firmware: dmi-sysfs: make pr_info messages rate limited
JIRA: https://issues.redhat.com/browse/RHEL-21581
commit 7d12970f1746d47155f97113ac48b81fd8af8640
Author: Colin Ian King colin.i.king@gmail.com
Date: Tue Nov 29 22:38:55 2022 +0000
firmware: dmi-sysfs: make pr_info messages rate limited
Currently if a process repeat repeatedly reads the dmi sysfs raw event log
/sys/firmware/dmi/entries/15-0/system_event_log/raw_event_log when GPNV
support is missing or using an unknown access method the kernel log gets
spammed with info messages. Make the messages rate limited to reduce the
message spamming. Triggered when running sudo stress-ng --sysfs -t 5m.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20221129223855.1005674-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Prarit Bhargava prarit@redhat.com