linux-kernel - [PATCH v2 0/2] misc: fastrpc: Fixes for issues in userspace

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Message-Id: <20230327210217.60948-1-mailingradian@gmail.com>
Date:   Mon, 27 Mar 2023 17:02:16 -0400
From:   Richard Acayan <mailingradian@...il.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Amol Maheshwari <amahesh@....qualcomm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Richard Acayan <mailingradian@...il.com>
Subject: [PATCH v2 0/2] misc: fastrpc: Fixes for issues in userspace

Changes since v1 (20230130222716.7016-1-mailingradian@...il.com):
 - use /* */ for comments (2/2)
 - exclude demonstration from final commit message (2/2)
 - accumulate review tags (1-2/2)

Hi everyone,

I've been playing around a bit with the FastRPC ioctl interface on the
Pixel 3a with some device tree patches. I was testing on a device tree
that caused the ADSP to crash every 10 seconds, and the inconvenience
caused by related bugs encouraged me to write a few fixes. A
demonstration is provided in patch 2.

Please enjoy and review these patches for better userspace while remote
processors crash.

Richard Acayan (2):
  misc: fastrpc: return -EPIPE to invocations on device removal
  misc: fastrpc: reject new invocations during device removal

 drivers/misc/fastrpc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

-- 
2.40.0