make fails and I can't figure out why. Hoping someone can help out

[id74em8]

on running make, this is the output

make -C /lib/modules/6.8.0-36-generic/build M=/home/pentester/Downloads/can-isotp modules make[1]: Entering directory '/usr/src/linux-headers-6.8.0-36-generic' warning: the compiler differs from the one used to build the kernel The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0 You are using: gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0 CC [M] /home/pentester/Downloads/can-isotp/net/can/isotp.o /home/pentester/Downloads/can-isotp/net/can/isotp.c:93:2: error: #error No need to compile this out-of-tree driver! ISO-TP is part of Linux Mainline kernel since Linux 5.10. 93	#error No need to compile this out-of-tree driver! ISO-TP is part of Linux Mainline kernel since Linux 5.10.	^~~~~ /home/pentester/Downloads/can-isotp/net/can/isotp.c: In function ‘isotp_recvmsg’: /home/pentester/Downloads/can-isotp/net/can/isotp.c:1064:44: warning: passing argument 3 of ‘skb_recv_datagram’ makes pointer from integer without a cast [-Wint-conversion] 1064	skb = skb_recv_datagram(sk, flags, noblock, &ret);	^~~
int

In file included from ./include/net/net_namespace.h:43, from ./include/linux/netdevice.h:38, from /home/pentester/Downloads/can-isotp/net/can/isotp.c:60: ./include/linux/skbuff.h:3972:77: note: expected ‘int ’ but argument is of type ‘int’ 3972 | struct sk_buff skb_recv_datagram(struct sock sk, unsigned int flags, int err); | ~^~~ /home/pentester/Downloads/can-isotp/net/can/isotp.c:1064:15: error: too many arguments to function ‘skb_recv_datagram’ 1064 | skb = skb_recv_datagram(sk, flags, noblock, &ret); | ^~~~~ ./include/linux/skbuff.h:3972:17: note: declared here 3972 | struct sk_buff skb_recv_datagram(struct sock sk, unsigned int flags, int *err); | ^~~~~ /home/pentester/Downloads/can-isotp/net/can/isotp.c: At top level: /home/pentester/Downloads/can-isotp/net/can/isotp.c:1630:10: error: ‘const struct proto_ops’ has no member named ‘sendpage’ 1630 | .sendpage = sock_no_sendpage, | ^~~~ /home/pentester/Downloads/can-isotp/net/can/isotp.c:1630:21: error: ‘sock_no_sendpage’ undeclared here (not in a function); did you mean ‘sock_no_sendmsg’? 1630 | .sendpage = sock_no_sendpage, | ^~~~ | sock_no_sendmsg make[4]: [scripts/Makefile.build:243: /home/pentester/Downloads/can-isotp/net/can/isotp.o] Error 1 make[3]: [scripts/Makefile.build:481: /home/pentester/Downloads/can-isotp/net/can] Error 2 make[2]: [/usr/src/linux-headers-6.8.0-36-generic/Makefile:1926: /home/pentester/Downloads/can-isotp] Error 2 make[1]: [Makefile:240: __sub-make] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-6.8.0-36-generic' make: *** [Makefile:21: modules] Error 2

[HenrikWestphal]

try the mainline-5.4+ Branch git clone -b mainline-5.4+ --single-branch https://github.com/hartkopp/can-isotp.git

[hartkopp]

PLEASE read the README!!

"Linux Kernel Module for ISO 15765-2:2016 CAN transport protocol PLEASE NOTE: This module is part of the mainline Linux kernel since version 5.10 "

You don't need to compile this module for your 6.8 kernel. It is already there and working.

[hartkopp]

Ok, as the compiler output already solved this issue it can be closed.

make -C /lib/modules/6.8.0-36-generic/build M=/home/pentester/Downloads/can-isotp modules
make[1]: Entering directory '/usr/src/linux-headers-6.8.0-36-generic'
warning: the compiler differs from the one used to build the kernel
The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0
You are using: gcc-13 (Ubuntu 13.2.0-23ubuntu4) 13.2.0
CC [M] /home/pentester/Downloads/can-isotp/net/can/isotp.o
/home/pentester/Downloads/can-isotp/net/can/isotp.c:93:2: error: #error No need to compile this out-of-tree driver! ISO-TP is part of Linux Mainline kernel since Linux 5.10.
93 | #error No need to compile this out-of-tree driver! ISO-TP is part of Linux Mainline kernel since Linux 5.10.
| ^~~~~