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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-03-13 21:16:13 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-13 21:16:13 +0100
commit5d82720a7f41f0c877e026c7d17e3bf20ccdbae0 (patch)
tree47ec22f0bdf7b5eaa79eef17dbacedc29b1123c2 /include
parent3eb76c1ccde496c3c0bfda23d1c803e40b762ce6 (diff)
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ide: save the returned value of dma_map_sg
dma_map_sg could return a value different to 'nents' argument of dma_map_sg so the ide stack needs to save it for the later usage (e.g. for_each_sg). The ide stack also needs to save the original sg_nents value for pci_unmap_sg. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [bart: backport to Linus' tree] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ide.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h
index e0cedfe9fad4..25087aead657 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -797,6 +797,7 @@ typedef struct hwif_s {
struct scatterlist *sg_table;
int sg_max_nents; /* Maximum number of entries in it */
int sg_nents; /* Current number of entries in it */
+ int orig_sg_nents;
int sg_dma_direction; /* dma transfer direction */
/* data phase of the active command (currently only valid for PIO/DMA) */