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Message-ID: <202211040744.UARPf9hF-lkp@intel.com>
Date: Fri, 4 Nov 2022 07:46:10 +0800
From: kernel test robot <lkp@...el.com>
To: Dmitry Safonov <dima@...sta.com>, linux-kernel@...r.kernel.org,
David Ahern <dsahern@...nel.org>,
Eric Dumazet <edumazet@...gle.com>
Cc: oe-kbuild-all@...ts.linux.dev, Dmitry Safonov <dima@...sta.com>,
Bob Gilligan <gilligan@...sta.com>,
Francesco Ruggeri <fruggeri@...sta.com>,
Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Salam Noureddine <noureddine@...sta.com>,
netdev@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
Jason Baron <jbaron@...mai.com>,
Josh Poimboeuf <jpoimboe@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH v2 1/3] jump_label: Add static_key_fast_inc()
Hi Dmitry,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on f2f32f8af2b0ca9d619e5183eae3eed431793baf]
url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Safonov/net-tcp-Dynamically-disable-TCP-MD5-static-key/20221104-052738
base: f2f32f8af2b0ca9d619e5183eae3eed431793baf
patch link: https://lore.kernel.org/r/20221103212524.865762-2-dima%40arista.com
patch subject: [PATCH v2 1/3] jump_label: Add static_key_fast_inc()
config: powerpc-allyesconfig
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://github.com/intel-lab-lkp/linux/commit/bff5ecacd7c0f1e5d610c025726a6c5cb992e828
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Dmitry-Safonov/net-tcp-Dynamically-disable-TCP-MD5-static-key/20221104-052738
git checkout bff5ecacd7c0f1e5d610c025726a6c5cb992e828
# 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 prepare
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/page.h:256,
from arch/powerpc/include/asm/thread_info.h:13,
from include/linux/thread_info.h:60,
from arch/powerpc/include/asm/ptrace.h:328,
from arch/powerpc/include/asm/hw_irq.h:12,
from arch/powerpc/include/asm/irqflags.h:12,
from include/linux/irqflags.h:16,
from include/asm-generic/cmpxchg-local.h:6,
from arch/powerpc/include/asm/cmpxchg.h:526,
from arch/powerpc/include/asm/atomic.h:11,
from include/linux/atomic.h:7,
from include/linux/jump_label.h:78,
from include/linux/dynamic_debug.h:6,
from include/linux/printk.h:566,
from include/asm-generic/bug.h:22,
from arch/powerpc/include/asm/bug.h:158,
from include/linux/bug.h:5,
from include/linux/fortify-string.h:5,
from include/linux/string.h:253,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
arch/powerpc/include/asm/page_32.h: In function 'clear_page':
>> arch/powerpc/include/asm/page_32.h:48:9: error: implicit declaration of function 'WARN_ON' [-Werror=implicit-function-declaration]
48 | WARN_ON((unsigned long)addr & (L1_CACHE_BYTES - 1));
| ^~~~~~~
In file included from arch/powerpc/include/asm/hw_breakpoint.h:12,
from arch/powerpc/include/asm/processor.h:43,
from arch/powerpc/include/asm/thread_info.h:46:
arch/powerpc/include/asm/cpu_has_feature.h: At top level:
>> arch/powerpc/include/asm/cpu_has_feature.h:21:31: error: array type has incomplete element type 'struct static_key_true'
21 | extern struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS];
| ^~~~~~~~~~~~~~~~
arch/powerpc/include/asm/cpu_has_feature.h: In function 'cpu_has_feature':
>> arch/powerpc/include/asm/cpu_has_feature.h:32:14: error: 'static_key_initialized' undeclared (first use in this function)
32 | if (!static_key_initialized) {
| ^~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/cpu_has_feature.h:32:14: note: each undeclared identifier is reported only once for each function it appears in
>> arch/powerpc/include/asm/cpu_has_feature.h:46:16: error: implicit declaration of function 'static_branch_likely' [-Werror=implicit-function-declaration]
46 | return static_branch_likely(&cpu_feature_keys[i]);
| ^~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/include/asm/cpu_has_feature.h:25:13: warning: variable 'i' set but not used [-Wunused-but-set-variable]
25 | int i;
| ^
include/linux/thread_info.h: In function 'check_copy_size':
>> include/linux/thread_info.h:233:13: error: implicit declaration of function 'WARN_ON_ONCE' [-Werror=implicit-function-declaration]
233 | if (WARN_ON_ONCE(bytes > INT_MAX))
| ^~~~~~~~~~~~
include/linux/jump_label.h: In function 'static_key_fast_inc':
include/linux/jump_label.h:83:35: error: implicit declaration of function 'WARN' [-Werror=implicit-function-declaration]
83 | #define STATIC_KEY_CHECK_USE(key) WARN(!static_key_initialized, \
| ^~~~
include/linux/jump_label.h:250:9: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
250 | STATIC_KEY_CHECK_USE(key);
| ^~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:118: scripts/mod/devicetable-offsets.s] Error 1
make[2]: Target 'scripts/mod/' not remade because of errors.
make[1]: *** [Makefile:1269: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:231: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/static_key_initialized +32 arch/powerpc/include/asm/cpu_has_feature.h
4db7327194dba0 Kevin Hao 2016-07-23 20
4db7327194dba0 Kevin Hao 2016-07-23 @21 extern struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS];
4db7327194dba0 Kevin Hao 2016-07-23 22
4db7327194dba0 Kevin Hao 2016-07-23 23 static __always_inline bool cpu_has_feature(unsigned long feature)
4db7327194dba0 Kevin Hao 2016-07-23 24 {
4db7327194dba0 Kevin Hao 2016-07-23 @25 int i;
4db7327194dba0 Kevin Hao 2016-07-23 26
b5fa0f7f88edcd Michael Ellerman 2017-01-24 27 #ifndef __clang__ /* clang can't cope with this */
4db7327194dba0 Kevin Hao 2016-07-23 28 BUILD_BUG_ON(!__builtin_constant_p(feature));
b5fa0f7f88edcd Michael Ellerman 2017-01-24 29 #endif
4db7327194dba0 Kevin Hao 2016-07-23 30
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 31 #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 @32 if (!static_key_initialized) {
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 33 printk("Warning! cpu_has_feature() used prior to jump label init!\n");
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 34 dump_stack();
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 35 return early_cpu_has_feature(feature);
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 36 }
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 37 #endif
c812c7d8f1470a Aneesh Kumar K.V 2016-07-23 38
4db7327194dba0 Kevin Hao 2016-07-23 39 if (CPU_FTRS_ALWAYS & feature)
4db7327194dba0 Kevin Hao 2016-07-23 40 return true;
4db7327194dba0 Kevin Hao 2016-07-23 41
4db7327194dba0 Kevin Hao 2016-07-23 42 if (!(CPU_FTRS_POSSIBLE & feature))
4db7327194dba0 Kevin Hao 2016-07-23 43 return false;
4db7327194dba0 Kevin Hao 2016-07-23 44
4db7327194dba0 Kevin Hao 2016-07-23 45 i = __builtin_ctzl(feature);
4db7327194dba0 Kevin Hao 2016-07-23 @46 return static_branch_likely(&cpu_feature_keys[i]);
4db7327194dba0 Kevin Hao 2016-07-23 47 }
4db7327194dba0 Kevin Hao 2016-07-23 48 #else
eed5fae00593ab Christophe Leroy 2021-03-10 49 static __always_inline bool cpu_has_feature(unsigned long feature)
b92a226e528423 Kevin Hao 2016-07-23 50 {
b92a226e528423 Kevin Hao 2016-07-23 51 return early_cpu_has_feature(feature);
b92a226e528423 Kevin Hao 2016-07-23 52 }
4db7327194dba0 Kevin Hao 2016-07-23 53 #endif
b92a226e528423 Kevin Hao 2016-07-23 54
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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