libcrc32c: Move implementation to crypto crc32c

This patch swaps the role of libcrc32c and crc32c.  Previously
the implementation was in libcrc32c and crc32c was a wrapper.
Now the code is in crc32c and libcrc32c just calls the crypto
layer.

The reason for the change is to tap into the algorithm selection
capability of the crypto API so that optimised implementations
such as the one utilising Intel's CRC32C instruction can be
used where available.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Kconfig b/lib/Kconfig
index 85cf7ea978aa..ce303f13ed92 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -64,6 +64,7 @@ config CRC7
 
 config LIBCRC32C
         tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check"
+        select CRYPTO_CRC32C
         help
           This option is provided for the case where no in-kernel-tree
           modules require CRC32c functions, but a module built outside the