* [ammarfaizi2-block:testing/af/home 3/8] kernel/workqueue.c:4421:5: warning: no previous prototype for function 'set_workqueue_cpumask'
@ 2023-05-31 12:14 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-05-31 12:14 UTC (permalink / raw)
To: Ammar Faizi; +Cc: llvm, oe-kbuild-all, Ammar Faizi, GNU/Weeb Mailing List
tree: https://github.com/ammarfaizi2/linux-block testing/af/home
head: 51fb2efd62ae52dc061dbca301fb823357fb3f80
commit: 6436622d20b564a334e4bc0bc5019c82a592dd08 [3/8] workqueue: Add set_workqueue_cpumask() helper function
config: hexagon-randconfig-r041-20230531 (https://download.01.org/0day-ci/archive/20230531/[email protected]/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 4faf3aaf28226a4e950c103a14f6fc1d1fdabb1b)
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ammarfaizi2/linux-block/commit/6436622d20b564a334e4bc0bc5019c82a592dd08
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block testing/af/home
git checkout 6436622d20b564a334e4bc0bc5019c82a592dd08
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
In file included from kernel/workqueue.c:39:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/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/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: 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:560:61: 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 kernel/workqueue.c:39:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/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/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: 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 kernel/workqueue.c:39:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/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/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: 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:594:59: 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:604:59: 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);
~~~~~~~~~~ ^
>> kernel/workqueue.c:4421:5: warning: no previous prototype for function 'set_workqueue_cpumask' [-Wmissing-prototypes]
int set_workqueue_cpumask(struct workqueue_struct *wq, const cpumask_var_t mask)
^
kernel/workqueue.c:4421:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int set_workqueue_cpumask(struct workqueue_struct *wq, const cpumask_var_t mask)
^
static
7 warnings generated.
vim +/set_workqueue_cpumask +4421 kernel/workqueue.c
4420
> 4421 int set_workqueue_cpumask(struct workqueue_struct *wq, const cpumask_var_t mask)
4422 {
4423 struct workqueue_attrs *tmp_attrs;
4424 int ret;
4425
4426 tmp_attrs = alloc_workqueue_attrs();
4427 if (!tmp_attrs)
4428 return -ENOMEM;
4429
4430 apply_wqattrs_lock();
4431 copy_workqueue_attrs(tmp_attrs, wq->unbound_attrs);
4432 cpumask_copy(tmp_attrs->cpumask, mask);
4433 ret = apply_workqueue_attrs_locked(wq, tmp_attrs);
4434 apply_wqattrs_unlock();
4435 free_workqueue_attrs(tmp_attrs);
4436 return ret;
4437 }
4438 EXPORT_SYMBOL_GPL(set_workqueue_cpumask);
4439
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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