linux-kernel - Re: [Bugfix v2 1/5] x86/irq: Do not reuse struct apic_chip_data.old

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Date:	Wed, 23 Dec 2015 20:10:39 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Joe Lawrence <joe.lawrence@...atus.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Jeremiah Mahler <jmmahler@...il.com>,
	andy.shevchenko@...il.com, Guenter Roeck <linux@...ck-us.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [Bugfix v2 1/5] x86/irq: Do not reuse struct
 apic_chip_data.old_domain as temporary buffer

On Wed, Dec 23, 2015 at 10:13:26PM +0800, Jiang Liu wrote:
> Function __assign_irq_vector() makes use of apic_chip_data.old_domain
> as a temporary buffer, which causes trouble to rollback logic in case of
> failure. So use a dedicated temporary buffer for __assign_irq_vector().
> 
> Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
> ---
>  arch/x86/kernel/apic/vector.c |    9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)

All 5:

Tested-by: Borislav Petkov <bp@...e.de>

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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