[kbuild] [ceph-client:wip-fscrypt 29/63] fs/ceph/mds_client.c:3915:19: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]

2022-02-21 Thread kernel test robot 
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
CC: ceph-de...@vger.kernel.org
TO: Jeff Layton 

tree:   https://github.com/ceph/ceph-client.git wip-fscrypt
head:   4ec0d0e0cc68c6525ace02e7a8a5bb57a4242997
commit: 16a6682845642c1929a94e826c4426c22ef909d4 [29/63] ceph: add encrypted 
fname handling to ceph_mdsc_build_path
:: branch date: 2 days ago
:: commit date: 2 days ago
config: x86_64-randconfig-c007 
(https://download.01.org/0day-ci/archive/20220222/202202220447.nspdr0sv-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 
d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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/ceph/ceph-client/commit/16a6682845642c1929a94e826c4426c22ef909d4
git remote add ceph-client https://github.com/ceph/ceph-client.git
git fetch --no-tags ceph-client wip-fscrypt
git checkout 16a6682845642c1929a94e826c4426c22ef909d4
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 
clang-analyzer 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


clang-analyzer warnings: (new ones prefixed by >>)
   Suppressed 3 warnings (3 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.
   5 warnings generated.
   arch/x86/include/asm/paravirt.h:55:2: warning: Assigned value is garbage or 
undefined [clang-analyzer-core.uninitialized.Assign]
   PVOP_VCALL0(cpu.io_delay);
   ^
   arch/x86/include/asm/paravirt_types.h:512:2: note: expanded from macro 
'PVOP_VCALL0'
   __PVOP_VCALL(op)
   ^
   arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro 
'__PVOP_VCALL'
   (void)PVOP_CALL(, op, CLBR_ANY, PVOP_VCALL_CLOBBERS,\
 ^
   arch/x86/include/asm/paravirt_types.h:447:3: note: expanded from macro 
'PVOP_CALL'
   PVOP_CALL_ARGS; \
   ^
   arch/x86/include/asm/paravirt_types.h:405:16: note: expanded from macro 
'PVOP_CALL_ARGS'
   unsigned long __edi = __edi, __esi = __esi, \
 ^
   drivers/usb/host/pci-quirks.c:509:2: note: Calling 'usb_amd_quirk_pll'
   usb_amd_quirk_pll(0);
   ^~~~
   drivers/usb/host/pci-quirks.c:343:12: note: 'disable' is 0
   u32 bit = disable ? 0 : 1;
 ^~~
   drivers/usb/host/pci-quirks.c:343:12: note: '?' condition is false
   drivers/usb/host/pci-quirks.c:346:2: note: Loop condition is false.  Exiting 
loop
   spin_lock_irqsave(&amd_lock, flags);
   ^
   include/linux/spinlock.h:379:2: note: expanded from macro 'spin_lock_irqsave'
   raw_spin_lock_irqsave(spinlock_check(lock), flags); \
   ^
   include/linux/spinlock.h:240:2: note: expanded from macro 
'raw_spin_lock_irqsave'
   do {\
   ^
   drivers/usb/host/pci-quirks.c:346:2: note: Loop condition is false.  Exiting 
loop
   spin_lock_irqsave(&amd_lock, flags);
   ^
   include/linux/spinlock.h:377:43: note: expanded from macro 
'spin_lock_irqsave'
   #define spin_lock_irqsave(lock, flags)  \
   ^
   drivers/usb/host/pci-quirks.c:348:6: note: 'disable' is 0
   if (disable) {
   ^~~
   drivers/usb/host/pci-quirks.c:348:2: note: Taking false branch
   if (disable) {
   ^
   drivers/usb/host/pci-quirks.c:356:7: note: Assuming field 'isoc_reqs' is <= 0
   if (amd_chipset.isoc_reqs > 0) {
   ^
   drivers/usb/host/pci-quirks.c:356:3: note: Taking false branch
   if (amd_chipset.isoc_reqs > 0) {
   ^
   drivers/usb/host/pci-quirks.c:362:6: note: Assuming field 'gen' is equal to 
AMD_CHIPSET_SB800
   if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 ||
   ^~~~
   drivers/usb/host/pci-quirks.c:362:51: note: Left side of '||' is true
   if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 ||
^
   drivers/usb/host/pci-quirks.c:365:3: note: Calling 'outb_p'
   outb_p(AB_REG_BAR_LOW, 0xcd6);
   ^
   arch/x86/include/asm/io.h:337:16: note: expanded from macro 'outb_p'
   #define outb_p outb_p
  ^
   arch/x86/include/asm/io.h:320:1: note: Calling 'slow_down_io'
   BUILDIO(b, b, char)
   ^
   arch/x86/include/asm/io.h:278:2: note: expanded f

[kbuild] [ceph-client:wip-fscrypt 29/63] fs/ceph/mds_client.c:3915:19: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]

2022-02-20 Thread kernel test robot 
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
CC: ceph-de...@vger.kernel.org
TO: Jeff Layton 

tree:   https://github.com/ceph/ceph-client.git wip-fscrypt
head:   4ec0d0e0cc68c6525ace02e7a8a5bb57a4242997
commit: 16a6682845642c1929a94e826c4426c22ef909d4 [29/63] ceph: add encrypted 
fname handling to ceph_mdsc_build_path
:: branch date: 33 hours ago
:: commit date: 33 hours ago
config: x86_64-randconfig-c007 
(https://download.01.org/0day-ci/archive/20220221/202202210649.1d2hrquz-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 
d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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/ceph/ceph-client/commit/16a6682845642c1929a94e826c4426c22ef909d4
git remote add ceph-client https://github.com/ceph/ceph-client.git
git fetch --no-tags ceph-client wip-fscrypt
git checkout 16a6682845642c1929a94e826c4426c22ef909d4
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 
clang-analyzer 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


clang-analyzer warnings: (new ones prefixed by >>)
   fs/notify/fanotify/fanotify_user.c:1598:24: note: Left side of '&&' is false
   if (mask & FAN_RENAME && !(fid_mode & FAN_REPORT_NAME))
 ^
   fs/notify/fanotify/fanotify_user.c:1601:6: note: Assuming the condition is 
false
   if (flags & FAN_MARK_FLUSH) {
   ^~
   fs/notify/fanotify/fanotify_user.c:1601:2: note: Taking false branch
   if (flags & FAN_MARK_FLUSH) {
   ^
   fs/notify/fanotify/fanotify_user.c:1614:6: note: Assuming 'ret' is 0
   if (ret)
   ^~~
   fs/notify/fanotify/fanotify_user.c:1614:2: note: Taking false branch
   if (ret)
   ^
   fs/notify/fanotify/fanotify_user.c:1617:6: note: Assuming the condition is 
false
   if (flags & FAN_MARK_ADD) {
   ^~~~
   fs/notify/fanotify/fanotify_user.c:1617:2: note: Taking false branch
   if (flags & FAN_MARK_ADD) {
   ^
   fs/notify/fanotify/fanotify_user.c:1623:6: note: Assuming 'fid_mode' is 0
   if (fid_mode) {
   ^~~~
   fs/notify/fanotify/fanotify_user.c:1623:2: note: Taking false branch
   if (fid_mode) {
   ^
   fs/notify/fanotify/fanotify_user.c:1636:6: note: 'mark_type' is not equal to 
FAN_MARK_INODE
   if (mark_type == FAN_MARK_INODE)
   ^
   fs/notify/fanotify/fanotify_user.c:1636:2: note: Taking false branch
   if (mark_type == FAN_MARK_INODE)
   ^
   fs/notify/fanotify/fanotify_user.c:1642:6: note: Assuming 'mnt' is null
   if (mnt || !S_ISDIR(inode->i_mode)) {
   ^~~
   fs/notify/fanotify/fanotify_user.c:1642:6: note: Left side of '||' is false
   fs/notify/fanotify/fanotify_user.c:1642:14: note: Access to field 'i_mode' 
results in a dereference of a null pointer (loaded from variable 'inode')
   if (mnt || !S_ISDIR(inode->i_mode)) {
   ^
   include/uapi/linux/stat.h:23:22: note: expanded from macro 'S_ISDIR'
   #define S_ISDIR(m)  (((m) & S_IFMT) == S_IFDIR)
 ^~
   Suppressed 6 warnings (6 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.
   4 warnings generated.
   Suppressed 4 warnings (4 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.
   4 warnings generated.
   Suppressed 4 warnings (4 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.
   4 warnings generated.
   Suppressed 4 warnings (4 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.
   4 warnings generated.
   Suppressed 4 warnings (4 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.
   6 warnings generated.
   drivers/acpi/power.c:951:2: warning: Call to function 'strcpy' is insecure 
as it does not provide bounding of the memory buffer. Replace unbounded copy 
functions with analogous functions that support length arguments such as 
'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
   strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
   ^~
   drivers/acpi/power.c:951:2: note: Call to function 'st