Yo Florian,
On Tue, May 30, 2023 at 01:19:55PM -0700, Florian Fainelli wrote:
From: Pierre Gondois pierre.gondois@arm.com
commit 3522340199cc060b70f0094e3039bdb43c3f6ee1 upstream
fetch_cache_info() tries to get the number of cache leaves/levels for each CPU in order to pre-allocate memory for cacheinfo struct. Allocating this memory later triggers a: 'BUG: sleeping function called from invalid context' in PREEMPT_RT kernels.
If there is no cache related information available in DT or ACPI, fetch_cache_info() fails and an error message is printed: 'Early cacheinfo failed, ret = ...'
Not having cache information should be a valid configuration. Remove the error message if fetch_cache_info() fails with -ENOENT.
Suggested-by: Conor Dooley conor.dooley@microchip.com Link: https://lore.kernel.org/all/20230404-hatred-swimmer-6fecdf33b57a@spud/ Signed-off-by: Pierre Gondois pierre.gondois@arm.com Reviewed-by: Conor Dooley conor.dooley@microchip.com Link: https://lore.kernel.org/r/20230414081453.244787-4-pierre.gondois@arm.com Signed-off-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Florian Fainelli florian.fainelli@broadcom.com
How come this now needs a backport? Did the rest of the series get backported, but not this one since it has no fixes tag?
Cheers, Conor.