From: Kalle Valo <kvalo@codeaurora.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
ath10k@lists.infradead.org, stable@vger.kernel.org
Subject: Re: [PATCH] ath10k: Fix HOST capability QMI incompatibility
Date: Tue, 17 Sep 2019 14:03:41 +0000 (UTC) [thread overview]
Message-ID: <20190917140342.D11AF61576@smtp.codeaurora.org> (raw)
In-Reply-To: <20190725063108.15790-1-bjorn.andersson@linaro.org>
Bjorn Andersson <bjorn.andersson@linaro.org> wrote:
> The introduction of 768ec4c012ac ("ath10k: update HOST capability QMI
> message") served the purpose of supporting the new and extended HOST
> capability QMI message.
>
> But while the new message adds a slew of optional members it changes the
> data type of the "daemon_support" member, which means that older
> versions of the firmware will fail to decode the incoming request
> message.
>
> There is no way to detect this breakage from Linux and there's no way to
> recover from sending the wrong message (i.e. we can't just try one
> format and then fallback to the other), so a quirk is introduced in
> DeviceTree to indicate to the driver that the firmware requires the 8bit
> version of this message.
>
> Cc: stable@vger.kernel.org
> Fixes: 768ec4c012ac ("ath10k: update HOST capability qmi message")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Acked-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
7165ef890a4c ath10k: Fix HOST capability QMI incompatibility
--
https://patchwork.kernel.org/patch/11058005/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2019-09-17 14:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-25 6:31 [PATCH] ath10k: Fix HOST capability QMI incompatibility Bjorn Andersson
2019-07-25 6:31 ` Bjorn Andersson
2019-08-16 21:11 ` Rob Herring
2019-08-16 21:11 ` Rob Herring
2019-09-17 14:03 ` Kalle Valo
2019-09-17 14:03 ` Kalle Valo
2019-09-17 14:03 ` Kalle Valo [this message]
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