diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dmaengine.c | 20 | ||||
| -rw-r--r-- | drivers/dma/ioatdma.c | 10 | ||||
| -rw-r--r-- | drivers/dma/ioatdma_registers.h | 2 | ||||
| -rw-r--r-- | drivers/dma/iovlock.c | 2 |
4 files changed, 20 insertions, 14 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 5829143558e1..15278044295c 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -166,8 +166,8 @@ static struct dma_chan *dma_client_chan_alloc(struct dma_client *client) } /** - * dma_client_chan_free - release a DMA channel - * @chan: &dma_chan + * dma_chan_cleanup - release a DMA channel's resources + * @kref: kernel reference structure that contains the DMA channel device */ void dma_chan_cleanup(struct kref *kref) { @@ -199,7 +199,7 @@ static void dma_client_chan_free(struct dma_chan *chan) * dma_chans_rebalance - reallocate channels to clients * * When the number of DMA channel in the system changes, - * channels need to be rebalanced among clients + * channels need to be rebalanced among clients. */ static void dma_chans_rebalance(void) { @@ -264,7 +264,7 @@ struct dma_client *dma_async_client_register(dma_event_callback event_callback) /** * dma_async_client_unregister - unregister a client and free the &dma_client - * @client: + * @client: &dma_client to free * * Force frees any allocated DMA channels, frees the &dma_client memory */ @@ -306,7 +306,7 @@ void dma_async_client_chan_request(struct dma_client *client, } /** - * dma_async_device_register - + * dma_async_device_register - registers DMA devices found * @device: &dma_device */ int dma_async_device_register(struct dma_device *device) @@ -348,8 +348,8 @@ int dma_async_device_register(struct dma_device *device) } /** - * dma_async_device_unregister - - * @device: &dma_device + * dma_async_device_cleanup - function called when all references are released + * @kref: kernel reference object */ static void dma_async_device_cleanup(struct kref *kref) { @@ -359,7 +359,11 @@ static void dma_async_device_cleanup(struct kref *kref) complete(&device->done); } -void dma_async_device_unregister(struct dma_device* device) +/** + * dma_async_device_unregister - unregisters DMA devices + * @device: &dma_device + */ +void dma_async_device_unregister(struct dma_device *device) { struct dma_chan *chan; unsigned long flags; diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c index ecad8f65d2d4..78bf46d917b7 100644 --- a/drivers/dma/ioatdma.c +++ b/drivers/dma/ioatdma.c @@ -217,7 +217,7 @@ static void ioat_dma_free_chan_resources(struct dma_chan *chan) /** * do_ioat_dma_memcpy - actual function that initiates a IOAT DMA transaction - * @chan: IOAT DMA channel handle + * @ioat_chan: IOAT DMA channel handle * @dest: DMA destination address * @src: DMA source address * @len: transaction length in bytes @@ -383,7 +383,7 @@ static dma_cookie_t ioat_dma_memcpy_buf_to_pg(struct dma_chan *chan, * @dest_off: offset into that page * @src_pg: pointer to the page to copy from * @src_off: offset into that page - * @len: transaction length in bytes. This is guaranteed to not make a copy + * @len: transaction length in bytes. This is guaranteed not to make a copy * across a page boundary. */ @@ -407,7 +407,7 @@ static dma_cookie_t ioat_dma_memcpy_pg_to_pg(struct dma_chan *chan, } /** - * ioat_dma_memcpy_issue_pending - push potentially unrecognoized appended descriptors to hw + * ioat_dma_memcpy_issue_pending - push potentially unrecognized appended descriptors to hw * @chan: DMA channel handle */ @@ -510,6 +510,8 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *chan) * ioat_dma_is_complete - poll the status of a IOAT DMA transaction * @chan: IOAT DMA channel handle * @cookie: DMA transaction identifier + * @done: if not %NULL, updated with last completed transaction + * @used: if not %NULL, updated with last used transaction */ static enum dma_status ioat_dma_is_complete(struct dma_chan *chan, @@ -826,7 +828,7 @@ static int __init ioat_init_module(void) /* if forced, worst case is that rmmod hangs */ __unsafe(THIS_MODULE); - pci_module_init(&ioat_pci_drv); + return pci_module_init(&ioat_pci_drv); } module_init(ioat_init_module); diff --git a/drivers/dma/ioatdma_registers.h b/drivers/dma/ioatdma_registers.h index 41a21ab2b000..a30c7349075a 100644 --- a/drivers/dma/ioatdma_registers.h +++ b/drivers/dma/ioatdma_registers.h @@ -76,7 +76,7 @@ #define IOAT_CHANSTS_OFFSET 0x04 /* 64-bit Channel Status Register */ #define IOAT_CHANSTS_OFFSET_LOW 0x04 #define IOAT_CHANSTS_OFFSET_HIGH 0x08 -#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR 0xFFFFFFFFFFFFFFC0 +#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR 0xFFFFFFFFFFFFFFC0UL #define IOAT_CHANSTS_SOFT_ERR 0x0000000000000010 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS 0x0000000000000007 #define IOAT_CHANSTS_DMA_TRANSFER_STATUS_ACTIVE 0x0 diff --git a/drivers/dma/iovlock.c b/drivers/dma/iovlock.c index 5ed327e453a2..d637555a833b 100644 --- a/drivers/dma/iovlock.c +++ b/drivers/dma/iovlock.c @@ -31,7 +31,7 @@ #include <asm/io.h> #include <asm/uaccess.h> -int num_pages_spanned(struct iovec *iov) +static int num_pages_spanned(struct iovec *iov) { return ((PAGE_ALIGN((unsigned long)iov->iov_base + iov->iov_len) - |