[PATCH] net/af_iucv: fix virtual vs physical address confusion

Alexander Gordeev
2024-02-15T08:05:07Z

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

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
---
net/iucv/af_iucv.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 498a0c35b7bb..4aa1c72e6c49 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1060,13 +1060,12 @@ static int iucv_sock_sendmsg(struct socket *sock, struct msghdr *msg,
int i;

/* skip iucv_array lying in the headroom */
- iba[0].address = (u32)(addr_t)skb->data;
+ iba[0].address = (u32)virt_to_phys(skb->data);
iba[0].length = (u32)skb_headlen(skb);
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];

- iba[i + 1].address =
- (u32)(addr_t)skb_frag_address(frag);
+ iba[i + 1].address = (u32)virt_to_phys(skb_frag_address(frag));
iba[i + 1].length = (u32)skb_frag_size(frag);
}
err = pr_iucv->message_send(iucv->path, &txmsg,
@@ -1162,13 +1161,12 @@ static void iucv_process_message(struct sock *sk, struct sk_buff *skb,
struct iucv_array *iba = (struct iucv_array *)skb->head;
int i;

- iba[0].address = (u32)(addr_t)skb->data;
+ iba[0].address = (u32)virt_to_phys(skb->data);
iba[0].length = (u32)skb_headlen(skb);
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];

- iba[i + 1].address =
- (u32)(addr_t)skb_frag_address(frag);
+ iba[i + 1].address = (u32)virt_to_phys(skb_frag_address(frag));
iba[i + 1].length = (u32)skb_frag_size(frag);
}
rc = pr_iucv->message_receive(path, msg,
--
2.40.1