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authorJeremy Kerr <jk@ozlabs.org>2017-06-06 16:08:39 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 11:52:07 +0200
commit0cbaa44841db3d06d2a21ae4ab679882033f3dbe (patch)
treec400ed524386505865c81fe8f11396f98e529c48 /lib/Kconfig
parent414c1026319bc10796a868c1fa0ba312c4ca9e67 (diff)
lib: Add crc4 module
Add a little helper for crc4 calculations. This works 4-bits-at-a-time, using a simple table approach. We will need this in the FSI core code, as well as any master implementations that need to calculate CRCs in software. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Chris Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 0c8b78a9ae2e..d2fd2623721e 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -158,6 +158,14 @@ config CRC32_BIT
endchoice
+config CRC4
+ tristate "CRC4 functions"
+ help
+ This option is provided for the case where no in-kernel-tree
+ modules require CRC4 functions, but a module built outside
+ the kernel tree does. Such modules that use library CRC4
+ functions require M here.
+
config CRC7
tristate "CRC7 functions"
help