netdev - Re: [PATCH] e1000e: avoid incorrect ioremap/iounmap sequences for e1000_pch

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Date:	Wed, 25 Feb 2015 13:24:13 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	"John W. Linville" <linville@...driver.com>
Cc:	netdev@...r.kernel.org, David Ertman <david.m.ertman@...el.com>
Subject: Re: [PATCH] e1000e: avoid incorrect ioremap/iounmap sequences for
 e1000_pch_spt

On Wed, 2015-02-25 at 14:11 -0500, John W. Linville wrote:
> Commit 79849ebc0e06 (e1000e: initial support for i219) overwrites
> hw->flash_addr for e1000_pch_spt MACs without doing an iounmap.
> It also reuses the address without changing the areas that then
> iounmap the new address (which was never explicitly ioremap'ed).
> This causes iounmap to spit-out a call trace on rmmod.
> 
> This patch circumvents this issue on the early hardware that we have
> in-house at Red Hat.
> 
> Signed-off-by: John W. Linville <linville@...driver.com>
> Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
> Cc: David Ertman <david.m.ertman@...el.com>
> ---
>  drivers/net/ethernet/intel/e1000e/netdev.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Thanks John, your patch has been added to my queue.

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