From: Bjorn Helgaas <helgaas@kernel.org>
To: linux-pci@vger.kernel.org
Cc: "Jon Pan-Doh" <pandoh@google.com>,
"Karolina Stolarek" <karolina.stolarek@oracle.com>,
"Weinan Liu" <wnliu@google.com>,
"Martin Petersen" <martin.petersen@oracle.com>,
"Ben Fuller" <ben.fuller@oracle.com>,
"Drew Walton" <drewwalton@microsoft.com>,
"Anil Agrawal" <anilagrawal@meta.com>,
"Tony Luck" <tony.luck@intel.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Sathyanarayanan Kuppuswamy"
<sathyanarayanan.kuppuswamy@linux.intel.com>,
"Lukas Wunner" <lukas@wunner.de>,
"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
"Sargun Dhillon" <sargun@meta.com>,
"Paul E . McKenney" <paulmck@kernel.org>,
"Mahesh J Salgaonkar" <mahesh@linux.ibm.com>,
"Oliver O'Halloran" <oohall@gmail.com>,
"Kai-Heng Feng" <kaihengf@nvidia.com>,
"Keith Busch" <kbusch@kernel.org>,
"Robert Richter" <rrichter@amd.com>,
"Terry Bowman" <terry.bowman@amd.com>,
"Shiju Jose" <shiju.jose@huawei.com>,
"Dave Jiang" <dave.jiang@intel.com>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>
Subject: [PATCH v8 01/20] PCI/DPC: Initialize aer_err_info before using it
Date: Thu, 22 May 2025 18:21:07 -0500 [thread overview]
Message-ID: <20250522232339.1525671-2-helgaas@kernel.org> (raw)
In-Reply-To: <20250522232339.1525671-1-helgaas@kernel.org>
From: Bjorn Helgaas <bhelgaas@google.com>
Previously the struct aer_err_info "info" was allocated on the stack
without being initialized, so it contained junk except for the fields we
explicitly set later.
Initialize "info" at declaration so it starts as all zeros.
Fixes: 8aefa9b0d910 ("PCI/DPC: Print AER status in DPC event handling")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://patch.msgid.link/20250520215047.1350603-2-helgaas@kernel.org
---
drivers/pci/pcie/dpc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index df42f15c9829..3daaf61c79c9 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -258,7 +258,7 @@ static int dpc_get_aer_uncorrect_severity(struct pci_dev *dev,
void dpc_process_error(struct pci_dev *pdev)
{
u16 cap = pdev->dpc_cap, status, source, reason, ext_reason;
- struct aer_err_info info;
+ struct aer_err_info info = {};
pci_read_config_word(pdev, cap + PCI_EXP_DPC_STATUS, &status);
pci_read_config_word(pdev, cap + PCI_EXP_DPC_SOURCE_ID, &source);
--
2.43.0
next prev parent reply other threads:[~2025-05-22 23:23 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-22 23:21 [PATCH v8 00/20] Rate limit AER logs Bjorn Helgaas
2025-05-22 23:21 ` Bjorn Helgaas [this message]
2025-05-22 23:21 ` [PATCH v8 02/20] PCI/DPC: Log Error Source ID only when valid Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 03/20] PCI/AER: Factor COR/UNCOR error handling out from aer_isr_one_error() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 04/20] PCI/AER: Consolidate Error Source ID logging in aer_isr_one_error_type() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 05/20] PCI/AER: Extract bus/dev/fn in aer_print_port_info() with PCI_BUS_NUM(), etc Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 06/20] PCI/AER: Rename aer_print_port_info() to aer_print_source() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 07/20] PCI/AER: Move aer_print_source() earlier in file Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 08/20] PCI/AER: Initialize aer_err_info before using it Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 09/20] PCI/AER: Simplify pci_print_aer() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 10/20] PCI/AER: Update statistics before ratelimiting Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 11/20] PCI/AER: Trace error event " Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 12/20] PCI/AER: Check log level once and remember it Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 13/20] PCI/ERR: Add printk level to pcie_print_tlp_log() Bjorn Helgaas
2025-05-22 23:44 ` Sathyanarayanan Kuppuswamy
2025-05-23 9:56 ` Ilpo Järvinen
2025-05-28 6:38 ` Lukas Wunner
2025-05-28 10:00 ` Ilpo Järvinen
2025-05-22 23:21 ` [PATCH v8 14/20] PCI/AER: Reduce pci_print_aer() correctable error level to KERN_WARNING Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 15/20] PCI/AER: Rename struct aer_stats to aer_info Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 16/20] PCI/AER: Convert aer_get_device_error_info(), aer_print_error() to index Bjorn Helgaas
2025-05-22 23:58 ` Sathyanarayanan Kuppuswamy
2025-05-23 11:13 ` Ilpo Järvinen
2025-05-23 16:12 ` Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 17/20] PCI/AER: Simplify add_error_device() Bjorn Helgaas
2025-05-22 23:57 ` Sathyanarayanan Kuppuswamy
2025-05-23 11:14 ` Ilpo Järvinen
2025-05-22 23:21 ` [PATCH v8 18/20] PCI/AER: Ratelimit correctable and non-fatal error logging Bjorn Helgaas
2025-05-22 23:56 ` Sathyanarayanan Kuppuswamy
2025-05-23 16:06 ` Bjorn Helgaas
2025-08-01 13:16 ` Breno Leitao
2025-08-01 13:35 ` Breno Leitao
2025-10-01 21:38 ` Bjorn Helgaas
2025-10-02 9:08 ` Breno Leitao
2025-05-22 23:21 ` [PATCH v8 19/20] PCI/AER: Add ratelimits to PCI AER Documentation Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 20/20] PCI/AER: Add sysfs attributes for log ratelimits Bjorn Helgaas
2025-05-22 23:50 ` Sathyanarayanan Kuppuswamy
2025-05-23 16:21 ` [PATCH v8 00/20] Rate limit AER logs Bjorn Helgaas
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