Al Viro b212c322c8 handle the group_source_req options directly ...

Native ->setsockopt() handling of these options (MCAST_..._SOURCE_GROUP
and MCAST_{,UN}BLOCK_SOURCE) consists of copyin + call of a helper that
does the actual work.  The only change needed for ->compat_setsockopt()
is a slightly different copyin - the helpers can be reused as-is.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2020-05-20 20:31:32 -04:00

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