* [vbabka:slab-orders 1/2] mm/slub.c:6262:26: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int')
@ 2023-08-12 6:05 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-08-12 6:05 UTC (permalink / raw)
To: Vlastimil Babka; +Cc: llvm, oe-kbuild-all, linux-mm
tree: https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git slab-orders
head: 93d25b5ac13e097b8c7274a7ca354d2a4d88d7ae
commit: e036e48cc75073b52ea9ccf837574f95ad58604d [1/2] mm, slub: print out results for calculate_order() with varying parameters
config: hexagon-randconfig-r041-20230812 (https://download.01.org/0day-ci/archive/20230812/202308121325.FhwUCFCC-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230812/202308121325.FhwUCFCC-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308121325.FhwUCFCC-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from mm/slub.c:14:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
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]
547 | 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]
560 | 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'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from mm/slub.c:14:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
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]
573 | 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'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from mm/slub.c:14:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
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]
584 | __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]
594 | __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]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
mm/slub.c:2276:15: warning: variable 'partial_slabs' set but not used [-Wunused-but-set-variable]
2276 | unsigned int partial_slabs = 0;
| ^
>> mm/slub.c:6262:26: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
6262 | pr_info("%10lu\t%d\n", size, order);
| ~~~~~ ^~~~
| %10zu
include/linux/printk.h:528:34: note: expanded from macro 'pr_info'
528 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
455 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
427 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
8 warnings generated.
vim +6262 mm/slub.c
6248
6249 static void __print_all_orders(unsigned int page_shift, unsigned int nr_cpus)
6250 {
6251 int last_order = -1;
6252
6253 pr_info("Calculated slab orders for page_shift %u nr_cpus %u:\n",
6254 page_shift, nr_cpus);
6255
6256 for (size_t size = 8; size < 1024*1024; size += 8) {
6257 int order = __calculate_order(size, page_shift, nr_cpus);
6258
6259 if (order == last_order)
6260 continue;
6261
> 6262 pr_info("%10lu\t%d\n", size, order);
6263
6264 last_order = order;
6265 }
6266 }
6267
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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