* [PATCH] missing dependency for drivers/net/tun.c
@ 2005-01-11 21:06 Steve French
2005-01-12 21:44 ` Max Krasnyansky
0 siblings, 1 reply; 2+ messages in thread
From: Steve French @ 2005-01-11 21:06 UTC (permalink / raw)
To: maxk, linux-kernel; +Cc: underley
[-- Attachment #1: Type: text/plain, Size: 690 bytes --]
drivers/net/tun.c has a missing dependency on enabling the crc32
libraries in kernel config. With tun enabled and crc32 disabled "make
bzImage" (the linking step) fails. For example:
drivers/built-in.o(.text+0x656f1): In function `add_multi':
linux-2.5cifs/drivers/net/tun.c:112: undefined reference to `crc32_le'
drivers/built-in.o(.text+0x656f9):linux-2.5cifs/drivers/net/tun.c:112:
undefined reference to `bitreverse'
Line 112:
int bit_nr = ether_crc(ETH_ALEN, addr) >> 26;
is a call to the ether_crc macro which maps to the bitreverse function
which is only exported if you enable:
library functions -> CRC32 functions
in kernel config. The following would fix it.
[-- Attachment #2: tun-config.patch --]
[-- Type: text/plain, Size: 400 bytes --]
--- drivers/net/Kconfig.old 2005-01-11 14:59:51.540023800 -0600
+++ drivers/net/Kconfig 2005-01-11 15:00:48.126421360 -0600
@@ -84,6 +84,7 @@
config TUN
tristate "Universal TUN/TAP device driver support"
depends on NETDEVICES
+ select CRC32
---help---
TUN/TAP provides packet reception and transmission for user space
programs. It can be viewed as a simple Point-to-Point or Ethernet
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] missing dependency for drivers/net/tun.c
2005-01-11 21:06 [PATCH] missing dependency for drivers/net/tun.c Steve French
@ 2005-01-12 21:44 ` Max Krasnyansky
0 siblings, 0 replies; 2+ messages in thread
From: Max Krasnyansky @ 2005-01-12 21:44 UTC (permalink / raw)
To: Steve French; +Cc: linux-kernel
Hi Steve,
Applied. Thanks.
btw BK tree with latest TUN updates is at
bk://maxk.bkbits.net/tun-2.6
Max
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-01-11 21:06 [PATCH] missing dependency for drivers/net/tun.c Steve French
2005-01-12 21:44 ` Max Krasnyansky
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