linux-kernel - [PATCH] nvmem: rmem: select CONFIG

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Message-Id: <20250428150831.4001255-1-arnd@kernel.org>
Date: Mon, 28 Apr 2025 17:08:26 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Srinivas Kandagatla <srini@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Théo Lebrun <theo.lebrun@...tlin.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Rafał Miłecki <rafal@...ecki.pl>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] nvmem: rmem: select CONFIG_CRC32

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

The newly added crc checking leads to a link failure if CRC32
itself is disabled:

x86_64-linux-ld: vmlinux.o: in function `rmem_eyeq5_checksum':
rmem.c:(.text+0x52341b): undefined reference to `crc32_le_arch'

Fixes: 7e606c311f70 ("nvmem: rmem: add CRC validation for Mobileye EyeQ5 NVMEM")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/nvmem/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index 8671b7c974b9..eceb3cdb421f 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -260,6 +260,7 @@ config NVMEM_RCAR_EFUSE
 config NVMEM_RMEM
 	tristate "Reserved Memory Based Driver Support"
 	depends on HAS_IOMEM
+	select CRC32
 	help
 	  This driver maps reserved memory into an nvmem device. It might be
 	  useful to expose information left by firmware in memory.
-- 
2.39.5