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* [2/4] I/OAT: fix dma_pin_iovec_pages() error handlingMaciej Sosnowski2008-11-101-11/+6
| | | | | | | | | | | | | Error handling needs to be modified in dma_pin_iovec_pages(). It should return NULL instead of ERR_PTR (pinned_list is checked for NULL in tcp_recvmsg() to determine if iovec pages have been successfully pinned down). In case of error for the first iovec, local_list->nr_iovecs needs to be initialized. Cc: <stable@kernel.org> Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_DMA]: remove unused dma_memcpy_to_kernel_iovecShannon Nelson2007-07-311-27/+0
| | | | | | | | | Al Viro pointed out that dma_memcpy_to_kernel_iovec() really was unreachable and thus unused. The code originally was there to support in-kernel dma needs, but since it remains unused, we'll pull it out. Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IOAT]: drivers/dma/iovlock.c: make num_pages_spanned() staticAdrian Bunk2006-07-031-1/+1
| | | | | | | | This patch makes the needlessly global num_pages_spanned() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [I/OAT]: Utility functions for offloading sk_buff to iovec copiesChris Leech2006-06-171-0/+301
Provides for pinning user space pages in memory, copying to iovecs, and copying from sk_buffs including fragmented and chained sk_buffs. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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