diff options
Diffstat (limited to 'arch/arm64/crypto/aes-glue.c')
| -rw-r--r-- | arch/arm64/crypto/aes-glue.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c index 843fb27c4961..55d6d4838708 100644 --- a/arch/arm64/crypto/aes-glue.c +++ b/arch/arm64/crypto/aes-glue.c @@ -9,6 +9,7 @@ #include <asm/hwcap.h> #include <asm/simd.h> #include <crypto/aes.h> +#include <crypto/ctr.h> #include <crypto/internal/hash.h> #include <crypto/internal/simd.h> #include <crypto/internal/skcipher.h> @@ -18,7 +19,6 @@ #include <crypto/xts.h> #include "aes-ce-setkey.h" -#include "aes-ctr-fallback.h" #ifdef USE_V8_CRYPTO_EXTENSIONS #define MODE "ce" @@ -401,13 +401,25 @@ static int ctr_encrypt(struct skcipher_request *req) return err; } -static int ctr_encrypt_sync(struct skcipher_request *req) +static void ctr_encrypt_one(struct crypto_skcipher *tfm, const u8 *src, u8 *dst) { - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm); + const struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm); + unsigned long flags; + + /* + * Temporarily disable interrupts to avoid races where + * cachelines are evicted when the CPU is interrupted + * to do something else. + */ + local_irq_save(flags); + aes_encrypt(ctx, dst, src); + local_irq_restore(flags); +} +static int ctr_encrypt_sync(struct skcipher_request *req) +{ if (!crypto_simd_usable()) - return aes_ctr_encrypt_fallback(ctx, req); + return crypto_ctr_encrypt_walk(req, ctr_encrypt_one); return ctr_encrypt(req); } |