From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- net/sunrpc/netns.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 net/sunrpc/netns.h (limited to 'net/sunrpc/netns.h') diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h new file mode 100644 index 000000000..4efb5f28d --- /dev/null +++ b/net/sunrpc/netns.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __SUNRPC_NETNS_H__ +#define __SUNRPC_NETNS_H__ + +#include +#include + +struct cache_detail; + +struct sunrpc_net { + struct proc_dir_entry *proc_net_rpc; + struct cache_detail *ip_map_cache; + struct cache_detail *unix_gid_cache; + struct cache_detail *rsc_cache; + struct cache_detail *rsi_cache; + + struct super_block *pipefs_sb; + struct rpc_pipe *gssd_dummy; + struct mutex pipefs_sb_lock; + + struct list_head all_clients; + spinlock_t rpc_client_lock; + + struct rpc_clnt *rpcb_local_clnt; + struct rpc_clnt *rpcb_local_clnt4; + spinlock_t rpcb_clnt_lock; + unsigned int rpcb_users; + unsigned int rpcb_is_af_local : 1; + + struct mutex gssp_lock; + struct rpc_clnt *gssp_clnt; + int use_gss_proxy; + int pipe_version; + atomic_t pipe_users; + struct proc_dir_entry *use_gssp_proc; + struct proc_dir_entry *gss_krb5_enctypes; +}; + +extern unsigned int sunrpc_net_id; + +int ip_map_cache_create(struct net *); +void ip_map_cache_destroy(struct net *); + +#endif -- cgit v1.3.1