* Re: [PATCH-v3 1/3] genirq: Fixed Global Software Interrupt Moderation (GSIM)
[not found] <20251217112128.1401896-2-lrizzo@google.com>
@ 2025-12-21 11:21 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-12-21 11:21 UTC (permalink / raw)
To: Luigi Rizzo, Thomas Gleixner, Marc Zyngier, Luigi Rizzo,
Paolo Abeni, Andrew Morton, Sean Christopherson, Jacob Pan
Cc: oe-kbuild-all, Linux Memory Management List, linux-kernel,
linux-arch, Bjorn Helgaas, Willem de Bruijn
Hi Luigi,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/irq/core]
[also build test ERROR on linus/master v6.19-rc1]
[cannot apply to next-20251219]
[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/Luigi-Rizzo/genirq-Fixed-Global-Software-Interrupt-Moderation-GSIM/20251217-193249
base: tip/irq/core
patch link: https://lore.kernel.org/r/20251217112128.1401896-2-lrizzo%40google.com
patch subject: [PATCH-v3 1/3] genirq: Fixed Global Software Interrupt Moderation (GSIM)
config: um-allyesconfig (https://download.01.org/0day-ci/archive/20251221/202512211933.p2Yg8Zzq-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251221/202512211933.p2Yg8Zzq-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/202512211933.p2Yg8Zzq-lkp@intel.com/
All errors (new ones prefixed by >>):
kernel/irq/irq_moderation.c:141: warning: ignoring '#pragma clang diagnostic' [-Wunknown-pragmas]
141 | #pragma clang diagnostic error "-Wformat"
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:13,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/mm.h:36,
from include/linux/kallsyms.h:13,
from kernel/irq/irq_moderation.c:7:
In function 'check_copy_size',
inlined from 'copy_from_user' at include/linux/uaccess.h:218:7,
inlined from 'mode_write' at kernel/irq/irq_moderation.c:259:6:
>> include/linux/ucopysize.h:54:25: error: call to '__bad_copy_to' declared with attribute error: copy destination size is too small
54 | __bad_copy_to();
| ^~~~~~~~~~~~~~~
vim +/__bad_copy_to +54 include/linux/ucopysize.h
808aac63e2bdf9 Kees Cook 2025-02-28 43
808aac63e2bdf9 Kees Cook 2025-02-28 44 static __always_inline __must_check bool
808aac63e2bdf9 Kees Cook 2025-02-28 45 check_copy_size(const void *addr, size_t bytes, bool is_source)
808aac63e2bdf9 Kees Cook 2025-02-28 46 {
808aac63e2bdf9 Kees Cook 2025-02-28 47 int sz = __builtin_object_size(addr, 0);
808aac63e2bdf9 Kees Cook 2025-02-28 48 if (unlikely(sz >= 0 && sz < bytes)) {
808aac63e2bdf9 Kees Cook 2025-02-28 49 if (!__builtin_constant_p(bytes))
808aac63e2bdf9 Kees Cook 2025-02-28 50 copy_overflow(sz, bytes);
808aac63e2bdf9 Kees Cook 2025-02-28 51 else if (is_source)
808aac63e2bdf9 Kees Cook 2025-02-28 52 __bad_copy_from();
808aac63e2bdf9 Kees Cook 2025-02-28 53 else
808aac63e2bdf9 Kees Cook 2025-02-28 @54 __bad_copy_to();
808aac63e2bdf9 Kees Cook 2025-02-28 55 return false;
808aac63e2bdf9 Kees Cook 2025-02-28 56 }
808aac63e2bdf9 Kees Cook 2025-02-28 57 if (WARN_ON_ONCE(bytes > INT_MAX))
808aac63e2bdf9 Kees Cook 2025-02-28 58 return false;
808aac63e2bdf9 Kees Cook 2025-02-28 59 check_object_size(addr, bytes, is_source);
808aac63e2bdf9 Kees Cook 2025-02-28 60 return true;
808aac63e2bdf9 Kees Cook 2025-02-28 61 }
808aac63e2bdf9 Kees Cook 2025-02-28 62
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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