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authorHerbert Xu <herbert@gondor.apana.org.au>2020-10-15 14:31:53 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2020-10-30 17:35:02 +1100
commitad0bb4e4d226e76950531cb4260402bbbb8997b5 (patch)
tree6bba4dce1f672cf6d96a9d6f2194045a0b84dad1 /drivers/crypto/sa2ul.h
parent633e507fba02d62ed573a8dfb430fc3b881b23d6 (diff)
crypto: sa2ul - Reduce stack usage
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: d2c8ac187fc9 ("crypto: sa2ul - Add AEAD algorithm support") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/sa2ul.h')
-rw-r--r--drivers/crypto/sa2ul.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/crypto/sa2ul.h b/drivers/crypto/sa2ul.h
index 7f7e3fe60d11..bb40df3876e5 100644
--- a/drivers/crypto/sa2ul.h
+++ b/drivers/crypto/sa2ul.h
@@ -12,10 +12,8 @@
#ifndef _K3_SA2UL_
#define _K3_SA2UL_
-#include <linux/interrupt.h>
-#include <linux/skbuff.h>
-#include <linux/hw_random.h>
#include <crypto/aes.h>
+#include <crypto/sha.h>
#define SA_ENGINE_ENABLE_CONTROL 0x1000
@@ -311,7 +309,7 @@ struct sa_tfm_ctx {
struct crypto_shash *shash;
/* for fallback */
union {
- struct crypto_sync_skcipher *skcipher;
+ struct crypto_skcipher *skcipher;
struct crypto_ahash *ahash;
struct crypto_aead *aead;
} fallback;