crypto: sa2ul - Reduce stack usage

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This patch reduces the stack usage in sa2ul:

1. Move the exported sha state into sa_prepare_iopads so that it
can occupy the same space as the k_pad buffer.

2. Use one buffer for ipad/opad in sa_prepare_iopads.

3. Remove ipad/opad buffer from sa_set_sc_auth.

4. Use async skcipher fallback and remove on-stack request from
sa_cipher_run.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: d2c8ac187f ("crypto: sa2ul - Add AEAD algorithm support")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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This commit is contained in:

Herbert Xu 2020-10-15 14:31:53 +11:00

parent 633e507fba

commit ad0bb4e4d2

2 changed files with 63 additions and 61 deletions

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120

drivers/crypto/sa2ul.c

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6

drivers/crypto/sa2ul.h

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