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Differential D48488

bus.h: remove unused devop_t typedef
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Authored by mhorne on Thu, Jan 16, 5:22 PM.
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jhb
imp
Summary

Passes tinderbox.

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rG FreeBSD src repository
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Build Status
Buildable 61770
Build 58654: arc lint + arc unit

Event Timeline

mhorne requested review of this revision.Thu, Jan 16, 5:22 PM
mhorne created this revision.
mhorne added a parent revision: D48487: bus.h: remove deprecated struct driver.
mhorne added a child revision: D48489: EARLY_DRIVER_MODULE: use designated initializers.
Harbormaster completed remote builds in B61770: Diff 149357.Thu, Jan 16, 5:22 PM
imp accepted this revision.Thu, Jan 16, 5:30 PM

This has been unused since

commit f7b776917236d24a4ac7aaa19b3595abdd8411f9
Author: Doug Rabson <dfr@FreeBSD.org>
Date:   Sat Apr 8 14:17:18 2000 +0000

    * Factor out the object system from new-bus so that it can be used by
      non-device code.
    * Re-implement the method dispatch to improve efficiency. The new system
      takes about 40ns for a method dispatch on a 300Mhz PII which is only
      10ns slower than a direct function call on the same hardware.

    This changes the new-bus ABI slightly so make sure you re-compile any
    driver modules which you use.

I don't think we're being too hasty removing it. It used to be used a pointer to the compiled ops (method) table.

This revision is now accepted and ready to land.Thu, Jan 16, 5:30 PM
mhorne added a comment.Thu, Jan 16, 5:32 PM
In D48488#1106326, @imp wrote:

This has been unused since

commit f7b776917236d24a4ac7aaa19b3595abdd8411f9
Author: Doug Rabson <dfr@FreeBSD.org>
Date:   Sat Apr 8 14:17:18 2000 +0000

    * Factor out the object system from new-bus so that it can be used by
      non-device code.
    * Re-implement the method dispatch to improve efficiency. The new system
      takes about 40ns for a method dispatch on a 300Mhz PII which is only
      10ns slower than a direct function call on the same hardware.

    This changes the new-bus ABI slightly so make sure you re-compile any
    driver modules which you use.

I don't think we're being too hasty removing it. It used to be used a pointer to the compiled ops (method) table.

Thanks, I will include this info in the commit message.

jhb accepted this revision.Sat, Jan 18, 2:31 PM

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sys/
sys/
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Diff 149357

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sys/sys/bus.h

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