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    Subject[PATCH AUTOSEL for 4.14 036/135] crypto: tcrypt - fix buffer lengths in test_aead_speed()
    Date
    From: Robert Baronescu <robert.baronescu@nxp.com>

    [ Upstream commit 7aacbfcb331ceff3ac43096d563a1f93ed46e35e ]

    Fix the way the length of the buffers used for
    encryption / decryption are computed.
    For e.g. in case of encryption, input buffer does not contain
    an authentication tag.

    Signed-off-by: Robert Baronescu <robert.baronescu@nxp.com>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
    ---
    crypto/tcrypt.c | 6 ++++--
    1 file changed, 4 insertions(+), 2 deletions(-)

    diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
    index 0022a18d36ee..f5f58a6eee5d 100644
    --- a/crypto/tcrypt.c
    +++ b/crypto/tcrypt.c
    @@ -340,7 +340,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
    }

    sg_init_aead(sg, xbuf,
    - *b_size + (enc ? authsize : 0));
    + *b_size + (enc ? 0 : authsize));

    sg_init_aead(sgout, xoutbuf,
    *b_size + (enc ? authsize : 0));
    @@ -348,7 +348,9 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
    sg_set_buf(&sg[0], assoc, aad_size);
    sg_set_buf(&sgout[0], assoc, aad_size);

    - aead_request_set_crypt(req, sg, sgout, *b_size, iv);
    + aead_request_set_crypt(req, sg, sgout,
    + *b_size + (enc ? 0 : authsize),
    + iv);
    aead_request_set_ad(req, aad_size);

    if (secs)
    --
    2.11.0
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