[Linux-stm32] [PATCH net] net: stmmac: Hold rtnl lock in suspend/resume callbacks

[David Miller]

From: Jose Abreu <Jose.Abreu at synopsys.com>
Date: Fri, 13 Sep 2019 11:50:32 +0200

> We need to hold rnl lock in suspend and resume callbacks because phylink
> requires it. Otherwise we will get a WARN() in suspend and resume.
> 
> Also, move phylink start and stop callbacks to inside device's internal
> lock so that we prevent concurrent HW accesses.
> 
> Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
> Reported-by: Christophe ROULLIER <christophe.roullier at st.com>
> Tested-by: Christophe ROULLIER <christophe.roullier at st.com>
> Signed-off-by: Jose Abreu <joabreu at synopsys.com>

Applied and queued up for v5.3 -stable.

Thanks.