From 1fd4e5c347bfcef6ae2c31f6a2abce00f6ecaa3f Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 15 Oct 2015 15:28:35 -0700
Subject: [PATCH] lib/Kconfig: ZLIB_DEFLATE must select BITREVERSE

lib/built-in.o: In function `__bitrev32':
deftree.c:(.text+0x1e799): undefined reference to `byte_rev_table'
deftree.c:(.text+0x1e7a0): undefined reference to `byte_rev_table'
deftree.c:(.text+0x1e7b4): undefined reference to `byte_rev_table'
deftree.c:(.text+0x1e7c1): undefined reference to `byte_rev_table'

Anything which uses bitrevX() has to select BITREVERSE, to grab
lib/bitrev.o.

Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Kconfig b/lib/Kconfig
index 2e491ac15622..f0df318104e7 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -220,6 +220,7 @@ config ZLIB_INFLATE
 
 config ZLIB_DEFLATE
 	tristate
+	select BITREVERSE
 
 config LZO_COMPRESS
 	tristate
-- 
2.20.1