Subject: Re: linux-next: build failure after merge of the crypto tree

From: Herbert Xu <[email-masked]>
Date: Tue, 29 Nov 2016 15:08:40 +0800

On Tue, Nov 29, 2016 at 11:55:29AM +1100, Stephen Rothwell wrote:
> Hi Herbert,
> 
> After merging the crypto tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> 
> ERROR: "simd_skcipher_free" [arch/arm/crypto/aes-arm-ce.ko] undefined!
> ERROR: "simd_skcipher_create_compat" [arch/arm/crypto/aes-arm-ce.ko] undefined!
> ERROR: "simd_skcipher_free" [arch/arm/crypto/aes-arm-bs.ko] undefined!
> ERROR: "simd_skcipher_create_compat" [arch/arm/crypto/aes-arm-bs.ko] undefined!
> 
> Caused by commits
> 
>   da40e7a4ba4d ("crypto: aes-ce - Convert to skcipher")
>   211f41af534a ("crypto: aesbs - Convert to skcipher")
> 
> Missing dependencies?
> 
> I have used the crypto tree from next-20161128 for today.

Indeed.  This patch should fix the problem.

---8<---
Subject: crypto: arm/aes - Select SIMD in Kconfig

The skcipher conversion for ARM missed the select on CRYPTO_SIMD,
causing build failures if SIMD was not otherwise enabled.

Fixes: da40e7a4ba4d ("crypto: aes-ce - Convert to skcipher")
Fixes: 211f41af534a ("crypto: aesbs - Convert to skcipher")
Reported-by: Stephen Rothwell <[email-masked]>
Signed-off-by: Herbert Xu <[email-masked]>

diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index 27ed1b1..8134888 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -105,7 +105,7 @@ config CRYPTO_AES_ARM_CE
 	tristate "Accelerated AES using ARMv8 Crypto Extensions"
 	depends on KERNEL_MODE_NEON
 	select CRYPTO_ALGAPI
-	select CRYPTO_ABLK_HELPER
+	select CRYPTO_SIMD
 	help
 	  Use an implementation of AES in CBC, CTR and XTS modes that uses
 	  ARMv8 Crypto Extensions
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index 5f4a617..c5ce39c 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -48,14 +48,14 @@ config CRYPTO_AES_ARM64_CE_BLK
 	depends on ARM64 && KERNEL_MODE_NEON
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_AES_ARM64_CE
-	select CRYPTO_ABLK_HELPER
+	select CRYPTO_SIMD
 
 config CRYPTO_AES_ARM64_NEON_BLK
 	tristate "AES in ECB/CBC/CTR/XTS modes using NEON instructions"
 	depends on ARM64 && KERNEL_MODE_NEON
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_AES
-	select CRYPTO_ABLK_HELPER
+	select CRYPTO_SIMD
 
 config CRYPTO_CRC32_ARM64
 	tristate "CRC32 and CRC32C using optional ARMv8 instructions"
-- 
Email: Herbert Xu <[email-masked]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt