Matt Johnston 63ed1aab3d mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control ...

This change adds a couple of new ioctls for mctp sockets:
SIOCMCTPALLOCTAG and SIOCMCTPDROPTAG.  These ioctls provide facilities
for explicit allocation / release of tags, overriding the automatic
allocate-on-send/release-on-reply and timeout behaviours. This allows
userspace more control over messages that may not fit a simple
request/response model.

In order to indicate a pre-allocated tag to the sendmsg() syscall, we
introduce a new flag to the struct sockaddr_mctp.smctp_tag value:
MCTP_TAG_PREALLOC.

Additional changes from Jeremy Kerr <[email protected]>.

Contains a fix that was:
Reported-by: kernel test robot <[email protected]>

Signed-off-by: Matt Johnston <[email protected]>
Signed-off-by: Jeremy Kerr <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2022-02-09 12:00:11 +00:00

..

events

mctp: Add SIOCMCTP{ALLOC,DROP}TAG ioctls for tag control

2022-02-09 12:00:11 +00:00

bpf_probe.h

tracing: Add '__rel_loc' using trace event macros

2021-12-06 15:37:21 -05:00

define_trace.h

…

perf.h

tracing/perf: Avoid -Warray-bounds warning for __rel_loc macro

2022-01-27 19:15:45 -05:00

syscall.h

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trace_events.h

tracing/perf: Avoid -Warray-bounds warning for __rel_loc macro

2022-01-27 19:15:45 -05:00