diff options
| author | Stephen Hemminger <stephen@networkplumber.org> | 2017-02-11 23:02:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-14 10:20:35 -0800 |
| commit | e4165a0fad0963bf8b4a59f54d3360ccb6a6d1ea (patch) | |
| tree | fb91d8f72f6c01e2779e2b0892202bade31907fa /drivers/hv/ring_buffer.c | |
| parent | 6e47dd3e2938f41d75045bbcb64aa9df3a463b2a (diff) | |
| download | linux-e4165a0fad0963bf8b4a59f54d3360ccb6a6d1ea.tar.bz2 | |
vmbus: constify parameters where possible
Functions that just query state of ring buffer can have parameters
marked const.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/ring_buffer.c')
| -rw-r--r-- | drivers/hv/ring_buffer.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c index 75c9eefd55b5..490e9ea098e6 100644 --- a/drivers/hv/ring_buffer.c +++ b/drivers/hv/ring_buffer.c @@ -96,11 +96,9 @@ hv_set_next_write_location(struct hv_ring_buffer_info *ring_info, /* Get the next read location for the specified ring buffer. */ static inline u32 -hv_get_next_read_location(struct hv_ring_buffer_info *ring_info) +hv_get_next_read_location(const struct hv_ring_buffer_info *ring_info) { - u32 next = ring_info->ring_buffer->read_index; - - return next; + return ring_info->ring_buffer->read_index; } /* @@ -108,8 +106,8 @@ hv_get_next_read_location(struct hv_ring_buffer_info *ring_info) * This allows the caller to skip. */ static inline u32 -hv_get_next_readlocation_withoffset(struct hv_ring_buffer_info *ring_info, - u32 offset) +hv_get_next_readlocation_withoffset(const struct hv_ring_buffer_info *ring_info, + u32 offset) { u32 next = ring_info->ring_buffer->read_index; @@ -130,7 +128,7 @@ hv_set_next_read_location(struct hv_ring_buffer_info *ring_info, /* Get the size of the ring buffer. */ static inline u32 -hv_get_ring_buffersize(struct hv_ring_buffer_info *ring_info) +hv_get_ring_buffersize(const struct hv_ring_buffer_info *ring_info) { return ring_info->ring_datasize; } @@ -147,7 +145,7 @@ hv_get_ring_bufferindices(struct hv_ring_buffer_info *ring_info) * Assume there is enough room. Handles wrap-around in src case only!! */ static u32 hv_copyfrom_ringbuffer( - struct hv_ring_buffer_info *ring_info, + const struct hv_ring_buffer_info *ring_info, void *dest, u32 destlen, u32 start_read_offset) @@ -171,7 +169,7 @@ static u32 hv_copyfrom_ringbuffer( static u32 hv_copyto_ringbuffer( struct hv_ring_buffer_info *ring_info, u32 start_write_offset, - void *src, + const void *src, u32 srclen) { void *ring_buffer = hv_get_ring_buffer(ring_info); @@ -186,8 +184,8 @@ static u32 hv_copyto_ringbuffer( } /* Get various debug metrics for the specified ring buffer. */ -void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info, - struct hv_ring_buffer_debug_info *debug_info) +void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, + struct hv_ring_buffer_debug_info *debug_info) { u32 bytes_avail_towrite; u32 bytes_avail_toread; @@ -264,7 +262,7 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info) /* Write to the ring buffer. */ int hv_ringbuffer_write(struct vmbus_channel *channel, - struct kvec *kv_list, u32 kv_count) + const struct kvec *kv_list, u32 kv_count) { int i = 0; u32 bytes_avail_towrite; |