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iommu/vt-d: Remove an unused variable "length" 

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@lca.pw>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Qian Cai 2019-06-17 09:20:27 -04:00 committed by Joerg Roedel
parent 123b2ffc37
commit 42db7c6a40
1 changed files with 0 additions and 3 deletions
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3
drivers/iommu/intel-iommu.c
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@ -4018,7 +4018,6 @@ 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)
@ -4029,8 +4028,6 @@ 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);