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Differential D35078

pbio: Store softc in si_drv1 for character devices.
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Authored by jhb on Apr 27 2022, 3:40 PM.
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rGf02bf967fcd3: pbio: Store softc in si_drv1 for character devices.
rG0db65574bbb9: pbio: Store softc in si_drv1 for character devices.
Summary

The port number is still stored in the unit (si_drv0) but is the
entire unit value now.

While here, removed checks for NULL softc since those can never happen
from cdevsw routines. This also resulted in the close method becoming
a no-op, so it has been removed.

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rS FreeBSD src repository - subversion
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Buildable 45393
Build 42281: arc lint + arc unit

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sys/
dev/
pbio/
74 lines

Diff 105467

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sys/dev/pbio/pbio.c

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