linux-kernel - [PATCH] crypto: atmel-i2c - select CONFIG

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Message-Id: <20201203232022.1485386-1-arnd@kernel.org>
Date:   Fri,  4 Dec 2020 00:20:04 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Tudor-Dan Ambarus <tudor.ambarus@...rochip.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Keerthy <j-keerthy@...com>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] crypto: atmel-i2c - select CONFIG_BITREVERSE

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

The bitreverse helper is almost always built into the kernel,
but in a rare randconfig build it is possible to hit a case
in which it is a loadable module while the atmel-i2c driver
is built-in:

arm-linux-gnueabi-ld: drivers/crypto/atmel-i2c.o: in function `atmel_i2c_checksum':
atmel-i2c.c:(.text+0xa0): undefined reference to `byte_rev_table'

Add one more 'select' statement to prevent this.

Fixes: 11105693fa05 ("crypto: atmel-ecc - introduce Microchip / Atmel ECC driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/crypto/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 6a02ab13835c..67a17644ce17 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -550,6 +550,7 @@ config CRYPTO_DEV_ATMEL_SHA
 
 config CRYPTO_DEV_ATMEL_I2C
 	tristate
+	select BITREVERSE
 
 config CRYPTO_DEV_ATMEL_ECC
 	tristate "Support for Microchip / Atmel ECC hw accelerator"
-- 
2.27.0