From: kernel test robot <lkp@intel.com>
To: Moti Haimovski <mhaimovski@habana.ai>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Oded Gabbay <ogabbay@kernel.org>
Subject: [ogabbay:gaudi2 60/61] drivers/misc/habanalabs/common/mmu/mmu.c:998:19: sparse: sparse: non size-preserving integer to pointer cast
Date: Wed, 29 Jun 2022 07:08:51 +0800 [thread overview]
Message-ID: <202206290743.xHHvh1c5-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git gaudi2
head: f645d04ce63b73c46a8839a621e34a28f1b2a7ba
commit: 374bb7eeacb91bc4e53fc429c17d1d55c0e1fc6b [60/61] habanalabs: add gaudi2 MMU support
config: i386-randconfig-s002 (https://download.01.org/0day-ci/archive/20220629/202206290743.xHHvh1c5-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-31-g4880bd19-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git/commit/?id=374bb7eeacb91bc4e53fc429c17d1d55c0e1fc6b
git remote add ogabbay https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git
git fetch --no-tags ogabbay gaudi2
git checkout 374bb7eeacb91bc4e53fc429c17d1d55c0e1fc6b
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/misc/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/misc/habanalabs/common/mmu/mmu.c:998:19: sparse: sparse: non size-preserving integer to pointer cast
vim +998 drivers/misc/habanalabs/common/mmu/mmu.c
980
981 /**
982 * hl_mmu_hr_write_pte() - write HR PTE
983 * @ctx: pointer to the context structure
984 * @pgt_info: HOP's page table info structure
985 * @phys_pte_addr: phys PTE address
986 * @val: raw PTE data
987 * @hop_table_size: HOP table size
988 */
989 void hl_mmu_hr_write_pte(struct hl_ctx *ctx, struct pgt_info *pgt_info, u64 phys_pte_addr,
990 u64 val, u32 hop_table_size)
991 {
992 /*
993 * The value to write is the phys address of the next hop +
994 * flags at the 12 LSBs.
995 */
996 u64 virt_addr = hl_mmu_hr_pte_phys_to_virt(ctx, pgt_info, phys_pte_addr, hop_table_size);
997
> 998 *((u64 *) virt_addr) = val;
999 }
1000
--
0-DAY CI Kernel Test Service
https://01.org/lkp
reply other threads:[~2022-06-28 23:10 UTC|newest]
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