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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-20 20:01:16 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-20 20:01:16 -0700
commit34641a58a227e498adf471ab016bd054cc399d7e (patch)
treeda1e0af965d06d0c6e13c546ac01f6a54a904d86 /drivers/ieee1394/dma.c
parent2eec0e0842ef747027eb9181d5f50d7157184d57 (diff)
parent7136b8073f0123918e3e50269ae021bbb09e1a81 (diff)
downloadop-kernel-dev-34641a58a227e498adf471ab016bd054cc399d7e.zip
op-kernel-dev-34641a58a227e498adf471ab016bd054cc399d7e.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bcollins/linux1394-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bcollins/linux1394-2.6: (28 commits) eth1394: replace __constant_htons by htons ieee1394: adjust code formatting in highlevel.c ieee1394: hl_irqs_lock is taken in hardware interrupt context ieee1394_core: switch to kthread API ieee1394: sbp2: Kconfig fix ieee1394: add preprocessor constant for invalid csr address sbp2: fix deregistration of status fifo address space [PATCH] eth1394: endian fixes Fix broken suspend/resume in ohci1394 sbp2: use __attribute__((packed)) for on-the-wire structures sbp2: provide helptext for CONFIG_IEEE1394_SBP2_PHYS_DMA and mark it experimental Update feature removal of obsolete raw1394 ISO requests. sbp2: fix S800 transfers if phys_dma is off sbp2: remove ohci1394 specific constant ohci1394: make phys_dma parameter read-only ohci1394: set address range properties ieee1394: extend lowlevel API for address range properties sbp2: log number of supported concurrent logins sbp2: remove manipulation of inquiry response ieee1394: save RAM by using a single tlabel for broadcast transactions ...
Diffstat (limited to 'drivers/ieee1394/dma.c')
-rw-r--r--drivers/ieee1394/dma.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c
index 9fb2769..ca5167d 100644
--- a/drivers/ieee1394/dma.c
+++ b/drivers/ieee1394/dma.c
@@ -145,12 +145,12 @@ void dma_region_free(struct dma_region *dma)
/* find the scatterlist index and remaining offset corresponding to a
given offset from the beginning of the buffer */
static inline int dma_region_find(struct dma_region *dma, unsigned long offset,
- unsigned long *rem)
+ unsigned int start, unsigned long *rem)
{
int i;
unsigned long off = offset;
- for (i = 0; i < dma->n_dma_pages; i++) {
+ for (i = start; i < dma->n_dma_pages; i++) {
if (off < sg_dma_len(&dma->sglist[i])) {
*rem = off;
break;
@@ -170,7 +170,7 @@ dma_addr_t dma_region_offset_to_bus(struct dma_region * dma,
unsigned long rem = 0;
struct scatterlist *sg =
- &dma->sglist[dma_region_find(dma, offset, &rem)];
+ &dma->sglist[dma_region_find(dma, offset, 0, &rem)];
return sg_dma_address(sg) + rem;
}
@@ -178,13 +178,13 @@ void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
unsigned long len)
{
int first, last;
- unsigned long rem;
+ unsigned long rem = 0;
if (!len)
len = 1;
- first = dma_region_find(dma, offset, &rem);
- last = dma_region_find(dma, offset + len - 1, &rem);
+ first = dma_region_find(dma, offset, 0, &rem);
+ last = dma_region_find(dma, rem + len - 1, first, &rem);
pci_dma_sync_sg_for_cpu(dma->dev, &dma->sglist[first], last - first + 1,
dma->direction);
@@ -194,13 +194,13 @@ void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
unsigned long len)
{
int first, last;
- unsigned long rem;
+ unsigned long rem = 0;
if (!len)
len = 1;
- first = dma_region_find(dma, offset, &rem);
- last = dma_region_find(dma, offset + len - 1, &rem);
+ first = dma_region_find(dma, offset, 0, &rem);
+ last = dma_region_find(dma, rem + len - 1, first, &rem);
pci_dma_sync_sg_for_device(dma->dev, &dma->sglist[first],
last - first + 1, dma->direction);
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