* Re: [PATCH v3 04/10] x86/insn: Read and decode insn without crossing the page boundary
[not found] <9704da6a35d62932d464d33b39953fc5b2fd74ea.1723807851.git.legion@kernel.org>
@ 2024-08-17 3:28 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-08-17 3:28 UTC (permalink / raw)
To: Alexey Gladkov, linux-kernel, linux-coco
Cc: oe-kbuild-all, Alexey Gladkov (Intel),
Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen,
H. Peter Anvin, Kirill A. Shutemov, Andrew Morton,
Linux Memory Management List, Yuan Yao, Geert Uytterhoeven,
Yuntao Wang, Kai Huang, Baoquan He, Oleg Nesterov, Tom Lendacky,
Kevin Loughlin, Nikunj A Dadhania, cho, decui, John.Starks
Hi Alexey,
kernel test robot noticed the following build warnings:
[auto build test WARNING on tip/x86/core]
[also build test WARNING on tip/master linus/master v6.11-rc3 next-20240816]
[cannot apply to tip/x86/tdx tip/auto-latest]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Alexey-Gladkov/x86-tdx-Split-MMIO-read-and-write-operations/20240816-222615
base: tip/x86/core
patch link: https://lore.kernel.org/r/9704da6a35d62932d464d33b39953fc5b2fd74ea.1723807851.git.legion%40kernel.org
patch subject: [PATCH v3 04/10] x86/insn: Read and decode insn without crossing the page boundary
config: i386-buildonly-randconfig-001-20240817 (https://download.01.org/0day-ci/archive/20240817/202408171001.feB1A8FN-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240817/202408171001.feB1A8FN-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/oe-kbuild-all/202408171001.feB1A8FN-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> arch/x86/lib/insn-eval.c:1690: warning: Function parameter or struct member 'insn' not described in 'insn_fetch_decode_from_user_common'
>> arch/x86/lib/insn-eval.c:1690: warning: Function parameter or struct member 'inatomic' not described in 'insn_fetch_decode_from_user_common'
>> arch/x86/lib/insn-eval.c:1690: warning: Excess function parameter 'buf' description in 'insn_fetch_decode_from_user_common'
vim +1690 arch/x86/lib/insn-eval.c
1671
1672 /**
1673 * insn_fetch_decode_from_user_common() - Copy and decode instruction bytes
1674 * from user-space memory
1675 * @buf: Array to store the fetched instruction
1676 * @regs: Structure with register values as seen when entering kernel mode
1677 * @inatomic boolean flag whether function is used in atomic context
1678 *
1679 * Gets the linear address of the instruction and copies the instruction bytes
1680 * and decodes the instruction.
1681 *
1682 * Returns:
1683 *
1684 * - 0 on success.
1685 * - -EFAULT if the copy from userspace fails.
1686 * - -EINVAL if the linear address of the instruction could not be calculated.
1687 */
1688 int insn_fetch_decode_from_user_common(struct insn *insn, struct pt_regs *regs,
1689 bool inatomic)
> 1690 {
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] only message in thread