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Subject[PATCH 4.14 75/89] tee: optee: Fix compilation issue with nommu
From: Vincenzo Frascino <>

[ 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;
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 <>
[jw: update commit title]
Signed-off-by: Jens Wiklander <>
Signed-off-by: Sasha Levin <>
drivers/tee/optee/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig
index 0126de898036c..108600c6eb564 100644
--- a/drivers/tee/optee/Kconfig
+++ b/drivers/tee/optee/Kconfig
@@ -2,6 +2,7 @@
config OPTEE
tristate "OP-TEE"
depends on HAVE_ARM_SMCCC
+ depends on MMU
This implements the OP-TEE Trusted Execution Environment (TEE)

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