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Differential D59732

LinuxKPI: Add devm_memremap and devm_ioremap_wc functions
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Authored by wulf on Wed, Sep 16, 5:37 PM.
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rG54b5d177aa98: LinuxKPI: Add devm_memremap and devm_ioremap_wc functions
Summary

Required by drm-kmod 6.12.101. Their usage was reverted later though.

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rG FreeBSD src repository
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Buildable 77032
Build 73915: arc lint + arc unit

Event Timeline

wulf created this revision.Wed, Sep 16, 5:37 PM
Herald added subscribers: linuxkpi, imp. · View Herald TranscriptWed, Sep 16, 5:37 PM
wulf requested review of this revision.Wed, Sep 16, 5:37 PM
Harbormaster completed remote builds in B76982: Diff 186893.Wed, Sep 16, 5:37 PM
dumbbell requested changes to this revision.Thu, Sep 17, 5:35 PM

The patch looks good to me. Just one comment about a return value of linuxkpi_devm_memremap.

sys/compat/linuxkpi/common/src/linux_page.c
453–454

On Linux 6.15, they return ERR_PTR(-ENOMEM). Perhaps, it’s different in other versions?

This revision now requires changes to proceed.Thu, Sep 17, 5:35 PM
wulf marked an inline comment as done.Thu, Sep 17, 5:55 PM
wulf added inline comments.
sys/compat/linuxkpi/common/src/linux_page.c
453–454

In Linux 7.3-rc3 ERR_PTR(-ENXIO) is returned: https://elixir.bootlin.com/linux/v7.3-rc3/source/kernel/iomem.c#L153

wulf marked an inline comment as done.Thu, Sep 17, 5:57 PM

oops.

sys/compat/linuxkpi/common/src/linux_page.c
453–454

ooops ERR_PTR(-ENOMEM) really

wulf updated this revision to Diff 186982.Thu, Sep 17, 6:02 PM

return ERR_PTR(-ENOMEM) if devres_alloc() has failed

Harbormaster completed remote builds in B77031: Diff 186982.Thu, Sep 17, 6:02 PM
bz accepted this revision.Thu, Sep 17, 6:12 PM
bz added inline comments.
sys/compat/linuxkpi/common/include/linux/io.h
535

If you wanted you could remove vertical space (blank line) here?

wulf updated this revision to Diff 186984.Thu, Sep 17, 6:16 PM

vertical space (blank line) is removed

Harbormaster completed remote builds in B77032: Diff 186984.Thu, Sep 17, 6:16 PM
dumbbell accepted this revision.Thu, Sep 17, 7:20 PM
This revision is now accepted and ready to land.Thu, Sep 17, 7:20 PM
Closed by commit rG54b5d177aa98: LinuxKPI: Add devm_memremap and devm_ioremap_wc functions (authored by wulf). · Explain WhyFri, Sep 18, 6:52 AM
This revision was automatically updated to reflect the committed changes.
wulf added a commit: rG54b5d177aa98: LinuxKPI: Add devm_memremap and devm_ioremap_wc functions.

Revision Contents
Changeset List

PathSize
sys/
compat/
linuxkpi/
common/
include/
linux/
14 lines
src/
30 lines

Diff 186984

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

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sys/compat/linuxkpi/common/src/linux_page.c

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