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Date: Wed, 28 Dec 2022 02:29:51 +0800
From: kernel test robot <lkp@...el.com>
To: junhua huang <huang.junhua@....com.cn>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Will Deacon <will@...nel.org>
Subject: kernel/events/uprobes.c:223:25: sparse: sparse: restricted __le32
degrades to integer
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1b929c02afd37871d5afb9d498426f83432e71c2
commit: 60f07e22a73d318cddaafa5ef41a10476807cc07 arm64:uprobe fix the uprobe SWBP_INSN in big-endian
date: 3 weeks ago
config: arm64-randconfig-s032-20221227
compiler: aarch64-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=60f07e22a73d318cddaafa5ef41a10476807cc07
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 60f07e22a73d318cddaafa5ef41a10476807cc07
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/pci/ kernel/events/ mm/kasan/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> kernel/events/uprobes.c:223:25: sparse: sparse: restricted __le32 degrades to integer
>> kernel/events/uprobes.c:574:56: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned int [addressable] [usertype] opcode @@ got restricted __le32 [usertype] @@
kernel/events/uprobes.c:574:56: sparse: expected unsigned int [addressable] [usertype] opcode
kernel/events/uprobes.c:574:56: sparse: got restricted __le32 [usertype]
>> kernel/events/uprobes.c:1483:32: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] insn @@ got restricted __le32 [usertype] @@
kernel/events/uprobes.c:1483:32: sparse: expected unsigned int [usertype] insn
kernel/events/uprobes.c:1483:32: sparse: got restricted __le32 [usertype]
kernel/events/uprobes.c:1975:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/events/uprobes.c:1975:33: sparse: expected struct spinlock [usertype] *lock
kernel/events/uprobes.c:1975:33: sparse: got struct spinlock [noderef] __rcu *
kernel/events/uprobes.c:1977:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/events/uprobes.c:1977:35: sparse: expected struct spinlock [usertype] *lock
kernel/events/uprobes.c:1977:35: sparse: got struct spinlock [noderef] __rcu *
kernel/events/uprobes.c:2278:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/events/uprobes.c:2278:31: sparse: expected struct spinlock [usertype] *lock
kernel/events/uprobes.c:2278:31: sparse: got struct spinlock [noderef] __rcu *
kernel/events/uprobes.c:2280:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/events/uprobes.c:2280:33: sparse: expected struct spinlock [usertype] *lock
kernel/events/uprobes.c:2280:33: sparse: got struct spinlock [noderef] __rcu *
kernel/events/uprobes.c: note: in included file:
include/linux/rmap.h:410:28: sparse: sparse: context imbalance in '__replace_page' - unexpected unlock
kernel/events/uprobes.c: note: in included file (through include/linux/irqflags.h, include/linux/spinlock.h, include/linux/wait.h, ...):
arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
vim +223 kernel/events/uprobes.c
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 214
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 215 /**
5cb4ac3a583d4e kernel/events/uprobes.c Srikar Dronamraju 2012-03-12 216 * is_swbp_insn - check if instruction is breakpoint instruction.
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 217 * @insn: instruction to be checked.
5cb4ac3a583d4e kernel/events/uprobes.c Srikar Dronamraju 2012-03-12 218 * Default implementation of is_swbp_insn
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 219 * Returns true if @insn is a breakpoint instruction.
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 220 */
5cb4ac3a583d4e kernel/events/uprobes.c Srikar Dronamraju 2012-03-12 221 bool __weak is_swbp_insn(uprobe_opcode_t *insn)
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 222 {
5cb4ac3a583d4e kernel/events/uprobes.c Srikar Dronamraju 2012-03-12 @223 return *insn == UPROBE_SWBP_INSN;
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 224 }
2b144498350860 kernel/uprobes.c Srikar Dronamraju 2012-02-09 225
:::::: The code at line 223 was first introduced by commit
:::::: 5cb4ac3a583d4ee18c8682ab857e093c4a0d0895 uprobes/core: Rename bkpt to swbp
:::::: TO: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
:::::: CC: Ingo Molnar <mingo@...e.hu>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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