linux-kernel - [PATCH] virt: sevguest: add CONFIG

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Message-Id: <20230117171416.2715125-1-arnd@kernel.org>
Date:   Tue, 17 Jan 2023 18:13:56 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Tom Lendacky <thomas.lendacky@....com>,
        Borislav Petkov <bp@...e.de>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Brijesh Singh <brijesh.singh@....com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] virt: sevguest: add CONFIG_CRYPTO dependency

From: Arnd Bergmann <arnd@...db.de>

This driver fails to link when CRYPTO is disabled, or in a loadable module:

WARNING: unmet direct dependencies detected for CRYPTO_GCM
WARNING: unmet direct dependencies detected for CRYPTO_AEAD2
  Depends on [m]: CRYPTO [=m]
  Selected by [y]:
  - SEV_GUEST [=y] && VIRT_DRIVERS [=y] && AMD_MEM_ENCRYPT [=y]

x86_64-linux-ld: crypto/aead.o: in function `crypto_register_aeads':

Fixes: d63670d23e60 ("virt: sevguest: Rename the sevguest dir and files to sev-guest")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/virt/coco/sev-guest/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/virt/coco/sev-guest/Kconfig b/drivers/virt/coco/sev-guest/Kconfig
index f9db0799ae67..da2d7ca531f0 100644
--- a/drivers/virt/coco/sev-guest/Kconfig
+++ b/drivers/virt/coco/sev-guest/Kconfig
@@ -2,6 +2,7 @@ config SEV_GUEST
 	tristate "AMD SEV Guest driver"
 	default m
 	depends on AMD_MEM_ENCRYPT
+	select CRYPTO
 	select CRYPTO_AEAD2
 	select CRYPTO_GCM
 	help
-- 
2.39.0