arm64: cpufeature: Expose get_arm64_ftr_reg() outside cpufeature.c

get_arm64_ftr_reg() returns the properties of a system register based
on its instruction encoding.

This is needed by erratum workaround in cpu_errata.c to modify the
user-space visible view of id registers.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220909165938.3931307-3-james.morse@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index b6a4e97805a4..24f43ad02cd3 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -750,7 +750,7 @@ static struct arm64_ftr_reg *get_arm64_ftr_reg_nowarn(u32 sys_id)
  * returns - Upon success,  matching ftr_reg entry for id.
  *         - NULL on failure but with an WARN_ON().
  */
-static struct arm64_ftr_reg *get_arm64_ftr_reg(u32 sys_id)
+struct arm64_ftr_reg *get_arm64_ftr_reg(u32 sys_id)
 {
 	struct arm64_ftr_reg *reg;