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* [jimc:dd-drm-next 2/11] lib/dynamic_debug.c:609:54: error: incomplete definition of type 'struct module'
@ 2021-08-20 13:11 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-08-20 13:11 UTC (permalink / raw)
  To: kbuild-all

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tree:   https://github.com/jimc/linux.git dd-drm-next
head:   334f24cc73a3d5051217851d4616cb89c2d152dc
commit: 0322252e3c15fa80be1780ca68dde765a57f2c4b [2/11] dyndbg: add DEFINE_DYNAMIC_DEBUG_CATEGORIES and callbacks
config: riscv-randconfig-r042-20210818 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d9c5613e856cf2addfbf892fc4c1ce9ef9feceaa)
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/jimc/linux/commit/0322252e3c15fa80be1780ca68dde765a57f2c4b
        git remote add jimc https://github.com/jimc/linux.git
        git fetch --no-tags jimc dd-drm-next
        git checkout 0322252e3c15fa80be1780ca68dde765a57f2c4b
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   In file included from lib/dynamic_debug.c:35:
   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:36:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from lib/dynamic_debug.c:35:
   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:34:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from lib/dynamic_debug.c:35:
   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;
                                                     ~~~~~~~~~~ ^
>> lib/dynamic_debug.c:609:54: error: incomplete definition of type 'struct module'
                   matches = dynamic_debug_exec_queries(query, kp->mod->name);
                                                               ~~~~~~~^
   include/linux/jump_label.h:201:8: note: forward declaration of 'struct module'
   struct module;
          ^
   7 warnings and 1 error generated.


vim +609 lib/dynamic_debug.c

   579	
   580	#define FMT_QUERY_SIZE 128 /* typically need <40 */
   581	/**
   582	 * param_set_dyndbg() - drm.debug style bits=>categories setter
   583	 * @instr: string echo>d to sysfs
   584	 * @kp:    struct kernel_param* ->data has bitmap
   585	 * Exported to support DEFINE_DYNAMIC_DEBUG_CATEGORIES
   586	 */
   587	int param_set_dyndbg(const char *instr, const struct kernel_param *kp)
   588	{
   589		unsigned long inbits;
   590		int rc, i, matches = 0, totct = 0;
   591		char query[FMT_QUERY_SIZE];
   592		const struct dyndbg_bitdesc *bitmap = kp->data;
   593	
   594		if (!bitmap) {
   595			pr_err("set_dyndbg: no bits=>queries map\n");
   596			return -EINVAL;
   597		}
   598		rc = kstrtoul(instr, 0, &inbits);
   599		if (rc) {
   600			pr_err("set_dyndbg: failed\n");
   601			return rc;
   602		}
   603		vpr_info("set_dyndbg: input 0x%lx\n", inbits);
   604	
   605		for (i = 0; bitmap->prefix; i++, bitmap++) {
   606			snprintf(query, FMT_QUERY_SIZE, "format '^%s' %cp", bitmap->prefix,
   607				 test_bit(i, &inbits) ? '+' : '-');
   608	
 > 609			matches = dynamic_debug_exec_queries(query, kp->mod->name);
   610	
   611			v2pr_info("bit-%d: %d matches on '%s'\n", i, matches, query);
   612			totct += matches;
   613		}
   614		vpr_info("total matches: %d\n", totct);
   615		return 0;
   616	}
   617	EXPORT_SYMBOL(param_set_dyndbg);
   618	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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2021-08-20 13:11 [jimc:dd-drm-next 2/11] lib/dynamic_debug.c:609:54: error: incomplete definition of type 'struct module' kernel test robot

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