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Message-ID: <202209220825.8YxYs6kc-lkp@intel.com>
Date: Thu, 22 Sep 2022 08:50:19 +0800
From: kernel test robot <lkp@...el.com>
To: Davidlohr Bueso <dave@...olabs.net>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org, Dave Jiang <dave.jiang@...el.com>
Subject: [djiang:cxl-security 1/19] include/linux/memregion.h:54:2: error:
call to undeclared function 'WARN_ON_ONCE'; ISO C99 and later do not support
implicit function declarations
tree: https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git cxl-security
head: 3b2ea8468d5dbe2e7b61dcd86cc3aeadfe766d07
commit: d8fab77dd9512ae56e653afddbef9351da206679 [1/19] memregion: Add cpu_cache_invalidate_memregion() interface
config: riscv-randconfig-r032-20220921
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git/commit/?id=d8fab77dd9512ae56e653afddbef9351da206679
git remote add djiang https://git.kernel.org/pub/scm/linux/kernel/git/djiang/linux.git
git fetch --no-tags djiang cxl-security
git checkout d8fab77dd9512ae56e653afddbef9351da206679
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/cxl/ kernel//
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 drivers/cxl/core/port.c:4:
>> include/linux/memregion.h:52:5: warning: no previous prototype for function 'cpu_cache_invalidate_memregion' [-Wmissing-prototypes]
int cpu_cache_invalidate_memregion(int res_desc)
^
include/linux/memregion.h:52:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int cpu_cache_invalidate_memregion(int res_desc)
^
static
1 warning generated.
--
In file included from drivers/cxl/core/region.c:3:
>> include/linux/memregion.h:54:2: error: call to undeclared function 'WARN_ON_ONCE'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
WARN_ON_ONCE("CPU cache invalidation required");
^
>> include/linux/memregion.h:52:5: warning: no previous prototype for function 'cpu_cache_invalidate_memregion' [-Wmissing-prototypes]
int cpu_cache_invalidate_memregion(int res_desc)
^
include/linux/memregion.h:52:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int cpu_cache_invalidate_memregion(int res_desc)
^
static
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:25: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:4: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
set->sig[1] | set->sig[0]) == 0;
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:100:11: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[1] | set->sig[0]) == 0;
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/cxl/core/region.c:5:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/riscv/include/asm/elf.h:12:
In file included from include/linux/compat.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
vim +/WARN_ON_ONCE +54 include/linux/memregion.h
51
> 52 int cpu_cache_invalidate_memregion(int res_desc)
53 {
> 54 WARN_ON_ONCE("CPU cache invalidation required");
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config" of type "text/plain" (205261 bytes)
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