[PATCH v2 13/29] fs: ext4: Fix building ext4 in SPL if write is enabled

[Sean Anderson <seanga2@gmail.com>]

If EXT4_WRITE is enabled, write capabilities will be compiled into SPL, but
not CRC16. Add an option to enable CRC16 to avoid linker errors.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

(no changes since v1)

 common/spl/Kconfig | 1 +
 lib/Kconfig        | 6 ++++++
 lib/Makefile       | 1 +
 3 files changed, 8 insertions(+)

diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index ad574a600e3..6bc4066fad7 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -657,6 +657,7 @@ config SPL_ETH
 
 config SPL_FS_EXT4
 	bool "Support EXT filesystems"
+	select SPL_CRC16 if EXT4_WRITE
 	help
 	  Enable support for EXT2/3/4 filesystems with SPL. This permits
 	  U-Boot (or Linux in Falcon mode) to be loaded from an EXT
diff --git a/lib/Kconfig b/lib/Kconfig
index 79cf9ef0fa3..f6ca559897e 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -687,6 +687,12 @@ config SPL_CRC8
 	  checksum with feedback to produce an 8-bit result. The code is small
 	  and it does not require a lookup table (unlike CRC32).
 
+config SPL_CRC16
+	bool "Support CRC16 in SPL"
+	depends on SPL
+	help
+	  Enables CRC16 support in SPL. This is not normally required.
+
 config CRC32
 	def_bool y
 	help
diff --git a/lib/Makefile b/lib/Makefile
index 1c31ad9531e..2a76acf100d 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -64,6 +64,7 @@ obj-$(CONFIG_TPM_V2) += tpm-v2.o
 endif
 
 obj-$(CONFIG_$(SPL_TPL_)CRC8) += crc8.o
+obj-$(CONFIG_$(SPL_TPL_)CRC16) += crc16.o
 
 obj-y += crypto/
 
-- 
2.37.1