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Retire ISA sound card DMA support

Description

Retire ISA sound card DMA support

As all ISA sound card drivers have been removed sndbuf_dma no longer
serves any purpose.

Reviewed by: mav
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34671

Details

Provenance
emasteAuthored on Mar 18 2022, 4:22 PM
Reviewer
mav
Differential Revision
D34671: Retire ISA sound card drivers
Parents
rGc387c23098d3: tests/sys/fs: remove mips workaround
Branches
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Tags
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