/* * import.c -- a module using a symbol from export.c * * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet * Copyright (C) 2001 O'Reilly & Associates * * The source code in this file can be freely used, adapted, * and redistributed in source or binary form, so long as an * acknowledgment appears in derived source files. The citation * should list that the code comes from the book "Linux Device * Drivers" by Alessandro Rubini and Jonathan Corbet, published * by O'Reilly & Associates. No warranty is attached; * we cannot take responsibility for errors or fitness for use. * */ #ifndef __KERNEL__ # define __KERNEL__ #endif #ifndef MODULE # define MODULE #endif /* * Use versioning if needed */ #include /* retrieve the CONFIG_* macros */ #ifdef CONFIG_MODVERSIONS # undef MODVERSIONS /* it might be defined */ # define MODVERSIONS #endif #ifdef MODVERSIONS # include # include "export.ver" #endif #include #include #include "sysdep.h" extern int export_function(int, int); int import_init(void) { int i = export_function(2,2); printk("import: my mate tells that 2+2 = %i\n",i); return 0; } void import_cleanup(void) {} module_init(import_init); module_exit(import_cleanup);
