linux-kernel - Re: [RFC] x86/alternative: Support relocations in alternatives

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Message-ID: <Y90wk4FVBtmFJZ4s@zn.tnic>
Date:   Fri, 3 Feb 2023 17:04:35 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     x86@...nel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Cooper <Andrew.Cooper3@...rix.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC] x86/alternative: Support relocations in alternatives

On Fri, Feb 03, 2023 at 04:04:55PM +0100, Peter Zijlstra wrote:
> How about:
> 
>   apply_relocation(u8 *buf, size_t len, u8 *dst, u8 *src, size_t src_len)
> 
> Because I get horribly confused by the whole instr and repl thing.

And I get confused by the @src thing. :-)

When it says repl, I know it is the replacement instruction and its
length. You could add kernel-doc as a help I guess...

Rest on IRC. :)

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette