* [dvyukov:dvyukov-prot-kernonly 1/1] include/linux/mman.h:109:67: error: use of undeclared identifier 'PROT_KERNONLY'
@ 2024-11-09 23:56 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-11-09 23:56 UTC (permalink / raw)
To: Dmitry Vyukov; +Cc: llvm, oe-kbuild-all
tree: https://github.com/dvyukov/linux dvyukov-prot-kernonly
head: 37187db99b42dfb9784b42cb759c3f628de0d808
commit: 37187db99b42dfb9784b42cb759c3f628de0d808 [1/1] mm: add PROT_KERNONLY
config: mips-mtx1_defconfig (https://download.01.org/0day-ci/archive/20241110/202411100710.Xsw5WJSG-lkp@intel.com/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241110/202411100710.Xsw5WJSG-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/202411100710.Xsw5WJSG-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from mm/filemap.c:26:
>> include/linux/mman.h:109:67: error: use of undeclared identifier 'PROT_KERNONLY'
return (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_KERNONLY)) == 0;
^
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
_calc_vm_trans(prot, PROT_KERNONLY, VM_KERNONLY) |
^
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:159:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:135:48: note: expanded from macro '_calc_vm_trans'
((bit1) <= (bit2) ? ((x) & (bit1)) * ((bit2) / (bit1)) \
^ ~~~~~~
include/linux/mman.h:159:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
: ((x) & (bit1)) / ((bit1) / (bit2))))
^ ~~~~~~~~~~~~~~~~~
include/linux/mman.h:160:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_STACK, VM_NOHUGEPAGE) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
: ((x) & (bit1)) / ((bit1) / (bit2))))
^ ~~~~~~~~~~~~~~~~~
3 warnings and 7 errors generated.
--
In file included from mm/swap.c:21:
>> include/linux/mman.h:109:67: error: use of undeclared identifier 'PROT_KERNONLY'
return (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_KERNONLY)) == 0;
^
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
_calc_vm_trans(prot, PROT_KERNONLY, VM_KERNONLY) |
^
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:147:30: error: use of undeclared identifier 'PROT_KERNONLY'
include/linux/mman.h:159:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:135:48: note: expanded from macro '_calc_vm_trans'
((bit1) <= (bit2) ? ((x) & (bit1)) * ((bit2) / (bit1)) \
^ ~~~~~~
include/linux/mman.h:159:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
: ((x) & (bit1)) / ((bit1) / (bit2))))
^ ~~~~~~~~~~~~~~~~~
include/linux/mman.h:160:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_STACK, VM_NOHUGEPAGE) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
: ((x) & (bit1)) / ((bit1) / (bit2))))
^ ~~~~~~~~~~~~~~~~~
In file included from mm/swap.c:44:
In file included from include/trace/events/pagemap.h:83:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:7:
include/linux/poll.h:136:27: warning: division by zero is undefined [-Wdivision-by-zero]
M(RDNORM) | M(RDBAND) | M(WRNORM) | M(WRBAND) |
^~~~~~~~~
include/linux/poll.h:134:32: note: expanded from macro 'M'
#define M(X) (__force __poll_t)__MAP(val, POLL##X, (__force __u16)EPOLL##X)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/poll.h:120:51: note: expanded from macro '__MAP'
(from < to ? (v & from) * (to/from) : (v & from) / (from/to))
^ ~~~~~~~~~
include/linux/poll.h:136:39: warning: division by zero is undefined [-Wdivision-by-zero]
M(RDNORM) | M(RDBAND) | M(WRNORM) | M(WRBAND) |
^~~~~~~~~
include/linux/poll.h:134:32: note: expanded from macro 'M'
#define M(X) (__force __poll_t)__MAP(val, POLL##X, (__force __u16)EPOLL##X)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/poll.h:120:51: note: expanded from macro '__MAP'
(from < to ? (v & from) * (to/from) : (v & from) / (from/to))
^ ~~~~~~~~~
5 warnings and 7 errors generated.
vim +/PROT_KERNONLY +109 include/linux/mman.h
99
100 #ifndef arch_validate_prot
101 /*
102 * This is called from mprotect(). PROT_GROWSDOWN and PROT_GROWSUP have
103 * already been masked out.
104 *
105 * Returns true if the prot flags are valid
106 */
107 static inline bool arch_validate_prot(unsigned long prot, unsigned long addr)
108 {
> 109 return (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_KERNONLY)) == 0;
110 }
111 #define arch_validate_prot arch_validate_prot
112 #endif
113
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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