1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/error-injection.h> 4 #include <linux/kprobes.h> 5 6 asmlinkage void just_return_func(void); 7 8 asm( 9 ".type just_return_func, @function\n" 10 "just_return_func:\n" 11 " ret\n" 12 ".size just_return_func, .-just_return_func\n" 13 ); 14 15 void override_function_with_return(struct pt_regs *regs) 16 { 17 regs->ip = (unsigned long)&just_return_func; 18 } 19 NOKPROBE_SYMBOL(override_function_with_return); 20