From: kernel test robot <lkp@intel.com>
To: jasperwang@tencent.com, kaixuxia@tencent.com,
frankjpliu@tencent.com, kasong@tencent.com,
sagazchen@tencent.com, kernelxing@tencent.com,
aurelianliu@tencent.com, jason.zeng@intel.com,
wu.zheng@intel.com, yingbao.jia@intel.com, pei.p.jia@intel.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [opencloudos:next 6599/6620] drivers/crypto/ccp/hygon/tdm-dev.c:93:13: warning: variable 'ret' set but not used
Date: Wed, 15 May 2024 15:40:19 +0800 [thread overview]
Message-ID: <202405151512.NWtdOFHk-lkp@intel.com> (raw)
tree: https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git next
head: 24bcde27d3b11d99cdceaa28d2ba6213e1678e90
commit: 0e593db3fec9ea1f08b5b2b37f7c0b7147086858 [6599/6620] newfeature: crypto: tdm: Add Hygon TDM driver
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240515/202405151512.NWtdOFHk-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240515/202405151512.NWtdOFHk-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405151512.NWtdOFHk-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/crypto/ccp/hygon/tdm-dev.c: In function 'list_enqueue':
>> drivers/crypto/ccp/hygon/tdm-dev.c:93:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
93 | int ret = 0;
| ^~~
drivers/crypto/ccp/hygon/tdm-dev.c: In function 'psp_create_measure_task':
>> drivers/crypto/ccp/hygon/tdm-dev.c:605:27: warning: variable 'head' set but not used [-Wunused-but-set-variable]
605 | struct list_head *head = NULL;
| ^~~~
In file included from include/linux/string.h:294,
from include/linux/bitmap.h:11,
from include/linux/cpumask.h:12,
from arch/x86/include/asm/paravirt.h:17,
from arch/x86/include/asm/cpuid.h:62,
from arch/x86/include/asm/processor.h:19,
from arch/x86/include/asm/timex.h:5,
from include/linux/timex.h:67,
from include/linux/time32.h:13,
from include/linux/time.h:60,
from include/linux/stat.h:19,
from include/linux/module.h:13,
from drivers/crypto/ccp/hygon/tdm-dev.c:10:
In function 'fortify_memcpy_chk',
inlined from 'tdm_get_vpcr_audit' at drivers/crypto/ccp/hygon/tdm-dev.c:1362:2:
include/linux/fortify-string.h:592:25: warning: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
592 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/ret +93 drivers/crypto/ccp/hygon/tdm-dev.c
90
91 static int list_enqueue(void *entry)
92 {
> 93 int ret = 0;
94 struct list_head *head, *entry_list = NULL;
95 rwlock_t *lock = NULL;
96
97 if (!entry) {
98 ret = -DYN_NULL_POINTER;
99 pr_err("Null pointer\n");
100 goto end;
101 }
102
103 head = &dyn_head.head;
104 lock = &dyn_head.lock;
105 entry_list = &(((struct tdm_task_ctx *)entry)->list);
106
107 write_lock(lock);
108 if (entry_list)
109 list_add_tail(entry_list, head);
110 write_unlock(lock);
111
112 end:
113 return 0;
114 }
115
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2024-05-15 7:40 UTC|newest]
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