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net/smc: Add warning about remote memory exposure 

The driver explicitly bypasses APIs to register all memory once a
connection is made, and thus allows remote access to memory.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2017-05-16 09:51:38 +03:00 committed by David S. Miller
parent 263eec9b2a
commit 19a0f7e37c
1 changed files with 4 additions and 0 deletions
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4
net/smc/Kconfig
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@ -8,6 +8,10 @@ config SMC
The Linux implementation of the SMC-R solution is designed as
a separate socket family SMC.
Warning: SMC will expose all memory for remote reads and writes
once a connection is established. Don't enable this option except
for tightly controlled lab environment.
Select this option if you want to run SMC socket applications
config SMC_DIAG