linux-kernel - Re: [PATCH] net: qca_spi: Fix race condition in spi transfers

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Message-Id: <20180901.222738.2092199274760750174.davem@davemloft.net>
Date:   Sat, 01 Sep 2018 22:27:38 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     stefan.wahren@...e.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: qca_spi: Fix race condition in spi transfers

From: Stefan Wahren <stefan.wahren@...e.com>
Date: Fri, 31 Aug 2018 14:53:01 +0200

> The performance optimization with the prepared spi messages
> also introduced a race condition between the kernel thread
> and the register dump. This could make spi_sync hang forever.
> 
> So revert the optimization completely.
> 
> Signed-off-by: Stefan Wahren <stefan.wahren@...e.com>

Please resubmit this patch with a better commit message, explaining in
more detail what the race is exactly.

Thank you.