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Message-Id: <20200203161926.370960124@linuxfoundation.org>
Date: Mon, 3 Feb 2020 16:20:17 +0000
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Vincenzo Frascino <vincenzo.frascino@....com>,
Jens Wiklander <jens.wiklander@...aro.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 74/90] tee: optee: Fix compilation issue with nommu
From: Vincenzo Frascino <vincenzo.frascino@....com>
[ Upstream commit 9e0caab8e0f96f0af7d1dd388e62f44184a75372 ]
The optee driver uses specific page table types to verify if a memory
region is normal. These types are not defined in nommu systems. Trying
to compile the driver in these systems results in a build error:
linux/drivers/tee/optee/call.c: In function ‘is_normal_memory’:
linux/drivers/tee/optee/call.c:533:26: error: ‘L_PTE_MT_MASK’ undeclared
(first use in this function); did you mean ‘PREEMPT_MASK’?
return (pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC;
^~~~~~~~~~~~~
PREEMPT_MASK
linux/drivers/tee/optee/call.c:533:26: note: each undeclared identifier is
reported only once for each function it appears in
linux/drivers/tee/optee/call.c:533:44: error: ‘L_PTE_MT_WRITEALLOC’ undeclared
(first use in this function)
return (pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC;
^~~~~~~~~~~~~~~~~~~
Make the optee driver depend on MMU to fix the compilation issue.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
[jw: update commit title]
Signed-off-by: Jens Wiklander <jens.wiklander@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/tee/optee/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig
index d1ad512e17089..3ca71e3812ed4 100644
--- a/drivers/tee/optee/Kconfig
+++ b/drivers/tee/optee/Kconfig
@@ -3,6 +3,7 @@
config OPTEE
tristate "OP-TEE"
depends on HAVE_ARM_SMCCC
+ depends on MMU
help
This implements the OP-TEE Trusted Execution Environment (TEE)
driver.
--
2.20.1
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