Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ntb: migrate to dma_map_phys instead of map_page
After introduction of dma_map_phys(), there is no need to convert
from physical address to struct page in order to map page. So let's
use it directly.
Signed-off-by: Chu Guangqing <chuguangqing@inspur.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
authored by
Chu Guangqing
and committed by
Jon Mason
c722e055
322617a0
+6
-6
+6
-6
drivers/ntb/ntb_transport.c
+6
-6
drivers/ntb/ntb_transport.c
···
1589
1589
goto err;
1590
1590
1591
1591
unmap->len = len;
1592
-
unmap->addr[0] = dma_map_page(device->dev, virt_to_page(offset),
1593
-
pay_off, len, DMA_TO_DEVICE);
1592
+
unmap->addr[0] = dma_map_phys(device->dev, virt_to_phys(offset),
1593
+
len, DMA_TO_DEVICE, 0);
1594
1594
if (dma_mapping_error(device->dev, unmap->addr[0]))
1595
1595
goto err_get_unmap;
1596
1596
1597
1597
unmap->to_cnt = 1;
1598
1598
1599
-
unmap->addr[1] = dma_map_page(device->dev, virt_to_page(buf),
1600
-
buff_off, len, DMA_FROM_DEVICE);
1599
+
unmap->addr[1] = dma_map_phys(device->dev, virt_to_phys(buf),
1600
+
len, DMA_FROM_DEVICE, 0);
1601
1601
if (dma_mapping_error(device->dev, unmap->addr[1]))
1602
1602
goto err_get_unmap;
1603
1603
···
1923
1923
goto err;
1924
1924
1925
1925
unmap->len = len;
1926
-
unmap->addr[0] = dma_map_page(device->dev, virt_to_page(buf),
1927
-
buff_off, len, DMA_TO_DEVICE);
1926
+
unmap->addr[0] = dma_map_phys(device->dev, virt_to_phys(buf),
1927
+
len, DMA_TO_DEVICE, 0);
1928
1928
if (dma_mapping_error(device->dev, unmap->addr[0]))
1929
1929
goto err_get_unmap;
1930
1930