The commit "iommu/vt-d: Probe DMA-capable ACPI name space devices" introduced a compilation warning due to the "iommu" variable in for_each_active_iommu() but never used the for each element, i.e, "drhd->iommu".
drivers/iommu/intel-iommu.c: In function 'probe_acpi_namespace_devices': drivers/iommu/intel-iommu.c:4639:22: warning: variable 'iommu' set but not used [-Wunused-but-set-variable] struct intel_iommu *iommu; Silence the warning the same way as in the commit d3ed71e5cc50 ("drivers/iommu/intel-iommu.c: fix variable 'iommu' set but not used") Signed-off-by: Qian Cai <c...@lca.pw> --- drivers/iommu/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index b431cc6f6ba4..2897354a341a 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4636,7 +4636,8 @@ static int __init platform_optin_force_iommu(void) static int __init probe_acpi_namespace_devices(void) { struct dmar_drhd_unit *drhd; - struct intel_iommu *iommu; + /* To avoid a -Wunused-but-set-variable warning. */ + struct intel_iommu *iommu __maybe_unused; struct device *dev; int i, ret = 0; -- 1.8.3.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu