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| author |   Qian Cai <cai@lca.pw> | 2019-06-03 10:05:19 -0400 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2019-06-18 17:31:46 +0200 |
| commit | af88ec3962010e3ac96bcfe5476c9bd68b42477f (patch) | |
| tree | 92e7fd06f7838d5434b95a6d5d3fc5f55d469515 /drivers/iommu | |
| parent | iommu/vt-d: Remove an unused variable "length" (diff) | |
| download | linux-dev-af88ec3962010e3ac96bcfe5476c9bd68b42477f.tar.xz linux-dev-af88ec3962010e3ac96bcfe5476c9bd68b42477f.zip | |
iommu/vt-d: Silence a variable set but not used
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 <cai@lca.pw>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 1b89c3407251..ca0a1d5d2983 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4587,7 +4587,8 @@ 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; |