Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Date | Wed, 10 May 2017 21:11:05 +0200 | Subject | Re: [GIT PULL] TEE driver infrastructure and OP-TEE drivers |
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On Wed, May 10, 2017 at 8:55 PM, Linus Torvalds <torvalds@linux-foundation.org> wrote: > On Tue, May 9, 2017 at 12:05 PM, Arnd Bergmann <arnd@arndb.de> wrote: > > https://lkml.org/lkml/2017/3/10/1277 > > Oh well, that wasn't very useful right now..
Hopefully it comes back eventually. For now, the same contents are also at
https://lwn.net/Articles/716737/
>> TEE driver infrastructure and OP-TEE drivers > > Another note: right now this adds a config question for TEE support, > but the only actual TEE driver has a > > depends on HAVE_ARM_SMCCC > > on it. > > Until we get more TEE drivers, might I suggest that we perhaps make > the TEE config option have > > depends on HAVE_ARM_SMCCC || COMPILE_TEST > > so that the generic tee code still gets the compile test coverage, but > we don't confuse people by asking about infrastructure that they can't > possibly use.. > > Hmm?
Yes, good idea. I've added this patch to the arm-soc fixes branch that already contains a couple of other things you will get in a few days:
From efd467ff4f611d67e9009de2391ce484f9436054 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@arndb.de> Date: Wed, 10 May 2017 21:05:16 +0200 Subject: [PATCH] tee: add ARM_SMCCC dependency
For the moment, the tee subsystem only makes sense in combination with the op-tee driver that depends on ARM_SMCCC, so let's hide the subsystem from users that can't select that.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig index 2330a4eb4e8b..2824398fc5d6 100644 --- a/drivers/tee/Kconfig +++ b/drivers/tee/Kconfig @@ -1,6 +1,7 @@ # Generic Trusted Execution Environment Configuration config TEE tristate "Trusted Execution Environment support" + depends on HAVE_ARM_SMCCC || COMPILE_TEST # until we have more than one driver select DMA_SHARED_BUFFER select GENERIC_ALLOCATOR help
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