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/wireless/Makefile | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 net/wireless/Makefile (limited to 'net/wireless/Makefile') diff --git a/net/wireless/Makefile b/net/wireless/Makefile new file mode 100644 index 000000000..a77fd5ba6 --- /dev/null +++ b/net/wireless/Makefile @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CFG80211) += cfg80211.o +obj-y += tests/ + +obj-$(CONFIG_WEXT_CORE) += wext-core.o +obj-$(CONFIG_WEXT_PROC) += wext-proc.o +obj-$(CONFIG_WEXT_PRIV) += wext-priv.o + +cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o +cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o trace.o ocb.o +cfg80211-y += michael-mic.o pmsr.o +cfg80211-$(CONFIG_OF) += of.o +cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o +cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o + +CFLAGS_trace.o := -I$(src) + +cfg80211-$(CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS) += shipped-certs.o +ifneq ($(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR),) +cfg80211-y += extra-certs.o +endif + +$(obj)/shipped-certs.c: $(sort $(wildcard $(src)/certs/*.hex)) + @$(kecho) " GEN $@" + $(Q)(echo '#include "reg.h"'; \ + echo 'const u8 shipped_regdb_certs[] = {'; \ + echo | cat - $^ ; \ + echo '};'; \ + echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \ + ) > $@ + +$(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR) \ + $(sort $(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR)/*.x509)) + @$(kecho) " GEN $@" + $(Q)(set -e; \ + allf=""; \ + for f in $^ ; do \ + test -f $$f || continue;\ + # similar to hexdump -v -e '1/1 "0x%.2x," "\n"' \ + thisf=$$(od -An -v -tx1 < $$f | \ + sed -e 's/ /\n/g' | \ + sed -e 's/^[0-9a-f]\+$$/\0/;t;d' | \ + sed -e 's/^/0x/;s/$$/,/'); \ + # file should not be empty - maybe command substitution failed? \ + test ! -z "$$thisf";\ + allf=$$allf$$thisf;\ + done; \ + ( \ + echo '#include "reg.h"'; \ + echo 'const u8 extra_regdb_certs[] = {'; \ + echo "$$allf"; \ + echo '};'; \ + echo 'unsigned int extra_regdb_certs_len = sizeof(extra_regdb_certs);'; \ + ) > $@) + +clean-files += shipped-certs.c extra-certs.c -- cgit v1.3.1