[tip:core/urgent 1/1] include/linux/context_tracking.h:99:19: error: redefinition of '__ct_state'
From: kernel test robot
Date: Mon Mar 20 2023 - 09:05:18 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/urgent
head: 3e2619c4ebba2cab8414c55b131b7a28f628de3b
commit: 3e2619c4ebba2cab8414c55b131b7a28f628de3b [1/1] entry: Fix noinstr warning in __enter_from_user_mode()
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20230320/202303202052.lv1EF1t6-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=3e2619c4ebba2cab8414c55b131b7a28f628de3b
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip core/urgent
git checkout 3e2619c4ebba2cab8414c55b131b7a28f628de3b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc prepare
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303202052.lv1EF1t6-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
In file included from include/linux/kvm_host.h:26,
from arch/powerpc/include/asm/kvm_ppc.h:19,
from arch/powerpc/include/asm/dbell.h:17,
from arch/powerpc/kernel/asm-offsets.c:36:
>> include/linux/context_tracking.h:99:19: error: redefinition of '__ct_state'
99 | static inline int __ct_state(void) { return -1; }
| ^~~~~~~~~~
In file included from include/linux/hardirq.h:5,
from include/linux/interrupt.h:11,
from include/linux/kernel_stat.h:9,
from include/linux/cgroup.h:26,
from include/linux/memcontrol.h:13,
from include/linux/swap.h:9,
from include/linux/suspend.h:5,
from arch/powerpc/kernel/asm-offsets.c:21:
include/linux/context_tracking_state.h:50:28: note: previous definition of '__ct_state' with type 'int(void)'
50 | static __always_inline int __ct_state(void)
| ^~~~~~~~~~
make[2]: *** [scripts/Makefile.build:114: arch/powerpc/kernel/asm-offsets.s] Error 1
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:1286: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:226: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/__ct_state +99 include/linux/context_tracking.h
90
91 #else
92 static inline void user_enter(void) { }
93 static inline void user_exit(void) { }
94 static inline void user_enter_irqoff(void) { }
95 static inline void user_exit_irqoff(void) { }
96 static inline int exception_enter(void) { return 0; }
97 static inline void exception_exit(enum ctx_state prev_ctx) { }
98 static inline int ct_state(void) { return -1; }
> 99 static inline int __ct_state(void) { return -1; }
100 static __always_inline bool context_tracking_guest_enter(void) { return false; }
101 static inline void context_tracking_guest_exit(void) { }
102 #define CT_WARN_ON(cond) do { } while (0)
103 #endif /* !CONFIG_CONTEXT_TRACKING_USER */
104
--
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https://github.com/intel/lkp-tests