Messages in this thread | | | Date | Wed, 13 Jan 2021 11:48:24 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH v1 0/5] Enable fw_devlink=on by default |
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On 2021-01-13 11:44, Nicolas Saenz Julienne wrote: > On Thu, 2020-12-17 at 19:16 -0800, Saravana Kannan wrote: >> As discussed in LPC 2020, cyclic dependencies in firmware that >> couldn't >> be broken using logic was one of the last remaining reasons >> fw_devlink=on couldn't be set by default. >> >> This series changes fw_devlink so that when a cyclic dependency is >> found >> in firmware, the links between those devices fallback to permissive >> mode >> behavior. This way, the rest of the system still benefits from >> fw_devlink, but the ambiguous cases fallback to permissive mode. >> >> Setting fw_devlink=on by default brings a bunch of benefits >> (currently, >> only for systems with device tree firmware): >> * Significantly cuts down deferred probes. >> * Device probe is effectively attempted in graph order. >> * Makes it much easier to load drivers as modules without having to >> worry about functional dependencies between modules (depmod is still >> needed for symbol dependencies). > > FWIW I don't see any issues with this on Raspberry Pi 4 :).
Keep bragging! ;-)
M. -- Jazz is not dead. It just smells funny...
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