net/iucv: fix virtual vs physical address confusion

Fix virtual vs physical address confusion. This does not fix a bug
since virtual and physical address spaces are currently the same.

Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 6334f64f04d5f28c7e01e959d18b343d7c641336..9e62783e6acb5aaf8fc90c362e25be7dc2fc9247 100644 (file)
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -286,6 +286,7 @@ static union iucv_param *iucv_param_irq[NR_CPUS];
  */
 static inline int __iucv_call_b2f0(int command, union iucv_param *parm)
 {
+       unsigned long reg1 = virt_to_phys(parm);
        int cc;
 
        asm volatile(
@@ -296,7 +297,7 @@ static inline int __iucv_call_b2f0(int command, union iucv_param *parm)
                "       srl     %[cc],28\n"
                : [cc] "=&d" (cc), "+m" (*parm)
                : [reg0] "d" ((unsigned long)command),
-                 [reg1] "d" ((unsigned long)parm)
+                 [reg1] "d" (reg1)
                : "cc", "0", "1");
        return cc;
 }
@@ -1123,7 +1124,7 @@ int __iucv_message_receive(struct iucv_path *path, struct iucv_message *msg,
 
        parm = iucv_param[smp_processor_id()];
        memset(parm, 0, sizeof(union iucv_param));
-       parm->db.ipbfadr1 = (u32)(addr_t) buffer;
+       parm->db.ipbfadr1 = (u32)virt_to_phys(buffer);
        parm->db.ipbfln1f = (u32) size;
        parm->db.ipmsgid = msg->id;
        parm->db.ippathid = path->pathid;
@@ -1241,7 +1242,7 @@ int iucv_message_reply(struct iucv_path *path, struct iucv_message *msg,
                parm->dpl.iptrgcls = msg->class;
                memcpy(parm->dpl.iprmmsg, reply, min_t(size_t, size, 8));
        } else {
-               parm->db.ipbfadr1 = (u32)(addr_t) reply;
+               parm->db.ipbfadr1 = (u32)virt_to_phys(reply);
                parm->db.ipbfln1f = (u32) size;
                parm->db.ippathid = path->pathid;
                parm->db.ipflags1 = flags;
@@ -1293,7 +1294,7 @@ int __iucv_message_send(struct iucv_path *path, struct iucv_message *msg,
                parm->dpl.ipmsgtag = msg->tag;
                memcpy(parm->dpl.iprmmsg, buffer, 8);
        } else {
-               parm->db.ipbfadr1 = (u32)(addr_t) buffer;
+               parm->db.ipbfadr1 = (u32)virt_to_phys(buffer);
                parm->db.ipbfln1f = (u32) size;
                parm->db.ippathid = path->pathid;
                parm->db.ipflags1 = flags | IUCV_IPNORPY;
@@ -1378,7 +1379,7 @@ int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,
                parm->dpl.iptrgcls = msg->class;
                parm->dpl.ipsrccls = srccls;
                parm->dpl.ipmsgtag = msg->tag;
-               parm->dpl.ipbfadr2 = (u32)(addr_t) answer;
+               parm->dpl.ipbfadr2 = (u32)virt_to_phys(answer);
                parm->dpl.ipbfln2f = (u32) asize;
                memcpy(parm->dpl.iprmmsg, buffer, 8);
        } else {
@@ -1387,9 +1388,9 @@ int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,
                parm->db.iptrgcls = msg->class;
                parm->db.ipsrccls = srccls;
                parm->db.ipmsgtag = msg->tag;
-               parm->db.ipbfadr1 = (u32)(addr_t) buffer;
+               parm->db.ipbfadr1 = (u32)virt_to_phys(buffer);
                parm->db.ipbfln1f = (u32) size;
-               parm->db.ipbfadr2 = (u32)(addr_t) answer;
+               parm->db.ipbfadr2 = (u32)virt_to_phys(answer);
                parm->db.ipbfln2f = (u32) asize;
        }
        rc = iucv_call_b2f0(IUCV_SEND, parm);