linux-kernel - Re: KASAN_INLINE && patchable-function-entry

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Message-ID: <20191122113553.GA16287@lakrids.cambridge.arm.com>
Date:   Fri, 22 Nov 2019 11:35:53 +0000
From:   Mark Rutland <mark.rutland@....com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Torsten Duwe <duwe@...e.de>, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>
Subject: Re: KASAN_INLINE && patchable-function-entry

On Fri, Nov 22, 2019 at 11:32:57AM +0000, Mark Rutland wrote:
 
> Another option would be to have arm64's ftrace_adjust_addr() detect this
> case and return NULL, given we don't need to perform any call site
> initialization for the redundant NOPs. I'm just not sure if we have all
> the necessary information at that point, though.

Whoops; I meant ftrace_call_adjust() above.

Mark.