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| author | Marcelo Cerri <marcelo.cerri@canonical.com> | 2017-02-27 09:38:26 -0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-03-09 18:34:39 +0800 |
| commit | 25fe465280e3f2048e38757579b5913b5bf500b4 (patch) | |
| tree | a7b27cef68cf4f1642a55b4cbe6fa75bd7b020f8 /crypto/tgr192.c | |
| parent | cf197f2b42c64f6cb65596e3cc40af58610cadc8 (diff) | |
| download | linux-crypto-25fe465280e3f2048e38757579b5913b5bf500b4.tar.gz linux-crypto-25fe465280e3f2048e38757579b5913b5bf500b4.zip | |
crypto: ctr - Propagate NEED_FALLBACK bit
When requesting a fallback algorithm, we should propagate the
NEED_FALLBACK bit when search for the underlying algorithm.
This will prevents drivers from allocating unnecessary fallbacks that
are never called. For instance, currently the vmx-crypto driver will use
the following chain of calls when calling the fallback implementation:
p8_aes_ctr -> ctr(p8_aes) -> aes-generic
However p8_aes will always delegate its calls to aes-generic. With this
patch, p8_aes_ctr will be able to use ctr(aes-generic) directly as its
fallback. The same applies to aes_s390.
Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/tgr192.c')
0 files changed, 0 insertions, 0 deletions