On Sun, Jan 22, 2012 at 11:15, Geert Uytterhoeven <[email protected]> wrote:
> On Mon, Jan 9, 2012 at 15:10, Andreas Schwab <[email protected]> wrote:
>> Passing the address of a variable as an operand to an asm statement
>> doesn't mark the value of this variable as used, so gcc may optimize its
>> initialisation away. Fix this by using the "m" constraint instead.
>
> Thanks! I'll apply and queue for -stable.
BTW, is it reasonable to assume we never saw the problem before because
there used to be a set_fs() call in flush_thread()?
Cfr. commit b7de110044b4e26adcb7b278d14da93133692ed7 ("m68k, exec:
remove redundant set_fs(USER_DS)"),
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=b7de110044b4e26adcb7b278d14da93133692ed7
That would mean it happens in 3.1 and later only.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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