drivers/net/wireless/mediatek/mt76/mt76x02.h:249:2: note: in expansion of macro 'if'

From: kernel test robot
Date: Mon Jun 22 2020 - 09:49:12 EST

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Hi Ryder,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 625d3449788f85569096780592549d0340e9c0c7
commit: 49e649c3e0a6ec8a12976e331a2c1f29dc7dd3a9 mt76: adjust wcid size to support new 802.11ax generation
date: 6 weeks ago
config: x86_64-randconfig-a003-20200622 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce (this is a W=1 build):
git checkout 49e649c3e0a6ec8a12976e331a2c1f29dc7dd3a9
# save the attached .config to linux build tree
make W=1 ARCH=x86_64

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from include/linux/export.h:43,
from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/net/wireless/mediatek/mt76/mt76x02_util.c:7:
drivers/net/wireless/mediatek/mt76/mt76x02.h: In function 'mt76x02_rx_get_sta':
drivers/net/wireless/mediatek/mt76/mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
--
In file included from include/linux/export.h:43,
from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from drivers/net/wireless/mediatek/mt76/mt76x0/pci.c:6:
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h: In function 'mt76x02_rx_get_sta':
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
--
In file included from include/linux/export.h:43,
from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from drivers/net/wireless/mediatek/mt76/mt76x0/phy.c:9:
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h: In function 'mt76x02_rx_get_sta':
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
drivers/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
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/net/wireless/mediatek/mt76/mt76x0/../mt76x02.h:249:2: note: in expansion of macro 'if'
249 | if (idx >= ARRAY_SIZE(dev->wcid))
| ^~
In file included from drivers/net/wireless/mediatek/mt76/mt76x0/phy.c:16:
At top level:
drivers/net/wireless/mediatek/mt76/mt76x0/initvals.h:218:35: warning: 'mt76x0_dcoc_tab' defined but not used [-Wunused-const-variable=]
218 | static const struct mt76_reg_pair mt76x0_dcoc_tab[] = {
| ^~~~~~~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt76x0/initvals.h:86:35: warning: 'mt76x0_bbp_init_tab' defined but not used [-Wunused-const-variable=]
86 | static const struct mt76_reg_pair mt76x0_bbp_init_tab[] = {
| ^~~~~~~~~~~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt76x0/initvals.h:48:35: warning: 'mt76x0_mac_reg_table' defined but not used [-Wunused-const-variable=]
48 | static const struct mt76_reg_pair mt76x0_mac_reg_table[] = {
| ^~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt76x0/initvals.h:14:35: warning: 'common_mac_reg_table' defined but not used [-Wunused-const-variable=]
14 | static const struct mt76_reg_pair common_mac_reg_table[] = {
| ^~~~~~~~~~~~~~~~~~~~

vim +/if +249 drivers/net/wireless/mediatek/mt76/mt76x02.h

713224164b5dfb drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-09-28 243
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 244 static inline struct mt76x02_sta *
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 245 mt76x02_rx_get_sta(struct mt76_dev *dev, u8 idx)
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 246 {
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 247 struct mt76_wcid *wcid;
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 248
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 @249 if (idx >= ARRAY_SIZE(dev->wcid))
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 250 return NULL;
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 251
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 252 wcid = rcu_dereference(dev->wcid[idx]);
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 253 if (!wcid)
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 254 return NULL;
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 255
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 256 return container_of(wcid, struct mt76x02_sta, wcid);
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 257 }
56e8d4dd5ce24c drivers/net/wireless/mediatek/mt76/mt76x02_util.h Lorenzo Bianconi 2018-10-04 258

:::::: The code at line 249 was first introduced by commit
:::::: 56e8d4dd5ce24cf534114c67de33861e86501981 mt76: move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid in mt76x02_util.h

:::::: TO: Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx>
:::::: CC: Felix Fietkau <nbd@xxxxxxxx>

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

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Next message: Florinel Iordache: "Recall: [PATCH net-next v2 0/9] net: ethernet backplane support on DPAA1"
Previous message: Steven Rostedt: "Re: [PATCH 1/2] tracefs: Remove unnecessary debug_fs checks."
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]