linux-kernel - [PATCH v4 4/5] HID: hv: Remove dependencies on PAGE

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Message-ID: <5cfa6f8ded52ee709ede57a97fc71e8671b1ceb1.1562916939.git.m.maya.nakamura@gmail.com>
Date:   Fri, 12 Jul 2019 08:27:38 +0000
From:   Maya Nakamura <m.maya.nakamura@...il.com>
To:     mikelley@...rosoft.com, kys@...rosoft.com, haiyangz@...rosoft.com,
        sthemmin@...rosoft.com, sashal@...nel.org
Cc:     x86@...nel.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 4/5] HID: hv: Remove dependencies on PAGE_SIZE for ring
 buffer

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@...il.com>
Reviewed-by: Michael Kelley <mikelley@...rosoft.com>
---
 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