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Date: Sat, 1 Oct 2022 09:18:04 +0800
From: kernel test robot <lkp@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [kas:lam 5/16] fs/cifs/dfs_cache.c:308:14: sparse: sparse: incorrect
type in assignment (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git lam
head: fd053f88c1b7e1acac9fbaeab44c8f675bb9c287
commit: 2979bb830b677ffdc1a842f9dfb835f313b602f7 [5/16] x86/uaccess: Provide untagged_addr() and remove tags before address check
config: x86_64-randconfig-s021
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git/commit/?id=2979bb830b677ffdc1a842f9dfb835f313b602f7
git remote add kas https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git
git fetch --no-tags kas lam
git checkout 2979bb830b677ffdc1a842f9dfb835f313b602f7
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/infiniband/core/ drivers/usb/gadget/function/ drivers/vdpa/vdpa_user/ fs/cifs/ net/ipv4/ net/l2tp/ net/smc/ net/tipc/ net/vmw_vsock/
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 >>)
>> fs/cifs/dfs_cache.c:308:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char const [noderef] __user *__ptr_clean @@ got char const * @@
fs/cifs/dfs_cache.c:308:14: sparse: expected char const [noderef] __user *__ptr_clean
fs/cifs/dfs_cache.c:308:14: sparse: got char const *
--
>> drivers/vdpa/vdpa_user/vduse_dev.c:1083:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] __user *__ptr_clean @@ got unsigned long long * @@
drivers/vdpa/vdpa_user/vduse_dev.c:1083:23: sparse: expected unsigned long long [noderef] __user *__ptr_clean
drivers/vdpa/vdpa_user/vduse_dev.c:1083:23: sparse: got unsigned long long *
>> drivers/vdpa/vdpa_user/vduse_dev.c:1188:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned int [noderef] __user *__ptr_clean @@ got unsigned int * @@
drivers/vdpa/vdpa_user/vduse_dev.c:1188:21: sparse: expected unsigned int [noderef] __user *__ptr_clean
drivers/vdpa/vdpa_user/vduse_dev.c:1188:21: sparse: got unsigned int *
drivers/vdpa/vdpa_user/vduse_dev.c:1562:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] __user *__ptr_clean @@ got unsigned long long * @@
drivers/vdpa/vdpa_user/vduse_dev.c:1562:23: sparse: expected unsigned long long [noderef] __user *__ptr_clean
drivers/vdpa/vdpa_user/vduse_dev.c:1562:23: sparse: got unsigned long long *
drivers/vdpa/vdpa_user/vduse_dev.c:1568:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] __user *__ptr_clean @@ got unsigned long long * @@
drivers/vdpa/vdpa_user/vduse_dev.c:1568:21: sparse: expected unsigned long long [noderef] __user *__ptr_clean
drivers/vdpa/vdpa_user/vduse_dev.c:1568:21: sparse: got unsigned long long *
--
>> drivers/infiniband/core/uverbs_main.c:632:31: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long const [noderef] __user *__ptr_clean @@ got unsigned long long const * @@
drivers/infiniband/core/uverbs_main.c:632:31: sparse: expected unsigned long long const [noderef] __user *__ptr_clean
drivers/infiniband/core/uverbs_main.c:632:31: sparse: got unsigned long long const *
--
>> drivers/infiniband/core/uverbs_ioctl.c:157:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned short [noderef] __user *__ptr_clean @@ got unsigned short * @@
drivers/infiniband/core/uverbs_ioctl.c:157:13: sparse: expected unsigned short [noderef] __user *__ptr_clean
drivers/infiniband/core/uverbs_ioctl.c:157:13: sparse: got unsigned short *
>> drivers/infiniband/core/uverbs_ioctl.c:334:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] __user *__ptr_clean @@ got unsigned long long * @@
drivers/infiniband/core/uverbs_ioctl.c:334:29: sparse: expected unsigned long long [noderef] __user *__ptr_clean
drivers/infiniband/core/uverbs_ioctl.c:334:29: sparse: got unsigned long long *
drivers/infiniband/core/uverbs_ioctl.c:423:17: sparse: sparse: incorrect type in assignment (different modifiers) @@ expected int ( *handler )( ... ) @@ got int ( [noderef] * )( ... ) @@
drivers/infiniband/core/uverbs_ioctl.c:423:17: sparse: expected int ( *handler )( ... )
drivers/infiniband/core/uverbs_ioctl.c:423:17: sparse: got int ( [noderef] * )( ... )
--
>> drivers/usb/gadget/function/rndis.c:1138:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char const [noderef] __user *__ptr_clean @@ got char const * @@
drivers/usb/gadget/function/rndis.c:1138:21: sparse: expected char const [noderef] __user *__ptr_clean
drivers/usb/gadget/function/rndis.c:1138:21: sparse: got char const *
--
>> net/ipv4/ipmr.c:1580:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/ipv4/ipmr.c:1580:13: sparse: expected int [noderef] __user *__ptr_clean
net/ipv4/ipmr.c:1580:13: sparse: got int *
net/ipv4/ipmr.c:1585:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/ipv4/ipmr.c:1585:13: sparse: expected int [noderef] __user *__ptr_clean
net/ipv4/ipmr.c:1585:13: sparse: got int *
net/ipv4/ipmr.c:2896:13: sparse: sparse: context imbalance in 'ipmr_vif_seq_start' - different lock contexts for basic block
net/ipv4/ipmr.c: note: in included file (through include/linux/mroute.h):
include/linux/mroute_base.h:432:31: sparse: sparse: context imbalance in 'mr_mfc_seq_stop' - unexpected unlock
--
>> net/l2tp/l2tp_ip.c:585:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/l2tp/l2tp_ip.c:585:16: sparse: expected int [noderef] __user *__ptr_clean
net/l2tp/l2tp_ip.c:585:16: sparse: got int *
--
>> net/smc/af_smc.c:2860:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/smc/af_smc.c:2860:13: sparse: expected int [noderef] __user *__ptr_clean
net/smc/af_smc.c:2860:13: sparse: got int *
net/smc/af_smc.c:2876:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/smc/af_smc.c:2876:13: sparse: expected int [noderef] __user *__ptr_clean
net/smc/af_smc.c:2876:13: sparse: got int *
net/smc/af_smc.c:3108:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/smc/af_smc.c:3108:16: sparse: expected int [noderef] __user *__ptr_clean
net/smc/af_smc.c:3108:16: sparse: got int *
--
>> net/tipc/socket.c:3243:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/tipc/socket.c:3243:24: sparse: expected int [noderef] __user *__ptr_clean
net/tipc/socket.c:3243:24: sparse: got int *
net/tipc/socket.c:3246:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/tipc/socket.c:3246:15: sparse: expected int [noderef] __user *__ptr_clean
net/tipc/socket.c:3246:15: sparse: got int *
net/tipc/socket.c:3296:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/tipc/socket.c:3296:16: sparse: expected int [noderef] __user *__ptr_clean
net/tipc/socket.c:3296:16: sparse: got int *
--
>> net/vmw_vsock/af_vsock.c:1689:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/vmw_vsock/af_vsock.c:1689:13: sparse: expected int [noderef] __user *__ptr_clean
net/vmw_vsock/af_vsock.c:1689:13: sparse: got int *
net/vmw_vsock/af_vsock.c:1724:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected int [noderef] __user *__ptr_clean @@ got int * @@
net/vmw_vsock/af_vsock.c:1724:13: sparse: expected int [noderef] __user *__ptr_clean
net/vmw_vsock/af_vsock.c:1724:13: sparse: got int *
>> net/vmw_vsock/af_vsock.c:2253:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned int [noderef] __user *__ptr_clean @@ got unsigned int * @@
net/vmw_vsock/af_vsock.c:2253:21: sparse: expected unsigned int [noderef] __user *__ptr_clean
net/vmw_vsock/af_vsock.c:2253:21: sparse: got unsigned int *
vim +308 fs/cifs/dfs_cache.c
54be1f6c1c3749 Paulo Alcantara 2018-11-14 301
54be1f6c1c3749 Paulo Alcantara 2018-11-14 302 static ssize_t dfscache_proc_write(struct file *file, const char __user *buffer,
54be1f6c1c3749 Paulo Alcantara 2018-11-14 303 size_t count, loff_t *ppos)
54be1f6c1c3749 Paulo Alcantara 2018-11-14 304 {
54be1f6c1c3749 Paulo Alcantara 2018-11-14 305 char c;
54be1f6c1c3749 Paulo Alcantara 2018-11-14 306 int rc;
54be1f6c1c3749 Paulo Alcantara 2018-11-14 307
54be1f6c1c3749 Paulo Alcantara 2018-11-14 @308 rc = get_user(c, buffer);
54be1f6c1c3749 Paulo Alcantara 2018-11-14 309 if (rc)
54be1f6c1c3749 Paulo Alcantara 2018-11-14 310 return rc;
54be1f6c1c3749 Paulo Alcantara 2018-11-14 311
54be1f6c1c3749 Paulo Alcantara 2018-11-14 312 if (c != '0')
54be1f6c1c3749 Paulo Alcantara 2018-11-14 313 return -EINVAL;
54be1f6c1c3749 Paulo Alcantara 2018-11-14 314
a0a3036b81f1f6 Joe Perches 2020-04-14 315 cifs_dbg(FYI, "clearing dfs cache\n");
742d8de0186e9f Paulo Alcantara (SUSE 2019-12-04 316)
742d8de0186e9f Paulo Alcantara (SUSE 2019-12-04 317) down_write(&htable_rw_lock);
54be1f6c1c3749 Paulo Alcantara 2018-11-14 318 flush_cache_ents();
742d8de0186e9f Paulo Alcantara (SUSE 2019-12-04 319) up_write(&htable_rw_lock);
54be1f6c1c3749 Paulo Alcantara 2018-11-14 320
54be1f6c1c3749 Paulo Alcantara 2018-11-14 321 return count;
54be1f6c1c3749 Paulo Alcantara 2018-11-14 322 }
54be1f6c1c3749 Paulo Alcantara 2018-11-14 323
:::::: The code at line 308 was first introduced by commit
:::::: 54be1f6c1c37498bba557049df646cc239fa37e3 cifs: Add DFS cache routines
:::::: TO: Paulo Alcantara <palcantara@...e.de>
:::::: CC: Steve French <stfrench@...rosoft.com>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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