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staging: comedi: mite: don't export internal functions

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The functions that get the number of bytes written to and read from
memory are only used internally by the mite driver when syncing the
dma channel. Make them static and remove the exports.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2016-04-20 10:36:32 -07:00 committed by Greg Kroah-Hartman
parent a2a9d1b4c5
commit 0d9bfc2412
2 changed files with 4 additions and 12 deletions
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12
drivers/staging/comedi/drivers/mite.c
View File

@ -488,44 +488,40 @@ u32 mite_bytes_in_transit(struct mite_channel *mite_chan)
EXPORT_SYMBOL_GPL(mite_bytes_in_transit);
/* returns lower bound for number of bytes transferred from device to memory */
u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan)
static u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan)
{
u32 device_byte_count;
device_byte_count = mite_device_bytes_transferred(mite_chan);
return device_byte_count - mite_bytes_in_transit(mite_chan);
}
EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_lb);
/* returns upper bound for number of bytes transferred from device to memory */
u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan)
static u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan)
{
u32 in_transit_count;
in_transit_count = mite_bytes_in_transit(mite_chan);
return mite_device_bytes_transferred(mite_chan) - in_transit_count;
}
EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_ub);
/* returns lower bound for number of bytes read from memory to device */
u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan)
static u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan)
{
u32 device_byte_count;
device_byte_count = mite_device_bytes_transferred(mite_chan);
return device_byte_count + mite_bytes_in_transit(mite_chan);
}
EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_lb);
/* returns upper bound for number of bytes read from memory to device */
u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan)
static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan)
{
u32 in_transit_count;
in_transit_count = mite_bytes_in_transit(mite_chan);
return mite_device_bytes_transferred(mite_chan) + in_transit_count;
}
EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub);
void mite_dma_disarm(struct mite_channel *mite_chan)
{

4
drivers/staging/comedi/drivers/mite.h
View File

@ -98,10 +98,6 @@ int mite_sync_input_dma(struct mite_channel *mite_chan,
struct comedi_subdevice *s);
int mite_sync_output_dma(struct mite_channel *mite_chan,
struct comedi_subdevice *s);
u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan);
u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan);
u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan);
u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan);
u32 mite_bytes_in_transit(struct mite_channel *mite_chan);
unsigned int mite_get_status(struct mite_channel *mite_chan);
int mite_done(struct mite_channel *mite_chan);