linux-kernel - [PATCH] drivers: firmware: efi: fix Kconfig dependency on CRYPTO

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Message-Id: <20210227032949.31977-1-julianbraha@gmail.com>
Date:   Fri, 26 Feb 2021 22:29:49 -0500
From:   Julian Braha <julianbraha@...il.com>
To:     ardb@...nel.org
Cc:     linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drivers: firmware: efi: fix Kconfig dependency on CRYPTO

When EFI_EMBEDDED_FIRMWARE is enabled, and CRYPTO is not enabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for CRYPTO_LIB_SHA256
  Depends on [n]: CRYPTO [=n]
  Selected by [y]:
  - EFI_EMBEDDED_FIRMWARE [=y] && EFI [=y]

This is because EFI_EMBEDDED_FIRMWARE selects CRYPTO_LIB_SHA256
without selecting or depending on CRYPTO, despite CRYPTO_LIB_SHA256
depending on CRYPTO.

Signed-off-by: Julian Braha <julianbraha@...il.com>
---
 drivers/firmware/efi/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index 2c3dac5ecb36..f914da9845ac 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -248,6 +248,7 @@ endmenu
 config EFI_EMBEDDED_FIRMWARE
 	bool
 	depends on EFI
+	select CRYPTO
 	select CRYPTO_LIB_SHA256
 
 config UEFI_CPER
-- 
2.27.0