linux-kernel - Re: [PATCH] net: stmmac: Use mutex instead of spinlock

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Message-Id: <20180528.225445.996478506804495385.davem@davemloft.net>
Date:   Mon, 28 May 2018 22:54:45 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     thierry.reding@...il.com
Cc:     peppe.cavallaro@...com, alexandre.torgue@...com,
        jonathanh@...dia.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: stmmac: Use mutex instead of spinlock

From: Thierry Reding <thierry.reding@...il.com>
Date: Thu, 24 May 2018 16:09:07 +0200

> From: Thierry Reding <treding@...dia.com>
> 
> Some drivers, such as DWC EQOS on Tegra, need to perform operations that
> can sleep under this lock (clk_set_rate() in tegra_eqos_fix_speed()) for
> proper operation. Since there is no need for this lock to be a spinlock,
> convert it to a mutex instead.
> 
> Fixes: e6ea2d16fc61 ("net: stmmac: dwc-qos: Add Tegra186 support")
> Reported-by: Jon Hunter <jonathanh@...dia.com>
> Signed-off-by: Thierry Reding <treding@...dia.com>
> ---
> This applies on top of net-next.

Applied to net-next.