1 files changed, 43 insertions, 44 deletions

diff --git a/arch/arm64/crypto/aes-ce-glue.c b/arch/arm64/crypto/aes-ce-glue.c
index 00b8749013c5..a4dad370991d 100644
--- a/arch/arm64/crypto/aes-ce-glue.c
+++ b/arch/arm64/crypto/aes-ce-glue.c
@@ -52,9 +52,8 @@ static void aes_cipher_encrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
 		return;
 	}
 
-	kernel_neon_begin();
-	__aes_ce_encrypt(ctx->key_enc, dst, src, num_rounds(ctx));
-	kernel_neon_end();
+	scoped_ksimd()
+		__aes_ce_encrypt(ctx->key_enc, dst, src, num_rounds(ctx));
 }
 
 static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
@@ -66,9 +65,8 @@ static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
 		return;
 	}
 
-	kernel_neon_begin();
-	__aes_ce_decrypt(ctx->key_dec, dst, src, num_rounds(ctx));
-	kernel_neon_end();
+	scoped_ksimd()
+		__aes_ce_decrypt(ctx->key_dec, dst, src, num_rounds(ctx));
 }
 
 int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
@@ -94,47 +92,48 @@ int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
 	for (i = 0; i < kwords; i++)
 		ctx->key_enc[i] = get_unaligned_le32(in_key + i * sizeof(u32));
 
-	kernel_neon_begin();
-	for (i = 0; i < sizeof(rcon); i++) {
-		u32 *rki = ctx->key_enc + (i * kwords);
-		u32 *rko = rki + kwords;
-
-		rko[0] = ror32(__aes_ce_sub(rki[kwords - 1]), 8) ^ rcon[i] ^ rki[0];
-		rko[1] = rko[0] ^ rki[1];
-		rko[2] = rko[1] ^ rki[2];
-		rko[3] = rko[2] ^ rki[3];
-
-		if (key_len == AES_KEYSIZE_192) {
-			if (i >= 7)
-				break;
-			rko[4] = rko[3] ^ rki[4];
-			rko[5] = rko[4] ^ rki[5];
-		} else if (key_len == AES_KEYSIZE_256) {
-			if (i >= 6)
-				break;
-			rko[4] = __aes_ce_sub(rko[3]) ^ rki[4];
-			rko[5] = rko[4] ^ rki[5];
-			rko[6] = rko[5] ^ rki[6];
-			rko[7] = rko[6] ^ rki[7];
+	scoped_ksimd() {
+		for (i = 0; i < sizeof(rcon); i++) {
+			u32 *rki = ctx->key_enc + (i * kwords);
+			u32 *rko = rki + kwords;
+
+			rko[0] = ror32(__aes_ce_sub(rki[kwords - 1]), 8) ^
+				 rcon[i] ^ rki[0];
+			rko[1] = rko[0] ^ rki[1];
+			rko[2] = rko[1] ^ rki[2];
+			rko[3] = rko[2] ^ rki[3];
+
+			if (key_len == AES_KEYSIZE_192) {
+				if (i >= 7)
+					break;
+				rko[4] = rko[3] ^ rki[4];
+				rko[5] = rko[4] ^ rki[5];
+			} else if (key_len == AES_KEYSIZE_256) {
+				if (i >= 6)
+					break;
+				rko[4] = __aes_ce_sub(rko[3]) ^ rki[4];
+				rko[5] = rko[4] ^ rki[5];
+				rko[6] = rko[5] ^ rki[6];
+				rko[7] = rko[6] ^ rki[7];
+			}
 		}
-	}
 
-	/*
-	 * Generate the decryption keys for the Equivalent Inverse Cipher.
-	 * This involves reversing the order of the round keys, and applying
-	 * the Inverse Mix Columns transformation on all but the first and
-	 * the last one.
-	 */
-	key_enc = (struct aes_block *)ctx->key_enc;
-	key_dec = (struct aes_block *)ctx->key_dec;
-	j = num_rounds(ctx);
-
-	key_dec[0] = key_enc[j];
-	for (i = 1, j--; j > 0; i++, j--)
-		__aes_ce_invert(key_dec + i, key_enc + j);
-	key_dec[i] = key_enc[0];
+		/*
+		 * Generate the decryption keys for the Equivalent Inverse
+		 * Cipher.  This involves reversing the order of the round
+		 * keys, and applying the Inverse Mix Columns transformation on
+		 * all but the first and the last one.
+		 */
+		key_enc = (struct aes_block *)ctx->key_enc;
+		key_dec = (struct aes_block *)ctx->key_dec;
+		j = num_rounds(ctx);
+
+		key_dec[0] = key_enc[j];
+		for (i = 1, j--; j > 0; i++, j--)
+			__aes_ce_invert(key_dec + i, key_enc + j);
+		key_dec[i] = key_enc[0];
+	}
 
-	kernel_neon_end();
 	return 0;
 }
 EXPORT_SYMBOL(ce_aes_expandkey);