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| author | Shannon Nelson <shannon.nelson@intel.com> | 2007-07-26 00:05:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-31 02:28:03 -0700 |
| commit | 342ff7b24f42d01b27d884c699855c713d720fcb (patch) | |
| tree | 6b24a7d1ff21dbb864948e4b1a29a05b62c29fa1 /drivers/dma | |
| parent | 94571065757a4f2619c48ab4e36cafdc635028ce (diff) | |
| download | linux-342ff7b24f42d01b27d884c699855c713d720fcb.tar.gz linux-342ff7b24f42d01b27d884c699855c713d720fcb.tar.bz2 linux-342ff7b24f42d01b27d884c699855c713d720fcb.zip | |
[NET_DMA]: remove unused dma_memcpy_to_kernel_iovec
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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/iovlock.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/drivers/dma/iovlock.c b/drivers/dma/iovlock.c index d637555a833b..e763d723e4cf 100644 --- a/drivers/dma/iovlock.c +++ b/drivers/dma/iovlock.c @@ -143,29 +143,6 @@ void dma_unpin_iovec_pages(struct dma_pinned_list *pinned_list) kfree(pinned_list); } -static dma_cookie_t dma_memcpy_to_kernel_iovec(struct dma_chan *chan, struct - iovec *iov, unsigned char *kdata, size_t len) -{ - dma_cookie_t dma_cookie = 0; - - while (len > 0) { - if (iov->iov_len) { - int copy = min_t(unsigned int, iov->iov_len, len); - dma_cookie = dma_async_memcpy_buf_to_buf( - chan, - iov->iov_base, - kdata, - copy); - kdata += copy; - len -= copy; - iov->iov_len -= copy; - iov->iov_base += copy; - } - iov++; - } - - return dma_cookie; -} /* * We have already pinned down the pages we will be using in the iovecs. @@ -187,10 +164,6 @@ dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov, if (!chan) return memcpy_toiovec(iov, kdata, len); - /* -> kernel copies (e.g. smbfs) */ - if (!pinned_list) - return dma_memcpy_to_kernel_iovec(chan, iov, kdata, len); - iovec_idx = 0; while (iovec_idx < pinned_list->nr_iovecs) { struct dma_page_list *page_list; |