From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com, Dan Carpenter <error27@gmail.com>
Subject: drivers/iommu/amd/io_pgtable_v2.c:355 v2_free_pgtable() warn: can 'pgtable' even be NULL?
Date: Sat, 5 Oct 2024 08:41:08 +0800 [thread overview]
Message-ID: <202410050801.g5aHqBpc-lkp@intel.com> (raw)
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
CC: Joerg Roedel <jroedel@suse.de>
CC: Vasant Hegde <vasant.hegde@amd.com>
CC: Jason Gunthorpe <jgg@nvidia.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ac308609567d31fe44be80ab757a5ddf062362ef
commit: e8e1aac33458d80545e5ad37b2a3e4243eee278e iommu/amd: Refactor helper function for setting / clearing GCR3
date: 8 months ago
:::::: branch date: 5 hours ago
:::::: commit date: 8 months ago
config: x86_64-randconfig-161-20241005 (https://download.01.org/0day-ci/archive/20241005/202410050801.g5aHqBpc-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202410050801.g5aHqBpc-lkp@intel.com/
smatch warnings:
drivers/iommu/amd/io_pgtable_v2.c:355 v2_free_pgtable() warn: can 'pgtable' even be NULL?
vim +/pgtable +355 drivers/iommu/amd/io_pgtable_v2.c
aaac38f614871d Vasant Hegde 2022-08-25 350
aaac38f614871d Vasant Hegde 2022-08-25 351 static void v2_free_pgtable(struct io_pgtable *iop)
aaac38f614871d Vasant Hegde 2022-08-25 352 {
aaac38f614871d Vasant Hegde 2022-08-25 353 struct amd_io_pgtable *pgtable = container_of(iop, struct amd_io_pgtable, iop);
aaac38f614871d Vasant Hegde 2022-08-25 354
e8e1aac33458d8 Suravee Suthikulpanit 2024-02-05 @355 if (!pgtable || !pgtable->pgd)
aaac38f614871d Vasant Hegde 2022-08-25 356 return;
aaac38f614871d Vasant Hegde 2022-08-25 357
aaac38f614871d Vasant Hegde 2022-08-25 358 /* Free page table */
aaac38f614871d Vasant Hegde 2022-08-25 359 free_pgtable(pgtable->pgd, get_pgtable_level());
e8e1aac33458d8 Suravee Suthikulpanit 2024-02-05 360 pgtable->pgd = NULL;
aaac38f614871d Vasant Hegde 2022-08-25 361 }
aaac38f614871d Vasant Hegde 2022-08-25 362
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2024-10-05 0:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-05 0:41 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2024-12-14 13:32 drivers/iommu/amd/io_pgtable_v2.c:355 v2_free_pgtable() warn: can 'pgtable' even be NULL? kernel test robot
2024-12-10 10:00 kernel test robot
2024-11-07 3:39 kernel test robot
2024-03-31 9:29 kernel test robot
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