* Re: [PATCH v2 2/8] genirq: soft_moderation: add base files, procfs
[not found] <20251116182839.939139-3-lrizzo@google.com>
@ 2025-11-17 11:12 ` kernel test robot
2025-11-17 21:56 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-11-17 11:12 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 warnings:
[auto build test WARNING on tip/irq/core]
[also build test WARNING on tip/x86/core tip/master linus/master v6.18-rc6 next-20251114]
[cannot apply to 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/Luigi-Rizzo/genirq-platform-wide-interrupt-moderation-Documentation-Kconfig-irq_desc/20251117-023148
base: tip/irq/core
patch link: https://lore.kernel.org/r/20251116182839.939139-3-lrizzo%40google.com
patch subject: [PATCH v2 2/8] genirq: soft_moderation: add base files, procfs
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20251117/202511171936.CT5XHXPZ-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511171936.CT5XHXPZ-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/202511171936.CT5XHXPZ-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> kernel/irq/irq_moderation.c:103: warning: ignoring '#pragma clang diagnostic' [-Wunknown-pragmas]
103 | #pragma clang diagnostic error "-Wformat"
In file included from include/linux/uaccess.h:10,
from include/linux/sched/task.h:13,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:34,
from include/linux/seq_file.h:11,
from kernel/irq/irq_moderation.c:8:
In function 'check_copy_size',
inlined from 'copy_from_user' at include/linux/uaccess.h:207:7,
inlined from 'moderation_write' at kernel/irq/irq_moderation.c:169:6:
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();
| ^~~~~~~~~~~~~~~
In function 'check_copy_size',
inlined from 'copy_from_user' at include/linux/uaccess.h:207:7,
inlined from 'mode_write' at kernel/irq/irq_moderation.c:223:6:
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 +103 kernel/irq/irq_moderation.c
102
> 103 #pragma clang diagnostic error "-Wformat"
104 /* Print statistics */
105 static int moderation_show(struct seq_file *p, void *v)
106 {
107 uint delay_us = irq_mod_info.delay_us;
108 int j;
109
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH v2 2/8] genirq: soft_moderation: add base files, procfs
[not found] <20251116182839.939139-3-lrizzo@google.com>
2025-11-17 11:12 ` [PATCH v2 2/8] genirq: soft_moderation: add base files, procfs kernel test robot
@ 2025-11-17 21:56 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-11-17 21:56 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 tip/x86/core tip/master linus/master v6.18-rc6 next-20251117]
[cannot apply to 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/Luigi-Rizzo/genirq-platform-wide-interrupt-moderation-Documentation-Kconfig-irq_desc/20251117-023148
base: tip/irq/core
patch link: https://lore.kernel.org/r/20251116182839.939139-3-lrizzo%40google.com
patch subject: [PATCH v2 2/8] genirq: soft_moderation: add base files, procfs
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20251118/202511180547.snSezdSu-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251118/202511180547.snSezdSu-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/202511180547.snSezdSu-lkp@intel.com/
All errors (new ones prefixed by >>):
kernel/irq/irq_moderation.c:103: warning: ignoring '#pragma clang diagnostic' [-Wunknown-pragmas]
103 | #pragma clang diagnostic error "-Wformat"
In file included from include/linux/uaccess.h:10,
from include/linux/sched/task.h:13,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:34,
from include/linux/seq_file.h:11,
from kernel/irq/irq_moderation.c:8:
In function 'check_copy_size',
inlined from 'copy_from_user' at include/linux/uaccess.h:207:7,
inlined from 'moderation_write' at kernel/irq/irq_moderation.c:169:6:
>> 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();
| ^~~~~~~~~~~~~~~
In function 'check_copy_size',
inlined from 'copy_from_user' at include/linux/uaccess.h:207:7,
inlined from 'mode_write' at kernel/irq/irq_moderation.c:223:6:
>> 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
^ permalink raw reply [flat|nested] 2+ messages in thread