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net: move 6lowpan compression code to separate module

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IEEE 802.15.4 and Bluetooth networking stacks share 6lowpan compression
code. Instead of introducing Makefile/Kconfig hacks, build this code as
a separate module referenced from both ieee802154 and bluetooth modules.

This fixes the following build error observed in some kernel
configurations:

net/built-in.o: In function `header_create': 6lowpan.c:(.text+0x166149): undefined reference to `lowpan_header_compress'
net/built-in.o: In function `bt_6lowpan_recv': (.text+0x166b3c): undefined reference to `lowpan_process_data'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Eremin-Solenikov
2014-01-15 02:50:40 +04:00
committed by David S. Miller
parent 89fc8632dd
commit a53d34c346
4 changed files with 11 additions and 2 deletions
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net/bluetooth/Kconfig
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@@ -12,6 +12,7 @@ menuconfig BT
select CRYPTO_AES
select CRYPTO_ECB
select CRYPTO_SHA256
select 6LOWPAN_IPHC
help
Bluetooth is low-cost, low-power, short-range wireless technology.
It was designed as a replacement for cables and other short-range