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Differential D36652

LinuxKPI: device.h add devm_kmemdup()
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Authored by bz on Sep 21 2022, 7:38 PM.

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• hselasky
emaste

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Commits

rG3b81d409b97b: LinuxKPI: device.h add devm_kmemdup()
rGe999fbf07762: LinuxKPI: device.h add devm_kmemdup()

Summary

Add devm_kmemdup() as needed by a networking driver.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

bz created this revision.Sep 21 2022, 7:38 PM

Herald added subscribers: emaste, imp. · View Herald TranscriptSep 21 2022, 7:38 PM

bz requested review of this revision.Sep 21 2022, 7:38 PM

Harbormaster completed remote builds in B47470: Diff 110815.Sep 21 2022, 7:38 PM

• hselasky accepted this revision.Sep 22 2022, 11:28 AM

This revision is now accepted and ready to land.Sep 22 2022, 11:28 AM

emaste accepted this revision.Sep 22 2022, 12:39 PM

emaste added inline comments.

sys/compat/linuxkpi/common/include/linux/device.h
612–613	From a quick look it seems `len == 0` isn't allowed in Linux [but I think this is fine].

bz marked an inline comment as done.Sep 22 2022, 2:40 PM

bz added inline comments.

sys/compat/linuxkpi/common/include/linux/device.h
612–613	We could just let it run into the same check at the top of devm_kmalloc() -> lkpi_devres_alloc(). Just trying to void the work.

emaste added inline comments.Sep 22 2022, 3:00 PM

sys/compat/linuxkpi/common/include/linux/device.h
612–613	Yeah, I just mean that AFAICT Linux would crash with `len == 0`, and so it should never be called that way anyway. I'm fine with or without the check.

bz marked 2 inline comments as done.Sep 22 2022, 3:02 PM

bz added inline comments.

sys/compat/linuxkpi/common/include/linux/device.h
612–613	Oh I see. Thanks for clarifying.

Closed by commit rGe999fbf07762: LinuxKPI: device.h add devm_kmemdup() (authored by bz). · Explain WhySep 22 2022, 4:16 PM

This revision was automatically updated to reflect the committed changes.

bz marked an inline comment as done.

bz added a commit: rGe999fbf07762: LinuxKPI: device.h add devm_kmemdup().

bz added a commit: rG3b81d409b97b: LinuxKPI: device.h add devm_kmemdup().Oct 17 2022, 8:42 PM

Revision Contents
Changeset List

Path

Size

sys/

compat/

linuxkpi/

common/

include/

linux/

19 lines

Diff 110851

sys/compat/linuxkpi/common/include/linux/device.h

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