spi: stm32: Print summary 'callbacks suppressed' message

[ Upstream commit 195583504be28df5d608a4677dd796117aea875f ]

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>
Link: https://lore.kernel.org/r/20221018183513.206706-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 9bd3fd1..96a73f9 100644 (file)
--- 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)))