Hi Qian, Good catch, minor comments below. On 2018/12/25 1:20, Qian Cai wrote: > rivers/acpi/arm64/iort.c:880:1: error: expected identifier or '(' before '{' token ^^ drivers > { return NULL; } > ^ > drivers/acpi/arm64/iort.c:879:39: warning: 'iort_fwspec_iommu_ops' used but never defined > static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev); > ^~~~~~~~~~~~~~~~~~~~~ > Signed-off-by: Qian Cai <cai@xxxxxx> > --- > drivers/acpi/arm64/iort.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c > index fdd90ffceb85..5d29783ee5bd 100644 > --- a/drivers/acpi/arm64/iort.c > +++ b/drivers/acpi/arm64/iort.c > @@ -876,7 +876,7 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) > return (resv == its->its_count) ? resv : -ENODEV; > } > #else > -static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev); > +static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev) > { return NULL; } > static inline int iort_add_device_replay(const struct iommu_ops *ops, > struct device *dev) Acked-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> Lorenzo, I think this is 4.21-rc1 material if it's OK for you. Thanks Hanjun