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Re: [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.

To: David Gálvez <dgalvez75@gmail.com>
Subject: Re: [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Thu, 09 Oct 2014 11:31:22 +0200
Cc: mint list <mint@lists.fishpool.fi>
In-reply-to: <CAL4YKD5piVOt0nXoaATer+fB_7NH507a_R2xd=6q5qwTpGRSPg@mail.gmail.com> ("David \=\?utf-8\?Q\?G\=C3\=A1lvez\=22's\?\= message of "Thu, 9 Oct 2014 11:16:59 +0200")
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David Gálvez <dgalvez75@gmail.com> writes:

> I've been reading about this, shouldn't the keyword "volatile" be
> enough to avoid gcc to move the asm() line?

volatile only tells gcc not to delete the asm statement even if its
inputs/outputs are unused.  But it can still move it around unrelated
memory accesses.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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Follow-Ups:
- Re: [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: David Gálvez <dgalvez75@gmail.com>

References:
- Re: [MiNT] [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: Vincent Rivière <vincent.riviere@freesbee.fr>
- Re: [MiNT] [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: David Gálvez <dgalvez75@gmail.com>
- Re: [MiNT] [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: Alan Hourihane <alanh@fairlite.co.uk>
- [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: "markus@mubf.de" <markus@mubf.de>
- Re: [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: David Gálvez <dgalvez75@gmail.com>
- Re: [MiNT] Aw: Re: [PATCH] Make EHCI driver interrupt handler follow PCI-BIOS specification.
  - From: David Gálvez <dgalvez75@gmail.com>

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