Hi Stewart, > On 13 Dec 2022, at 6:18 pm, Stewart Hildebrand <[email protected]> > wrote: > > When building with clang 12 and CONFIG_ARM_SMMU_V3=y, we observe the > following build error: > > drivers/passthrough/arm/smmu-v3.c:1408:20: error: unused function > 'arm_smmu_disable_pasid' [-Werror,-Wunused-function] > static inline void arm_smmu_disable_pasid(struct arm_smmu_master *master) { } > ^ > > arm_smmu_disable_pasid is not currently called from anywhere in Xen, but > it is inside a section of code guarded by CONFIG_PCI_ATS, which may be > helpful in the future if the PASID feature is to be implemented. Add the > attribute __maybe_unused to the function. > > Signed-off-by: Stewart Hildebrand <[email protected]>
Reviewed-by: Rahul Singh <[email protected]> Regards, Rahul
