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| author |   Vakul Garg <vakul.garg@nxp.com> | 2018-09-26 16:22:08 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-29 11:41:28 -0700 |
| commit | 80ece6a03aaf3f3215475826bdd2bb9f326bccfd (patch) | |
| tree | ce32bc34ac083fcfa9a64ad3db0e497b34319467 /include/net/tls.h | |
| parent | Merge branch 'tipc-next' (diff) | |
| download | linux-dev-80ece6a03aaf3f3215475826bdd2bb9f326bccfd.tar.xz linux-dev-80ece6a03aaf3f3215475826bdd2bb9f326bccfd.zip | |
tls: Remove redundant vars from tls record structure
Structure 'tls_rec' contains sg_aead_in and sg_aead_out which point
to a aad_space and then chain scatterlists sg_plaintext_data,
sg_encrypted_data respectively. Rather than using chained scatterlists
for plaintext and encrypted data in aead_req, it is efficient to store
aad_space in sg_encrypted_data and sg_plaintext_data itself in the
first index and get rid of sg_aead_in, sg_aead_in and further chaining.
This requires increasing size of sg_encrypted_data & sg_plaintext_data
arrarys by 1 to accommodate entry for aad_space. The code which uses
sg_encrypted_data and sg_plaintext_data has been modified to skip first
index as it points to aad_space.
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tls.h')
| -rw-r--r-- | include/net/tls.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/net/tls.h b/include/net/tls.h index 1615fb5ea114..262420cdad10 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -101,13 +101,11 @@ struct tls_rec { struct list_head list; int tx_ready; int tx_flags; - struct scatterlist sg_plaintext_data[MAX_SKB_FRAGS]; - struct scatterlist sg_encrypted_data[MAX_SKB_FRAGS]; /* AAD | sg_plaintext_data | sg_tag */ - struct scatterlist sg_aead_in[2]; + struct scatterlist sg_plaintext_data[MAX_SKB_FRAGS + 1]; /* AAD | sg_encrypted_data (data contain overhead for hdr&iv&tag) */ - struct scatterlist sg_aead_out[2]; + struct scatterlist sg_encrypted_data[MAX_SKB_FRAGS + 1]; unsigned int sg_plaintext_size; unsigned int sg_encrypted_size; |