5:17 p.m.
tree: https://github.com/jimc/linux.git dd-drm-next
head: 7c9c791fee34dc8f3ef72a288efd6de7b48d5fb2
commit: fde769af5cc2d7134533d623f5808d114843263e [6/8] drm_print: add choice to use
dynamic debug in drm-debug
config: i386-randconfig-c001-20210816 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/jimc/linux/commit/fde769af5cc2d7134533d623f5808d114843...
git remote add jimc https://github.com/jimc/linux.git
git fetch --no-tags jimc dd-drm-next
git checkout fde769af5cc2d7134533d623f5808d114843263e
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/printk.h:456,
from include/asm-generic/bug.h:22,
from arch/x86/include/asm/bug.h:84,
from include/linux/bug.h:5,
from include/linux/io.h:11,
from drivers/gpu/drm/drm_print.c:30:
> include/linux/dynamic_debug.h:267:27: error: expected ')'
before '&' token
267 | module_param_cbd(fsname,
¶m_ops_dyndbg, &var, 0644, \
| ^
drivers/gpu/drm/drm_print.c:60:1: note: in expansion of macro
'DEFINE_DYNAMIC_DEBUG_CATEGORIES'
60 | DEFINE_DYNAMIC_DEBUG_CATEGORIES(debug, __drm_debug,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:265:37: warning: 'dyndbg_cats_debug' defined but
not used [-Wunused-const-variable=]
265 | static const struct dyndbg_bitdesc dyndbg_cats_##fsname[] = \
| ^~~~~~~~~~~~
drivers/gpu/drm/drm_print.c:60:1: note: in expansion of macro
'DEFINE_DYNAMIC_DEBUG_CATEGORIES'
60 | DEFINE_DYNAMIC_DEBUG_CATEGORIES(debug, __drm_debug,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +267 include/linux/dynamic_debug.h
ec8e20fb31430e Jim Cromie 2021-07-28 245
ec8e20fb31430e Jim Cromie 2021-07-28 246 #if defined(CONFIG_DYNAMIC_DEBUG) || \
ec8e20fb31430e Jim Cromie 2021-07-28 247 (defined(CONFIG_DYNAMIC_DEBUG_CORE) &&
defined(DYNAMIC_DEBUG_MODULE))
ec8e20fb31430e Jim Cromie 2021-07-28 248 /**
ec8e20fb31430e Jim Cromie 2021-07-28 249 * DEFINE_DYNAMIC_DEBUG_CATEGORIES() - define
debug categories, bitmap, sysfs-knob
ec8e20fb31430e Jim Cromie 2021-07-28 250 * @fsname: parameter basename under /sys
ec8e20fb31430e Jim Cromie 2021-07-28 251 * @var: C-identifier holding state
ec8e20fb31430e Jim Cromie 2021-07-28 252 * @_desc: string summarizing the controls
provided
ec8e20fb31430e Jim Cromie 2021-07-28 253 * @...: list of struct dyndbg_bitdesc
initializations
ec8e20fb31430e Jim Cromie 2021-07-28 254 *
ec8e20fb31430e Jim Cromie 2021-07-28 255 * Defines
/sys/modules/$modname/parameters/@fsname, and @bit_descs,
ec8e20fb31430e Jim Cromie 2021-07-28 256 * which maps bits 0-N to categories of
pr_debugs to be controlled.
ec8e20fb31430e Jim Cromie 2021-07-28 257 * This is effectively write only, because
controlled callsites can be
ec8e20fb31430e Jim Cromie 2021-07-28 258 * further modified via >control.
ec8e20fb31430e Jim Cromie 2021-07-28 259 *
ec8e20fb31430e Jim Cromie 2021-07-28 260 * Also calls MODULE_PARM_DESC(fsname, _desc),
with the intent to
ec8e20fb31430e Jim Cromie 2021-07-28 261 * generate the bit_legend and apply it to the
given bit_descs
ec8e20fb31430e Jim Cromie 2021-07-28 262 */
ec8e20fb31430e Jim Cromie 2021-07-28 263 #define DEFINE_DYNAMIC_DEBUG_CATEGORIES(fsname,
var, _desc, ...) \
ec8e20fb31430e Jim Cromie 2021-07-28 264 MODULE_PARM_DESC(fsname, _desc); \
ec8e20fb31430e Jim Cromie 2021-07-28 265 static const struct dyndbg_bitdesc
dyndbg_cats_##fsname[] = \
ec8e20fb31430e Jim Cromie 2021-07-28 266 { __VA_ARGS__, { NULL, NULL } }; \
ec8e20fb31430e Jim Cromie 2021-07-28 @267 module_param_cbd(fsname,
¶m_ops_dyndbg, &var, 0644, \
ec8e20fb31430e Jim Cromie 2021-07-28 268 &dyndbg_cats_##fsname)
ec8e20fb31430e Jim Cromie 2021-07-28 269
:::::: The code at line 267 was first introduced by commit
:::::: ec8e20fb31430e6a18affbddaac7fbe29255ffaa dyndbg: add
DEFINE_DYNAMIC_DEBUG_CATEGORIES and callbacks
:::::: TO: Jim Cromie <jim.cromie(a)gmail.com>
:::::: CC: Jim Cromie <jim.cromie(a)gmail.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org