include/linux/compiler.h:69:46: warning: 'fw_entry' is used uninitialized
From: kernel test robot
Date: Thu Jul 06 2023 - 21:57:53 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a452483508d7b70b0f6c69e249ec0b3ea2330b5c
commit: ef3bcde75d06d65f78ba38a30d5a87fb83a5cdae ASoC: tas2781: Add tas2781 driver
date: 3 weeks ago
config: sh-randconfig-r033-20230707 (https://download.01.org/0day-ci/archive/20230707/202307070922.doxi1HFc-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230707/202307070922.doxi1HFc-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307070922.doxi1HFc-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
In file included from include/linux/firmware.h:6,
from sound/soc/codecs/tas2781-fmwlib.c:10:
include/linux/compiler.h: In function 'tas2781_load_calibration':
>> include/linux/compiler.h:69:46: warning: 'fw_entry' is used uninitialized [-Wuninitialized]
69 | (__if_trace.miss_hit[1]++,1) : \
| ^
sound/soc/codecs/tas2781-fmwlib.c:1911:32: note: 'fw_entry' was declared here
1911 | const struct firmware *fw_entry;
| ^~~~~~~~
vim +/fw_entry +69 include/linux/compiler.h
a15fd609ad53a6 Linus Torvalds 2019-03-20 58
a15fd609ad53a6 Linus Torvalds 2019-03-20 59 #define __trace_if_value(cond) ({ \
2bcd521a684cc9 Steven Rostedt 2008-11-21 60 static struct ftrace_branch_data \
e04462fb82f8dd Miguel Ojeda 2018-09-03 61 __aligned(4) \
33def8498fdde1 Joe Perches 2020-10-21 62 __section("_ftrace_branch") \
a15fd609ad53a6 Linus Torvalds 2019-03-20 63 __if_trace = { \
2bcd521a684cc9 Steven Rostedt 2008-11-21 64 .func = __func__, \
2bcd521a684cc9 Steven Rostedt 2008-11-21 65 .file = __FILE__, \
2bcd521a684cc9 Steven Rostedt 2008-11-21 66 .line = __LINE__, \
2bcd521a684cc9 Steven Rostedt 2008-11-21 67 }; \
a15fd609ad53a6 Linus Torvalds 2019-03-20 68 (cond) ? \
a15fd609ad53a6 Linus Torvalds 2019-03-20 @69 (__if_trace.miss_hit[1]++,1) : \
a15fd609ad53a6 Linus Torvalds 2019-03-20 70 (__if_trace.miss_hit[0]++,0); \
a15fd609ad53a6 Linus Torvalds 2019-03-20 71 })
a15fd609ad53a6 Linus Torvalds 2019-03-20 72
:::::: The code at line 69 was first introduced by commit
:::::: a15fd609ad53a631a927c6680e8fb606f42a712b tracing: Simplify "if" macro code
:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
:::::: CC: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
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