drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:2: note: in expansion of macro 'if'

From: kernel test robot
Date: Mon Jul 06 2020 - 14:18:29 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5c82ec00dd00c7a2b02d4b42cf59ae87592cb75f
commit: d40605b6d088b20827e442903022c65f0f165c84 drm/amd/display: Implement generic MUX registers (v2)
date: 12 months ago
config: microblaze-randconfig-r022-20200706 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
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
git checkout d40605b6d088b20827e442903022c65f0f165c84
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze

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

All warnings (new ones prefixed by >>):

In file included from include/asm-generic/bug.h:5,
from ./arch/microblaze/include/generated/asm/bug.h:1,
from include/linux/bug.h:5,
from include/linux/mmdebug.h:5,
from include/linux/gfp.h:5,
from include/linux/slab.h:15,
from drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:26:
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c: In function 'dal_hw_generic_create':
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^
include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
| ^~~~
>> drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:2: note: in expansion of macro 'if'
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^~
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^
include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
| ^~~~
>> drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:2: note: in expansion of macro 'if'
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^~
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^
include/linux/compiler.h:69:3: note: in definition of macro '__trace_if_value'
69 | (cond) ? \
| ^~~~
include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var'
56 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
| ^~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:121:2: note: in expansion of macro 'if'
121 | if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {
| ^~
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:29,
from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:37,
from drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:28:
At top level:
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
| ^~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
| ^~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
| ^~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
| ^~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
| ^~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
| ^~~~~~~~~~~~~

vim +/if +121 drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c

108
109 struct hw_gpio_pin *dal_hw_generic_create(
110 struct dc_context *ctx,
111 enum gpio_id id,
112 uint32_t en)
113 {
114 struct hw_generic *generic;
115
116 if (id != GPIO_ID_GENERIC) {
117 ASSERT_CRITICAL(false);
118 return NULL;
119 }
120
> 121 if ((en < GPIO_GENERIC_MIN) || (en > GPIO_GENERIC_MAX)) {

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

Attachment: .config.gz
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