// SPDX-License-Identifier: GPL-2.0 #include <linux/linkage.h> #include <linux/error-injection.h> #include <linux/kprobes.h> asmlinkage void just_return_func(void); asm( ".text\n" ".type just_return_func, @function\n" ".globl just_return_func\n" "just_return_func:\n" ASM_RET ".size just_return_func, .-just_return_func\n" ); void override_function_with_return(struct pt_regs *regs) { regs->ip = (unsigned long)&just_return_func; } NOKPROBE_SYMBOL(override_function_with_return);