[kbuild] Re: [RFC PATCH 2/2] acpi/pci_root: negotiate CXL _OSC
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
In-Reply-To: <20220317002704.1835870-3-vishal.l.ve...@intel.com>
References: <20220317002704.1835870-3-vishal.l.ve...@intel.com>
TO: Vishal Verma
Hi Vishal,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on 74be98774dfbc5b8b795db726bd772e735d2edd4]
url:
https://github.com/0day-ci/linux/commits/Vishal-Verma/acpi-add-support-for-CXL-_OSC/20220317-082840
base: 74be98774dfbc5b8b795db726bd772e735d2edd4
:: branch date: 5 hours ago
:: commit date: 5 hours ago
config: x86_64-randconfig-m001
(https://download.01.org/0day-ci/archive/20220317/202203171337.1o6vuotj-...@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
drivers/acpi/pci_root.c:450 acpi_pci_osc_control_set() error: uninitialized
symbol 'cxl_ctrl'.
drivers/acpi/pci_root.c:564 calculate_cxl_control() error: uninitialized symbol
'control'.
drivers/acpi/pci_root.c:619 negotiate_os_control() error: uninitialized symbol
'cxl_support'.
Old smatch warnings:
drivers/acpi/pci_root.c:453 acpi_pci_osc_control_set() error: uninitialized
symbol 'cxl_ctrl'.
drivers/acpi/pci_root.c:466 acpi_pci_osc_control_set() error: uninitialized
symbol 'cxl_ctrl'.
drivers/acpi/pci_root.c:480 acpi_pci_osc_control_set() error: uninitialized
symbol 'cxl_ctrl'.
vim +/cxl_ctrl +450 drivers/acpi/pci_root.c
2f7bbceb5b6aa93 Alexander Chiang 2009-06-10 401
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 402 /**
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 403 *
acpi_pci_osc_control_set - Request control of PCI root _OSC features.
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 404 * @handle: ACPI
handle of a PCI root bridge (or PCIe Root Complex).
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 405 * @mask: Mask of
_OSC bits to request control of, place to store control mask.
843438deebe247f Yang Li2021-12-23 406 * @support: _OSC
supported capability.
8020d862c22d52b Vishal Verma 2022-03-16 407 * @cxl_mask: Mask
of CXL _OSC control bits, place to store control mask.
8020d862c22d52b Vishal Verma 2022-03-16 408 * @cxl_support:
CXL _OSC supported capability.
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 409 *
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 410 * Run _OSC query
for @mask and if that is successful, compare the returned
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 411 * mask of control
bits with @req. If all of the @req bits are set in the
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 412 * returned mask,
run _OSC request for it.
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 413 *
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 414 * The variable at
the @mask address may be modified regardless of whether or
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 415 * not the function
returns success. On success it will contain the mask of
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 416 * _OSC bits the
BIOS has granted control of, but its contents are meaningless
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 417 * on failure.
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 418 **/
8020d862c22d52b Vishal Verma 2022-03-16 419 static acpi_status
acpi_pci_osc_control_set(acpi_handle handle, u32 *mask,
8020d862c22d52b Vishal Verma 2022-03-16 420
u32 support, u32 *cxl_mask,
8020d862c22d52b Vishal Verma 2022-03-16 421
u32 cxl_support)
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 422 {
6bc779ee05d4fa6 Joerg Roedel 2021-08-24 423 u32 req =
OSC_PCI_EXPRESS_CAPABILITY_CONTROL;
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 424 struct
acpi_pci_root *root;
866e61fc40c96e7 Bjorn Helgaas 2020-06-02 425 acpi_status
status;
8020d862c22d52b Vishal Verma 2022-03-16 426 u32 ctrl,
cxl_ctrl, capbuf[8];
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 427
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 428 if (!mask)
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 429 return
AE_BAD_PARAMETER;
75fb60f26befb59 Rafael J. Wysocki 2010-08-23 430
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 431 root =
acpi_pci_find_root(handle);
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 432 if (!root)
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 433 return
AE_NOT_EXIST;
63f10f0f6df4e4e Kenji Kaneshige2009-02-09 434
6bc779ee05d4fa6 Joerg Roedel 2021-08-24 435 ctrl = *mask;
6bc779ee05d4
kbuild@lists.01.org
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Cai Huoqing
CC: "Marc Kleine-Budde"
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: ac4224087312d7212bd3411f1e393f4b7cb1ff15 can: rcar: Kconfig: Add helper
dependency on COMPILE_TEST
date: 7 months ago
:: branch date: 34 hours ago
:: commit date: 7 months ago
config: m68k-randconfig-m031-20220317
(https://download.01.org/0day-ci/archive/20220317/202203171122.ssh7ns9h-...@intel.com/config)
compiler: m68k-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
drivers/net/can/rcar/rcar_can.c:256 rcar_can_error() warn: assigning (-65) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:308 rcar_can_error() warn: assigning (-2) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
Old smatch warnings:
drivers/net/can/rcar/rcar_can.c:263 rcar_can_error() warn: assigning (-33) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:270 rcar_can_error() warn: assigning (-17) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:277 rcar_can_error() warn: assigning (-9) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:284 rcar_can_error() warn: assigning (-5) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:293 rcar_can_error() warn: assigning (-3) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:300 rcar_can_error() warn: assigning (-2) to
unsigned variable '(*(isa_mtb((&priv->regs->ecsr'
drivers/net/can/rcar/rcar_can.c:315 rcar_can_error() warn: assigning (-3) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
drivers/net/can/rcar/rcar_can.c:325 rcar_can_error() warn: assigning (-5) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
drivers/net/can/rcar/rcar_can.c:337 rcar_can_error() warn: assigning (-9) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
drivers/net/can/rcar/rcar_can.c:347 rcar_can_error() warn: assigning (-33) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
drivers/net/can/rcar/rcar_can.c:358 rcar_can_error() warn: assigning (-65) to
unsigned variable '(*(isa_mtb((&priv->regs->eifr'
vim +256 drivers/net/can/rcar/rcar_can.c
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 222
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 223
static void rcar_can_error(struct net_device *ndev)
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 224
{
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 225
struct rcar_can_priv *priv = netdev_priv(ndev);
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 226
struct net_device_stats *stats = &ndev->stats;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 227
struct can_frame *cf;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 228
struct sk_buff *skb;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 229
u8 eifr, txerr = 0, rxerr = 0;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 230
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 231
/* Propagate the error condition to the CAN stack */
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 232
skb = alloc_can_err_skb(ndev, &cf);
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 233
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 234
eifr = readb(&priv->regs->eifr);
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 235
if (eifr & (RCAR_CAN_EIFR_EWIF | RCAR_CAN_EIFR_EPIF)) {
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 236
txerr = readb(&priv->regs->tecr);
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 237
rxerr = readb(&priv->regs->recr);
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 238
if (skb) {
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 239
cf->can_id |= CAN_ERR_CRTL;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 240
cf->data[6] = txerr;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17 241
cf->data[7] = rxerr;
fd1159318e55e90 drivers/net/can/rcar_can.c Sergei Shtylyov 2014-05-17
kbuild@lists.01.org
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: Linux Memory Management List
TO: Fengnan Chang
CC: Jaegeuk Kim
CC: Chao Yu , Chao Yu
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
master
head: 8a11187eb62b8b910d2c5484e1f5d160e8b11eb4
commit: a6f748c35eca6eedf2dda8b2a30abd640f1249dc [11491/13209] f2fs: fix
compressed file start atomic write may cause data corruption
:: branch date: 16 hours ago
:: commit date: 6 days ago
config: parisc-randconfig-m031-20220317
(https://download.01.org/0day-ci/archive/20220317/202203171137.0ldg0syz-...@intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
fs/f2fs/file.c:2057 f2fs_ioc_start_atomic_write() warn: inconsistent returns
'&inode->i_rwsem'.
Old smatch warnings:
fs/f2fs/f2fs.h:2371 dec_valid_block_count() warn: should 'count << 3' be a 64
bit type?
fs/f2fs/file.c:2942 f2fs_ioc_flush_device() warn: potential spectre issue
'sbi->devs' [w] (local cap)
fs/f2fs/file.c:4665 f2fs_file_write_iter() warn: inconsistent returns
'&inode->i_rwsem'.
vim +2057 fs/f2fs/file.c
d49f3e890290bd1 Chao Yu 2015-01-23 1988
88b88a667971599 Jaegeuk Kim 2014-10-06 1989 static int
f2fs_ioc_start_atomic_write(struct file *filp)
88b88a667971599 Jaegeuk Kim 2014-10-06 1990 {
88b88a667971599 Jaegeuk Kim 2014-10-06 1991struct inode *inode =
file_inode(filp);
984fc4e76d63345 Chao Yu 2022-02-04 1992struct user_namespace
*mnt_userns = file_mnt_user_ns(filp);
743b620cb0516f6 Jaegeuk Kim 2019-09-09 1993struct f2fs_inode_info
*fi = F2FS_I(inode);
743b620cb0516f6 Jaegeuk Kim 2019-09-09 1994struct f2fs_sb_info
*sbi = F2FS_I_SB(inode);
f4c9c743acedc2f Chao Yu 2015-07-17 1995int ret;
88b88a667971599 Jaegeuk Kim 2014-10-06 1996
984fc4e76d63345 Chao Yu 2022-02-04 1997if
(!inode_owner_or_capable(mnt_userns, inode))
88b88a667971599 Jaegeuk Kim 2014-10-06 1998return -EACCES;
88b88a667971599 Jaegeuk Kim 2014-10-06 1999
e811898c97f83ae Jaegeuk Kim 2017-03-17 2000if
(!S_ISREG(inode->i_mode))
e811898c97f83ae Jaegeuk Kim 2017-03-17 2001return -EINVAL;
e811898c97f83ae Jaegeuk Kim 2017-03-17 2002
038d06984f5c50a Chao Yu 2019-07-25 2003if (filp->f_flags &
O_DIRECT)
038d06984f5c50a Chao Yu 2019-07-25 2004return -EINVAL;
038d06984f5c50a Chao Yu 2019-07-25 2005
7fb17fe44b70c85 Chao Yu 2016-05-09 2006ret =
mnt_want_write_file(filp);
7fb17fe44b70c85 Chao Yu 2016-05-09 2007if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 2008return ret;
7fb17fe44b70c85 Chao Yu 2016-05-09 2009
0fac558b9658479 Chao Yu 2016-05-09 2010inode_lock(inode);
0fac558b9658479 Chao Yu 2016-05-09 2011
a6f748c35eca6ee Fengnan Chang 2022-03-10 2012if
(!f2fs_disable_compressed_file(inode))
a6f748c35eca6ee Fengnan Chang 2022-03-10 2013return -EINVAL;
4c8ff7095bef64f Chao Yu 2019-11-01 2014
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 2015if
(f2fs_is_atomic_file(inode)) {
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 2016if
(is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 2017ret =
-EINVAL;
7fb17fe44b70c85 Chao Yu 2016-05-09 2018goto out;
455e3a5887ee7eb Jaegeuk Kim 2018-07-27 2019}
88b88a667971599 Jaegeuk Kim 2014-10-06 2020
f4c9c743acedc2f Chao Yu 2015-07-17 2021ret =
f2fs_convert_inline_inode(inode);
f4c9c743acedc2f Chao Yu 2015-07-17 2022if (ret)
7fb17fe44b70c85 Chao Yu 2016-05-09 2023goto out;
88b88a667971599 Jaegeuk Kim 2014-10-06 2024
e4544b63a7ee49e Tim Murray 2022-01-07 2025
f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455060dfb0 Jaegeuk Kim 2018-07-25 2026
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 2027/*
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 2028 * Should wait end_io
to count F2FS_WB_CP_DATA correctly by
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 2029 * f2fs_is_atomic_file.
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 2030 */
31867b23d7d1ee3 Jaegeuk Kim 2018-12-28 2031if
(get_dirty_pages(inode))
dcbb4c10e6d9693 Joe Perches 2019-06-18 2032
f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu,
npages=%u",
c27753d675fccd3 Jaegeuk Kim 2016-04-12 2033
inode->i_ino, get_dirty_pages(inode));
c27753d675fccd3 Jaegeuk Kim 2016-04-12 2034ret =
filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
6f8
[kbuild] [gfs2:for-next 9/11] fs/gfs2/file.c:796:24: sparse: unsigned int *
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: cluster-de...@redhat.com
CC: linux-ker...@vger.kernel.org
TO: Andreas Gruenbacher
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
for-next
head: a20050c14edf19add5a9588cb196bb00aa410650
commit: 165d142ffacdef3e620819a1031df3d896aa29ab [9/11] gfs2: Fix
should_fault_in_pages() logic
:: branch date: 10 hours ago
:: commit date: 12 hours ago
config: sh-randconfig-s032-20220313
(https://download.01.org/0day-ci/archive/20220317/202203170954.vflmctje-...@intel.com/config)
compiler: sh4-linux-gcc (GCC) 11.2.0
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git/commit/?id=165d142ffacdef3e620819a1031df3d896aa29ab
git remote add gfs2
https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
git fetch --no-tags gfs2 for-next
git checkout 165d142ffacdef3e620819a1031df3d896aa29ab
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash
fs/gfs2/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
sparse warnings: (new ones prefixed by >>)
fs/gfs2/file.c:796:24: sparse: sparse: incompatible types in comparison
expression (different signedness):
>> fs/gfs2/file.c:796:24: sparse:unsigned int *
fs/gfs2/file.c:796:24: sparse:int *
>> fs/gfs2/file.c:796:24: sparse: sparse: cannot size expression
vim +796 fs/gfs2/file.c
33c3de32872ef3 fs/gfs2/ops_file.c Steven Whitehouse 2006-11-30 772
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 773 static
inline bool should_fault_in_pages(ssize_t ret, struct iov_iter *i,
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 774
size_t *prev_count,
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 775
size_t *window_size)
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 776 {
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 777 size_t
count = iov_iter_count(i);
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 778 size_t
size, offs;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 779
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 780 if
(likely(!count))
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 781
return false;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 782 if (ret
<= 0 && ret != -EFAULT)
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 783
return false;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 784 if
(!iter_is_iovec(i))
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 785
return false;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 786
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 787 size =
PAGE_SIZE;
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 788 offs =
offset_in_page(i->iov[0].iov_base + i->iov_offset);
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 789 if
(*prev_count != count || !*window_size) {
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 790
int nr_dirtied;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 791
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 792
size = ALIGN(offs + count, PAGE_SIZE);
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 793
size = min_t(size_t, size, SZ_1M);
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 794
nr_dirtied = max(current->nr_dirtied_pause -
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 795
current->nr_dirtied, 8);
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 @796
size = min(size, nr_dirtied << PAGE_SHIFT);
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 797 }
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 798
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 799
*prev_count = count;
165d142ffacdef fs/gfs2/file.c Andreas Gruenbacher 2022-03-07 800
*window_size = size - offs;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 801 return
true;
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 802 }
00bfe02f479688 fs/gfs2/file.c Andreas Gruenbacher 2021-10-18 803
--
[kbuild] sound/drivers/serial-u16550.c:609 snd_uart16550_output_byte() warn: ignoring unreachable code.
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Bart Van Assche
CC: Helge Deller
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: 6968e707d371ef80511448c6771daf445b4a5cf5 parisc: io: Improve the
outb(), outw() and outl() macros
date: 10 weeks ago
:: branch date: 32 hours ago
:: commit date: 10 weeks ago
config: parisc-randconfig-m031-20220317
(https://download.01.org/0day-ci/archive/20220317/202203170934.4dupjlnq-...@intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
sound/drivers/serial-u16550.c:609 snd_uart16550_output_byte() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:806 snd_uart16550_create() warn: ignoring
unreachable code.
sound/drivers/mpu401/mpu401_uart.c:47 mpu401_write_port() warn: ignoring
unreachable code.
drivers/net/hamradio/baycom_ser_hdx.c:394 ser12_interrupt() warn: ignoring
unreachable code.
Old smatch warnings:
sound/drivers/serial-u16550.c:179 snd_uart16550_buffer_output() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:333 snd_uart16550_detect() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:368 snd_uart16550_do_open() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:457 snd_uart16550_do_close() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:613 snd_uart16550_output_byte() warn: ignoring
unreachable code.
sound/drivers/serial-u16550.c:811 snd_uart16550_create() warn: ignoring
unreachable code.
drivers/net/hamradio/baycom_ser_hdx.c:193 ser12_tx() warn: ignoring unreachable
code.
drivers/net/hamradio/baycom_ser_hdx.c:158 ser12_set_divisor() warn: ignoring
unreachable code.
drivers/net/hamradio/baycom_ser_hdx.c:339 ser12_rx() warn: ignoring unreachable
code.
drivers/net/hamradio/baycom_ser_hdx.c:431 ser12_check_uart() warn: ignoring
unreachable code.
drivers/net/hamradio/baycom_ser_hdx.c:474 ser12_open() warn: ignoring
unreachable code.
drivers/net/hamradio/baycom_ser_hdx.c:508 ser12_close() warn: ignoring
unreachable code.
vim +609 sound/drivers/serial-u16550.c
^1da177e4c3f415 Linus Torvalds 2005-04-16 594
0b830bac35dd6e3 Takashi Iwai 2006-11-24 595 static int
snd_uart16550_output_byte(struct snd_uart16550 *uart,
0b830bac35dd6e3 Takashi Iwai 2006-11-24 596
struct snd_rawmidi_substream *substream,
0b830bac35dd6e3 Takashi Iwai 2006-11-24 597
unsigned char midi_byte)
^1da177e4c3f415 Linus Torvalds 2005-04-16 598 {
^1da177e4c3f415 Linus Torvalds 2005-04-16 599 if (uart->buff_in_count
== 0/* Buffer empty? */
^1da177e4c3f415 Linus Torvalds 2005-04-16 600 && ((uart->adaptor
!= SNDRV_SERIAL_MS124W_SA &&
^1da177e4c3f415 Linus Torvalds 2005-04-16 601 uart->adaptor !=
SNDRV_SERIAL_GENERIC) ||
^1da177e4c3f415 Linus Torvalds 2005-04-16 602
(uart->fifo_count == 0 /* FIFO empty? */
^1da177e4c3f415 Linus Torvalds 2005-04-16 603 &&
(inb(uart->base + UART_MSR) & UART_MSR_CTS { /* CTS? */
^1da177e4c3f415 Linus Torvalds 2005-04-16 604
^1da177e4c3f415 Linus Torvalds 2005-04-16 605 /* Tx Buffer
Empty - try to write immediately */
^1da177e4c3f415 Linus Torvalds 2005-04-16 606 if
((inb(uart->base + UART_LSR) & UART_LSR_THRE) != 0) {
^1da177e4c3f415 Linus Torvalds 2005-04-16 607 /*
Transmitter holding register (and Tx FIFO) empty */
^1da177e4c3f415 Linus Torvalds 2005-04-16 608
uart->fifo_count = 1;
^1da177e4c3f415 Linus Torvalds 2005-04-16 @609
outb(midi_byte, uart->base + UART_TX);
^1da177e4c3f415 Linus Torvalds 2005-04-16 610 } else {
^1da177e4c3f415 Linus Torvalds 2005-04-16 611 if
(uart->fifo_count < uart->fifo_limit) {
^1da177e4c3f415 Linus Torvalds 2005-04-16 612
uart->fifo_count++;
^1da177e4c3f415 Linus Torvalds 2005-04-16 613
outb(midi_byte, uart->base + UART_TX);
^1da177e4c3f415 Linus Torvalds 2005-04-16 614 } else {
0b830bac35dd6e3 Takashi Iwai 2006-11-24 615
/* Cannot write (buffer empty) -
0b830bac35dd6e3 Takashi Iwai 2006-11-24 616
* put char in buffer */
^1da177e4c3f415 Linus Torvalds 2005-04-16 617
snd_uart16550_write_buffer(uart, midi_byte);
^1da177e4c3f415 Linus Torvalds 2005-04-16 618 }
^1da177e4c3f415 Linus Torvalds 2005-04-16 619 }
^1da177e4c3f415 Linus Torvalds 2005-04-16 620
[kbuild] [linux-next:master 5697/13209] drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:4330:7: warning: Dereference of null pointer [clang-analyzer-core.NullDereference]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: Linux Memory Management List
TO: Hersen Wu
CC: Alex Deucher
CC: Jerry Zuo
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
master
head: 8a11187eb62b8b910d2c5484e1f5d160e8b11eb4
commit: fa39f936dbb96626d3345fd8d66af6be6f47ff9e [5697/13209] drm/amd/display:
add dsc mst stream pbn log for debug
:: branch date: 13 hours ago
:: commit date: 4 weeks ago
config: riscv-randconfig-c006-20220310
(https://download.01.org/0day-ci/archive/20220317/202203170721.szipp2pb-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
276ca87382b8f16a65bddac700202924228982f6)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=fa39f936dbb96626d3345fd8d66af6be6f47ff9e
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout fa39f936dbb96626d3345fd8d66af6be6f47ff9e
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
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 >>)
^~
net/nfc/nci/hci.c:245:2: note: Taking false branch
if (r == NCI_STATUS_OK) {
^
net/nfc/nci/hci.c:255:2: note: Returning without writing to '*'
return r;
^
net/nfc/nci/hci.c:531:12: note: Returning from 'nci_hci_send_cmd'
*result = nci_hci_send_cmd(ndev, NCI_HCI_ADMIN_GATE,
^~
net/nfc/nci/hci.c:534:6: note: Assuming the condition is false
if (*result < 0)
^~~
net/nfc/nci/hci.c:534:2: note: Taking false branch
if (*result < 0)
^
net/nfc/nci/hci.c:537:44: note: Access to field 'data' results in a
dereference of an undefined pointer value (loaded from variable 'skb')
resp = (struct nci_hci_create_pipe_resp *)skb->data;
^~~
net/nfc/nci/hci.c:742:6: warning: Access to field 'len' results in a
dereference of an undefined pointer value (loaded from variable 'skb')
[clang-analyzer-core.NullDereference]
if (skb->len &&
^~~
net/nfc/nci/hci.c:712:2: note: 'skb' declared without an initial value
struct sk_buff *skb;
^~~
net/nfc/nci/hci.c:719:6: note: Assuming 'conn_info' is non-null
if (!conn_info)
^~
net/nfc/nci/hci.c:719:2: note: Taking false branch
if (!conn_info)
^
net/nfc/nci/hci.c:727:6: note: Assuming field 'gate' is equal to
NCI_HCI_ADMIN_GATE
if (ndev->hci_dev->init_data.gates[0].gate != NCI_HCI_ADMIN_GATE)
^~~~
net/nfc/nci/hci.c:727:2: note: Taking false branch
if (ndev->hci_dev->init_data.gates[0].gate != NCI_HCI_ADMIN_GATE)
^
net/nfc/nci/hci.c:734:6: note: 'r' is >= 0
if (r < 0)
^
net/nfc/nci/hci.c:734:2: note: Taking false branch
if (r < 0)
^
net/nfc/nci/hci.c:737:6: note: Calling 'nci_hci_get_param'
r = nci_hci_get_param(ndev, NCI_HCI_ADMIN_GATE,
^~~
net/nfc/nci/hci.c:608:2: note: Taking false branch
pr_debug("idx=%d to gate %d\n", idx, gate);
^
include/linux/printk.h:576:2: note: expanded from macro 'pr_debug'
no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:131:2: note: expanded from macro 'no_printk'
if (0) \
^
net/nfc/nci/hci.c:610:6: note: Assuming 'pipe' is not equal to
NCI_HCI_INVALID_PIPE
if (pipe == NCI_HCI_INVALID_PIPE)
^~~~
net/nfc/nci/hci.c:610:2: note: Taking false branch
if (pipe == NCI_HCI_INVALID_PIPE)
^
net/nfc/nci/hci.c:614:6: note: Assuming 'conn_info' is non-null
if (!conn_info)
^~
net/nfc/nci/hci.c:614:2: note: Taking false branch
if (!conn_info)
^
net/nfc/nci/hci.c:627:6: note: Assuming 'r' is not equal to NCI_STATUS_OK
if (r == NCI_STATUS_OK) {
^~
net/nfc/nci/hci.c:627:2: note: Taking false branch
[kbuild] [linux-stable-rc:linux-5.10.y 7449/9999] arch/x86/kernel/head_64.o: warning: objtool: .text+0x5: unreachable instruction
CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Peter Zijlstra CC: "Greg Kroah-Hartman" CC: Juergen Gross CC: Miroslav Benes CC: Sasha Levin tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y head: 1ef0e2b3149031c288a85198919cc1778754e515 commit: b36ab509e1817e60f73ce297494f0de1b7ed2c08 [7449/] x86/xen: Mark cpu_bringup_and_idle() as dead_end_function :: branch date: 3 days ago :: commit date: 4 months ago config: x86_64-randconfig-c007-20220307 (https://download.01.org/0day-ci/archive/20220317/202203170750.vieiiafh-...@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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=b36ab509e1817e60f73ce297494f0de1b7ed2c08 git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.10.y git checkout b36ab509e1817e60f73ce297494f0de1b7ed2c08 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> arch/x86/kernel/head_64.o: warning: objtool: .text+0x5: unreachable >> instruction --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org ___ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] Re: [PATCH RFC v5 08/21] dept: Apply Dept to seqlock
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
In-Reply-To: <1647397593-16747-9-git-send-email-byungchul.p...@lge.com>
References: <1647397593-16747-9-git-send-email-byungchul.p...@lge.com>
TO: Byungchul Park
Hi Byungchul,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.17-rc8]
[cannot apply to tip/locking/core tip/sched/core hnaz-mm/master next-20220316]
[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/0day-ci/linux/commits/Byungchul-Park/DEPT-Dependency-Tracker/20220316-102853
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
2c271fe77d52a0555161926c232cd5bc07178b39
:: branch date: 21 hours ago
:: commit date: 21 hours ago
config: x86_64-randconfig-m001-20220314
(https://download.01.org/0day-ci/archive/20220317/202203170758.2sbllrrf-...@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
arch/x86/kvm/x86.c:2129 update_pvclock_gtod() warn: statement has no effect 31
Old smatch warnings:
arch/x86/kvm/x86.c:2845 kvm_end_pvclock_update() warn: statement has no effect
31
arch/x86/kvm/x86.c:5066 kvm_arch_tsc_set_attr() warn: check for integer
overflow 'offset'
arch/x86/kvm/x86.c:5107 kvm_vcpu_ioctl_device_attr() error: uninitialized
symbol 'r'.
vim +2129 arch/x86/kvm/x86.c
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2101
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2102 static void
update_pvclock_gtod(struct timekeeper *tk)
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2103 {
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2104 struct
pvclock_gtod_data *vdata = &pvclock_gtod_data;
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2105
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2106
write_seqcount_begin(&vdata->seq);
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2107
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2108 /* copy pvclock gtod
data */
b95a8a27c300d1 Thomas Gleixner 2020-02-07 2109
vdata->clock.vclock_mode= tk->tkr_mono.clock->vdso_clock_mode;
876e78818def29 Peter Zijlstra 2015-03-19 2110 vdata->clock.cycle_last
= tk->tkr_mono.cycle_last;
876e78818def29 Peter Zijlstra 2015-03-19 2111 vdata->clock.mask
= tk->tkr_mono.mask;
876e78818def29 Peter Zijlstra 2015-03-19 2112 vdata->clock.mult
= tk->tkr_mono.mult;
876e78818def29 Peter Zijlstra 2015-03-19 2113 vdata->clock.shift
= tk->tkr_mono.shift;
917f9475c0a8ab Paolo Bonzini 2020-01-22 2114
vdata->clock.base_cycles= tk->tkr_mono.xtime_nsec;
917f9475c0a8ab Paolo Bonzini 2020-01-22 2115 vdata->clock.offset
= tk->tkr_mono.base;
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2116
b95a8a27c300d1 Thomas Gleixner 2020-02-07 2117
vdata->raw_clock.vclock_mode= tk->tkr_raw.clock->vdso_clock_mode;
53fafdbb8b21fa Marcelo Tosatti 2019-10-28 2118
vdata->raw_clock.cycle_last = tk->tkr_raw.cycle_last;
53fafdbb8b21fa Marcelo Tosatti 2019-10-28 2119 vdata->raw_clock.mask
= tk->tkr_raw.mask;
53fafdbb8b21fa Marcelo Tosatti 2019-10-28 2120 vdata->raw_clock.mult
= tk->tkr_raw.mult;
53fafdbb8b21fa Marcelo Tosatti 2019-10-28 2121 vdata->raw_clock.shift
= tk->tkr_raw.shift;
917f9475c0a8ab Paolo Bonzini 2020-01-22 2122
vdata->raw_clock.base_cycles= tk->tkr_raw.xtime_nsec;
917f9475c0a8ab Paolo Bonzini 2020-01-22 2123 vdata->raw_clock.offset
= tk->tkr_raw.base;
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2124
55dd00a73a5182 Marcelo Tosatti 2017-01-24 2125 vdata->wall_time_sec
= tk->xtime_sec;
55dd00a73a5182 Marcelo Tosatti 2017-01-24 2126
917f9475c0a8ab Paolo Bonzini 2020-01-22 2127 vdata->offs_boot
= tk->offs_boot;
53fafdbb8b21fa Marcelo Tosatti 2019-10-28 2128
16e8d74d2da992 Marcelo Tosatti 2012-11-27 @2129
write_seqcount_end(&vdata->seq);
16e8d74d2da992 Marcelo Tosatti 2012-11-27 2130 }
8171cd68806bd2 Paolo Bonzini 2020-01-22 2131
---
0-DAY CI Kernel Test Service
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
___
kbuild mailing list -- kbuild@lists.01.org
To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] drivers/of/property.c:1445:22: warning: Value stored to 'con_np' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Saravana Kannan
CC: Rob Herring
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: 4a48b66b3f52aa1a8aaa8a8863891eed35769731 of: property: Disable
fw_devlink DT support for X86
date: 6 months ago
:: branch date: 30 hours ago
:: commit date: 6 months ago
config: x86_64-randconfig-c007-20220307
(https://download.01.org/0day-ci/archive/20220317/202203170654.gtyhhgdu-...@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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a48b66b3f52aa1a8aaa8a8863891eed35769731
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4a48b66b3f52aa1a8aaa8a8863891eed35769731
# 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 >>)
drivers/net/ethernet/intel/e1000/e1000_hw.c:4234:7: note: Calling
'e1000_read_eeprom'
if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) {
^~
drivers/net/ethernet/intel/e1000/e1000_hw.c:3854:8: note: Calling
'e1000_do_read_eeprom'
ret = e1000_do_read_eeprom(hw, offset, words, data);
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3865:6: note: Assuming field
'mac_type' is not equal to e1000_ce4100
if (hw->mac_type == e1000_ce4100) {
^~~~
drivers/net/ethernet/intel/e1000/e1000_hw.c:3865:2: note: Taking false branch
if (hw->mac_type == e1000_ce4100) {
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3874:7: note: Assuming 'offset'
is < field 'word_size'
if ((offset >= eeprom->word_size) ||
^~~
drivers/net/ethernet/intel/e1000/e1000_hw.c:3874:6: note: Left side of '||'
is false
if ((offset >= eeprom->word_size) ||
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3874:6: note: Left side of '||'
is false
drivers/net/ethernet/intel/e1000/e1000_hw.c:3876:7: note: 'words' is not
equal to 0
(words == 0)) {
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3874:2: note: Taking false branch
if ((offset >= eeprom->word_size) ||
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3887:6: note: Assuming the
condition is false
if (e1000_acquire_eeprom(hw) != E1000_SUCCESS)
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3887:2: note: Taking false branch
if (e1000_acquire_eeprom(hw) != E1000_SUCCESS)
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3893:6: note: Assuming field
'type' is not equal to e1000_eeprom_spi
if (eeprom->type == e1000_eeprom_spi) {
^~~~
drivers/net/ethernet/intel/e1000/e1000_hw.c:3893:2: note: Taking false branch
if (eeprom->type == e1000_eeprom_spi) {
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3926:13: note: Assuming field
'type' is not equal to e1000_eeprom_microwire
} else if (eeprom->type == e1000_eeprom_microwire) {
^~
drivers/net/ethernet/intel/e1000/e1000_hw.c:3926:9: note: Taking false branch
} else if (eeprom->type == e1000_eeprom_microwire) {
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3947:2: note: Returning without
writing to '*data'
return E1000_SUCCESS;
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3854:8: note: Returning from
'e1000_do_read_eeprom'
ret = e1000_do_read_eeprom(hw, offset, words, data);
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:3856:2: note: Returning without
writing to '*data'
return ret;
^
drivers/net/ethernet/intel/e1000/e1000_hw.c:4234:7: note: Returning from
'e1000_read_eeprom'
if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) {
^~
drivers/net/ethernet/intel/e1000/e1000_hw.c:4234:3: note: Taking fals
[kbuild] fs/ntfs3/ntfs_fs.h:1004:2: warning: Non-boolean value returned from function returning bool [returnNonBoolInBooleanFunction]
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Konstantin Komarov
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in
fs/Kconfig and fs/Makefile
date: 7 months ago
:: branch date: 29 hours ago
:: commit date: 7 months ago
compiler: arc-elf-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
cppcheck possible warnings: (new ones prefixed by >>, may not real problems)
In file included from fs/ntfs3/fsntfs.c:
>> fs/ntfs3/ntfs_fs.h:1004:2: warning: Non-boolean value returned from function
>> returning bool [returnNonBoolInBooleanFunction]
return ni->ni_flags & NI_FLAG_DEDUPLICATED;
^
>> fs/ntfs3/fsntfs.c:1289:2: warning: Possible null pointer dereference: nb
>> [nullPointer]
nb->nbufs = 0;
^
fs/ntfs3/fsntfs.c:2049:31: note: Calling function 'ntfs_read_run_nb', 6th
argument 'NULL' value is 0
sizeof(d_security), NULL);
^
fs/ntfs3/fsntfs.c:1289:2: note: Null pointer dereference
nb->nbufs = 0;
^
vim +1004 fs/ntfs3/ntfs_fs.h
4534a70b7056fd4 Konstantin Komarov 2021-08-13 1001
4534a70b7056fd4 Konstantin Komarov 2021-08-13 1002 static inline bool
is_dedup(const struct ntfs_inode *ni)
4534a70b7056fd4 Konstantin Komarov 2021-08-13 1003 {
4534a70b7056fd4 Konstantin Komarov 2021-08-13 @1004 return ni->ni_flags &
NI_FLAG_DEDUPLICATED;
4534a70b7056fd4 Konstantin Komarov 2021-08-13 1005 }
4534a70b7056fd4 Konstantin Komarov 2021-08-13 1006
:: The code at line 1004 was first introduced by commit
:: 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e fs/ntfs3: Add headers and misc
files
:: TO: Konstantin Komarov
:: CC: Konstantin Komarov
---
0-DAY CI Kernel Test Service
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
___
kbuild mailing list -- kbuild@lists.01.org
To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] Re: [PATCH] kunit: split resource API from test.h into new resource.h
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
In-Reply-To: <20220316024432.1454366-1-dlaty...@google.com>
References: <20220316024432.1454366-1-dlaty...@google.com>
TO: Daniel Latypov
TO: brendanhigg...@google.com
TO: david...@google.com
CC: linux-ker...@vger.kernel.org
CC: kunit-...@googlegroups.com
CC: linux-kselft...@vger.kernel.org
CC: sk...@linuxfoundation.org
CC: Daniel Latypov
Hi Daniel,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on 09688c0166e76ce2fb85e86b9d99be8b0084cdf9]
url:
https://github.com/0day-ci/linux/commits/Daniel-Latypov/kunit-split-resource-API-from-test-h-into-new-resource-h/20220316-104559
base: 09688c0166e76ce2fb85e86b9d99be8b0084cdf9
:: branch date: 19 hours ago
:: commit date: 19 hours ago
config: arm-randconfig-c002-20220313
(https://download.01.org/0day-ci/archive/20220317/202203170501.ccagiyt2-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb)
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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
#
https://github.com/0day-ci/linux/commit/132662b59a0f2d3d7b21c94ff6829725a6b606f5
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Daniel-Latypov/kunit-split-resource-API-from-test-h-into-new-resource-h/20220316-104559
git checkout 132662b59a0f2d3d7b21c94ff6829725a6b606f5
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
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 >>)
kernel/rcu/rcuscale.c:453:7: note: Left side of '&&' is true
if (!started &&
^
kernel/rcu/rcuscale.c:454:7: note: Assuming the condition is false
atomic_read(&n_rcu_scale_writer_started) >= nrealwriters)
^~~~
kernel/rcu/rcuscale.c:453:3: note: Taking false branch
if (!started &&
^
kernel/rcu/rcuscale.c:456:8: note: 'done' is false
if (!done && i >= MIN_MEAS) {
^~~~
kernel/rcu/rcuscale.c:456:7: note: Left side of '&&' is true
if (!done && i >= MIN_MEAS) {
^
kernel/rcu/rcuscale.c:456:16: note: 'i' is < MIN_MEAS
if (!done && i >= MIN_MEAS) {
^
kernel/rcu/rcuscale.c:456:3: note: Taking false branch
if (!done && i >= MIN_MEAS) {
^
kernel/rcu/rcuscale.c:480:7: note: 'done' is false
if (done && !alldone &&
^~~~
kernel/rcu/rcuscale.c:480:12: note: Left side of '&&' is false
if (done && !alldone &&
^
kernel/rcu/rcuscale.c:483:7: note: 'started' is false
if (started && !alldone && i < MAX_MEAS - 1)
^~~
kernel/rcu/rcuscale.c:483:15: note: Left side of '&&' is false
if (started && !alldone && i < MAX_MEAS - 1)
^
kernel/rcu/rcuscale.c:486:11: note: Assuming the condition is true
} while (!torture_must_stop());
^~~~
kernel/rcu/rcuscale.c:426:2: note: Loop condition is true. Execution
continues on line 427
do {
^
kernel/rcu/rcuscale.c:427:7: note: Assuming 'writer_holdoff' is 0
if (writer_holdoff)
^~
kernel/rcu/rcuscale.c:427:3: note: Taking false branch
if (writer_holdoff)
^
kernel/rcu/rcuscale.c:431:7: note: Assuming 'gp_async' is true
if (gp_async) {
^~~~
kernel/rcu/rcuscale.c:431:3: note: Taking true branch
if (gp_async) {
^
kernel/rcu/rcuscale.c:433:9: note: 'rhp' is non-null
if (!rhp)
^~~
kernel/rcu/rcuscale.c:433:4: note: Taking false branch
if (!rhp)
^
kernel/rcu/rcuscale.c:435:8: note: 'rhp' is non-null
[kbuild] drivers/of/irq.c:567:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Rasmus Villemoes
CC: Miguel Ojeda
CC: Nick Desaulniers
CC: Andrew Morton
CC: Linux Memory Management List
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: e1edc277e6f6dfb372216522dfc57f9381c39e35 linux/container_of.h: switch
to static_assert
date: 4 months ago
:: branch date: 27 hours ago
:: commit date: 4 months ago
config: arm-randconfig-c002-20220308
(https://download.01.org/0day-ci/archive/20220317/202203170319.8yvxwj4d-...@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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e1edc277e6f6dfb372216522dfc57f9381c39e35
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e1edc277e6f6dfb372216522dfc57f9381c39e35
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
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 >>)
^
include/linux/printk.h:489:2: note: expanded from macro 'pr_err'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:446:26: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
^
include/linux/printk.h:417:3: note: expanded from macro 'printk_index_wrap'
__printk_index_emit(_fmt, NULL, NULL); \
^
include/linux/printk.h:370:7: note: expanded from macro '__printk_index_emit'
if (__builtin_constant_p(_fmt) &&
__builtin_constant_p(_level)) { \
^
drivers/of/irq.c:559:4: note: Taking true branch
pr_err("of_irq_init: children remain, but no
parents\n");
^
include/linux/printk.h:489:2: note: expanded from macro 'pr_err'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:446:26: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
^
include/linux/printk.h:417:3: note: expanded from macro 'printk_index_wrap'
__printk_index_emit(_fmt, NULL, NULL); \
^
include/linux/printk.h:370:3: note: expanded from macro '__printk_index_emit'
if (__builtin_constant_p(_fmt) &&
__builtin_constant_p(_level)) { \
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/of/irq.c:559:4: note: '?' condition is true
pr_err("of_irq_init: children remain, but no
parents\n");
^
include/linux/printk.h:489:2: note: expanded from macro 'pr_err'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:446:26: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
^
include/linux/printk.h:417:3: note: expanded from macro 'printk_index_wrap'
__printk_index_emit(_fmt, NULL, NULL); \
^
include/linux/printk.h:379:12: note: expanded from macro
'__printk_index_emit'
.fmt = __builtin_constant_p(_fmt) ? (_fmt) :
NULL, \
^
drivers/of/irq.c:559:4: note: '?' condition is true
pr_err("of_irq_init: children remain, but no
parents\n");
^
include/linux/printk.h:489:2: note: expanded from macro 'pr_err'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:446:26: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
^
include/linux/printk.h:417:3: note: expanded from macro 'printk_index_wrap'
__printk_index_emit(_fmt, NULL, NULL); \
^
include/linux/printk.h:383:14: note: expanded from ma
[kbuild] [kdave-btrfs-devel:for-next 147/195] fs/btrfs/inode.c:11309:21: warning: Value stored to 'root' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Filipe Manana
CC: David Sterba
tree: https://github.com/kdave/btrfs-devel.git for-next
head: 274c7b59fbd77edddc488f5f408f432ca96fd390
commit: 9cf32bee81e4ad916e47326464234b265da3028b [147/195] btrfs: add and use
helper to assert an inode range is clean
:: branch date: 26 hours ago
:: commit date: 28 hours ago
config: riscv-randconfig-c006-20220313
(https://download.01.org/0day-ci/archive/20220317/202203170346.hztszyrv-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://github.com/kdave/btrfs-devel/commit/9cf32bee81e4ad916e47326464234b265da3028b
git remote add kdave-btrfs-devel
https://github.com/kdave/btrfs-devel.git
git fetch --no-tags kdave-btrfs-devel for-next
git checkout 9cf32bee81e4ad916e47326464234b265da3028b
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
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 >>)
^
include/asm-generic/bitops/non-atomic.h:120:18: note: expanded from macro
'test_bit'
#define test_bit arch_test_bit
^
fs/btrfs/inode.c:10576:2: note: Taking false branch
if (em->block_start == EXTENT_MAP_HOLE ||
^
fs/btrfs/inode.c:10582:13: note: Assuming the condition is true
} else if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) {
^
include/asm-generic/bitops/non-atomic.h:120:18: note: expanded from macro
'test_bit'
#define test_bit arch_test_bit
^
fs/btrfs/inode.c:10582:9: note: Taking true branch
} else if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) {
^
fs/btrfs/inode.c:10588:7: note: Assuming 'count' is >= field 'block_len'
if (em->block_len > count) {
^
fs/btrfs/inode.c:10588:3: note: Taking false branch
if (em->block_len > count) {
^
fs/btrfs/inode.c:10597:7: note: 'ret' is >= 0
if (ret < 0)
^~~
fs/btrfs/inode.c:10597:3: note: Taking false branch
if (ret < 0)
^
fs/btrfs/inode.c:10617:2: note: Taking false branch
if (disk_bytenr == EXTENT_MAP_HOLE) {
^
fs/btrfs/inode.c:10625:9: note: Calling 'btrfs_encoded_read_regular'
ret = btrfs_encoded_read_regular(iocb, iter, start, lockend,
^~
fs/btrfs/inode.c:10454:6: note: Assuming 'pages' is non-null
if (!pages)
^~
fs/btrfs/inode.c:10454:2: note: Taking false branch
if (!pages)
^
fs/btrfs/inode.c:10456:14: note: Assuming 'i' is >= 'nr_pages'
for (i = 0; i < nr_pages; i++) {
^~~~
fs/btrfs/inode.c:10456:2: note: Loop condition is false. Execution continues
on line 10464
for (i = 0; i < nr_pages; i++) {
^
fs/btrfs/inode.c:10464:8: note: Calling
'btrfs_encoded_read_regular_fill_pages'
ret = btrfs_encoded_read_regular_fill_pages(inode, start,
disk_bytenr,
^~~~
fs/btrfs/inode.c:10372:2: note: Loop condition is false. Exiting loop
init_waitqueue_head(&priv.wait);
^
include/linux/wait.h:67:2: note: expanded from macro 'init_waitqueue_head'
do {
\
^
fs/btrfs/inode.c:10377:9: note: Assuming 'cur' is < 'disk_io_size'
while (cur < disk_io_size) {
^~
fs/btrfs/inode.c:10377:2: note: Loop condition is true. Entering loop body
while (cur < disk_io_size) {
^
fs/btrfs/inode.c:10385:7: note: Calling 'IS_ERR'
if (IS_ERR(em)) {
^~
include/linux/err.h:36:9: note: Assuming the condition is true
return IS_ERR_VALUE((unsigned long)ptr);
^
include/linux/err.h:22:34: note: expanded from macro 'IS_ERR_VALUE'
#define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned
long)-MAX_ERRNO)
~^~~~
[kbuild] [linusw-pinctrl:devel 44/71] drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c:1562:26: warning: Value stored to 'npcm' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-g...@vger.kernel.org
TO: "Jonathan Neuschäfer"
CC: Linus Walleij
tree:
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
head: 89388f8730699c259f8090ec435fb43569efe4ac
commit: a1d1e0e3d80a870cc37a6c064994b89e963d2b58 [44/71] pinctrl: nuvoton: Add
driver for WPCM450
:: branch date: 2 days ago
:: commit date: 2 days ago
config: riscv-randconfig-c006-20220313
(https://download.01.org/0day-ci/archive/20220317/202203170101.edmxwknf-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
a6b2f50fb47da3baeee10b1906da6e30ac5d26ec)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git/commit/?id=a1d1e0e3d80a870cc37a6c064994b89e963d2b58
git remote add linusw-pinctrl
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
git fetch --no-tags linusw-pinctrl devel
git checkout a1d1e0e3d80a870cc37a6c064994b89e963d2b58
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
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 >>)
^
lib/mpi/mpi-pow.c:71:6: note: Assuming 'mp' is non-null
if (!mp)
^~~
lib/mpi/mpi-pow.c:71:2: note: Taking false branch
if (!mp)
^
lib/mpi/mpi-pow.c:74:6: note: 'mod_shift_cnt' is 64
if (mod_shift_cnt)
^
lib/mpi/mpi-pow.c:74:2: note: Taking true branch
if (mod_shift_cnt)
^
lib/mpi/mpi-pow.c:81:6: note: Assuming 'bsize' is <= 'msize'
if (bsize > msize) {/* The base is larger than the module.
Reduce it. */
^
lib/mpi/mpi-pow.c:81:2: note: Taking false branch
if (bsize > msize) {/* The base is larger than the module.
Reduce it. */
^
lib/mpi/mpi-pow.c:98:6: note: Assuming 'bsize' is not equal to 0
if (!bsize) {
^~
lib/mpi/mpi-pow.c:98:2: note: Taking false branch
if (!bsize) {
^
lib/mpi/mpi-pow.c:104:6: note: Assuming 'size' is <= field 'alloced'
if (res->alloced < size) {
^~~
lib/mpi/mpi-pow.c:104:2: note: Taking false branch
if (res->alloced < size) {
^
lib/mpi/mpi-pow.c:119:7: note: Assuming 'rp' is not equal to 'bp'
if (rp == bp) {
^~~~
lib/mpi/mpi-pow.c:119:3: note: Taking false branch
if (rp == bp) {
^
lib/mpi/mpi-pow.c:127:7: note: Assuming 'rp' is not equal to 'ep'
if (rp == ep) {
^~~~
lib/mpi/mpi-pow.c:127:3: note: Taking false branch
if (rp == ep) {
^
lib/mpi/mpi-pow.c:134:7: note: Assuming 'rp' is not equal to 'mp'
if (rp == mp) {
^~~~
lib/mpi/mpi-pow.c:134:3: note: Taking false branch
if (rp == mp) {
^
lib/mpi/mpi-pow.c:144:2: note: Assuming '_i' is >= 'bsize'
MPN_COPY(rp, bp, bsize);
^
lib/mpi/mpi-internal.h:65:16: note: expanded from macro 'MPN_COPY'
for (_i = 0; _i < (n); _i++)\
^~~~
lib/mpi/mpi-pow.c:144:2: note: Loop condition is false. Execution continues
on line 144
MPN_COPY(rp, bp, bsize);
^
lib/mpi/mpi-internal.h:65:3: note: expanded from macro 'MPN_COPY'
for (_i = 0; _i < (n); _i++)\
^
lib/mpi/mpi-pow.c:144:2: note: Loop condition is false. Exiting loop
MPN_COPY(rp, bp, bsize);
^
lib/mpi/mpi-internal.h:63:2: note: expanded from macro 'MPN_COPY'
do {\
^
lib/mpi/mpi-pow.c:156:7: note: Assuming 'xp' is non-null
if (!xp)
^~~
lib/mpi/mpi-pow.c:156:3: note: Taking false branch
if (!xp)
^
lib/mpi/mpi-pow.c:159:22: note: Assuming the condition is false
negative_result = (ep[0] & 1) && base->sign;
^
lib/mpi/mpi-pow.c:159:33: note: Left side of '&&' is false
negative_result = (ep[0] & 1) && base->sign;
^
lib/mpi/mpi-pow.c:163:7: note: C
[kbuild] drivers/usb/storage/realtek_cr.c:264:20-21: WARNING opportunity for min()
CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Denis Efremov CC: Julia Lawall tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 56e337f2cf1326323844927a04e9dbce9a244835 commit: 5f66f73b9ff4dcabd4e2405ba9c32e80e02f9408 coccinelle: misc: add minmax script date: 11 months ago :: branch date: 24 hours ago :: commit date: 11 months ago config: i386-randconfig-c021-20220314 (https://download.01.org/0day-ci/archive/20220317/202203170021.merex2xn-...@intel.com/config) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Julia Lawall cocci warnings: (new ones prefixed by >>) >> drivers/usb/storage/realtek_cr.c:264:20-21: WARNING opportunity for min() Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org ___ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] [PATCH] coccinelle: misc: fix minmax.cocci warnings
CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Denis Efremov CC: Julia Lawall CC: Alan Stern CC: "Greg Kroah-Hartman" CC: linux-...@vger.kernel.org CC: usb-stor...@lists.one-eyed-alien.net CC: linux-ker...@vger.kernel.org From: kernel test robot drivers/usb/storage/realtek_cr.c:264:20-21: WARNING opportunity for min() Check for opencoded min(), max() implementations. Generated patches sometimes require adding a cast to fix compile warning. Warnings/patches scope intentionally limited to a function body. Generated by: scripts/coccinelle/misc/minmax.cocci CC: Denis Efremov Reported-by: kernel test robot Signed-off-by: kernel test robot --- tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 56e337f2cf1326323844927a04e9dbce9a244835 commit: 5f66f73b9ff4dcabd4e2405ba9c32e80e02f9408 coccinelle: misc: add minmax script :: branch date: 24 hours ago :: commit date: 11 months ago Please take the patch only if it's a positive warning. Thanks! drivers/usb/storage/realtek_cr.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/storage/realtek_cr.c +++ b/drivers/usb/storage/realtek_cr.c @@ -261,7 +261,7 @@ static int rts51x_bulk_transport(struct * was really transferred and what the device tells us */ if (residue) - residue = residue < buf_len ? residue : buf_len; + residue = min(residue, buf_len); if (act_len) *act_len = buf_len - residue; ___ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] [intel-tdx:guest-rebased 120/129] drivers/acpi/svkl.c:164 acpi_svkl_init() warn: '&acpi_svkl_dev' not released on lines: 157.
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Kuppuswamy Sathyanarayanan
CC: "Kirill A. Shutemov"
tree: https://github.com/intel/tdx.git guest-rebased
head: 6d6cab7288e23cfe0084bd1c214e3649146eb159
commit: 370c68664d53ff13dbd36847e140df02364387a5 [120/129] ACPI: Add SVKL table
support
:: branch date: 2 days ago
:: commit date: 6 weeks ago
config: x86_64-randconfig-m001-20220314
(https://download.01.org/0day-ci/archive/20220316/202203162327.0mhkaqed-...@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
smatch warnings:
drivers/acpi/svkl.c:164 acpi_svkl_init() warn: '&acpi_svkl_dev' not released on
lines: 157.
vim +164 drivers/acpi/svkl.c
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 139
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 140 static int __init
acpi_svkl_init(void)
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 141 {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 142 acpi_status
status = AE_OK;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 143 int ret;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 144
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 145 ret =
misc_register(&acpi_svkl_dev);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 146 if (ret) {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 147
pr_err("SVKL: can't misc_register on minor=%d\n",
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 148
MISC_DYNAMIC_MINOR);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 149 return
ret;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 150 }
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 151
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 152
mutex_init(&svkl_lock);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 153
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 154 status =
acpi_get_table(ACPI_SIG_SVKL, 0, &svkl_tbl_hdr);
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 155 if
(ACPI_FAILURE(status) || !svkl_tbl_hdr) {
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 156
pr_err("get table failed\n");
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 157 return
-ENODEV;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 158 }
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 159
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 160
dump_svkl_header();
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 161
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 162 pr_info("ACPI:
SVKL module loaded\n");
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 163
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 @164 return 0;
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 165 }
370c68664d53ff Kuppuswamy Sathyanarayanan 2020-06-19 166
---
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[kbuild] [willy-pagecache:for-next 174/179] fs/nilfs2/inode.c:232 nilfs_dirty_folio() error: uninitialized symbol 'nr_dirty'.
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: "Matthew Wilcox (Oracle)"
tree: git://git.infradead.org/users/willy/pagecache for-next
head: 223ab4ed54499645015108bfbb3055e0f8c64613
commit: c5abb86e384b80b5b320c73668066e67142c706e [174/179] nilfs: Convert
nilfs_set_page_dirty() to nilfs_dirty_folio()
:: branch date: 26 hours ago
:: commit date: 26 hours ago
config: x86_64-randconfig-m001-20220314
(https://download.01.org/0day-ci/archive/20220316/202203162210.u0o3mmi4-...@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
fs/nilfs2/inode.c:232 nilfs_dirty_folio() error: uninitialized symbol
'nr_dirty'.
Old smatch warnings:
fs/nilfs2/inode.c:1084 nilfs_fiemap() warn: should 'n << blkbits' be a 64 bit
type?
fs/nilfs2/inode.c:1097 nilfs_fiemap() warn: should 'n << blkbits' be a 64 bit
type?
fs/nilfs2/inode.c:1104 nilfs_fiemap() warn: should 'n << blkbits' be a 64 bit
type?
vim +/nr_dirty +232 fs/nilfs2/inode.c
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 201
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 202) static bool
nilfs_dirty_folio(struct address_space *mapping,
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 203)struct
folio *folio)
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 204 {
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 205)struct inode
*inode = mapping->host;
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 206)struct
buffer_head *head;
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 207)unsigned int
nr_dirty;
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 208)bool ret =
filemap_dirty_folio(mapping, folio);
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 209
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 210 /*
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 211) * The page may
not be locked, eg if called from try_to_unmap_one()
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 212 */
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 213)
spin_lock(&mapping->private_lock);
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 214)head =
folio_buffers(folio);
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 215)if (head) {
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 216)struct
buffer_head *bh = head;
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 217)
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 218)
nr_dirty = 0;
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 219 do {
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 220
/* Do not mark hole blocks dirty */
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 221
if (buffer_dirty(bh) || !buffer_mapped(bh))
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 222
continue;
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 223
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 224
set_buffer_dirty(bh);
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 225
nr_dirty++;
136e8770cd5d1fe Ryusuke Konishi 2013-05-24 226 } while
(bh = bh->b_this_page, bh != head);
56d7acc792c0d98 Andreas Rohner 2014-09-25 227 } else if (ret)
{
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 228)
nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 229)}
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 230)
spin_unlock(&mapping->private_lock);
56d7acc792c0d98 Andreas Rohner 2014-09-25 231
c5abb86e384b80b Matthew Wilcox (Oracle 2022-02-09 @232)if (nr_dirty)
bcbc8c648d6cc88 Ryusuke Konishi 2010-12-27 233
nilfs_set_file_dirty(inode, nr_dirty);
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 234 return ret;
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 235 }
05fe58fdc10df9e Ryusuke Konishi 2009-04-06 236
---
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[kbuild] drivers/media/i2c/hi846.c:1494:21: warning: Value stored to 'client' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Martin Kepplinger CC: Mauro Carvalho Chehab CC: linux-me...@vger.kernel.org CC: Pavel Machek CC: Sakari Ailus tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 56e337f2cf1326323844927a04e9dbce9a244835 commit: e8c0882685f9152f0d729664a12bcbe749cb7736 media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera date: 5 months ago :: branch date: 21 hours ago :: commit date: 5 months ago config: riscv-randconfig-c006-20220307 (https://download.01.org/0day-ci/archive/20220316/202203162216.ysr2mny0-...@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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8c0882685f9152f0d729664a12bcbe749cb7736 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e8c0882685f9152f0d729664a12bcbe749cb7736 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 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/xfs/xfs_icache.c:746:2: note: Value stored to 'error' is never read error = 0; ^ ~ fs/xfs/xfs_icache.c:1667:2: warning: Value stored to 'nr_found' is never read [clang-analyzer-deadcode.DeadStores] nr_found = 0; ^ ~ fs/xfs/xfs_icache.c:1667:2: note: Value stored to 'nr_found' is never read nr_found = 0; ^ ~ Suppressed 10 warnings (9 in non-user code, 1 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 12 warnings generated. Suppressed 12 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 9 warnings generated. Suppressed 9 warnings (9 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. 10 warnings generated. Suppressed 10 warnings (10 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. 17 warnings generated. drivers/media/pci/saa7164/saa7164-encoder.c:597:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = saa7164_encoder_pause_port(port); ^ ~~~
[kbuild] drivers/perf/arm_smmuv3_pmu.c:349:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: John Garry
CC: Will Deacon
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 56e337f2cf1326323844927a04e9dbce9a244835
commit: e656972b69864348a747954ea187576808000c5a drivers/perf: Improve build
test coverage
date: 5 months ago
:: branch date: 21 hours ago
:: commit date: 5 months ago
config: riscv-randconfig-c006-20220313
(https://download.01.org/0day-ci/archive/20220316/202203162129.qyctdjxt-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
43f668b98e8d87290fc6bbf5ed13c3ab542e3497)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e656972b69864348a747954ea187576808000c5a
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e656972b69864348a747954ea187576808000c5a
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
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/xfs/xfs_sysfs.c:633:25: note: Passing value via 1st parameter 'kobj'
error = xfs_sysfs_init(&mp->m_error_kobj, &xfs_error_ktype,
^
fs/xfs/xfs_sysfs.c:633:10: note: Calling 'xfs_sysfs_init'
error = xfs_sysfs_init(&mp->m_error_kobj, &xfs_error_ktype,
^~~
fs/xfs/xfs_sysfs.h:37:11: note: Assuming 'parent_kobj' is null
parent = parent_kobj ? &parent_kobj->kobject : NULL;
^~~
fs/xfs/xfs_sysfs.h:37:11: note: '?' condition is false
fs/xfs/xfs_sysfs.h:38:18: note: Passing value via 1st parameter 'x'
init_completion(&kobj->complete);
^~~
fs/xfs/xfs_sysfs.h:38:2: note: Calling 'init_completion'
init_completion(&kobj->complete);
^~~~
include/linux/completion.h:86:10: note: Access to field 'done' results in a
dereference of a null pointer (loaded from variable 'x')
x->done = 0;
~ ^
Suppressed 9 warnings (2 in non-user code, 7 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.
9 warnings generated.
Suppressed 9 warnings (2 in non-user code, 7 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.
9 warnings generated.
Suppressed 9 warnings (2 in non-user code, 7 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.
9 warnings generated.
Suppressed 9 warnings (2 in non-user code, 7 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.
2 warnings generated.
Suppressed 2 warnings (2 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.
2 warnings generated.
Suppressed 2 warnings (2 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.
2 warnings generated.
Suppressed 2 warnings (2 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.
crypto/pcbc.c:74:10: warning: Although the value stored to 'nbytes' is used
in the enclosing expression, the value is never actually read from 'nbytes'
[clang-analyzer-deadcode.DeadStores]
while ((nbytes = walk.nbytes)) {
^~~~
crypto/pcbc.c:74:10: note: Although the value stored to 'nbytes' is used in
the enclosing expression, the value is never actually read from 'nbytes'
while ((nbytes = walk.nbytes)) {
^~~~
[kbuild] [osandov:btrfs-send-encoded 5/7] fs/btrfs/send.c:7705 btrfs_ioctl_send() error: we previously assumed 'sctx->send_buf_pages' could be null (see line 7492)
CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: Omar Sandoval
CC: linux-ker...@vger.kernel.org
TO: Omar Sandoval
CC: Nikolay Borisov
tree: https://github.com/osandov/linux.git btrfs-send-encoded
head: 5b9ba5f160f0ee412cf4d94f8e15b54b1ba04758
commit: e11574dd48a2e1674f9d65592595283a9284115e [5/7] btrfs: send: allocate
send buffer with alloc_page() and vmap() for v2
:: branch date: 15 hours ago
:: commit date: 15 hours ago
config: x86_64-randconfig-m001-20220314
(https://download.01.org/0day-ci/archive/20220316/202203161918.yllxvwcm-...@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
smatch warnings:
fs/btrfs/send.c:7705 btrfs_ioctl_send() error: we previously assumed
'sctx->send_buf_pages' could be null (see line 7492)
vim +7705 fs/btrfs/send.c
62d54f3a7fa27e Filipe Manana 2019-04-22 7387
9ad1230533efb6 Sahil Kang2022-01-15 7388 long
btrfs_ioctl_send(struct inode *inode, struct btrfs_ioctl_send_args *arg)
31db9f7c23fbf7 Alexander Block 2012-07-25 7389 {
31db9f7c23fbf7 Alexander Block 2012-07-25 7390 int ret = 0;
9ad1230533efb6 Sahil Kang2022-01-15 7391 struct
btrfs_root *send_root = BTRFS_I(inode)->root;
0b246afa62b0cf Jeff Mahoney 2016-06-22 7392 struct
btrfs_fs_info *fs_info = send_root->fs_info;
31db9f7c23fbf7 Alexander Block 2012-07-25 7393 struct
btrfs_root *clone_root;
31db9f7c23fbf7 Alexander Block 2012-07-25 7394 struct send_ctx
*sctx = NULL;
31db9f7c23fbf7 Alexander Block 2012-07-25 7395 u32 i;
e11574dd48a2e1 Omar Sandoval 2020-05-01 7396 u32
send_buf_num_pages = 0;
31db9f7c23fbf7 Alexander Block 2012-07-25 7397 u64
*clone_sources_tmp = NULL;
2c68653787f91c David Sterba 2013-12-16 7398 int
clone_sources_to_rollback = 0;
bae12df966f0e1 Denis Efremov 2020-09-21 7399 size_t
alloc_size;
896c14f97f700a Wang Shilong 2014-01-07 7400 int
sort_clone_roots = 0;
31db9f7c23fbf7 Alexander Block 2012-07-25 7401
31db9f7c23fbf7 Alexander Block 2012-07-25 7402 if
(!capable(CAP_SYS_ADMIN))
31db9f7c23fbf7 Alexander Block 2012-07-25 7403 return
-EPERM;
31db9f7c23fbf7 Alexander Block 2012-07-25 7404
2c68653787f91c David Sterba 2013-12-16 7405 /*
2c68653787f91c David Sterba 2013-12-16 7406* The
subvolume must remain read-only during send, protect against
521e0546c970c3 David Sterba 2014-04-15 7407* making it
RW. This also protects against deletion.
2c68653787f91c David Sterba 2013-12-16 7408*/
2c68653787f91c David Sterba 2013-12-16 7409
spin_lock(&send_root->root_item_lock);
62d54f3a7fa27e Filipe Manana 2019-04-22 7410 if
(btrfs_root_readonly(send_root) && send_root->dedupe_in_progress) {
62d54f3a7fa27e Filipe Manana 2019-04-22 7411
dedupe_in_progress_warn(send_root);
62d54f3a7fa27e Filipe Manana 2019-04-22 7412
spin_unlock(&send_root->root_item_lock);
62d54f3a7fa27e Filipe Manana 2019-04-22 7413 return
-EAGAIN;
62d54f3a7fa27e Filipe Manana 2019-04-22 7414 }
2c68653787f91c David Sterba 2013-12-16 7415
send_root->send_in_progress++;
2c68653787f91c David Sterba 2013-12-16 7416
spin_unlock(&send_root->root_item_lock);
2c68653787f91c David Sterba 2013-12-16 7417
2c68653787f91c David Sterba 2013-12-16 7418 /*
2c68653787f91c David Sterba 2013-12-16 7419* Userspace
tools do the checks and warn the user if it's
2c68653787f91c David Sterba 2013-12-16 7420* not RO.
2c68653787f91c David Sterba 2013-12-16 7421*/
2c68653787f91c David Sterba 2013-12-16 7422 if
(!btrfs_root_readonly(send_root)) {
2c68653787f91c David Sterba 2013-12-16 7423 ret =
-EPERM;
2c68653787f91c David Sterba 2013-12-16 7424 goto
out;
2c68653787f91c David Sterba 2013-12-16 7425 }
2c68653787f91c David Sterba 2013-12-16 7426
457ae7268b29c3 Dan Carpenter 2017-03-17 7427 /*
457ae7268b29c3 Dan Carpenter 2017-03-17 7428* Check that
we don't overflow at later allocations, we request
457ae7268b29c3 Dan Carpenter 2017-03-17 7429*
clone_sources_count + 1 items, and compare to unsigned long inside
457ae7268b29c3 Dan Carpenter 2017-03-17 7430* acce
[kbuild] [linux-next:master 4172/12845] drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c:415:5: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: Linux Memory Management List TO: Andrey Grodzovsky tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a32cd981a6da2373c093d471ee4405a915e217d5 commit: cfbb6b0047448e2d986160d9f30d60f604d9ad0f [4172/12845] drm/amdgpu: Rework reset domain to be refcounted. :: branch date: 20 hours ago :: commit date: 5 weeks ago config: riscv-randconfig-c006-20220310 (https://download.01.org/0day-ci/archive/20220316/202203161739.aybuljdg-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 276ca87382b8f16a65bddac700202924228982f6) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=cfbb6b0047448e2d986160d9f30d60f604d9ad0f git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout cfbb6b0047448e2d986160d9f30d60f604d9ad0f # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 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 >>) ^ ~~~ drivers/media/i2c/tvp7002.c:638:37: warning: The right operand of '&' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult] cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); ^ drivers/media/i2c/tvp7002.c:753:2: note: Calling 'tvp7002_query_dv' tvp7002_query_dv(sd, &detected); ^~~ drivers/media/i2c/tvp7002.c:618:2: note: 'cpl_msb' declared without an initial value u8 cpl_msb; ^~ drivers/media/i2c/tvp7002.c:627:6: note: Assuming 'error' is >= 0 if (error < 0) ^ drivers/media/i2c/tvp7002.c:627:2: note: Taking false branch if (error < 0) ^ drivers/media/i2c/tvp7002.c:631:2: note: Calling 'tvp7002_read_err' tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); ^~~ drivers/media/i2c/tvp7002.c:475:2: note: Taking false branch if (!*err) ^ drivers/media/i2c/tvp7002.c:477:1: note: Returning without writing to '*dst' } ^ drivers/media/i2c/tvp7002.c:631:2: note: Returning from 'tvp7002_read_err' tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); ^~~ drivers/media/i2c/tvp7002.c:633:6: note: 'error' is >= 0 if (error < 0) ^ drivers/media/i2c/tvp7002.c:633:2: note: Taking false branch if (error < 0) ^ drivers/media/i2c/tvp7002.c:638:37: note: The right operand of '&' is a garbage value cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); ^ ~~~ drivers/media/i2c/tvp7002.c:1004:2: warning: Value stored to 'error' is never read [clang-analyzer-deadcode.DeadStores] error = tvp7002_s_dv_timings(sd, &timings); ^ ~~ drivers/media/i2c/tvp7002.c:1004:2: note: Value stored to 'error' is never read error = tvp7002_s_dv_timings(sd, &timings); ^ ~~ 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. 5 warnings generated. Suppressed 5 warnings (5 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. Suppressed 5 warnings (5 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. Suppressed 5 warnings (5 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.
