __iomem *)visorchannel_get_header(chan);	\
 		if (p) {						\
 			ULTRA_CHANNEL_CLIENT_TRANSITION(p, chanId,	\
 							newstate, logCtx); \

drivers/staging/unisys/visorchannel/visorchannel_funcs.c

@@ -279,10 +279,10 @@ visorchannel_clear(VISORCHANNEL *channel, ulong offset, U8 ch, ulong nbytes)
 }
 EXPORT_SYMBOL_GPL(visorchannel_clear);
 
-void *
+void __iomem  *
 visorchannel_get_header(VISORCHANNEL *channel)
 {
-	return (void *) &(channel->chan_hdr);
+	return (void __iomem *) &(channel->chan_hdr);
 }
 EXPORT_SYMBOL_GPL(visorchannel_get_header);
 

drivers/staging/unisys/visorutil/memregion.h

@@ -38,6 +38,6 @@ HOSTADDRESS visor_memregion_get_physaddr(MEMREGION *memregion);
 ulong visor_memregion_get_nbytes(MEMREGION *memregion);
 void memregion_dump(MEMREGION *memregion, char *s,
 		    ulong off, ulong len, struct seq_file *seq);
-void *visor_memregion_get_pointer(MEMREGION *memregion);
+void __iomem *visor_memregion_get_pointer(MEMREGION *memregion);
 
 #endif

drivers/staging/unisys/visorutil/memregion_direct.c

@@ -29,7 +29,7 @@
 struct MEMREGION_Tag {
 	HOSTADDRESS physaddr;
 	ulong nbytes;
-	void *mapped;
+	void __iomem *mapped;
 	BOOL requested;
 	BOOL overlapped;
 };
@@ -93,7 +93,7 @@ visor_memregion_create_overlapped(MEMREGION *parent, ulong offset, ulong nbytes)
 
 	memregion->physaddr = parent->physaddr + offset;
 	memregion->nbytes = nbytes;
-	memregion->mapped = ((u8 *) (parent->mapped)) + offset;
+	memregion->mapped = ((u8 __iomem *) (parent->mapped)) + offset;
 	memregion->requested = FALSE;
 	memregion->overlapped = TRUE;
 	return memregion;
@@ -149,7 +149,7 @@ visor_memregion_get_nbytes(MEMREGION *memregion)
 }
 EXPORT_SYMBOL_GPL(visor_memregion_get_nbytes);
 
-void *
+void __iomem *
 visor_memregion_get_pointer(MEMREGION *memregion)
 {
 	return memregion->mapped;