Re: [PATCH 1/2] iommu/sva: Tighten SVA bind API with explicit flags

kernel test robot
2021-04-13T13:03:16Z

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Hi Jacob,

I love your patch! Yet something to improve:

[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on char-misc/char-misc-testing v5.12-rc7]
[cannot apply to iommu/next next-20210413]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Jacob-Pan/iommu-sva-Tighten-SVA-bind-API-with-explicit-flags/20210409-094521
base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
config: x86_64-randconfig-a016-20200531 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/3b009446e2f451c401cff7a6d4766424acbcc890
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jacob-Pan/iommu-sva-Tighten-SVA-bind-API-with-explicit-flags/20210409-094521
git checkout 3b009446e2f451c401cff7a6d4766424acbcc890
# save the attached .config to linux build tree
make W=1 ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

drivers/dma/idxd/init.c: In function 'idxd_enable_system_pasid':
>> drivers/dma/idxd/init.c:307:10: error: 'IOMMU_SVA_BIND_SUPERVISOR' undeclared (first use in this function)
307 | flags = IOMMU_SVA_BIND_SUPERVISOR;
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/dma/idxd/init.c:307:10: note: each undeclared identifier is reported only once for each function it appears in

vim +/IOMMU_SVA_BIND_SUPERVISOR +307 drivers/dma/idxd/init.c

300
301 static int idxd_enable_system_pasid(struct idxd_device *idxd)
302 {
303 unsigned int flags;
304 unsigned int pasid;
305 struct iommu_sva *sva;
306
> 307 flags = IOMMU_SVA_BIND_SUPERVISOR;
308
309 sva = iommu_sva_bind_device(&idxd->pdev->dev, NULL, flags);
310 if (IS_ERR(sva)) {
311 dev_warn(&idxd->pdev->dev,
312 "iommu sva bind failed: %ld\n", PTR_ERR(sva));
313 return PTR_ERR(sva);
314 }
315
316 pasid = iommu_sva_get_pasid(sva);
317 if (pasid == IOMMU_PASID_INVALID) {
318 iommu_sva_unbind_device(sva);
319 return -ENODEV;
320 }
321
322 idxd->sva = sva;
323 idxd->pasid = pasid;
324 dev_dbg(&idxd->pdev->dev, "system pasid: %u\n", pasid);
325 return 0;
326 }
327

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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