From 323f2e45fb38694cd000f7227651af9a2d4c78c8 Mon Sep 17 00:00:00 2001
From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Thu, 5 Aug 2010 19:30:01 +0000
Subject: [PATCH] staging: hv: Fixed the value of the 64bit-hole inside ring
buffer
commit e5fa721d1c2a54261a37eb59686e18dee34b6af6 upstream.
Fixed the value of the 64bit-hole inside ring buffer, this
caused a problem on Hyper-V when running checked Windows builds.
Checked builds of Windows are used internally and given to external
system integrators at times. They are builds that for example that all
elements in a structure follow the definition of that Structure. The bug
this fixed was for a field that we did not fill in at all (Because we do
Not use it on the Linux side), and the checked build of windows gives
errors on it internally to the Windows logs.
This fixes that error.
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/staging/hv/RingBuffer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/hv/RingBuffer.c b/drivers/staging/hv/RingBuffer.c
index f69ae33a91e3..3a38103ecfbd 100644
--- a/drivers/staging/hv/RingBuffer.c
+++ b/drivers/staging/hv/RingBuffer.c
@@ -192,7 +192,7 @@ Description:
static inline u64
GetRingBufferIndices(RING_BUFFER_INFO* RingInfo)
{
- return ((u64)RingInfo->RingBuffer->WriteIndex << 32) || RingInfo->RingBuffer->ReadIndex;
+ return (u64)RingInfo->RingBuffer->WriteIndex << 32;
}
--
2.34.1