On Wed, 2 Mar 2022 23:02:23 +0800 kernel test robot wrote: > In file included from net/smc/smc_sysctl.c:18: > net/smc/smc_sysctl.h:23:19: note: previous definition of 'smc_sysctl_init' with type 'int(void)' > 23 | static inline int smc_sysctl_init(void) > | ^~~~~~~~~~~~~~~ > >> net/smc/smc_sysctl.c:78:1: warning: ignoring attribute 'noinline' because it conflicts with attribute 'gnu_inline' [-Wattributes] > 78 | { > | ^ The __net_init / __net_exit attr has to go on the prototype as well. This doesn't look right, tho, why __net_* attrs? You call those functions from the module init/exit. __net_ is for namespace code.