diff options
| author |   Antoine Tenart <antoine.tenart@bootlin.com> | 2018-05-14 15:10:55 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2018-05-27 00:11:35 +0800 |
| commit | 6182480637d98100056883e8191b4f69c5313847 (patch) | |
| tree | 23609851ecaa641ffd61dac15a437fe97eac3acd /drivers/crypto | |
| parent | crypto: chtls - generic handling of data and hdr (diff) | |
| download | linux-dev-6182480637d98100056883e8191b4f69c5313847.tar.xz linux-dev-6182480637d98100056883e8191b4f69c5313847.zip | |
crypto: inside-secure - remove VLAs
This patch removes the use of VLAs to allocate requests on the stack, by
removing both SKCIPHER_REQUEST_ON_STACK and AHASH_REQUEST_ON_STACK. As
we still need to allocate requests on the stack to ease the creation of
invalidation requests a new, non-VLA, definition is used:
EIP197_REQUEST_ON_STACK.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 9 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_hash.c | 2 |
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index b470a849721f..afdd099b2c1a 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -28,6 +28,15 @@ #define EIP197_GFP_FLAGS(base) ((base).flags & CRYPTO_TFM_REQ_MAY_SLEEP ? \ GFP_KERNEL : GFP_ATOMIC) +/* Custom on-stack requests (for invalidation) */ +#define EIP197_SKCIPHER_REQ_SIZE sizeof(struct skcipher_request) + \ + sizeof(struct safexcel_cipher_req) +#define EIP197_AHASH_REQ_SIZE sizeof(struct ahash_request) + \ + sizeof(struct safexcel_ahash_req) +#define EIP197_REQUEST_ON_STACK(name, type, size) \ + char __##name##_desc[size] CRYPTO_MINALIGN_ATTR; \ + struct type##_request *name = (void *)__##name##_desc + /* Register base offsets */ #define EIP197_HIA_AIC(priv) ((priv)->base + (priv)->offsets.hia_aic) #define EIP197_HIA_AIC_G(priv) ((priv)->base + (priv)->offsets.hia_aic_g) diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index bafb60505fab..9a51da28fb62 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -433,7 +433,7 @@ static int safexcel_cipher_exit_inv(struct crypto_tfm *tfm) { struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm); struct safexcel_crypto_priv *priv = ctx->priv; - SKCIPHER_REQUEST_ON_STACK(req, __crypto_skcipher_cast(tfm)); + EIP197_REQUEST_ON_STACK(req, skcipher, EIP197_SKCIPHER_REQ_SIZE); struct safexcel_cipher_req *sreq = skcipher_request_ctx(req); struct safexcel_inv_result result = {}; int ring = ctx->base.ring; diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 317b9e480312..00d2cad0ff1c 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -480,7 +480,7 @@ static int safexcel_ahash_exit_inv(struct crypto_tfm *tfm) { struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(tfm); struct safexcel_crypto_priv *priv = ctx->priv; - AHASH_REQUEST_ON_STACK(req, __crypto_ahash_cast(tfm)); + EIP197_REQUEST_ON_STACK(req, ahash, EIP197_AHASH_REQ_SIZE); struct safexcel_ahash_req *rctx = ahash_request_ctx(req); struct safexcel_inv_result result = {}; int ring = ctx->base.ring; |