From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: drivers/gpu/drm/etnaviv/etnaviv_iommu.c:122:15: sparse: sparse: memcpy with byte count of 2097152
Date: Wed, 20 Dec 2023 09:08:34 +0800 [thread overview]
Message-ID: <202312200801.LlrCUdFc-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "only kconfig file changed"
:::::: Manual check reason: "low confidence static check first_new_problem: drivers/gpu/drm/etnaviv/etnaviv_iommu.c:122:15: sparse: sparse: memcpy with byte count of 2097152"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Matthew Wilcox <willy@infradead.org>
CC: Lucas Stach <l.stach@pengutronix.de>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 55cb5f43689d7a9ea5bf35ef050f12334f197347
commit: a20ca6744ba7e683a772bb5f1715e4662342be58 Build etnaviv on non-ARM architectures
date: 4 years, 11 months ago
:::::: branch date: 5 hours ago
:::::: commit date: 4 years, 11 months ago
config: parisc-randconfig-m041-20230821 (https://download.01.org/0day-ci/archive/20231220/202312200801.LlrCUdFc-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231220/202312200801.LlrCUdFc-lkp@intel.com/reproduce)
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>
| Closes: https://lore.kernel.org/r/202312200801.LlrCUdFc-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/etnaviv/etnaviv_iommu.c: note: in included file (through arch/parisc/include/uapi/asm/unistd.h, arch/parisc/include/asm/unistd.h, include/uapi/linux/unistd.h, ...):
./arch/parisc/include/generated/uapi/asm/unistd_32.h:343:41: sparse: sparse: no newline at end of file
>> drivers/gpu/drm/etnaviv/etnaviv_iommu.c:122:15: sparse: sparse: memcpy with byte count of 2097152
vim +122 drivers/gpu/drm/etnaviv/etnaviv_iommu.c
a8c21a5451d831 The etnaviv authors 2015-12-03 116
b670908384bda9 Lucas Stach 2017-09-07 117 static void etnaviv_iommuv1_dump(struct etnaviv_iommu_domain *domain, void *buf)
a8c21a5451d831 The etnaviv authors 2015-12-03 118 {
b670908384bda9 Lucas Stach 2017-09-07 119 struct etnaviv_iommuv1_domain *etnaviv_domain =
b670908384bda9 Lucas Stach 2017-09-07 120 to_etnaviv_domain(domain);
a8c21a5451d831 The etnaviv authors 2015-12-03 121
b670908384bda9 Lucas Stach 2017-09-07 @122 memcpy(buf, etnaviv_domain->pgtable_cpu, PT_SIZE);
a8c21a5451d831 The etnaviv authors 2015-12-03 123 }
a8c21a5451d831 The etnaviv authors 2015-12-03 124
:::::: The code at line 122 was first introduced by commit
:::::: b670908384bda92c42076cf36614ee4f97763253 drm/etnaviv: remove IOMMU dependency
:::::: TO: Lucas Stach <l.stach@pengutronix.de>
:::::: CC: Lucas Stach <l.stach@pengutronix.de>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2023-12-20 1:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-20 1:08 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-12-17 3:51 drivers/gpu/drm/etnaviv/etnaviv_iommu.c:122:15: sparse: sparse: memcpy with byte count of 2097152 kernel test robot
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