[PATCH] spi: stm32: Print summary 'callbacks suppressed' message

From: Marek Vasut <marex@denx.de>
To: linux-spi@vger.kernel.org
Cc: Marek Vasut <marex@denx.de>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Amelie Delaunay <amelie.delaunay@foss.st.com>,
	Antonio Borneo <borneo.antonio@gmail.com>,
	Mark Brown <broonie@kernel.org>
Subject: [PATCH] spi: stm32: Print summary 'callbacks suppressed' message
Date: Tue, 18 Oct 2022 20:35:13 +0200	[thread overview]
Message-ID: <20221018183513.206706-1-marex@denx.de> (raw)

The original fix "spi: stm32: Rate-limit the 'Communication suspended' message"
still leads to "stm32h7_spi_irq_thread: 1696 callbacks suppressed" spew in the
kernel log. Since this 'Communication suspended' message is a debug print, add
RATELIMIT_MSG_ON_RELEASE flag to inhibit the "callbacks suspended" part during
normal operation and only print summary at the end.

Fixes: ea8be08cc9358 ("spi: stm32: Rate-limit the 'Communication suspended' message")
Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: Antonio Borneo <borneo.antonio@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
---
 drivers/spi/spi-stm32.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 6fe617b445a59..3c2fa2e2f94a3 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -886,6 +886,7 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id)
 		static DEFINE_RATELIMIT_STATE(rs,
 					      DEFAULT_RATELIMIT_INTERVAL * 10,
 					      1);
+		ratelimit_set_flags(&rs, RATELIMIT_MSG_ON_RELEASE);
 		if (__ratelimit(&rs))
 			dev_dbg_ratelimited(spi->dev, "Communication suspended\n");
 		if (!spi->cur_usedma && (spi->rx_buf && (spi->rx_len > 0)))
-- 
2.35.1

