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 --- fs/ntfs/ntfs_codec.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 fs/ntfs/ntfs_codec.h (limited to 'fs/ntfs/ntfs_codec.h') diff --git a/fs/ntfs/ntfs_codec.h b/fs/ntfs/ntfs_codec.h new file mode 100644 index 000000000..6030055fb --- /dev/null +++ b/fs/ntfs/ntfs_codec.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Transparent compression codec interface. + * + * Copyright (c) 2026 LG Electronics Co., Ltd. + */ + +#ifndef _NTFS_CODEC_H +#define _NTFS_CODEC_H + +#include +#include +#include + +struct compress_context; + +enum ntfs_codec_id { + NTFS_CODEC_LZNT1, +#ifdef CONFIG_NTFS_FS_WOF_COMPRESSION + NTFS_CODEC_XPRESS4K, + NTFS_CODEC_XPRESS8K, + NTFS_CODEC_XPRESS16K, + NTFS_CODEC_LZX32K, +#endif +}; + +struct ntfs_codec_ops { + enum ntfs_codec_id id; + const char *name; + size_t (*scratch_size)(u32 chunk_size); + int (*decompress_chunk)(void *scratch, + const void *src, size_t src_len, + void *dst, size_t dst_len, + u32 chunk_size); + int (*decompress_pages)(struct page *dest_pages[], + int completed_pages[], + int *dest_index, int *dest_ofs, + int dest_max_index, int dest_max_ofs, + int xpage, char *xpage_done, + u8 *cb_start, u32 cb_size, + loff_t i_size, s64 initialized_size); + int (*compress_subblock)(struct compress_context *pctx, + const char *inbuf, int bufsize, char *outbuf); +}; + +extern const struct ntfs_codec_ops ntfs_lznt1_codec_ops; +#ifdef CONFIG_NTFS_FS_WOF_COMPRESSION +extern const struct ntfs_codec_ops ntfs_xpress4k_codec_ops; +extern const struct ntfs_codec_ops ntfs_xpress8k_codec_ops; +extern const struct ntfs_codec_ops ntfs_xpress16k_codec_ops; +extern const struct ntfs_codec_ops ntfs_lzx32k_codec_ops; +#endif + +#endif /* _NTFS_CODEC_H */ -- cgit v1.3.1