| Problem compiling kernel module
Who can tell me why it says as below when I was compiling a kernel module: WARNING: "tcp_send_ack" [/root/test/test.ko] undefined!
WARNING: "__tcp_push_pending_frames" [/root/test/test.ko] undefined!
WARNING: "tcp_current_mss" [/root/test/test.ko] undefined! since I've checked that these functions are declared in `` /usr/src/linux-2.6.17.11/include/net/tcp.h''.
I invoke make as below make -C /lib/modules/2.6.17.11/build M=/root/test modules And the first few lines of my source code are: #include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <net/netlink.h>
#include <net/ipv6.h>
#include <net/tcp.h> | 
The Linux Kernel Compiling, theory, programming or other discussion about the linux kernel
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