albertofaria
commented
2 years ago Thanks for the report! At first sight, it appears that you are using a kernel with distribution-specific patches that modified the access_ok() macro. What Linux distribution and version are you using?
When I build dbus with some errors，should sove for it？ make -C /lib/modules/4.18.0-193.el8.x86_64/build M='/test/bdus-0.1.1/kbdus' W=1 C=0 DEBUG=0 make[1]: 进入目录“/usr/src/kernels/4.18.0-193.el8.x86_64” CC [M] /test/bdus-0.1.1/kbdus/src/control.o CC [M] /test/bdus-0.1.1/kbdus/src/device.o /test/bdus-0.1.1/kbdus/src/device.c: 在函数‘kbdus_device_ioctl_createbuffer’中: /test/bdus-0.1.1/kbdus/src/device.c:523:34: 错误：宏“access_ok”传递了 3 个参数，但只需要 2 个 argument_usrptr, size)) ^ In file included from /test/bdus-0.1.1/kbdus/src/device.c:8: /test/bdus-0.1.1/kbdus/include-private/kbdus/utilities.h:45:43: 错误：‘access_ok’未声明(在此函数内第一次使用)
define kbdus_access_ok(type, addr, size) access_ok((type), (addr), (size))
/test/bdus-0.1.1/kbdus/src/device.c:520:10: 附注：in expansion of macro ‘kbdus_access_ok’ if (!kbdus_access_ok( ^
~~~~~~ /test/bdus-0.1.1/kbdus/include-private/kbdus/utilities.h:45:43: 附注：每个未声明的标识符在其出现的函数内只报告一次define kbdus_access_ok(type, addr, size) access_ok((type), (addr), (size))
/test/bdus-0.1.1/kbdus/src/device.c:520:10: 附注：in expansion of macro ‘kbdus_access_ok’ if (!kbdus_access_ok( ^
~~~~~~ make[2]: [scripts/Makefile.build:313：/test/bdus-0.1.1/kbdus/src/device.o] 错误 1 make[1]: [Makefile:1542：module/test/bdus-0.1.1/kbdus] 错误 2 make[1]: 离开目录“/usr/src/kernels/4.18.0-193.el8.x86_64” make: *** [Makefile:45：kbdus.ko] 错误 2