LinuxKPI: fix READ_ONCE() -Wcast-equal warnings
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Authored by bz on Apr 19 2023, 9:48 PM.

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jhb
emaste
• hselasky

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rG38f969d41c54: LinuxKPI: fix READ_ONCE() -Wcast-equal warnings
rG74e908b3c63b: LinuxKPI: fix READ_ONCE() -Wcast-equal warnings

Summary

Rather than using ACCESS_ONCE() in READ_ONCE() add a missing cast
to const in order to satisfy -Wcast-equal by gcc.
Sadly we cannot do the same to WRITE_ONCE() which still is very
noisy.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days

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Repository

rG FreeBSD src repository

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Event Timeline

bz created this revision.Apr 19 2023, 9:48 PM

Herald added a subscriber: imp. · View Herald TranscriptApr 19 2023, 9:48 PM

bz requested review of this revision.Apr 19 2023, 9:48 PM

Harbormaster completed remote builds in B51043: Diff 120694.Apr 19 2023, 9:48 PM

Looks good!

This revision is now accepted and ready to land.Apr 19 2023, 9:52 PM

Closed by commit rG74e908b3c63b: LinuxKPI: fix READ_ONCE() -Wcast-equal warnings (authored by bz). · Explain WhyApr 20 2023, 11:52 AM

This revision was automatically updated to reflect the committed changes.

bz added a commit: rG74e908b3c63b: LinuxKPI: fix READ_ONCE() -Wcast-equal warnings.

bz added a commit: rG38f969d41c54: LinuxKPI: fix READ_ONCE() -Wcast-equal warnings.Jun 26 2023, 12:09 PM

Revision Contents
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sys/

compat/

linuxkpi/

common/

include/

linux/

compiler.h

2 lines

Diff 120716

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

LinuxKPI: fix READ_ONCE() -Wcast-equal warningsClosedPublicActions