The hvc_lguest uses __pa in the const initialization.
In some architectures, __pa() is not constant so this fails in compiles.
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
drivers/char/hvc_lguest.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/char/hvc_lguest.c b/drivers/char/hvc_lguest.c
index feeccba..c7d7d4c 100644
--- a/drivers/char/hvc_lguest.c
+++ b/drivers/char/hvc_lguest.c
@@ -42,7 +42,6 @@
* use of physical address for the buffer itself. */
static char inbuf[256];
static struct lguest_dma cons_input = { .used_len = 0,
- .addr[0] = __pa(inbuf),
.len[0] = sizeof(inbuf),
.len[1] = 0 };
@@ -114,6 +113,13 @@ static struct hv_ops lguest_cons = {
* (0), and the struct hv_ops containing the put_chars() function. */
static int __init cons_init(void)
{
+ /*
+ * We can't initialize using __pa in const declarations,
+ * since __pa(inbuf) does not evaluate into a constant on
+ * all architectures (namely x86_64).
+ */
+ cons_input.addr[0] = __pa(inbuf);
+
if (strcmp(paravirt_ops.name, "lguest") != 0)
return 0;
--
1.4.4.4
--
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