linux-kernel - Re: [PATCH v2] platform/chrome: Re-introduce cros_ec_cmd

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Date:   Wed, 20 Apr 2022 09:10:11 +0000
From:   patchwork-bot+chrome-platform@...nel.org
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     bleung@...omium.org, chrome-platform@...ts.linux.dev,
        linux-kernel@...r.kernel.org, dnojiri@...omium.org,
        robbarnes@...gle.com, rajatja@...gle.com, briannorris@...omium.org,
        parthmalkan@...gle.com
Subject: Re: [PATCH v2] platform/chrome: Re-introduce cros_ec_cmd_xfer and use it
 for ioctls

Hello:

This patch was applied to chrome-platform/linux.git (for-next)
by Tzung-Bi Shih <tzungbi@...nel.org>:

On Fri, 18 Mar 2022 09:54:22 -0700 you wrote:
> Commit 413dda8f2c6f ("platform/chrome: cros_ec_chardev: Use
> cros_ec_cmd_xfer_status helper") inadvertendly changed the userspace ABI.
> Previously, cros_ec ioctls would only report errors if the EC communication
> failed, and otherwise return success and the result of the EC
> communication. An EC command execution failure was reported in the EC
> response field. The above mentioned commit changed this behavior, and the
> ioctl itself would fail. This breaks userspace commands trying to analyze
> the EC command execution error since the actual EC command response is no
> longer reported to userspace.
> 
> [...]

Here is the summary with links:
  - [v2] platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls
    https://git.kernel.org/chrome-platform/c/57b888ca2541

You are awesome, thank you!
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