Author: sephe
Date: Wed Jul 13 06:39:04 2016
New Revision: 302708
URL: https://svnweb.freebsd.org/changeset/base/302708

Log:
  hyperv/bufring: Remove unused fields
  
  MFC after:    1 week
  Sponsored by: Microsoft OSTC
  Differential Revision:        https://reviews.freebsd.org/D7037

Modified:
  head/sys/dev/hyperv/include/hyperv.h
  head/sys/dev/hyperv/vmbus/hv_ring_buffer.c

Modified: head/sys/dev/hyperv/include/hyperv.h
==============================================================================
--- head/sys/dev/hyperv/include/hyperv.h        Wed Jul 13 06:30:33 2016        
(r302707)
+++ head/sys/dev/hyperv/include/hyperv.h        Wed Jul 13 06:39:04 2016        
(r302708)
@@ -471,7 +471,7 @@ typedef struct {
        uint8_t                 reserved[4084];
 
        /*
-        * WARNING: Ring data starts here + ring_data_start_offset
+        * WARNING: Ring data starts here
         *  !!! DO NOT place any fields below this !!!
         */
        uint8_t                 buffer[0];      /* doubles as interrupt mask */
@@ -491,10 +491,8 @@ typedef struct {
 
 typedef struct {
        hv_vmbus_ring_buffer*   ring_buffer;
-       uint32_t                ring_size;      /* Include the shared header */
        struct mtx              ring_lock;
        uint32_t                ring_data_size; /* ring_size */
-       uint32_t                ring_data_start_offset;
 } hv_vmbus_ring_buffer_info;
 
 typedef void (*hv_vmbus_pfn_channel_callback)(void *context);

Modified: head/sys/dev/hyperv/vmbus/hv_ring_buffer.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/hv_ring_buffer.c  Wed Jul 13 06:30:33 2016        
(r302707)
+++ head/sys/dev/hyperv/vmbus/hv_ring_buffer.c  Wed Jul 13 06:39:04 2016        
(r302708)
@@ -286,7 +286,6 @@ hv_vmbus_ring_buffer_init(
        ring_info->ring_buffer->read_index =
            ring_info->ring_buffer->write_index = 0;
 
-       ring_info->ring_size = buffer_len;
        ring_info->ring_data_size = buffer_len - sizeof(hv_vmbus_ring_buffer);
 
        mtx_init(&ring_info->ring_lock, "vmbus ring buffer", NULL, MTX_SPIN);
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