6.12-stable review patch. If anyone has any objections, please let me know.
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From: Will Deacon will@kernel.org
commit 5492f0c4085a8fb8820ff974f17b83a7d6dab5a5 upstream.
While testing some io-pgtable changes, I ran into a compiler warning from the Tegra CMDQ driver:
drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:803:23: warning: unused variable 'cmdqv_debugfs_dir' [-Wunused-variable] 803 | static struct dentry *cmdqv_debugfs_dir; | ^~~~~~~~~~~~~~~~~ 1 warning generated.
Guard the variable declaration with CONFIG_IOMMU_DEBUGFS to silence the warning.
Signed-off-by: Will Deacon will@kernel.org Cc: Jiri Slaby jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c +++ b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c @@ -801,7 +801,9 @@ out_fallback: return 0; }
+#ifdef CONFIG_IOMMU_DEBUGFS static struct dentry *cmdqv_debugfs_dir; +#endif
static struct arm_smmu_device * __tegra241_cmdqv_probe(struct arm_smmu_device *smmu, struct resource *res,