Hi Joerg, [auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]
config: ia64-allyesconfig (attached as .config)
reproduce:
wget
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
-O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 75170658f4350889e0d0d404c5bb17179797bd47
# save the attached .config to linux build tree
make.cross ARCH=ia64
All warnings (new ones prefixed by >>):
drivers/iommu/intel-iommu.c: In function 'domain_prepare_identity_map':
>> drivers/iommu/intel-iommu.c:2437:6: warning: unused variable 'ret'
>> [-Wunused-variable]
int ret;
^
vim +/ret +2437 drivers/iommu/intel-iommu.c
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2421
/*
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2422
* RMRR range might have overlap with physical memory range,
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2423
* clear it first
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2424
*/
c5395d5c drivers/pci/intel-iommu.c David Woodhouse 2009-06-28 2425
dma_pte_clear_range(domain, first_vpfn, last_vpfn);
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2426
c5395d5c drivers/pci/intel-iommu.c David Woodhouse 2009-06-28 2427
return domain_pfn_mapping(domain, first_vpfn, first_vpfn,
c5395d5c drivers/pci/intel-iommu.c David Woodhouse 2009-06-28 2428
last_vpfn - first_vpfn + 1,
ba395927 drivers/pci/intel-iommu.c Keshavamurthy, Anil S 2007-10-21 2429
DMA_PTE_READ|DMA_PTE_WRITE);
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2430 }
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2431
75170658 drivers/iommu/intel-iommu.c Joerg Roedel 2015-10-01 2432
static int domain_prepare_identity_map(struct device *dev,
75170658 drivers/iommu/intel-iommu.c Joerg Roedel 2015-10-01 2433
struct dmar_domain *domain,
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2434
unsigned long long start,
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2435
unsigned long long end)
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2436 {
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 @2437
int ret;
b213203e drivers/pci/intel-iommu.c David Woodhouse 2009-06-26 2438
19943b0e drivers/pci/intel-iommu.c David Woodhouse 2009-08-04 2439
/* For _hardware_ passthrough, don't bother. But for software
19943b0e drivers/pci/intel-iommu.c David Woodhouse 2009-08-04 2440
passthrough, we do it anyway -- it may indicate a memory
19943b0e drivers/pci/intel-iommu.c David Woodhouse 2009-08-04 2441
range which is reserved in E820, so which didn't get set
19943b0e drivers/pci/intel-iommu.c David Woodhouse 2009-08-04 2442
up to start with in si_domain */
19943b0e drivers/pci/intel-iommu.c David Woodhouse 2009-08-04 2443
if (domain == si_domain && hw_pass_through) {
9f10e5bf drivers/iommu/intel-iommu.c Joerg Roedel 2015-06-12 2444
pr_warn("Ignoring identity map for HW passthrough device %s [0x%Lx -
0x%Lx]\n",
0b9d9753 drivers/iommu/intel-iommu.c David Woodhouse 2014-03-09 2445
dev_name(dev), start, end);
:::::: The code at line 2437 was first introduced by commit
:::::: b213203e475212a69ad6fedfb73464087e317148 intel-iommu: Create new
iommu_domain_identity_map() function
:::::: TO: David Woodhouse <david.woodho...@intel.com>
:::::: CC: David Woodhouse <david.woodho...@intel.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: Binary data
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