[SRU][F:bluefield][PATCH v0 1/1] UBUNTU: SAUCE: mlx-trio: Use rate-limited prints in interrupt handler

[Shravan Kumar Ramani]

BugLink: https://bugs.launchpad.net/bugs/1926424

The mlx-trio module's IRQ handler prints errors and additional debug info in case of errors.
However, these prints can be excessive in certain cases, thereby interfering with other functions.
This patch limits the message amount.

SRU Justification:

[Impact]
In cases where the mlx-trio module continuously receives interrupts, it prints a lot of messages which can potentially affect the console output and clutter dmesg logs.

[Fix]
This commit calls dev_err_ratelimited() instead of dev_err() to limit the amount of messages.

[Test Case]
When TRIO receives a bunch of PIO completion errors or PCIe link disabled errors, a ton of error messages from the IRQ handler can be seen, which has been limited by this patch.

[Regression Potential]
Regression potential can be considered minimum since the patch does not change any functions of the driver, but merely makes the error log more readable.

Shravan Kumar Ramani (1):
  UBUNTU: SAUCE: mlx-trio: Use rate-limited prints in interrupt handler

 drivers/platform/mellanox/mlx-trio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.1.2