[PATCH] iommu/intel: remove an unused variable "length"

From: Qian Cai
Date: Mon Jun 17 2019 - 09:25:31 EST


The linux-next commit "iommu/vt-d: Duplicate iommu_resv_region objects
per device list" [1] left out an unused variable,

drivers/iommu/intel-iommu.c: In function 'dmar_parse_one_rmrr':
drivers/iommu/intel-iommu.c:4014:9: warning: variable 'length' set but
not used [-Wunused-but-set-variable]

[1] https://lore.kernel.org/patchwork/patch/1083073/

Signed-off-by: Qian Cai <cai@xxxxxx>
---
drivers/iommu/intel-iommu.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 478ac186570b..d86d4ee5cc78 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4011,7 +4011,6 @@ int __init dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg)
{
struct acpi_dmar_reserved_memory *rmrr;
struct dmar_rmrr_unit *rmrru;
- size_t length;

rmrru = kzalloc(sizeof(*rmrru), GFP_KERNEL);
if (!rmrru)
@@ -4022,8 +4021,6 @@ int __init dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg)
rmrru->base_address = rmrr->base_address;
rmrru->end_address = rmrr->end_address;

- length = rmrr->end_address - rmrr->base_address + 1;
-
rmrru->devices = dmar_alloc_dev_scope((void *)(rmrr + 1),
((void *)rmrr) + rmrr->header.length,
&rmrru->devices_cnt);
--
2.20.1 (Apple Git-117)