From: Ingo Molnar <mingo@kernel.org>
To: Nicholas Krause <xerofoify@gmail.com>
Cc: bhelgaas@google.com, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, x86@kernel.org, --cclinux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] x86:pci: Change sta2x11_dma_ops stucture to use switolb_dma_supported as it's dma_supported function in sta2x11-fixup.c
Date: Mon, 16 Feb 2015 08:55:06 +0100 [thread overview]
Message-ID: <20150216075506.GA25780@gmail.com> (raw)
In-Reply-To: <1424030062-8668-1-git-send-email-xerofoify@gmail.com>
* Nicholas Krause <xerofoify@gmail.com> wrote:
> This changes the structure sta2x11_dma_ops stucture to
> use switolb_dma_supported as it's function for
> dma_supported hardware verus setting this value to NULL
> as this should be set correctly for when dma_supported
> function needs to be called for this hardware. Otherwise
> this will cause a bug that will crash a operation needing
> to access this function if an intended hardware operation
> needs to call it but the kernel has the function pointer
> for this structure set to NULL incorrectly.
This is a pretty vague description - what specific hardware
is affected and how is the bug triggered?
Thanks,
Ingo
next parent reply other threads:[~2015-02-16 7:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1424030062-8668-1-git-send-email-xerofoify@gmail.com>
2015-02-16 7:55 ` Ingo Molnar [this message]
[not found] ` <54E243F4.4040708@gmail.com>
2015-02-18 18:06 ` [PATCH RESEND] x86:pci: Change sta2x11_dma_ops stucture to use switolb_dma_supported as it's dma_supported function in sta2x11-fixup.c Ingo Molnar
2015-02-16 21:39 ` Bjorn Helgaas
[not found] <1425959625-14551-1-git-send-email-xerofoify@gmail.com>
2015-03-10 4:45 ` Ingo Molnar
[not found] ` <0393A100-7C14-4185-AD1A-5C2364B8CEE3@gmail.com>
2015-03-10 5:32 ` Ingo Molnar
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