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Date: Thu, 12 May 2011 10:31:08 -0500
From: Scott Wood <scottwood@freescale.com>
To: Li Yang-R58472 <R58472@freescale.com>
Subject: Re: [linuxppc-release] [PATCH 1/2] powerpc,	e5500: add networking
	to defconfig
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On Thu, 12 May 2011 01:11:03 -0500
Li Yang-R58472 <R58472@freescale.com> wrote:

> >Subject: [linuxppc-release] [PATCH 1/2] powerpc, e5500: add networking to
> >defconfig
> >
> >Even though support for the p5020's on-chip ethernet is not yet upstream,
> >it is not appropriate to disable all networking support (including
> >loopback, unix domain sockets, external ethernet devices, etc) in the
> >defconfig.  The networking settings are taken from mpc85xx_smp_defconfig,
> >minus the drivers for ethernet devices not found on any current e5500 chip.
> >
> >The other changes are the result of running "make savedefconfig".
> >
> >Signed-off-by: Scott Wood <scottwood@freescale.com>
> >---
> > arch/powerpc/configs/e55xx_smp_defconfig |   38 ++++++++++++++++++++++---
> >----
> > 1 files changed, 29 insertions(+), 9 deletions(-)
> >
> >diff --git a/arch/powerpc/configs/e55xx_smp_defconfig
> >b/arch/powerpc/configs/e55xx_smp_defconfig
> >index 9fa1613..f4c5780 100644
> >--- a/arch/powerpc/configs/e55xx_smp_defconfig
> >+++ b/arch/powerpc/configs/e55xx_smp_defconfig
> >@@ -6,10 +6,10 @@ CONFIG_NR_CPUS=2
> > CONFIG_EXPERIMENTAL=y
> > CONFIG_SYSVIPC=y
> > CONFIG_BSD_PROCESS_ACCT=y
> >+CONFIG_SPARSE_IRQ=y
> 
> Hi Scott,
> 
> I remember in previous testing that this option has a negative effect on performance.  Do we really need it to be enabled?

I didn't change this setting, it just moved due to running it through
savedefconfig.

-Scott