diff mbox series

[v7,09/24] arm64: cpufeature: Export symbol read_sanitised_ftr_reg()

Message ID 20200519175502.2504091-10-jean-philippe@linaro.org
State Superseded
Headers show
Series [v7,01/24] mm: Add a PASID field to mm_struct | expand

Commit Message

Jean-Philippe Brucker May 19, 2020, 5:54 p.m. UTC 
The SMMUv3 driver would like to read the MMFR0 PARANGE field in order to
share CPU page tables with devices. Allow the driver to be built as
module by exporting the read_sanitized_ftr_reg() cpufeature symbol.

Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
 arch/arm64/kernel/cpufeature.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 9fac745aa7bb..5f6adbf4ae89 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -841,6 +841,7 @@  u64 read_sanitised_ftr_reg(u32 id)
 	BUG_ON(!regp);
 	return regp->sys_val;
 }
+EXPORT_SYMBOL_GPL(read_sanitised_ftr_reg);
 
 #define read_sysreg_case(r)	\
 	case r:		return read_sysreg_s(r)