When VSX is disabled, eg. microwatt_defconfig, the build fails with:

  In function ‘enable_kernel_vsx’,
      inlined from ‘vsx_begin’ at arch/powerpc/crypto/aes-gcm-p10-glue.c:68:2,
      inlined from ‘p10_aes_gcm_crypt.constprop’ at 
arch/powerpc/crypto/aes-gcm-p10-glue.c:244:2:
  ...
  arch/powerpc/include/asm/switch_to.h:86:9: note: in expansion of macro 
‘BUILD_BUG’
     86 |         BUILD_BUG();
        |         ^~~~~~~~~

Fix it by making the p10-aes-gcm code depend on VSX.

Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/crypto/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index 7113f9355165..ad1872518992 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -96,7 +96,7 @@ config CRYPTO_AES_PPC_SPE
 
 config CRYPTO_AES_GCM_P10
        tristate "Stitched AES/GCM acceleration support on P10 or later CPU 
(PPC)"
-       depends on PPC64 && CPU_LITTLE_ENDIAN
+       depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
        select CRYPTO_LIB_AES
        select CRYPTO_ALGAPI
        select CRYPTO_AEAD
-- 
2.40.1

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