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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 6/7] serial: qcom-geni: drop flip buffer WARN()
Date: Tue,  1 Oct 2024 14:50:32 +0200	[thread overview]
Message-ID: <20241001125033.10625-7-johan+linaro@kernel.org> (raw)
In-Reply-To: <20241001125033.10625-1-johan+linaro@kernel.org>

Drop the unnecessary WARN() in case the TTY buffers are ever full in
favour of a rate limited dev_err() which doesn't kill the machine when
panic_on_warn is set.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/tty/serial/qcom_geni_serial.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 5b6c5388efee..8bc4b240bf59 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -570,9 +570,8 @@ static void handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
 
 	ret = tty_insert_flip_string(tport, port->rx_buf, bytes);
 	if (ret != bytes) {
-		dev_err(uport->dev, "%s:Unable to push data ret %d_bytes %d\n",
-				__func__, ret, bytes);
-		WARN_ON_ONCE(1);
+		dev_err_ratelimited(uport->dev, "failed to push data (%d < %u)\n",
+				ret, bytes);
 	}
 	uport->icount.rx += ret;
 	tty_flip_buffer_push(tport);
-- 
2.45.2


  parent 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 [PATCH v2 0/7] serial: qcom-geni: fix receiver enable Johan Hovold
2024-10-01 12:50 ` [PATCH v2 1/7] serial: qcom-geni: fix premature " 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 ` Johan Hovold [this message]
2024-10-03 20:06   ` [PATCH v2 6/7] serial: qcom-geni: drop flip buffer WARN() 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

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