Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - Kconfig problem that prevented mxc-rnga from being enabled

   - bogus key sizes in qat aes-xts

   - buggy aes-xts code in vmx"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: vmx - fix null dereference in p8_aes_xts_crypt
  crypto: qat - fix aes-xts key sizes
  hwrng: mxc-rnga - Fix Kconfig dependency

Author: torvalds

drivers/char/hw_random/Kconfig

@@ -244,7 +244,7 @@ config HW_RANDOM_TX4939
 
 config HW_RANDOM_MXC_RNGA
 	tristate "Freescale i.MX RNGA Random Number Generator"
-	depends on ARCH_HAS_RNGA
+	depends on SOC_IMX31
 	default HW_RANDOM
 	---help---
 	  This driver provides kernel-side support for the Random Number

drivers/crypto/qat/qat_common/qat_algs.c

@@ -1260,8 +1260,8 @@ static struct crypto_alg qat_algs[] = { {
 			.setkey = qat_alg_ablkcipher_xts_setkey,
 			.decrypt = qat_alg_ablkcipher_decrypt,
 			.encrypt = qat_alg_ablkcipher_encrypt,
-			.min_keysize = AES_MIN_KEY_SIZE,
-			.max_keysize = AES_MAX_KEY_SIZE,
+			.min_keysize = 2 * AES_MIN_KEY_SIZE,
+			.max_keysize = 2 * AES_MAX_KEY_SIZE,
 			.ivsize = AES_BLOCK_SIZE,
 		},
 	},

drivers/crypto/vmx/aes_xts.c

@@ -129,8 +129,8 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc,
 
 		blkcipher_walk_init(&walk, dst, src, nbytes);
 
-		iv = (u8 *)walk.iv;
 		ret = blkcipher_walk_virt(desc, &walk);
+		iv = walk.iv;
 		memset(tweak, 0, AES_BLOCK_SIZE);
 		aes_p8_encrypt(iv, tweak, &ctx->tweak_key);