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Date: Wed, 23 Mar 2022 13:59:33 +0800
From: kernel test robot <lkp@...el.com>
To: Palmer Dabbelt <palmerdabbelt@...gle.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:palmer/linux/riscv-ftrace_mutex_fix 1/1]
arch/riscv/kernel/ftrace.c:14:5: error: expected identifier or '('
tree: https://github.com/ammarfaizi2/linux-block palmer/linux/riscv-ftrace_mutex_fix
head: 013eaa62130cd541cb2e7bf58303c509298701a8
commit: 013eaa62130cd541cb2e7bf58303c509298701a8 [1/1] RISC-V: Don't check text_mutex during stop_machine
config: riscv-randconfig-r032-20220323 (https://download.01.org/0day-ci/archive/20220323/202203231310.ymLzRrpb-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 902f4708fe1d03b0de7e5315ef875006a6adc319)
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://github.com/ammarfaizi2/linux-block/commit/013eaa62130cd541cb2e7bf58303c509298701a8
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block palmer/linux/riscv-ftrace_mutex_fix
git checkout 013eaa62130cd541cb2e7bf58303c509298701a8
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from arch/riscv/kernel/ftrace.c:8:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from arch/riscv/kernel/ftrace.c:8:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from arch/riscv/kernel/ftrace.c:8:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
>> arch/riscv/kernel/ftrace.c:14:5: error: expected identifier or '('
int riscv_ftrace_in_stop_machine;
^
arch/riscv/include/asm/ftrace.h:90:38: note: expanded from macro 'riscv_ftrace_in_stop_machine'
#define riscv_ftrace_in_stop_machine 0
^
7 warnings and 1 error generated.
vim +14 arch/riscv/kernel/ftrace.c
13
> 14 int riscv_ftrace_in_stop_machine;
15
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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