Messages in this thread | | | Date | Mon, 25 Dec 2023 19:54:09 +0800 | From | kernel test robot <> | Subject | net/sunrpc/auth.c:725:34: sparse: sparse: incorrect type in initializer (different address spaces) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 861deac3b092f37b2c5e6871732f3e11486f7082 commit: 5e16923b432bfe79fdfb7cd95ed8e63f6438b663 NFS/SUNRPC: don't lookup machine credential until rpcauth_bindcred(). date: 5 years ago config: x86_64-randconfig-x001-20230717 (https://download.01.org/0day-ci/archive/20231225/202312251922.sGIFj35A-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231225/202312251922.sGIFj35A-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202312251922.sGIFj35A-lkp@intel.com/
sparse warnings: (new ones prefixed by >>) >> net/sunrpc/auth.c:725:34: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct cred const *cred @@ got struct cred const [noderef] __rcu *extern [addressable] [toplevel] cred @@ net/sunrpc/auth.c:725:34: sparse: expected struct cred const *cred net/sunrpc/auth.c:725:34: sparse: got struct cred const [noderef] __rcu *extern [addressable] [toplevel] cred net/sunrpc/auth.c: note: in included file: include/linux/slab.h:332:43: sparse: sparse: dubious: x & !y include/linux/slab.h:332:43: sparse: sparse: dubious: x & !y
vim +725 net/sunrpc/auth.c
718 719 static struct rpc_cred * 720 rpcauth_bind_machine_cred(struct rpc_task *task, int lookupflags) 721 { 722 struct rpc_auth *auth = task->tk_client->cl_auth; 723 struct auth_cred acred = { 724 .principal = task->tk_client->cl_principal, > 725 .cred = init_task.cred, 726 }; 727 728 if (!acred.principal) 729 return NULL; 730 dprintk("RPC: %5u looking up %s machine cred\n", 731 task->tk_pid, task->tk_client->cl_auth->au_ops->au_name); 732 return auth->au_ops->lookup_cred(auth, &acred, lookupflags); 733 } 734
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