CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
In-Reply-To: <20220511212552.655341-1-bvanass...@acm.org>
References: <20220511212552.655341-1-bvanass...@acm.org>
TO: Bart Van Assche <bvanass...@acm.org>

Hi Bart,

I love your patch! Perhaps something to improve:

[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on jejb-scsi/for-next next-20220513]
[cannot apply to krzk/for-next linus/master v5.18-rc6]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/intel-lab-lkp/linux/commits/Bart-Van-Assche/scsi-ufs-Split-the-drivers-scsi-ufs-directory/20220512-052804
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: i386-randconfig-c001-20220509 
(https://download.01.org/0day-ci/archive/20220514/202205140343.2xpzixya-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 
18dd123c56754edf62c7042dcf23185c3727610f)
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
        # 
https://github.com/intel-lab-lkp/linux/commit/b98a645cfa384db24dba861841b56b9660939aa1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review 
Bart-Van-Assche/scsi-ufs-Split-the-drivers-scsi-ufs-directory/20220512-052804
        git checkout b98a645cfa384db24dba861841b56b9660939aa1
        # save the config file
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 
clang-analyzer 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>


clang-analyzer warnings: (new ones prefixed by >>)
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:457:4: note: Call to function 'memcpy' is insecure as 
it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11
                           memcpy(dst, pat, 2);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:463:4: warning: Call to function 'memcpy' is insecure 
as it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                           memcpy(dst, pat, 3);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:463:4: note: Call to function 'memcpy' is insecure as 
it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11
                           memcpy(dst, pat, 3);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:469:4: warning: Call to function 'memcpy' is insecure 
as it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                           memcpy(dst, pat, 4);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:469:4: note: Call to function 'memcpy' is insecure as 
it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11
                           memcpy(dst, pat, 4);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:475:4: warning: Call to function 'memcpy' is insecure 
as it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                           memcpy(dst, pat, 8);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   sound/core/pcm_misc.c:475:4: note: Call to function 'memcpy' is insecure as 
it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memcpy_s' in case of C11
                           memcpy(dst, pat, 8);
                           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   Suppressed 36 warnings (36 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   80 warnings generated.
   net/ipv6/rpl.c:17:2: warning: Call to function 'memcpy' is insecure as it 
does not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memcpy(dst, daddr, pfx);
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   net/ipv6/rpl.c:17:2: note: Call to function 'memcpy' is insecure as it does 
not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11
           memcpy(dst, daddr, pfx);
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   net/ipv6/rpl.c:18:2: warning: Call to function 'memcpy' is insecure as it 
does not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memcpy(&dst->s6_addr[pfx], post, IPV6_PFXTAIL_LEN(pfx));
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   net/ipv6/rpl.c:18:2: note: Call to function 'memcpy' is insecure as it does 
not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11
           memcpy(&dst->s6_addr[pfx], post, IPV6_PFXTAIL_LEN(pfx));
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   net/ipv6/rpl.c:24:2: warning: Call to function 'memcpy' is insecure as it 
does not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memcpy(dst, &addr->s6_addr[pfx], IPV6_PFXTAIL_LEN(pfx));
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   net/ipv6/rpl.c:24:2: note: Call to function 'memcpy' is insecure as it does 
not provide security checks introduced in the C11 standard. Replace with 
analogous functions that support length arguments or provides boundary checks 
such as 'memcpy_s' in case of C11
           memcpy(dst, &addr->s6_addr[pfx], IPV6_PFXTAIL_LEN(pfx));
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   Suppressed 77 warnings (77 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   45 warnings generated.
   drivers/ufs/host/ufshcd-pci.c:64:2: warning: Call to function 'memcpy' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memcpy(result, obj->buffer.pointer, len);
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   drivers/ufs/host/ufshcd-pci.c:64:2: note: Call to function 'memcpy' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memcpy_s' in case of C11
           memcpy(result, obj->buffer.pointer, len);
           ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
>> drivers/ufs/host/ufshcd-pci.c:84:2: warning: Value stored to 'err' is never 
>> read [clang-analyzer-deadcode.DeadStores]
           err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, 
&intel_host->dsm_fns);
           ^     
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/ufs/host/ufshcd-pci.c:84:2: note: Value stored to 'err' is never read
           err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, 
&intel_host->dsm_fns);
           ^     
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/ufs/host/ufshcd-pci.c:158:3: warning: Call to function 'memcpy' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memcpy_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   memcpy(dev_req_params, dev_max_params, 
sizeof(*dev_req_params));
                   ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   drivers/ufs/host/ufshcd-pci.c:158:3: note: Call to function 'memcpy' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memcpy_s' in case of C11
                   memcpy(dev_req_params, dev_max_params, 
sizeof(*dev_req_params));
                   ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^~~~~~~~~~~~~~~~
   Suppressed 42 warnings (42 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   43 warnings generated.
   Suppressed 43 warnings (43 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   43 warnings generated.
   Suppressed 43 warnings (43 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   43 warnings generated.
   Suppressed 43 warnings (43 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   44 warnings generated.
   Suppressed 44 warnings (44 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   37 warnings generated.
   74 warnings generated.
   111 warnings generated.
   Suppressed 111 warnings (108 in non-user code, 3 with check filters).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   36 warnings generated.
   Suppressed 36 warnings (36 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   45 warnings generated.
   Suppressed 45 warnings (45 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   44 warnings generated.
   Suppressed 44 warnings (44 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   38 warnings generated.
   Suppressed 38 warnings (38 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   45 warnings generated.
   sound/soc/codecs/wm8580.c:475:2: warning: Call to function 'memset' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memset_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memset(&pll_div, 0, sizeof(pll_div));
           ^
   arch/x86/include/asm/string_32.h:195:29: note: expanded from macro 'memset'
   #define memset(s, c, count) __builtin_memset(s, c, count)
                               ^~~~~~~~~~~~~~~~
   sound/soc/codecs/wm8580.c:475:2: note: Call to function 'memset' is insecure 
as it does not provide security checks introduced in the C11 standard. Replace 
with analogous functions that support length arguments or provides boundary 
checks such as 'memset_s' in case of C11
           memset(&pll_div, 0, sizeof(pll_div));
           ^
   arch/x86/include/asm/string_32.h:195:29: note: expanded from macro 'memset'
   #define memset(s, c, count) __builtin_memset(s, c, count)
                               ^~~~~~~~~~~~~~~~
   Suppressed 44 warnings (44 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   45 warnings generated.
   Suppressed 45 warnings (45 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   45 warnings generated.
   Suppressed 45 warnings (45 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   21 warnings generated.
   sound/synth/emux/emux_seq.c:77:2: warning: Call to function 'memset' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memset_s' in case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
           memset(&pinfo, 0, sizeof(pinfo));
           ^
   arch/x86/include/asm/string_32.h:195:29: note: expanded from macro 'memset'
   #define memset(s, c, count) __builtin_memset(s, c, count)
                               ^~~~~~~~~~~~~~~~
   sound/synth/emux/emux_seq.c:77:2: note: Call to function 'memset' is 
insecure as it does not provide security checks introduced in the C11 standard. 
Replace with analogous functions that support length arguments or provides 
boundary checks such as 'memset_s' in case of C11
           memset(&pinfo, 0, sizeof(pinfo));
           ^
   arch/x86/include/asm/string_32.h:195:29: note: expanded from macro 'memset'
   #define memset(s, c, count) __builtin_memset(s, c, count)
                               ^~~~~~~~~~~~~~~~
   sound/synth/emux/emux_seq.c:86:3: warning: Call to function 'sprintf' is 
insecure as it does not provide bounding of the memory buffer or security 
checks introduced in the C11 standard. Replace with analogous functions that 
support length arguments or provides boundary checks such as 'sprintf_s' in 
case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   sprintf(tmpname, "%s Port %d", emu->name, i);
                   ^~~~~~~
   sound/synth/emux/emux_seq.c:86:3: note: Call to function 'sprintf' is 
insecure as it does not provide bounding of the memory buffer or security 
checks introduced in the C11 standard. Replace with analogous functions that 
support length arguments or provides boundary checks such as 'sprintf_s' in 
case of C11
                   sprintf(tmpname, "%s Port %d", emu->name, i);
                   ^~~~~~~
   sound/synth/emux/emux_seq.c:370:3: warning: Call to function 'sprintf' is 
insecure as it does not provide bounding of the memory buffer or security 
checks introduced in the C11 standard. Replace with analogous functions that 
support length arguments or provides boundary checks such as 'sprintf_s' in 
case of C11 
[clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   sprintf(rmidi->name, "%s Synth MIDI", emu->name);
                   ^~~~~~~
   sound/synth/emux/emux_seq.c:370:3: note: Call to function 'sprintf' is 
insecure as it does not provide bounding of the memory buffer or security 
checks introduced in the C11 standard. Replace with analogous functions that 
support length arguments or provides boundary checks such as 'sprintf_s' in 
case of C11
                   sprintf(rmidi->name, "%s Synth MIDI", emu->name);
                   ^~~~~~~
   Suppressed 18 warnings (18 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   18 warnings generated.
   Suppressed 18 warnings (18 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   43 warnings generated.

vim +/err +84 drivers/ufs/host/ufshcd-pci.c

b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  79  
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  80  
static void intel_dsm_init(struct intel_host *intel_host, struct device *dev)
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  81  {
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  82       
int err;
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  83  
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12 @84       
err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  85       
dev_dbg(dev, "DSM fns %#x, error %d\n", intel_host->dsm_fns, err);
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  86  }
b2c57925df1ffc drivers/scsi/ufs/ufshcd-pci.c Adrian Hunter 2021-03-12  87  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp
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