Re: [PATCH v3 2/2] riscv: turn pgtable_l4|[l5]_enabled to static key for RV64

kernel test robot
2022-05-19T23:58:00Z

Hi Jisheng,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.18-rc7]
[cannot apply to next-20220519]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/intel-lab-lkp/linux/commits/Jisheng-Zhang/use-static-key-to-optimize-pgtable_l4_enabled/20220520-001459
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f993aed406eaf968ba3867a76bb46c95336a33d0
config: riscv-buildonly-randconfig-r003-20220519 (https://download.01.org/0day-ci/archive/20220520/202205200730.afjapejq-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304)
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/intel-lab-lkp/linux/commit/d052c69ebaf48ac2925d6f9fa033d9e394da1074
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Jisheng-Zhang/use-static-key-to-optimize-pgtable_l4_enabled/20220520-001459
git checkout d052c69ebaf48ac2925d6f9fa033d9e394da1074
# 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/tty/ net/ceph/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

In file included from drivers/tty/tty_io.c:73:
In file included from include/linux/sched/signal.h:9:
In file included from include/linux/sched/task.h:11:
In file included from include/linux/uaccess.h:11:
In file included from arch/riscv/include/asm/uaccess.h:12:
In file included from arch/riscv/include/asm/pgtable.h:112:
>> arch/riscv/include/asm/pgtable-64.h:19:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
arch/riscv/include/asm/pgtable-64.h:27:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
In file included from drivers/tty/tty_io.c:75:
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 drivers/tty/tty_io.c:75:
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 drivers/tty/tty_io.c:75:
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;
~~~~~~~~~~ ^
7 warnings and 2 errors generated.
--
In file included from drivers/tty/tty_ioctl.c:11:
In file included from include/uapi/linux/termios.h:6:
In file included from ./arch/riscv/include/generated/uapi/asm/termios.h:1:
In file included from include/asm-generic/termios.h:6:
In file included from include/linux/uaccess.h:11:
In file included from arch/riscv/include/asm/uaccess.h:12:
In file included from arch/riscv/include/asm/pgtable.h:112:
>> arch/riscv/include/asm/pgtable-64.h:19:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
arch/riscv/include/asm/pgtable-64.h:27:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
In file included from drivers/tty/tty_ioctl.c:13:
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/tty/tty_ioctl.c:13:
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/tty/tty_ioctl.c:13:
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/tty/tty_ioctl.c:13:
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/tty/tty_ioctl.c:13:
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/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:27: 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/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:5: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[2] == set2->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/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:21: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[2] == set2->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/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:115:5: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[1] == set2->sig[1]) &&
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:115:21: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[1] == set2->sig[1]) &&
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:118:11: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[1] == set2->sig[1]) &&
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/tty/tty_ioctl.c:13:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:118:27: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[1] == set2->sig[1]) &&
^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
--
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:5:
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:9:
In file included from include/linux/sched/task.h:11:
In file included from include/linux/uaccess.h:11:
In file included from arch/riscv/include/asm/uaccess.h:12:
In file included from arch/riscv/include/asm/pgtable.h:112:
>> arch/riscv/include/asm/pgtable-64.h:19:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
arch/riscv/include/asm/pgtable-64.h:27:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:12:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:42:
In file included from include/linux/scatterlist.h:9:
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 drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:12:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:42:
In file included from include/linux/scatterlist.h:9:
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 drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:12:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:42:
In file included from include/linux/scatterlist.h:9:
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;
~~~~~~~~~~ ^
>> drivers/tty/tty_port.c:245:2: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551615 to 4294967295 [-Wconstant-conversion]
INIT_KFIFO(port->xmit_fifo);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/kfifo.h:130:69: note: expanded from macro 'INIT_KFIFO'
__kfifo->mask = __is_kfifo_ptr(__tmp) ? 0 : ARRAY_SIZE(__tmp->buf) - 1;\
~ ~~~~~~~~~~~~~~~~~~~~~~~^~~
8 warnings and 2 errors generated.
--
In file included from drivers/tty/serial/earlycon.c:16:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:15:
In file included from include/linux/pgtable.h:6:
In file included from arch/riscv/include/asm/pgtable.h:112:
>> arch/riscv/include/asm/pgtable-64.h:19:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
arch/riscv/include/asm/pgtable-64.h:27:6: error: call to undeclared function 'static_branch_likely'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (static_branch_likely(&_pgtable_lx_ready))
^
In file included from drivers/tty/serial/earlycon.c:16:
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 drivers/tty/serial/earlycon.c:16:
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 drivers/tty/serial/earlycon.c:16:
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;
~~~~~~~~~~ ^
In file included from drivers/tty/serial/earlycon.c:17:
In file included from include/linux/serial_core.h:13:
In file included from include/linux/interrupt.h:21:
In file included from arch/riscv/include/asm/sections.h:9:
In file included from include/linux/mm.h:700:
In file included from include/linux/huge_mm.h:8:
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/tty/serial/earlycon.c:17:
In file included from include/linux/serial_core.h:13:
In file included from include/linux/interrupt.h:21:
In file included from arch/riscv/include/asm/sections.h:9:
In file included from include/linux/mm.h:700:
In file included from include/linux/huge_mm.h:8:
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/tty/serial/earlycon.c:17:
In file included from include/linux/serial_core.h:13:
In file included from include/linux/interrupt.h:21:
In file included from arch/riscv/include/asm/sections.h:9:
In file included from include/linux/mm.h:700:
In file included from include/linux/huge_mm.h:8:
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/tty/serial/earlycon.c:17:
In file included from include/linux/serial_core.h:13:
In file included from include/linux/interrupt.h:21:
In file included from arch/riscv/include/asm/sections.h:9:
In file included from include/linux/mm.h:700:
In file included from include/linux/huge_mm.h:8:
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]
..

vim +/static_branch_likely +19 arch/riscv/include/asm/pgtable-64.h

16
17 static __always_inline bool pgtable_l5_enabled(void)
18 {
> 19 if (static_branch_likely(&_pgtable_lx_ready))
20 return static_branch_likely(&_pgtable_l5_enabled);
21 else
22 return _pgtable_l5_enabled_early;
23 }
24

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