[PATCH v4 4/5] HID: hv: Remove dependencies on PAGE_SIZE for ring buffer

From: Maya Nakamura
Date: Fri Jul 12 2019 - 04:27:42 EST


Define the ring buffer size as a constant expression because it should
not depend on the guest page size.

Signed-off-by: Maya Nakamura <m.maya.nakamura@xxxxxxxxx>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
---
drivers/hid/hid-hyperv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index 7795831d37c2..cc5b09b87ab0 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -104,8 +104,8 @@ struct synthhid_input_report {

#pragma pack(pop)

-#define INPUTVSC_SEND_RING_BUFFER_SIZE (10*PAGE_SIZE)
-#define INPUTVSC_RECV_RING_BUFFER_SIZE (10*PAGE_SIZE)
+#define INPUTVSC_SEND_RING_BUFFER_SIZE (40 * 1024)
+#define INPUTVSC_RECV_RING_BUFFER_SIZE (40 * 1024)


enum pipe_prot_msg_type {
--
2.17.1