From: David Miller <davem@davemloft.net>
To: hliang1025@gmail.com
Cc: peppe.cavallaro@st.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
adi-linux-docs@lists.sourceforge.net
Subject: Re: [PATCH] net: ethernet : stmicro: fixed power suspend and resume failure in stmmac driver
Date: Wed, 01 Oct 2014 13:45:08 -0400 (EDT) [thread overview]
Message-ID: <20141001.134508.1301867654128829684.davem@davemloft.net> (raw)
In-Reply-To: <CAPig_t=oA6BuAt77DDsLqrtRBDbV_vsoAxM31XxLjkAFpYG1-Q@mail.gmail.com>
From: Hao Liang <hliang1025@gmail.com>
Date: Wed, 1 Oct 2014 14:08:28 +0800
> I double-check my patch and the ->mac->xxx calls are still under the lock.
> I think that lock is trying to protect priv struct and related data, so i
> just remove some functions have no bearing on priv struct.
It's preventing parallel invocations of the ->mac->xxx calls.
The other instances are in device open/close, where RTNL semaphore is
held, and no other code paths in the driver can be active.
You need the lock.
next prev parent reply other threads:[~2014-10-01 17:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 5:55 [PATCH] net: ethernet : stmicro: fixed power suspend and resume failure in stmmac driver hliang1025
2014-09-30 13:00 ` Giuseppe CAVALLARO
2014-09-30 19:10 ` David Miller
[not found] ` <CAPig_t=oA6BuAt77DDsLqrtRBDbV_vsoAxM31XxLjkAFpYG1-Q@mail.gmail.com>
2014-10-01 17:45 ` David Miller [this message]
2014-10-16 8:58 ` Giuseppe CAVALLARO
[not found] ` <CAPig_t=Dguhw8jmAX_KvMrB9ZjL1POB+7jrdBmwpvTzjasKD1w@mail.gmail.com>
2014-10-20 15:36 ` David Miller
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