2021-05-26 19:09:36 +00:00
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// SPDX-License-Identifier: GPL-2.0+
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#include <linux/error-injection.h>
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#include <linux/kprobes.h>
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#include <linux/uaccess.h>
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void override_function_with_return(struct pt_regs *regs)
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{
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/*
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* Emulate 'blr'. 'regs' represents the state on entry of a predefined
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* function in the kernel/module, captured on a kprobe. We don't need
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* to worry about 32-bit userspace on a 64-bit kernel.
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*/
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2021-10-02 16:09:28 +00:00
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regs_set_return_ip(regs, regs->link);
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2021-05-26 19:09:36 +00:00
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}
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NOKPROBE_SYMBOL(override_function_with_return);
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