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* [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2021-12-29  6:30 ` kernel test robot
  0 siblings, 0 replies; 10+ messages in thread
From: kernel test robot @ 2021-12-29  6:30 UTC (permalink / raw)
  To: Rafael J. Wysocki; +Cc: linux-pm, devel, linux-acpi

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge
branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge

Warning reports:

https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp@intel.com

Warning in current branch:

drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]

Warning ids grouped by kconfigs:

clang_recent_errors
|-- i386-randconfig-a001-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a002-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a003-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a004-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a005-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a006-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a011-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a013-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a014-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a015-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a016-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a001-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a002-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a003-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a004-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a005-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a006-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a011-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a013-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a014-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a015-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a016-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-r012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
`-- x86_64-randconfig-r024-20211228
    `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior

elapsed time: 725m

configs tested: 104
configs skipped: 3

gcc tested configs:
arm                              allyesconfig
arm                              allmodconfig
arm                                 defconfig
arm64                               defconfig
arm64                            allyesconfig
i386                 randconfig-c001-20211228
arm                           sama7_defconfig
arc                        nsim_700_defconfig
arm                            qcom_defconfig
arm                          pxa3xx_defconfig
powerpc                   bluestone_defconfig
mips                      bmips_stb_defconfig
arm                             ezx_defconfig
sh                           se7343_defconfig
powerpc                     skiroot_defconfig
arm                         lpc18xx_defconfig
arm                       imx_v6_v7_defconfig
arm                          pxa910_defconfig
powerpc                  mpc885_ads_defconfig
powerpc                     pq2fads_defconfig
arm                           sama5_defconfig
arm                        shmobile_defconfig
arc                    vdk_hs38_smp_defconfig
csky                             alldefconfig
riscv             nommu_k210_sdcard_defconfig
arm                  randconfig-c002-20211229
ia64                                defconfig
ia64                             allmodconfig
ia64                             allyesconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nds32                             allnoconfig
nios2                               defconfig
arc                              allyesconfig
csky                                defconfig
alpha                               defconfig
nds32                               defconfig
alpha                            allyesconfig
nios2                            allyesconfig
arc                                 defconfig
sh                               allmodconfig
h8300                            allyesconfig
xtensa                           allyesconfig
parisc                              defconfig
s390                             allmodconfig
parisc                           allyesconfig
s390                                defconfig
s390                             allyesconfig
i386                             allyesconfig
sparc                               defconfig
i386                                defconfig
i386                   debian-10.3-kselftests
i386                              debian-10.3
sparc                            allyesconfig
mips                             allyesconfig
mips                             allmodconfig
powerpc                           allnoconfig
powerpc                          allmodconfig
powerpc                          allyesconfig
arc                  randconfig-r043-20211228
riscv                    nommu_k210_defconfig
riscv                            allyesconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_defconfig
riscv                            allmodconfig
um                           x86_64_defconfig
um                             i386_defconfig
x86_64                           allyesconfig
x86_64                              defconfig
x86_64                               rhel-8.3
x86_64                          rhel-8.3-func
x86_64                                  kexec
x86_64                    rhel-8.3-kselftests

clang tested configs:
x86_64               randconfig-a001-20211229
x86_64               randconfig-a003-20211229
x86_64               randconfig-a004-20211229
x86_64               randconfig-a002-20211229
x86_64               randconfig-a005-20211229
x86_64               randconfig-a006-20211229
i386                 randconfig-a002-20211229
i386                 randconfig-a003-20211229
i386                 randconfig-a001-20211229
i386                 randconfig-a005-20211229
i386                 randconfig-a006-20211229
i386                 randconfig-a004-20211229
x86_64               randconfig-a013-20211228
x86_64               randconfig-a012-20211228
x86_64               randconfig-a011-20211228
x86_64               randconfig-a016-20211228
x86_64               randconfig-a015-20211228
x86_64               randconfig-a014-20211228
i386                 randconfig-a012-20211228
i386                 randconfig-a011-20211228
i386                 randconfig-a013-20211228
i386                 randconfig-a016-20211228
i386                 randconfig-a014-20211228
i386                 randconfig-a015-20211228
hexagon              randconfig-r041-20211228
riscv                randconfig-r042-20211228
s390                 randconfig-r044-20211228
hexagon              randconfig-r045-20211228

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2021-12-29  6:30 ` kernel test robot
  0 siblings, 0 replies; 10+ messages in thread
From: kernel test robot @ 2021-12-29  6:30 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 9759 bytes --]

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge
branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge

Warning reports:

https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp(a)intel.com

Warning in current branch:

drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]

Warning ids grouped by kconfigs:

clang_recent_errors
|-- i386-randconfig-a001-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a002-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a003-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a004-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a005-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a006-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a011-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a013-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a014-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a015-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a016-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a001-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a002-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a003-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a004-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a005-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a006-20211229
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a011-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a013-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a014-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a015-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a016-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-r012-20211228
|   `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
`-- x86_64-randconfig-r024-20211228
    `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior

elapsed time: 725m

configs tested: 104
configs skipped: 3

gcc tested configs:
arm                              allyesconfig
arm                              allmodconfig
arm                                 defconfig
arm64                               defconfig
arm64                            allyesconfig
i386                 randconfig-c001-20211228
arm                           sama7_defconfig
arc                        nsim_700_defconfig
arm                            qcom_defconfig
arm                          pxa3xx_defconfig
powerpc                   bluestone_defconfig
mips                      bmips_stb_defconfig
arm                             ezx_defconfig
sh                           se7343_defconfig
powerpc                     skiroot_defconfig
arm                         lpc18xx_defconfig
arm                       imx_v6_v7_defconfig
arm                          pxa910_defconfig
powerpc                  mpc885_ads_defconfig
powerpc                     pq2fads_defconfig
arm                           sama5_defconfig
arm                        shmobile_defconfig
arc                    vdk_hs38_smp_defconfig
csky                             alldefconfig
riscv             nommu_k210_sdcard_defconfig
arm                  randconfig-c002-20211229
ia64                                defconfig
ia64                             allmodconfig
ia64                             allyesconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nds32                             allnoconfig
nios2                               defconfig
arc                              allyesconfig
csky                                defconfig
alpha                               defconfig
nds32                               defconfig
alpha                            allyesconfig
nios2                            allyesconfig
arc                                 defconfig
sh                               allmodconfig
h8300                            allyesconfig
xtensa                           allyesconfig
parisc                              defconfig
s390                             allmodconfig
parisc                           allyesconfig
s390                                defconfig
s390                             allyesconfig
i386                             allyesconfig
sparc                               defconfig
i386                                defconfig
i386                   debian-10.3-kselftests
i386                              debian-10.3
sparc                            allyesconfig
mips                             allyesconfig
mips                             allmodconfig
powerpc                           allnoconfig
powerpc                          allmodconfig
powerpc                          allyesconfig
arc                  randconfig-r043-20211228
riscv                    nommu_k210_defconfig
riscv                            allyesconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_defconfig
riscv                            allmodconfig
um                           x86_64_defconfig
um                             i386_defconfig
x86_64                           allyesconfig
x86_64                              defconfig
x86_64                               rhel-8.3
x86_64                          rhel-8.3-func
x86_64                                  kexec
x86_64                    rhel-8.3-kselftests

clang tested configs:
x86_64               randconfig-a001-20211229
x86_64               randconfig-a003-20211229
x86_64               randconfig-a004-20211229
x86_64               randconfig-a002-20211229
x86_64               randconfig-a005-20211229
x86_64               randconfig-a006-20211229
i386                 randconfig-a002-20211229
i386                 randconfig-a003-20211229
i386                 randconfig-a001-20211229
i386                 randconfig-a005-20211229
i386                 randconfig-a006-20211229
i386                 randconfig-a004-20211229
x86_64               randconfig-a013-20211228
x86_64               randconfig-a012-20211228
x86_64               randconfig-a011-20211228
x86_64               randconfig-a016-20211228
x86_64               randconfig-a015-20211228
x86_64               randconfig-a014-20211228
i386                 randconfig-a012-20211228
i386                 randconfig-a011-20211228
i386                 randconfig-a013-20211228
i386                 randconfig-a016-20211228
i386                 randconfig-a014-20211228
i386                 randconfig-a015-20211228
hexagon              randconfig-r041-20211228
riscv                randconfig-r042-20211228
s390                 randconfig-r044-20211228
hexagon              randconfig-r045-20211228

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

^ permalink raw reply	[flat|nested] 10+ messages in thread

* RE: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-03 15:57   ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-03 15:57 UTC (permalink / raw)
  To: lkp, Rafael J. Wysocki; +Cc: linux-pm, devel, linux-acpi

Are these new warnings, or legacy warnings?


-----Original Message-----
From: kernel test robot <lkp@intel.com> 
Sent: Tuesday, December 28, 2021 10:30 PM
To: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: linux-pm@vger.kernel.org; devel@acpica.org; linux-acpi@vger.kernel.org
Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge

Warning reports:

https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp@intel.com

Warning in current branch:

drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]

Warning ids grouped by kconfigs:

clang_recent_errors
|-- i386-randconfig-a001-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a002-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a003-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a004-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a005-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a006-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a011-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a013-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a014-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a015-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a016-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a001-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a002-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a003-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a004-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a005-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a006-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a011-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a013-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a014-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a015-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a016-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-r012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
`-- x86_64-randconfig-r024-20211228
    `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior

elapsed time: 725m

configs tested: 104
configs skipped: 3

gcc tested configs:
arm                              allyesconfig
arm                              allmodconfig
arm                                 defconfig
arm64                               defconfig
arm64                            allyesconfig
i386                 randconfig-c001-20211228
arm                           sama7_defconfig
arc                        nsim_700_defconfig
arm                            qcom_defconfig
arm                          pxa3xx_defconfig
powerpc                   bluestone_defconfig
mips                      bmips_stb_defconfig
arm                             ezx_defconfig
sh                           se7343_defconfig
powerpc                     skiroot_defconfig
arm                         lpc18xx_defconfig
arm                       imx_v6_v7_defconfig
arm                          pxa910_defconfig
powerpc                  mpc885_ads_defconfig
powerpc                     pq2fads_defconfig
arm                           sama5_defconfig
arm                        shmobile_defconfig
arc                    vdk_hs38_smp_defconfig
csky                             alldefconfig
riscv             nommu_k210_sdcard_defconfig
arm                  randconfig-c002-20211229
ia64                                defconfig
ia64                             allmodconfig
ia64                             allyesconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nds32                             allnoconfig
nios2                               defconfig
arc                              allyesconfig
csky                                defconfig
alpha                               defconfig
nds32                               defconfig
alpha                            allyesconfig
nios2                            allyesconfig
arc                                 defconfig
sh                               allmodconfig
h8300                            allyesconfig
xtensa                           allyesconfig
parisc                              defconfig
s390                             allmodconfig
parisc                           allyesconfig
s390                                defconfig
s390                             allyesconfig
i386                             allyesconfig
sparc                               defconfig
i386                                defconfig
i386                   debian-10.3-kselftests
i386                              debian-10.3
sparc                            allyesconfig
mips                             allyesconfig
mips                             allmodconfig
powerpc                           allnoconfig
powerpc                          allmodconfig
powerpc                          allyesconfig
arc                  randconfig-r043-20211228
riscv                    nommu_k210_defconfig
riscv                            allyesconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_defconfig
riscv                            allmodconfig
um                           x86_64_defconfig
um                             i386_defconfig
x86_64                           allyesconfig
x86_64                              defconfig
x86_64                               rhel-8.3
x86_64                          rhel-8.3-func
x86_64                                  kexec
x86_64                    rhel-8.3-kselftests

clang tested configs:
x86_64               randconfig-a001-20211229
x86_64               randconfig-a003-20211229
x86_64               randconfig-a004-20211229
x86_64               randconfig-a002-20211229
x86_64               randconfig-a005-20211229
x86_64               randconfig-a006-20211229
i386                 randconfig-a002-20211229
i386                 randconfig-a003-20211229
i386                 randconfig-a001-20211229
i386                 randconfig-a005-20211229
i386                 randconfig-a006-20211229
i386                 randconfig-a004-20211229
x86_64               randconfig-a013-20211228
x86_64               randconfig-a012-20211228
x86_64               randconfig-a011-20211228
x86_64               randconfig-a016-20211228
x86_64               randconfig-a015-20211228
x86_64               randconfig-a014-20211228
i386                 randconfig-a012-20211228
i386                 randconfig-a011-20211228
i386                 randconfig-a013-20211228
i386                 randconfig-a016-20211228
i386                 randconfig-a014-20211228
i386                 randconfig-a015-20211228
hexagon              randconfig-r041-20211228
riscv                randconfig-r042-20211228
s390                 randconfig-r044-20211228
hexagon              randconfig-r045-20211228

---
0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
_______________________________________________
Devel mailing list -- devel@acpica.org
To unsubscribe send an email to devel-leave@acpica.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Devel] Re: [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-03 15:57   ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-03 15:57 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 10515 bytes --]

Are these new warnings, or legacy warnings?


-----Original Message-----
From: kernel test robot <lkp(a)intel.com> 
Sent: Tuesday, December 28, 2021 10:30 PM
To: Rafael J. Wysocki <rjw(a)rjwysocki.net>
Cc: linux-pm(a)vger.kernel.org; devel(a)acpica.org; linux-acpi(a)vger.kernel.org
Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge

Warning reports:

https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp(a)intel.com

Warning in current branch:

drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]

Warning ids grouped by kconfigs:

clang_recent_errors
|-- i386-randconfig-a001-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a002-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a003-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a004-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a005-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a006-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a011-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a013-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a014-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a015-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- i386-randconfig-a016-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a001-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a002-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a003-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a004-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a005-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a006-20211229
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a011-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a013-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a014-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a015-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-a016-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
|-- x86_64-randconfig-r012-20211228
|   `-- 
|drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
|ith-a-null-pointer-has-undefined-behavior
`-- x86_64-randconfig-r024-20211228
    `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior

elapsed time: 725m

configs tested: 104
configs skipped: 3

gcc tested configs:
arm                              allyesconfig
arm                              allmodconfig
arm                                 defconfig
arm64                               defconfig
arm64                            allyesconfig
i386                 randconfig-c001-20211228
arm                           sama7_defconfig
arc                        nsim_700_defconfig
arm                            qcom_defconfig
arm                          pxa3xx_defconfig
powerpc                   bluestone_defconfig
mips                      bmips_stb_defconfig
arm                             ezx_defconfig
sh                           se7343_defconfig
powerpc                     skiroot_defconfig
arm                         lpc18xx_defconfig
arm                       imx_v6_v7_defconfig
arm                          pxa910_defconfig
powerpc                  mpc885_ads_defconfig
powerpc                     pq2fads_defconfig
arm                           sama5_defconfig
arm                        shmobile_defconfig
arc                    vdk_hs38_smp_defconfig
csky                             alldefconfig
riscv             nommu_k210_sdcard_defconfig
arm                  randconfig-c002-20211229
ia64                                defconfig
ia64                             allmodconfig
ia64                             allyesconfig
m68k                             allmodconfig
m68k                                defconfig
m68k                             allyesconfig
nds32                             allnoconfig
nios2                               defconfig
arc                              allyesconfig
csky                                defconfig
alpha                               defconfig
nds32                               defconfig
alpha                            allyesconfig
nios2                            allyesconfig
arc                                 defconfig
sh                               allmodconfig
h8300                            allyesconfig
xtensa                           allyesconfig
parisc                              defconfig
s390                             allmodconfig
parisc                           allyesconfig
s390                                defconfig
s390                             allyesconfig
i386                             allyesconfig
sparc                               defconfig
i386                                defconfig
i386                   debian-10.3-kselftests
i386                              debian-10.3
sparc                            allyesconfig
mips                             allyesconfig
mips                             allmodconfig
powerpc                           allnoconfig
powerpc                          allmodconfig
powerpc                          allyesconfig
arc                  randconfig-r043-20211228
riscv                    nommu_k210_defconfig
riscv                            allyesconfig
riscv                    nommu_virt_defconfig
riscv                             allnoconfig
riscv                               defconfig
riscv                          rv32_defconfig
riscv                            allmodconfig
um                           x86_64_defconfig
um                             i386_defconfig
x86_64                           allyesconfig
x86_64                              defconfig
x86_64                               rhel-8.3
x86_64                          rhel-8.3-func
x86_64                                  kexec
x86_64                    rhel-8.3-kselftests

clang tested configs:
x86_64               randconfig-a001-20211229
x86_64               randconfig-a003-20211229
x86_64               randconfig-a004-20211229
x86_64               randconfig-a002-20211229
x86_64               randconfig-a005-20211229
x86_64               randconfig-a006-20211229
i386                 randconfig-a002-20211229
i386                 randconfig-a003-20211229
i386                 randconfig-a001-20211229
i386                 randconfig-a005-20211229
i386                 randconfig-a006-20211229
i386                 randconfig-a004-20211229
x86_64               randconfig-a013-20211228
x86_64               randconfig-a012-20211228
x86_64               randconfig-a011-20211228
x86_64               randconfig-a016-20211228
x86_64               randconfig-a015-20211228
x86_64               randconfig-a014-20211228
i386                 randconfig-a012-20211228
i386                 randconfig-a011-20211228
i386                 randconfig-a013-20211228
i386                 randconfig-a016-20211228
i386                 randconfig-a014-20211228
i386                 randconfig-a015-20211228
hexagon              randconfig-r041-20211228
riscv                randconfig-r042-20211228
s390                 randconfig-r044-20211228
hexagon              randconfig-r045-20211228

---
0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
_______________________________________________
Devel mailing list -- devel(a)acpica.org
To unsubscribe send an email to devel-leave(a)acpica.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-03 16:49     ` Rafael J. Wysocki
  0 siblings, 0 replies; 10+ messages in thread
From: Rafael J. Wysocki @ 2022-01-03 16:49 UTC (permalink / raw)
  To: Moore, Robert
  Cc: lkp, Rafael J. Wysocki, linux-pm, devel, linux-acpi, Arnd Bergmann

[-- Attachment #1: Type: text/plain, Size: 11257 bytes --]

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore@intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro,
ACPI_PTR_DIFF(), has been used for defining a new one,
ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a
new way.

I guess this could be addressed by applying the Arnd's patch at
https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd@kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp@intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: linux-pm@vger.kernel.org; devel@acpica.org; linux-acpi@vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp@intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> _______________________________________________
> Devel mailing list -- devel@acpica.org
> To unsubscribe send an email to devel-leave@acpica.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

[-- Attachment #2: acpica-build.patch --]
[-- Type: text/x-patch, Size: 1251 bytes --]

---
 include/acpi/actypes.h          |    4 ++++
 include/acpi/platform/aclinux.h |    5 +++++
 2 files changed, 9 insertions(+)

Index: linux-pm/include/acpi/platform/aclinux.h
===================================================================
--- linux-pm.orig/include/acpi/platform/aclinux.h
+++ linux-pm/include/acpi/platform/aclinux.h
@@ -213,4 +213,9 @@
 
 #endif				/* __KERNEL__ */
 
+#define acpi_uintptr_t		uintptr_t
+
+#define ACPI_TO_INTEGER(p)	((uintptr_t)(p))
+#define ACPI_OFFSET(d, f)	offsetof(d, f)
+
 #endif				/* __ACLINUX_H__ */
Index: linux-pm/include/acpi/actypes.h
===================================================================
--- linux-pm.orig/include/acpi/actypes.h
+++ linux-pm/include/acpi/actypes.h
@@ -507,8 +507,12 @@ typedef u64 acpi_integer;
 /* Pointer/Integer type conversions */
 
 #define ACPI_TO_POINTER(i)              ACPI_CAST_PTR (void, (acpi_size) (i))
+#ifndef ACPI_TO_INTEGER
 #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) 0)
+#endif
+#ifndef ACPI_OFFSET
 #define ACPI_OFFSET(d, f)               ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)
+#endif
 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
 
 /* Optimizations for 4-character (32-bit) acpi_name manipulation */

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Devel] Re: [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-03 16:49     ` Rafael J. Wysocki
  0 siblings, 0 replies; 10+ messages in thread
From: Rafael J. Wysocki @ 2022-01-03 16:49 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 11537 bytes --]

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore(a)intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro,
ACPI_PTR_DIFF(), has been used for defining a new one,
ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a
new way.

I guess this could be addressed by applying the Arnd's patch at
https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd(a)kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp(a)intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw(a)rjwysocki.net>
> Cc: linux-pm(a)vger.kernel.org; devel(a)acpica.org; linux-acpi(a)vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp(a)intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-w
> |ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `-- drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
> _______________________________________________
> Devel mailing list -- devel(a)acpica.org
> To unsubscribe send an email to devel-leave(a)acpica.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: acpica-build.patch --]
[-- Type: text/x-patch, Size: 1251 bytes --]

---
 include/acpi/actypes.h          |    4 ++++
 include/acpi/platform/aclinux.h |    5 +++++
 2 files changed, 9 insertions(+)

Index: linux-pm/include/acpi/platform/aclinux.h
===================================================================
--- linux-pm.orig/include/acpi/platform/aclinux.h
+++ linux-pm/include/acpi/platform/aclinux.h
@@ -213,4 +213,9 @@
 
 #endif				/* __KERNEL__ */
 
+#define acpi_uintptr_t		uintptr_t
+
+#define ACPI_TO_INTEGER(p)	((uintptr_t)(p))
+#define ACPI_OFFSET(d, f)	offsetof(d, f)
+
 #endif				/* __ACLINUX_H__ */
Index: linux-pm/include/acpi/actypes.h
===================================================================
--- linux-pm.orig/include/acpi/actypes.h
+++ linux-pm/include/acpi/actypes.h
@@ -507,8 +507,12 @@ typedef u64 acpi_integer;
 /* Pointer/Integer type conversions */
 
 #define ACPI_TO_POINTER(i)              ACPI_CAST_PTR (void, (acpi_size) (i))
+#ifndef ACPI_TO_INTEGER
 #define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) 0)
+#endif
+#ifndef ACPI_OFFSET
 #define ACPI_OFFSET(d, f)               ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)
+#endif
 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
 
 /* Optimizations for 4-character (32-bit) acpi_name manipulation */

^ permalink raw reply	[flat|nested] 10+ messages in thread

* RE: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-04 17:22       ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-04 17:22 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: lkp, Rafael J. Wysocki, linux-pm, devel, linux-acpi, Arnd Bergmann

Rafael,
Yes, it looks like this patch may work OK.


-----Original Message-----
From: Rafael J. Wysocki <rafael@kernel.org> 
Sent: Monday, January 03, 2022 8:49 AM
To: Moore, Robert <robert.moore@intel.com>
Cc: lkp <lkp@intel.com>; Rafael J. Wysocki <rjw@rjwysocki.net>; linux-pm@vger.kernel.org; devel@acpica.org; linux-acpi@vger.kernel.org; Arnd Bergmann <arnd@kernel.org>
Subject: Re: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore@intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro, ACPI_PTR_DIFF(), has been used for defining a new one, ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a new way.

I guess this could be addressed by applying the Arnd's patch at https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd@kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp@intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: linux-pm@vger.kernel.org; devel@acpica.org; 
> linux-acpi@vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 
> 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: 
> https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 
> bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  
> Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp@intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer 
> subtraction with a null pointer has undefined behavior 
> [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `-- 
> drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-
> with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation 
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> _______________________________________________
> Devel mailing list -- devel@acpica.org To unsubscribe send an email to 
> devel-leave@acpica.org 
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Devel] Re: [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-04 17:22       ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-04 17:22 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 12121 bytes --]

Rafael,
Yes, it looks like this patch may work OK.


-----Original Message-----
From: Rafael J. Wysocki <rafael(a)kernel.org> 
Sent: Monday, January 03, 2022 8:49 AM
To: Moore, Robert <robert.moore(a)intel.com>
Cc: lkp <lkp(a)intel.com>; Rafael J. Wysocki <rjw(a)rjwysocki.net>; linux-pm(a)vger.kernel.org; devel(a)acpica.org; linux-acpi(a)vger.kernel.org; Arnd Bergmann <arnd(a)kernel.org>
Subject: Re: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore(a)intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro, ACPI_PTR_DIFF(), has been used for defining a new one, ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a new way.

I guess this could be addressed by applying the Arnd's patch at https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd(a)kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp(a)intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw(a)rjwysocki.net>
> Cc: linux-pm(a)vger.kernel.org; devel(a)acpica.org; 
> linux-acpi(a)vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 
> 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: 
> https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 
> bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b  
> Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp(a)intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer 
> subtraction with a null pointer has undefined behavior 
> [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `-- 
> drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-
> with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation 
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
> _______________________________________________
> Devel mailing list -- devel(a)acpica.org To unsubscribe send an email to 
> devel-leave(a)acpica.org 
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

* RE: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-04 22:22         ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-04 22:22 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: lkp, Rafael J. Wysocki, linux-pm, devel, linux-acpi, Arnd Bergmann

However, we came up with a slight abstraction for compilers that don't support uintptr_t:

/* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
  C:\acpica\source\include\actypes.h(414):#ifndef ACPI_UINTPTR_T
  C:\acpica\source\include\actypes.h(415):#define ACPI_UINTPTR_T                  void *

-----Original Message-----
From: Moore, Robert 
Sent: Tuesday, January 04, 2022 9:23 AM
To: Rafael J. Wysocki <rafael@kernel.org>
Cc: lkp <lkp@intel.com>; Rafael J. Wysocki <rjw@rjwysocki.net>; linux-pm@vger.kernel.org; devel@acpica.org; linux-acpi@vger.kernel.org; Arnd Bergmann <arnd@kernel.org>
Subject: RE: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

Rafael,
Yes, it looks like this patch may work OK.


-----Original Message-----
From: Rafael J. Wysocki <rafael@kernel.org>
Sent: Monday, January 03, 2022 8:49 AM
To: Moore, Robert <robert.moore@intel.com>
Cc: lkp <lkp@intel.com>; Rafael J. Wysocki <rjw@rjwysocki.net>; linux-pm@vger.kernel.org; devel@acpica.org; linux-acpi@vger.kernel.org; Arnd Bergmann <arnd@kernel.org>
Subject: Re: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore@intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro, ACPI_PTR_DIFF(), has been used for defining a new one, ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a new way.

I guess this could be addressed by applying the Arnd's patch at https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd@kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp@intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: linux-pm@vger.kernel.org; devel@acpica.org; 
> linux-acpi@vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 
> 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: 
> https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
> bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b
> Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp@intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer 
> subtraction with a null pointer has undefined behavior 
> [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `--
> drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-
> with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation 
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> _______________________________________________
> Devel mailing list -- devel@acpica.org To unsubscribe send an email to 
> devel-leave@acpica.org 
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Devel] Re: [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b
@ 2022-01-04 22:22         ` Moore, Robert
  0 siblings, 0 replies; 10+ messages in thread
From: Moore, Robert @ 2022-01-04 22:22 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 12880 bytes --]

However, we came up with a slight abstraction for compilers that don't support uintptr_t:

/* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
  C:\acpica\source\include\actypes.h(414):#ifndef ACPI_UINTPTR_T
  C:\acpica\source\include\actypes.h(415):#define ACPI_UINTPTR_T                  void *

-----Original Message-----
From: Moore, Robert 
Sent: Tuesday, January 04, 2022 9:23 AM
To: Rafael J. Wysocki <rafael(a)kernel.org>
Cc: lkp <lkp(a)intel.com>; Rafael J. Wysocki <rjw(a)rjwysocki.net>; linux-pm(a)vger.kernel.org; devel(a)acpica.org; linux-acpi(a)vger.kernel.org; Arnd Bergmann <arnd(a)kernel.org>
Subject: RE: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

Rafael,
Yes, it looks like this patch may work OK.


-----Original Message-----
From: Rafael J. Wysocki <rafael(a)kernel.org>
Sent: Monday, January 03, 2022 8:49 AM
To: Moore, Robert <robert.moore(a)intel.com>
Cc: lkp <lkp(a)intel.com>; Rafael J. Wysocki <rjw(a)rjwysocki.net>; linux-pm(a)vger.kernel.org; devel(a)acpica.org; linux-acpi(a)vger.kernel.org; Arnd Bergmann <arnd(a)kernel.org>
Subject: Re: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b

On Mon, Jan 3, 2022 at 4:57 PM Moore, Robert <robert.moore(a)intel.com> wrote:
>
> Are these new warnings, or legacy warnings?

They are new, but AFAICS they appear because an old macro, ACPI_PTR_DIFF(), has been used for defining a new one, ACPI_PTR_TO_PHYSADDR(), which is now triggering the old warning in a new way.

I guess this could be addressed by applying the Arnd's patch at https://patchwork.kernel.org/project/linux-acpi/patch/20210927121338.938994-1-arnd(a)kernel.org/
, but that's problematic for the upstream.

However, I'm wondering if we can do something like the attached patch instead.



> -----Original Message-----
> From: kernel test robot <lkp(a)intel.com>
> Sent: Tuesday, December 28, 2021 10:30 PM
> To: Rafael J. Wysocki <rjw(a)rjwysocki.net>
> Cc: linux-pm(a)vger.kernel.org; devel(a)acpica.org; 
> linux-acpi(a)vger.kernel.org
> Subject: [Devel] [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 
> 8d681a5245f0a5cfb20326b4f6578af1adb8676b
>
> tree/branch: 
> https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
> bleeding-edge branch HEAD: 8d681a5245f0a5cfb20326b4f6578af1adb8676b
> Merge branch 'acpi-sysfs' into bleeding-edge
>
> Warning reports:
>
> https://lore.kernel.org/llvm/202112280907.gTYYYuB4-lkp(a)intel.com
>
> Warning in current branch:
>
> drivers/acpi/acpica/exregion.c:519:17: warning: performing pointer 
> subtraction with a null pointer has undefined behavior 
> [-Wnull-pointer-subtraction]
>
> Warning ids grouped by kconfigs:
>
> clang_recent_errors
> |-- i386-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- i386-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a001-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a002-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a003-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a004-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a005-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a006-20211229
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a011-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a013-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a014-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a015-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-a016-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> |-- x86_64-randconfig-r012-20211228
> |   `--
> |drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction
> |-w ith-a-null-pointer-has-undefined-behavior
> `-- x86_64-randconfig-r024-20211228
>     `--
> drivers-acpi-acpica-exregion.c:warning:performing-pointer-subtraction-
> with-a-null-pointer-has-undefined-behavior
>
> elapsed time: 725m
>
> configs tested: 104
> configs skipped: 3
>
> gcc tested configs:
> arm                              allyesconfig
> arm                              allmodconfig
> arm                                 defconfig
> arm64                               defconfig
> arm64                            allyesconfig
> i386                 randconfig-c001-20211228
> arm                           sama7_defconfig
> arc                        nsim_700_defconfig
> arm                            qcom_defconfig
> arm                          pxa3xx_defconfig
> powerpc                   bluestone_defconfig
> mips                      bmips_stb_defconfig
> arm                             ezx_defconfig
> sh                           se7343_defconfig
> powerpc                     skiroot_defconfig
> arm                         lpc18xx_defconfig
> arm                       imx_v6_v7_defconfig
> arm                          pxa910_defconfig
> powerpc                  mpc885_ads_defconfig
> powerpc                     pq2fads_defconfig
> arm                           sama5_defconfig
> arm                        shmobile_defconfig
> arc                    vdk_hs38_smp_defconfig
> csky                             alldefconfig
> riscv             nommu_k210_sdcard_defconfig
> arm                  randconfig-c002-20211229
> ia64                                defconfig
> ia64                             allmodconfig
> ia64                             allyesconfig
> m68k                             allmodconfig
> m68k                                defconfig
> m68k                             allyesconfig
> nds32                             allnoconfig
> nios2                               defconfig
> arc                              allyesconfig
> csky                                defconfig
> alpha                               defconfig
> nds32                               defconfig
> alpha                            allyesconfig
> nios2                            allyesconfig
> arc                                 defconfig
> sh                               allmodconfig
> h8300                            allyesconfig
> xtensa                           allyesconfig
> parisc                              defconfig
> s390                             allmodconfig
> parisc                           allyesconfig
> s390                                defconfig
> s390                             allyesconfig
> i386                             allyesconfig
> sparc                               defconfig
> i386                                defconfig
> i386                   debian-10.3-kselftests
> i386                              debian-10.3
> sparc                            allyesconfig
> mips                             allyesconfig
> mips                             allmodconfig
> powerpc                           allnoconfig
> powerpc                          allmodconfig
> powerpc                          allyesconfig
> arc                  randconfig-r043-20211228
> riscv                    nommu_k210_defconfig
> riscv                            allyesconfig
> riscv                    nommu_virt_defconfig
> riscv                             allnoconfig
> riscv                               defconfig
> riscv                          rv32_defconfig
> riscv                            allmodconfig
> um                           x86_64_defconfig
> um                             i386_defconfig
> x86_64                           allyesconfig
> x86_64                              defconfig
> x86_64                               rhel-8.3
> x86_64                          rhel-8.3-func
> x86_64                                  kexec
> x86_64                    rhel-8.3-kselftests
>
> clang tested configs:
> x86_64               randconfig-a001-20211229
> x86_64               randconfig-a003-20211229
> x86_64               randconfig-a004-20211229
> x86_64               randconfig-a002-20211229
> x86_64               randconfig-a005-20211229
> x86_64               randconfig-a006-20211229
> i386                 randconfig-a002-20211229
> i386                 randconfig-a003-20211229
> i386                 randconfig-a001-20211229
> i386                 randconfig-a005-20211229
> i386                 randconfig-a006-20211229
> i386                 randconfig-a004-20211229
> x86_64               randconfig-a013-20211228
> x86_64               randconfig-a012-20211228
> x86_64               randconfig-a011-20211228
> x86_64               randconfig-a016-20211228
> x86_64               randconfig-a015-20211228
> x86_64               randconfig-a014-20211228
> i386                 randconfig-a012-20211228
> i386                 randconfig-a011-20211228
> i386                 randconfig-a013-20211228
> i386                 randconfig-a016-20211228
> i386                 randconfig-a014-20211228
> i386                 randconfig-a015-20211228
> hexagon              randconfig-r041-20211228
> riscv                randconfig-r042-20211228
> s390                 randconfig-r044-20211228
> hexagon              randconfig-r045-20211228
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation 
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
> _______________________________________________
> Devel mailing list -- devel(a)acpica.org To unsubscribe send an email to 
> devel-leave(a)acpica.org 
> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2022-01-04 22:22 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-12-29  6:30 [rafael-pm:bleeding-edge] BUILD SUCCESS WITH WARNING 8d681a5245f0a5cfb20326b4f6578af1adb8676b kernel test robot
2021-12-29  6:30 ` [Devel] " kernel test robot
2022-01-03 15:57 ` Moore, Robert
2022-01-03 15:57   ` [Devel] " Moore, Robert
2022-01-03 16:49   ` [Devel] " Rafael J. Wysocki
2022-01-03 16:49     ` [Devel] " Rafael J. Wysocki
2022-01-04 17:22     ` [Devel] " Moore, Robert
2022-01-04 17:22       ` [Devel] " Moore, Robert
2022-01-04 22:22       ` [Devel] " Moore, Robert
2022-01-04 22:22         ` [Devel] " Moore, Robert

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