9:42 a.m.
BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Lu Baolu <baolu.lu(a)linux.intel.com>
CC: Joerg Roedel <jroedel(a)suse.de>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 521a547ced6477c54b4b0cc206000406c221b4d6
commit: 0c5f6c0d8201a809a6585b07b6263e9db2c874a3 iommu/vt-d: Fix kdump kernels boot
failure with scalable mode
date: 13 days ago
:::::: branch date: 35 hours ago
:::::: commit date: 13 days ago
config: i386-randconfig-m021-20220919
(https://download.01.org/0day-ci/archive/20220920/202209201529.65aJOj82-lk...)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp(a)intel.com>
Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com>
New smatch warnings:
drivers/iommu/intel/iommu.c:230 clear_context_copied() warn: clear_bit() takes a bit
number
drivers/iommu/intel/iommu.c:224 set_context_copied() warn: set_bit() takes a bit number
Old smatch warnings:
drivers/iommu/intel/iommu.c:731 device_to_iommu() error: we previously assumed
'pdev' could be null (see line 704)
vim +230 drivers/iommu/intel/iommu.c
0c5f6c0d8201a8 Lu Baolu 2022-08-23 220
0c5f6c0d8201a8 Lu Baolu 2022-08-23 221 static inline void
0c5f6c0d8201a8 Lu Baolu 2022-08-23 222 set_context_copied(struct intel_iommu *iommu, u8
bus, u8 devfn)
0c5f6c0d8201a8 Lu Baolu 2022-08-23 223 {
0c5f6c0d8201a8 Lu Baolu 2022-08-23 @224 set_bit(((long)bus << 8) | devfn,
iommu->copied_tables);
0c5f6c0d8201a8 Lu Baolu 2022-08-23 225 }
0c5f6c0d8201a8 Lu Baolu 2022-08-23 226
0c5f6c0d8201a8 Lu Baolu 2022-08-23 227 static inline void
0c5f6c0d8201a8 Lu Baolu 2022-08-23 228 clear_context_copied(struct intel_iommu *iommu,
u8 bus, u8 devfn)
0c5f6c0d8201a8 Lu Baolu 2022-08-23 229 {
0c5f6c0d8201a8 Lu Baolu 2022-08-23 @230 clear_bit(((long)bus << 8) | devfn,
iommu->copied_tables);
0c5f6c0d8201a8 Lu Baolu 2022-08-23 231 }
0c5f6c0d8201a8 Lu Baolu 2022-08-23 232
--
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https://01.org/lkp