unresolved symbol htons

mintong · 07-27-2005, 09:14 PM

when i insmod my driver ,i get an error:
insmod :unresolved symbol htons
insmod :unresolved symbol ntons

and then i add the <linux/byteorder/generic.h> and the <asm/byteorder.h>
when i compile ,gcc give the err:
linux/byteorder/generic.h:150 parse error before htons....

if smby can tell me what's the problem now

foo_bar_foo · 07-28-2005, 01:22 AM

try including
linux/netdevice.h
and that will include asm/byteorder.h

mintong · 08-01-2005, 12:49 AM

thanks,but

i have include the <linux/netdevice.h>

foo_bar_foo · 08-01-2005, 01:17 AM

look at
include/linux/byteorder/generic.h

Code:

#if defined(__GNUC__) && (__GNUC__ >= 2) && defined(__OPTIMIZE__)

#define ___htonl(x) __cpu_to_be32(x)
#define ___htons(x) __cpu_to_be16(x)
#define ___ntohl(x) __be32_to_cpu(x)
#define ___ntohs(x) __be16_to_cpu(x)

#define htonl(x) ___htonl(x)
#define ntohl(x) ___ntohl(x)
#define htons(x) ___htons(x)
#define ntohs(x) ___ntohs(x)

#endif /* OPTIMIZE */

so while you give us little to go on and make us guess
in order to have htons macro defined you must use -O2 when compiling

might be other issues -- like i said you make us guess
you even hid what version of the kernel you are using

mintong · 08-03-2005, 09:53 PM

thanks,

because i havn't time to do that these days , i read the thread later!

i will try to compile with -O2;if there is some problem ,i will post all info here

thanks again!!!