linux-kernel - Re: [REPORT] RESERVE_BRK() doesn't work for some cases

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Message-ID: <20220609024522.7zaqp4rm3j6dhmdn@treble>
Date:   Wed, 8 Jun 2022 19:45:22 -0700
From:   Josh Poimboeuf <jpoimboe@...nel.org>
To:     Byungchul Park <byungchul.park@....com>
Cc:     peterz@...radead.org, jpoimboe@...hat.com, bp@...e.de,
        linux-kernel@...r.kernel.org, kernel-team@....com
Subject: Re: [REPORT] RESERVE_BRK() doesn't work for some cases

On Thu, Jun 09, 2022 at 10:30:51AM +0900, Byungchul Park wrote:
> commit a1e2c031ec3 "x86/mm: Simplify RESERVE_BRK()" changed the behavior
> by compiler and assembler.
> 
> Some strings obtained just by __stringify() cannot be interpreted by
> some assemblers.
> 
> It might need to allow to put input for size within inline asm.

Yes, this was reported already.  I'm posting a v2 fix tomorrow.

-- 
Josh