linux-arm-msm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Johan Hovold <johan+linaro@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Douglas Anderson <dianders@chromium.org>,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-serial@vger.kernel.org,
	Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH v2 0/7] serial: qcom-geni: fix receiver enable
Date: Tue,  1 Oct 2024 14:50:26 +0200	[thread overview]
Message-ID: <20241001125033.10625-1-johan+linaro@kernel.org> (raw)

This series is a follow up to the console fixes in 6.12-rc1 that can
interact badly with some pre-existing bugs.

Specifically, the receiver could end up being disabled when
set_termios() races with the console code during boot.

Fixing the missing locking in set_termios() exposes another
long-standing bug in the DMA implementation (e.g. used for Bluetooth),
which is also fixed in v2.

Johan


Changes in v2
 - keep the call to stop rx in shutdown() which is called also on
   hangups
 - fix rx dma cancellation
 - fix rx cancel dma status bit
 - drop flip buffer WARN()
 - drop unused receive parameter

Johan Hovold (7):
  serial: qcom-geni: fix premature receiver enable
  serial: qcom-geni: fix shutdown race
  serial: qcom-geni: fix dma rx cancellation
  serial: qcom-geni: fix receiver enable
  serial: qcom-geni: fix rx cancel dma status bit
  serial: qcom-geni: drop flip buffer WARN()
  serial: qcom-geni: drop unused receive parameter

 drivers/tty/serial/qcom_geni_serial.c | 40 +++++++++++++++++----------
 include/linux/soc/qcom/geni-se.h      |  2 +-
 2 files changed, 27 insertions(+), 15 deletions(-)

-- 
2.45.2


             reply	other threads:[~2024-10-01 12:51 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-01 12:50 Johan Hovold [this message]
2024-10-01 12:50 ` [PATCH v2 1/7] serial: qcom-geni: fix premature receiver enable Johan Hovold
2024-10-01 13:50   ` Mukesh Kumar Savaliya
2024-10-02  2:07     ` Bjorn Andersson
2024-10-09 13:43     ` Johan Hovold
2024-10-03 18:29   ` Doug Anderson
2024-10-09 13:55     ` Johan Hovold
2024-10-01 12:50 ` [PATCH v2 2/7] serial: qcom-geni: fix shutdown race Johan Hovold
2024-10-01 13:36   ` Bartosz Golaszewski
2024-10-01 13:39     ` Johan Hovold
2024-10-03 18:30   ` Doug Anderson
2024-10-09 14:10     ` Johan Hovold
2024-10-10 22:30       ` Doug Anderson
2024-10-11  6:51         ` Johan Hovold
2024-10-11 14:30           ` Doug Anderson
2024-10-18  9:21             ` Johan Hovold
2024-10-01 12:50 ` [PATCH v2 3/7] serial: qcom-geni: fix dma rx cancellation Johan Hovold
2024-10-01 12:50 ` [PATCH v2 4/7] serial: qcom-geni: fix receiver enable Johan Hovold
2024-10-03 20:10   ` Doug Anderson
2024-10-09 14:17     ` Johan Hovold
2024-10-01 12:50 ` [PATCH v2 5/7] serial: qcom-geni: fix rx cancel dma status bit Johan Hovold
2024-10-03 19:55   ` Doug Anderson
2024-10-09 14:20     ` Johan Hovold
2024-10-01 12:50 ` [PATCH v2 6/7] serial: qcom-geni: drop flip buffer WARN() Johan Hovold
2024-10-03 20:06   ` Doug Anderson
2024-10-09 14:23     ` Johan Hovold
2024-10-01 12:50 ` [PATCH v2 7/7] serial: qcom-geni: drop unused receive parameter Johan Hovold
2024-10-03 20:10   ` Doug Anderson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20241001125033.10625-1-johan+linaro@kernel.org \
    --to=johan+linaro@kernel.org \
    --cc=andersson@kernel.org \
    --cc=dianders@chromium.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=jirislaby@kernel.org \
    --cc=konradybcio@kernel.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-serial@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).