The function ablkcipher_done_slow is pretty much identical to scatterwalk_copychunks except that it doesn't actually copy as the processing hasn't been completed yet.
This patch allows scatterwalk_copychunks to be used in this case by specifying out == 2. Signed-off-by: Herbert Xu <[email protected]> --- crypto/scatterwalk.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c index 03ca4ae..e124ce2 100644 --- a/crypto/scatterwalk.c +++ b/crypto/scatterwalk.c @@ -87,9 +87,11 @@ void scatterwalk_copychunks(void *buf, struct scatter_walk *walk, if (len_this_page > nbytes) len_this_page = nbytes; - vaddr = scatterwalk_map(walk); - memcpy_dir(buf, vaddr, len_this_page, out); - scatterwalk_unmap(vaddr); + if (out != 2) { + vaddr = scatterwalk_map(walk); + memcpy_dir(buf, vaddr, len_this_page, out); + scatterwalk_unmap(vaddr); + } scatterwalk_advance(walk, len_this_page); @@ -99,7 +101,7 @@ void scatterwalk_copychunks(void *buf, struct scatter_walk *walk, buf += len_this_page; nbytes -= len_this_page; - scatterwalk_pagedone(walk, out, 1); + scatterwalk_pagedone(walk, out & 1, 1); } } EXPORT_SYMBOL_GPL(scatterwalk_copychunks); -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
