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Date:   Tue, 08 Nov 2016 14:37:09 +0100
From:   Arnd Bergmann <>
To:     "David S. Miller" <>
Cc:     Philippe Reynes <>,,
Subject: Re: [PATCH] net: mii: report 0 for unknown lp_advertising

On Tuesday, November 8, 2016 2:31:38 PM CET Arnd Bergmann wrote:
> The newly introduced mii_ethtool_get_link_ksettings function sets
> lp_advertising to an uninitialized value when BMCR_ANENABLE is not
> set:
> drivers/net/mii.c: In function 'mii_ethtool_get_link_ksettings':
> drivers/net/mii.c:224:2: error: 'lp_advertising' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> As documented in include/uapi/linux/ethtool.h, the value is
> expected to be zero when we don't know it, so let's initialize
> it to that.
> Fixes: bc8ee596afe8 ("net: mii: add generic function to support ksetting support")
> Signed-off-by: Arnd Bergmann <>

In case there was any doubt: the patch causing this is currently in net-next
and has just shown up in linux-next.


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