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| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2026-09-03 10:43:25 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-09-10 18:05:43 -0700 |
| commit | 27600805e62f800bacf990354632eae4e487d34c (patch) | |
| tree | e8aec0ddfaa0bc264d79af632e3de3f1b75ae4c8 /drivers/net/ipa/Makefile | |
| download | linux-stable-27600805e62f800bacf990354632eae4e487d34c.tar.gz linux-stable-27600805e62f800bacf990354632eae4e487d34c.zip | |
x86/amd_node: Fix PCI device reference counting in amd_smn_init()grafted
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 <sashiko-bot@kernel.org>
Assisted-by: LLM
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/net/ipa/Makefile')
| -rw-r--r-- | drivers/net/ipa/Makefile | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ipa/Makefile b/drivers/net/ipa/Makefile new file mode 100644 index 000000000..e148ec3c1 --- /dev/null +++ b/drivers/net/ipa/Makefile @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Qualcomm IPA driver. + +IPA_REG_VERSIONS := 3.1 3.5.1 4.2 4.5 4.7 4.9 4.11 5.0 5.5 + +# Some IPA versions can reuse another set of GSI register definitions. +GSI_REG_VERSIONS := 3.1 3.5.1 4.0 4.5 4.9 4.11 5.0 + +IPA_DATA_VERSIONS := 3.1 3.5.1 4.2 4.5 4.7 4.9 4.11 5.0 5.2 5.5 + +obj-$(CONFIG_QCOM_IPA) += ipa.o + +ipa-y := ipa_main.o ipa_power.o ipa_reg.o ipa_mem.o \ + ipa_table.o ipa_interrupt.o gsi.o gsi_reg.o \ + gsi_trans.o ipa_gsi.o ipa_smp2p.o ipa_uc.o \ + ipa_endpoint.o ipa_cmd.o ipa_modem.o \ + ipa_resource.o ipa_qmi.o ipa_qmi_msg.o \ + ipa_sysfs.o + +ipa-y += $(IPA_REG_VERSIONS:%=reg/ipa_reg-v%.o) + +ipa-y += $(GSI_REG_VERSIONS:%=reg/gsi_reg-v%.o) + +ipa-y += $(IPA_DATA_VERSIONS:%=data/ipa_data-v%.o) |