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 --- drivers/target/Kconfig | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 drivers/target/Kconfig (limited to 'drivers/target/Kconfig') diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig new file mode 100644 index 000000000..92641d391 --- /dev/null +++ b/drivers/target/Kconfig @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: GPL-2.0-only + +menuconfig TARGET_CORE + tristate "Generic Target Core Mod (TCM) and ConfigFS Infrastructure" + depends on BLOCK + select CONFIGFS_FS + select CRC_T10DIF + select SCSI_COMMON + select SGL_ALLOC + default n + help + Say Y or M here to enable the TCM Storage Engine and ConfigFS enabled + control path for target_core_mod. This includes built-in TCM RAMDISK + subsystem logic for virtual LUN 0 access + +if TARGET_CORE + +config TCM_IBLOCK + tristate "TCM/IBLOCK Subsystem Plugin for Linux/BLOCK" + select BLK_DEV_INTEGRITY + help + Say Y here to enable the TCM/IBLOCK subsystem plugin for non-buffered + access to Linux/Block devices using BIO + +config TCM_FILEIO + tristate "TCM/FILEIO Subsystem Plugin for Linux/VFS" + help + Say Y here to enable the TCM/FILEIO subsystem plugin for buffered + access to Linux/VFS struct file or struct block_device + +config TCM_PSCSI + tristate "TCM/pSCSI Subsystem Plugin for Linux/SCSI" + depends on SCSI + help + Say Y here to enable the TCM/pSCSI subsystem plugin for non-buffered + passthrough access to Linux/SCSI device + +config TCM_USER2 + tristate "TCM/USER Subsystem Plugin for Linux" + depends on UIO && NET + help + Say Y here to enable the TCM/USER subsystem plugin for a userspace + process to handle requests. This is version 2 of the ABI; version 1 + is obsolete. + +source "drivers/target/loopback/Kconfig" +source "drivers/target/tcm_fc/Kconfig" +source "drivers/target/iscsi/Kconfig" +source "drivers/target/sbp/Kconfig" +source "drivers/target/tcm_remote/Kconfig" + +endif -- cgit v1.3.1