From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Zong Li <zong.li@sifive.com>,
palmer@dabbelt.com, paul.walmsley@sifive.com,
david.abdurachmanov@sifive.com, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Palmer Dabbelt <palmerdabbelt@google.com>,
kbuild-all@lists.01.org, lkp@intel.com,
Zong Li <zong.li@sifive.com>
Subject: Re: [PATCH v2 3/3] riscv: Add cache information in AUX vector
Date: Mon, 31 Aug 2020 14:59:38 +0300 [thread overview]
Message-ID: <20200831115938.GG8299@kadam> (raw)
In-Reply-To: <f9199795d6e9bae73f49583c494505e0a4983c61.1598515355.git.zong.li@sifive.com>
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Hi Zong,
url: https://github.com/0day-ci/linux/commits/Zong-Li/Get-cache-information-from-userland/20200827-162439
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 15bc20c6af4ceee97a1f90b43c0e386643c071b4
config: riscv-randconfig-m031-20200828 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/riscv/kernel/cacheinfo.c:55 get_cache_geometry() warn: variable dereferenced before check 'this_leaf' (see line 52)
# https://github.com/0day-ci/linux/commit/a51c248ba0626069792c3f84c8879f685f4a1ff6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Zong-Li/Get-cache-information-from-userland/20200827-162439
git checkout a51c248ba0626069792c3f84c8879f685f4a1ff6
vim +/this_leaf +55 arch/riscv/kernel/cacheinfo.c
a51c248ba06260 Zong Li 2020-08-27 49 uintptr_t get_cache_geometry(u32 level, enum cache_type type)
a51c248ba06260 Zong Li 2020-08-27 50 {
a51c248ba06260 Zong Li 2020-08-27 51 struct cacheinfo *this_leaf = get_cacheinfo(level, type);
a51c248ba06260 Zong Li 2020-08-27 @52 uintptr_t ret = (this_leaf->ways_of_associativity << 16 |
a51c248ba06260 Zong Li 2020-08-27 53 this_leaf->coherency_line_size);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dereferenced
a51c248ba06260 Zong Li 2020-08-27 54
a51c248ba06260 Zong Li 2020-08-27 @55 return this_leaf ? ret : 0;
^^^^^^^^^
Checked too late.
a51c248ba06260 Zong Li 2020-08-27 56 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org
Subject: Re: [PATCH v2 3/3] riscv: Add cache information in AUX vector
Date: Mon, 31 Aug 2020 14:59:38 +0300 [thread overview]
Message-ID: <20200831115938.GG8299@kadam> (raw)
In-Reply-To: <f9199795d6e9bae73f49583c494505e0a4983c61.1598515355.git.zong.li@sifive.com>
[-- Attachment #1: Type: text/plain, Size: 1877 bytes --]
Hi Zong,
url: https://github.com/0day-ci/linux/commits/Zong-Li/Get-cache-information-from-userland/20200827-162439
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 15bc20c6af4ceee97a1f90b43c0e386643c071b4
config: riscv-randconfig-m031-20200828 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/riscv/kernel/cacheinfo.c:55 get_cache_geometry() warn: variable dereferenced before check 'this_leaf' (see line 52)
# https://github.com/0day-ci/linux/commit/a51c248ba0626069792c3f84c8879f685f4a1ff6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Zong-Li/Get-cache-information-from-userland/20200827-162439
git checkout a51c248ba0626069792c3f84c8879f685f4a1ff6
vim +/this_leaf +55 arch/riscv/kernel/cacheinfo.c
a51c248ba06260 Zong Li 2020-08-27 49 uintptr_t get_cache_geometry(u32 level, enum cache_type type)
a51c248ba06260 Zong Li 2020-08-27 50 {
a51c248ba06260 Zong Li 2020-08-27 51 struct cacheinfo *this_leaf = get_cacheinfo(level, type);
a51c248ba06260 Zong Li 2020-08-27 @52 uintptr_t ret = (this_leaf->ways_of_associativity << 16 |
a51c248ba06260 Zong Li 2020-08-27 53 this_leaf->coherency_line_size);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dereferenced
a51c248ba06260 Zong Li 2020-08-27 54
a51c248ba06260 Zong Li 2020-08-27 @55 return this_leaf ? ret : 0;
^^^^^^^^^
Checked too late.
a51c248ba06260 Zong Li 2020-08-27 56 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH v2 3/3] riscv: Add cache information in AUX vector
Date: Mon, 31 Aug 2020 14:59:38 +0300 [thread overview]
Message-ID: <20200831115938.GG8299@kadam> (raw)
In-Reply-To: <f9199795d6e9bae73f49583c494505e0a4983c61.1598515355.git.zong.li@sifive.com>
[-- Attachment #1: Type: text/plain, Size: 1877 bytes --]
Hi Zong,
url: https://github.com/0day-ci/linux/commits/Zong-Li/Get-cache-information-from-userland/20200827-162439
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 15bc20c6af4ceee97a1f90b43c0e386643c071b4
config: riscv-randconfig-m031-20200828 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/riscv/kernel/cacheinfo.c:55 get_cache_geometry() warn: variable dereferenced before check 'this_leaf' (see line 52)
# https://github.com/0day-ci/linux/commit/a51c248ba0626069792c3f84c8879f685f4a1ff6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Zong-Li/Get-cache-information-from-userland/20200827-162439
git checkout a51c248ba0626069792c3f84c8879f685f4a1ff6
vim +/this_leaf +55 arch/riscv/kernel/cacheinfo.c
a51c248ba06260 Zong Li 2020-08-27 49 uintptr_t get_cache_geometry(u32 level, enum cache_type type)
a51c248ba06260 Zong Li 2020-08-27 50 {
a51c248ba06260 Zong Li 2020-08-27 51 struct cacheinfo *this_leaf = get_cacheinfo(level, type);
a51c248ba06260 Zong Li 2020-08-27 @52 uintptr_t ret = (this_leaf->ways_of_associativity << 16 |
a51c248ba06260 Zong Li 2020-08-27 53 this_leaf->coherency_line_size);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dereferenced
a51c248ba06260 Zong Li 2020-08-27 54
a51c248ba06260 Zong Li 2020-08-27 @55 return this_leaf ? ret : 0;
^^^^^^^^^
Checked too late.
a51c248ba06260 Zong Li 2020-08-27 56 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
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WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Zong Li <zong.li@sifive.com>,
palmer@dabbelt.com, paul.walmsley@sifive.com,
david.abdurachmanov@sifive.com, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: lkp@intel.com, kbuild-all@lists.01.org,
Zong Li <zong.li@sifive.com>,
Palmer Dabbelt <palmerdabbelt@google.com>
Subject: Re: [PATCH v2 3/3] riscv: Add cache information in AUX vector
Date: Mon, 31 Aug 2020 14:59:38 +0300 [thread overview]
Message-ID: <20200831115938.GG8299@kadam> (raw)
In-Reply-To: <f9199795d6e9bae73f49583c494505e0a4983c61.1598515355.git.zong.li@sifive.com>
[-- Attachment #1: Type: text/plain, Size: 1837 bytes --]
Hi Zong,
url: https://github.com/0day-ci/linux/commits/Zong-Li/Get-cache-information-from-userland/20200827-162439
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 15bc20c6af4ceee97a1f90b43c0e386643c071b4
config: riscv-randconfig-m031-20200828 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/riscv/kernel/cacheinfo.c:55 get_cache_geometry() warn: variable dereferenced before check 'this_leaf' (see line 52)
# https://github.com/0day-ci/linux/commit/a51c248ba0626069792c3f84c8879f685f4a1ff6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Zong-Li/Get-cache-information-from-userland/20200827-162439
git checkout a51c248ba0626069792c3f84c8879f685f4a1ff6
vim +/this_leaf +55 arch/riscv/kernel/cacheinfo.c
a51c248ba06260 Zong Li 2020-08-27 49 uintptr_t get_cache_geometry(u32 level, enum cache_type type)
a51c248ba06260 Zong Li 2020-08-27 50 {
a51c248ba06260 Zong Li 2020-08-27 51 struct cacheinfo *this_leaf = get_cacheinfo(level, type);
a51c248ba06260 Zong Li 2020-08-27 @52 uintptr_t ret = (this_leaf->ways_of_associativity << 16 |
a51c248ba06260 Zong Li 2020-08-27 53 this_leaf->coherency_line_size);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dereferenced
a51c248ba06260 Zong Li 2020-08-27 54
a51c248ba06260 Zong Li 2020-08-27 @55 return this_leaf ? ret : 0;
^^^^^^^^^
Checked too late.
a51c248ba06260 Zong Li 2020-08-27 56 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next prev parent reply other threads:[~2020-08-31 13:16 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 8:22 [PATCH v2 0/3] Get cache information from userland Zong Li
2020-08-27 8:22 ` Zong Li
2020-08-27 8:22 ` [PATCH v2 1/3] riscv: Set more data to cacheinfo Zong Li
2020-08-27 8:22 ` Zong Li
2020-08-27 8:22 ` [PATCH v2 2/3] riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO Zong Li
2020-08-27 8:22 ` Zong Li
2020-08-27 8:22 ` [PATCH v2 3/3] riscv: Add cache information in AUX vector Zong Li
2020-08-27 8:22 ` Zong Li
2020-08-28 4:45 ` kernel test robot
2020-08-28 4:45 ` kernel test robot
2020-08-28 4:45 ` kernel test robot
2020-08-31 11:59 ` Dan Carpenter [this message]
2020-08-31 11:59 ` Dan Carpenter
2020-08-31 11:59 ` Dan Carpenter
2020-08-31 11:59 ` Dan Carpenter
2020-09-04 19:17 ` [PATCH v2 0/3] Get cache information from userland Palmer Dabbelt
2020-09-04 19:17 ` Palmer Dabbelt
-- strict thread matches above, loose matches on Subject: below --
2020-08-27 23:27 [PATCH v2 3/3] riscv: Add cache information in AUX vector kernel test robot
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