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    SubjectRe: [PATCH v1 0/5] Enable fw_devlink=on by default
    On Thu, Dec 17, 2020 at 07:16:58PM -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).
    >
    > Greg/Rafael,
    >
    > Can we get this pulled into 5.11-rc1 or -rc2 soon please? I expect to
    > see some issues due to device drivers that aren't following best
    > practices (they don't expose the device to driver core). Want to
    > identify those early on and try to have them fixed before 5.11 release.
    > See [1] for an example of such a case.

    Now queued up in my tree, will show up in linux-next in a few days,
    let's see what breaks! :)

    And it is scheduled for 5.12-rc1, not 5.11, sorry.

    thanks,

    greg k-h

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