11:36 p.m.
Hi "Aneesh,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on next-20200611]
[cannot apply to v5.7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url:
https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/Kernel-userspac...
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-r003-20200612 (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 9.3.0
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
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>, old ones prefixed by <<):
arch/powerpc/mm/book3s64/pkeys.c: In function 'setup_kuep':
> arch/powerpc/mm/book3s64/pkeys.c:207:28: error:
'boot_cpuid' undeclared (first use in this function)
207 | if
(smp_processor_id() == boot_cpuid) {
| ^~~~~~~~~~
arch/powerpc/mm/book3s64/pkeys.c:207:28: note: each undeclared identifier is reported only
once for each function it appears in
arch/powerpc/mm/book3s64/pkeys.c: In function 'setup_kuap':
arch/powerpc/mm/book3s64/pkeys.c:228:28: error: 'boot_cpuid' undeclared (first use
in this function)
228 | if (smp_processor_id() == boot_cpuid) {
| ^~~~~~~~~~
vim +/boot_cpuid +207 arch/powerpc/mm/book3s64/pkeys.c
92e3da3cf193fd arch/powerpc/mm/pkeys.c Ram Pai 2018-01-18 200
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 201 #ifdef
CONFIG_PPC_KUEP
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 202 void
__init setup_kuep(bool disabled)
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 203 {
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 204 if
(disabled || !early_radix_enabled())
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 205
return;
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 206
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 @207 if
(smp_processor_id() == boot_cpuid) {
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 208
pr_info("Activating Kernel Userspace Execution Prevention\n");
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 209
cur_cpu_spec->mmu_features |= MMU_FTR_KUEP;
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 210 }
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 211
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 212 /*
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 213 *
Radix always uses key0 of the IAMR to determine if an access is
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 214 *
allowed. We set bit 0 (IBM bit 1) of key0, to prevent instruction
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 215 *
fetch.
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 216 */
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 217
mtspr(SPRN_IAMR, AMR_KUEP_BLOCKED);
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 218
isync();
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 219 }
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 220 #endif
82b6d6aaa3e29c arch/powerpc/mm/book3s64/pkeys.c Aneesh Kumar K.V 2020-06-10 221
:::::: The code at line 207 was first introduced by commit
:::::: 82b6d6aaa3e29c1f61639eaf61333b3f84b34c4d powerpc/book3s64/kuep: Move KUEP related
function outside radix
:::::: TO: Aneesh Kumar K.V <aneesh.kumar(a)linux.ibm.com>
:::::: CC: 0day robot <lkp(a)intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org