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author | Marcelo Cerri <marcelo.cerri@canonical.com> | 2017-02-27 09:38:26 -0300 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-03-09 18:34:39 +0800 |
commit | d2c2a85cfe829f9d0736dba567edc86ba8524fb2 (patch) | |
tree | d6e708d6dca58c5660b67c458594fde53f35e059 /include/dt-bindings | |
parent | e6c2e65c70a6f606ea764f301e4024c85e0cd7a8 (diff) | |
download | linux-d2c2a85cfe829f9d0736dba567edc86ba8524fb2.tar.gz linux-d2c2a85cfe829f9d0736dba567edc86ba8524fb2.tar.bz2 linux-d2c2a85cfe829f9d0736dba567edc86ba8524fb2.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 'include/dt-bindings')
0 files changed, 0 insertions, 0 deletions