linux-kernel - [PATCH 2/2] crypto: crypto4xx - Avoid linking failure with HW

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Message-Id: <20210130225540.1639-2-f.fainelli@gmail.com>
Date:   Sat, 30 Jan 2021 14:55:38 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org, arndb@...nel.org
Cc:     kbuild-all@...ts.01.org, Florian Fainelli <f.fainelli@...il.com>,
        kernel test robot <lkp@...el.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org (open list:CRYPTO API)
Subject: [PATCH 2/2] crypto: crypto4xx - Avoid linking failure with HW_RANDOM=m

It is currently possible to build CONFIG_HW_RANDOM_PPC4XX=y with
CONFIG_HW_RANDOM=m which would lead to the inability of linking with
devm_hwrng_{register,unregister}. We cannot have the framework modular
and the consumer of that framework built-in, so make that dependency
explicit.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/crypto/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index e535f28a8028..c833ac08ea81 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -348,7 +348,7 @@ config CRYPTO_DEV_PPC4XX
 
 config HW_RANDOM_PPC4XX
 	bool "PowerPC 4xx generic true random number generator support"
-	depends on CRYPTO_DEV_PPC4XX && HW_RANDOM
+	depends on CRYPTO_DEV_PPC4XX && HW_RANDOM=y
 	default y
 	help
 	 This option provides the kernel-side support for the TRNG hardware
-- 
2.25.1