* [sashal-linux-stable:queue-5.4 26/47] kernel/cgroup/cgroup-v1.c:927:12: error: implicit declaration of function 'invalfc'
@ 2021-02-16 4:28 kernel test robot
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From: kernel test robot @ 2021-02-16 4:28 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.4
head: 72cf0d8c01acc7aa359dae193ac04980479036f2
commit: 85fb22459cd84a3cee1a1d36a32ba119f7b1c5e7 [26/47] cgroup-v1: add disabled controller check in cgroup1_parse_param()
config: powerpc64-randconfig-r013-20210216 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/commit/?id=85fb22459cd84a3cee1a1d36a32ba119f7b1c5e7
git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
git fetch --no-tags sashal-linux-stable queue-5.4
git checkout 85fb22459cd84a3cee1a1d36a32ba119f7b1c5e7
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:602:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:58:1: note: expanded from here
__do_insw
^
arch/powerpc/include/asm/io.h:543:56: note: expanded from macro '__do_insw'
#define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from kernel/cgroup/cgroup-v1.c:2:
In file included from kernel/cgroup/cgroup-internal.h:5:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:9:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:605:
arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:602:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:60:1: note: expanded from here
__do_insl
^
arch/powerpc/include/asm/io.h:544:56: note: expanded from macro '__do_insl'
#define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from kernel/cgroup/cgroup-v1.c:2:
In file included from kernel/cgroup/cgroup-internal.h:5:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:9:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:605:
arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:602:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:62:1: note: expanded from here
__do_outsb
^
arch/powerpc/include/asm/io.h:545:58: note: expanded from macro '__do_outsb'
#define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from kernel/cgroup/cgroup-v1.c:2:
In file included from kernel/cgroup/cgroup-internal.h:5:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:9:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:605:
arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:602:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:64:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:546:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from kernel/cgroup/cgroup-v1.c:2:
In file included from kernel/cgroup/cgroup-internal.h:5:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:9:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:605:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:602:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:66:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:547:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
>> kernel/cgroup/cgroup-v1.c:927:12: error: implicit declaration of function 'invalfc' [-Werror,-Wimplicit-function-declaration]
return invalfc(fc, "Disabled controller '%s'",
^
6 warnings and 1 error generated.
vim +/invalfc +927 kernel/cgroup/cgroup-v1.c
906
907 int cgroup1_parse_param(struct fs_context *fc, struct fs_parameter *param)
908 {
909 struct cgroup_fs_context *ctx = cgroup_fc2context(fc);
910 struct cgroup_subsys *ss;
911 struct fs_parse_result result;
912 int opt, i;
913
914 opt = fs_parse(fc, &cgroup1_fs_parameters, param, &result);
915 if (opt == -ENOPARAM) {
916 if (strcmp(param->key, "source") == 0) {
917 if (fc->source)
918 return invalf(fc, "Multiple sources not supported");
919 fc->source = param->string;
920 param->string = NULL;
921 return 0;
922 }
923 for_each_subsys(ss, i) {
924 if (strcmp(param->key, ss->legacy_name))
925 continue;
926 if (!cgroup_ssid_enabled(i) || cgroup1_ssid_disabled(i))
> 927 return invalfc(fc, "Disabled controller '%s'",
928 param->key);
929 ctx->subsys_mask |= (1 << i);
930 return 0;
931 }
932 return cg_invalf(fc, "cgroup1: Unknown subsys name '%s'", param->key);
933 }
934 if (opt < 0)
935 return opt;
936
937 switch (opt) {
938 case Opt_none:
939 /* Explicitly have no subsystems */
940 ctx->none = true;
941 break;
942 case Opt_all:
943 ctx->all_ss = true;
944 break;
945 case Opt_noprefix:
946 ctx->flags |= CGRP_ROOT_NOPREFIX;
947 break;
948 case Opt_clone_children:
949 ctx->cpuset_clone_children = true;
950 break;
951 case Opt_cpuset_v2_mode:
952 ctx->flags |= CGRP_ROOT_CPUSET_V2_MODE;
953 break;
954 case Opt_xattr:
955 ctx->flags |= CGRP_ROOT_XATTR;
956 break;
957 case Opt_release_agent:
958 /* Specifying two release agents is forbidden */
959 if (ctx->release_agent)
960 return cg_invalf(fc, "cgroup1: release_agent respecified");
961 ctx->release_agent = param->string;
962 param->string = NULL;
963 break;
964 case Opt_name:
965 /* blocked by boot param? */
966 if (cgroup_no_v1_named)
967 return -ENOENT;
968 /* Can't specify an empty name */
969 if (!param->size)
970 return cg_invalf(fc, "cgroup1: Empty name");
971 if (param->size > MAX_CGROUP_ROOT_NAMELEN - 1)
972 return cg_invalf(fc, "cgroup1: Name too long");
973 /* Must match [\w.-]+ */
974 for (i = 0; i < param->size; i++) {
975 char c = param->string[i];
976 if (isalnum(c))
977 continue;
978 if ((c == '.') || (c == '-') || (c == '_'))
979 continue;
980 return cg_invalf(fc, "cgroup1: Invalid name");
981 }
982 /* Specifying two names is forbidden */
983 if (ctx->name)
984 return cg_invalf(fc, "cgroup1: name respecified");
985 ctx->name = param->string;
986 param->string = NULL;
987 break;
988 }
989 return 0;
990 }
991
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-02-16 4:28 [sashal-linux-stable:queue-5.4 26/47] kernel/cgroup/cgroup-v1.c:927:12: error: implicit declaration of function 'invalfc' kernel test robot
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