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 --- include/net/rsi_91x.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 include/net/rsi_91x.h (limited to 'include/net/rsi_91x.h') diff --git a/include/net/rsi_91x.h b/include/net/rsi_91x.h new file mode 100644 index 000000000..b2283762e --- /dev/null +++ b/include/net/rsi_91x.h @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2017 Redpine Signals Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __RSI_HEADER_H__ +#define __RSI_HEADER_H__ + +#include + +/* HAL queue information */ +#define RSI_COEX_Q 0x0 +#define RSI_BT_Q 0x2 +#define RSI_WLAN_Q 0x3 +#define RSI_WIFI_MGMT_Q 0x4 +#define RSI_WIFI_DATA_Q 0x5 +#define RSI_BT_MGMT_Q 0x6 +#define RSI_BT_DATA_Q 0x7 + +enum rsi_coex_queues { + RSI_COEX_Q_INVALID = -1, + RSI_COEX_Q_COMMON = 0, + RSI_COEX_Q_BT, + RSI_COEX_Q_WLAN +}; + +enum rsi_host_intf { + RSI_HOST_INTF_SDIO = 0, + RSI_HOST_INTF_USB +}; + +struct rsi_proto_ops { + int (*coex_send_pkt)(void *priv, struct sk_buff *skb, u8 hal_queue); + enum rsi_host_intf (*get_host_intf)(void *priv); + void (*set_bt_context)(void *priv, void *context); +}; + +struct rsi_mod_ops { + int (*attach)(void *priv, struct rsi_proto_ops *ops); + void (*detach)(void *priv); + int (*recv_pkt)(void *priv, const u8 *msg); +}; + +extern const struct rsi_mod_ops rsi_bt_ops; +#endif -- cgit v1.3.1