[PATCH v2] iommu/arm-smmu: Mark qcom_smmu_client_of_match as possibly unused

When CONFIG_OF=n of_match_device() gets pre-processed out of existence
leaving qcom-smmu_client_of_match unused. Mark it as possibly unused to
keep the compiler from warning in that case.

Fixes: 0e764a01015d ("iommu/arm-smmu: Allow client devices to select direct mapping")
Reported-by: kbuild test robot <redacted>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jordan Crouse <redacted>
---

 drivers/iommu/arm-smmu-qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index cf01d0215a39..be4318044f96 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm-smmu-qcom.c

@@ -12,7 +12,7 @@ struct qcom_smmu {
 	struct arm_smmu_device smmu;
 };
 
-static const struct of_device_id qcom_smmu_client_of_match[] = {
+static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,adreno" },
 	{ .compatible = "qcom,mdp4" },
 	{ .compatible = "qcom,mdss" },

-- 
2.17.1


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On Thu, Jun 04, 2020 at 02:39:04PM -0600, Jordan Crouse wrote:

Thanks. Joerg -- can you pick this one up, please? I don't have any other
SMMU fixes pending at the moment.

Cheers,

Will

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On Mon, Jun 08, 2020 at 04:13:08PM +0100, Will Deacon wrote:

On Thu, Jun 04, 2020 at 02:39:04PM -0600, Jordan Crouse wrote:

quoted

When CONFIG_OF=n of_match_device() gets pre-processed out of existence
leaving qcom-smmu_client_of_match unused. Mark it as possibly unused to
keep the compiler from warning in that case.

Fixes: 0e764a01015d ("iommu/arm-smmu: Allow client devices to select direct mapping")
Reported-by: kbuild test robot <redacted>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jordan Crouse <redacted>
---

 drivers/iommu/arm-smmu-qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index cf01d0215a39..be4318044f96 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm-smmu-qcom.c

@@ -12,7 +12,7 @@ struct qcom_smmu {
 	struct arm_smmu_device smmu;
 };
 
-static const struct of_device_id qcom_smmu_client_of_match[] = {
+static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,adreno" },
 	{ .compatible = "qcom,mdp4" },
 	{ .compatible = "qcom,mdss" },

Thanks. Joerg -- can you pick this one up, please? I don't have any other
SMMU fixes pending at the moment.

Cheers,

Will

Quick ping to pick this up for 5.8 fixes.

Thanks,
Jordan

-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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On Mon, Jun 08, 2020 at 04:13:08PM +0100, Will Deacon wrote:

On Thu, Jun 04, 2020 at 02:39:04PM -0600, Jordan Crouse wrote:

quoted

When CONFIG_OF=n of_match_device() gets pre-processed out of existence
leaving qcom-smmu_client_of_match unused. Mark it as possibly unused to
keep the compiler from warning in that case.

Fixes: 0e764a01015d ("iommu/arm-smmu: Allow client devices to select direct mapping")
Reported-by: kbuild test robot <redacted>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jordan Crouse <redacted>
---

 drivers/iommu/arm-smmu-qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c
index cf01d0215a39..be4318044f96 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm-smmu-qcom.c

@@ -12,7 +12,7 @@ struct qcom_smmu {
 	struct arm_smmu_device smmu;
 };
 
-static const struct of_device_id qcom_smmu_client_of_match[] = {
+static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,adreno" },
 	{ .compatible = "qcom,mdp4" },
 	{ .compatible = "qcom,mdss" },

Thanks. Joerg -- can you pick this one up, please? I don't have any other
SMMU fixes pending at the moment.

I can't see this in Joerg's tree or in linux-next. Joerg: did you pick this
one up? (I thought you did, but I can't find it!).

Will

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On Mon, Jul 13, 2020 at 02:33:26PM +0100, Will Deacon wrote:

I can't see this in Joerg's tree or in linux-next. Joerg: did you pick this
one up? (I thought you did, but I can't find it!).

Yes, its in the tree and and will be pushed soon. I'll also send it to
Linus today.


	Joerg

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