Functions that work on a pointer to virtual memory such as
virt_to_pfn() and users of that function such as
virt_to_page() are supposed to pass a pointer to virtual
memory, ideally a (void *) or other pointer. However since
many architectures implement virt_to_pfn() as a macro,
this function becomes polymorphic and accepts both a
(unsigned long) and a (void *).
If we instead implement a proper virt_to_pfn(void *addr)
function the following happens (occurred on arch/arm):
net/rds/message.c:357:56: warning: passing argument 1
of 'virt_to_pfn' makes pointer from integer without a
cast [-Wint-conversion]
Fix this with an explicit cast.
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>
Cc: linux-rdma@xxxxxxxxxxxxxxx
Cc: rds-devel@xxxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
net/rds/message.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rds/message.c b/net/rds/message.c
index d74be4e3f3fa..44dbc612ef54 100644
--- a/net/rds/message.c
+++ b/net/rds/message.c
@@ -354,7 +354,7 @@ struct rds_message *rds_message_map_pages(unsigned long *page_addrs, unsigned in
for (i = 0; i < rm->data.op_nents; ++i) {
sg_set_page(&rm->data.op_sg[i],
- virt_to_page(page_addrs[i]),
+ virt_to_page((void *)page_addrs[i]),
PAGE_SIZE, 0);
}
--
2.37.2
