On 5/19/25 2:35 PM, Bjorn Helgaas wrote:
From: Bjorn Helgaas <bhelg...@google.com>

Previously the struct aer_err_info "e_info" was allocated on the stack
without being initialized, so it contained junk except for the fields we
explicitly set later.

Initialize "e_info" at declaration with a designated initializer list,
which initializes the other members to zero.

Signed-off-by: Bjorn Helgaas <bhelg...@google.com>
---

Reviewed-by: Kuppuswamy Sathyanarayanan 
<sathyanarayanan.kuppusw...@linux.intel.com>

  drivers/pci/pcie/aer.c | 37 ++++++++++++++++---------------------
  1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 95a4cab1d517..40f003eca1c5 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -1281,7 +1281,7 @@ static void aer_isr_one_error(struct aer_rpc *rpc,
                struct aer_err_source *e_src)
  {
        struct pci_dev *pdev = rpc->rpd;
-       struct aer_err_info e_info;
+       u32 status = e_src->status;
pci_rootport_aer_stats_incr(pdev, e_src); @@ -1289,14 +1289,13 @@ static void aer_isr_one_error(struct aer_rpc *rpc,
         * There is a possibility that both correctable error and
         * uncorrectable error being logged. Report correctable error first.
         */
-       if (e_src->status & PCI_ERR_ROOT_COR_RCV) {
-               e_info.id = ERR_COR_ID(e_src->id);
-               e_info.severity = AER_CORRECTABLE;
-
-               if (e_src->status & PCI_ERR_ROOT_MULTI_COR_RCV)
-                       e_info.multi_error_valid = 1;
-               else
-                       e_info.multi_error_valid = 0;
+       if (status & PCI_ERR_ROOT_COR_RCV) {
+               int multi = status & PCI_ERR_ROOT_MULTI_COR_RCV;
+               struct aer_err_info e_info = {
+                       .id = ERR_COR_ID(e_src->id),
+                       .severity = AER_CORRECTABLE,
+                       .multi_error_valid = multi ? 1 : 0,
+               };
if (find_source_device(pdev, &e_info)) {
                        aer_print_source(pdev, &e_info, "");
@@ -1304,18 +1303,14 @@ static void aer_isr_one_error(struct aer_rpc *rpc,
                }
        }
- if (e_src->status & PCI_ERR_ROOT_UNCOR_RCV) {
-               e_info.id = ERR_UNCOR_ID(e_src->id);
-
-               if (e_src->status & PCI_ERR_ROOT_FATAL_RCV)
-                       e_info.severity = AER_FATAL;
-               else
-                       e_info.severity = AER_NONFATAL;
-
-               if (e_src->status & PCI_ERR_ROOT_MULTI_UNCOR_RCV)
-                       e_info.multi_error_valid = 1;
-               else
-                       e_info.multi_error_valid = 0;
+       if (status & PCI_ERR_ROOT_UNCOR_RCV) {
+               int fatal = status & PCI_ERR_ROOT_FATAL_RCV;
+               int multi = status & PCI_ERR_ROOT_MULTI_UNCOR_RCV;
+               struct aer_err_info e_info = {
+                       .id = ERR_UNCOR_ID(e_src->id),
+                       .severity = fatal ? AER_FATAL : AER_NONFATAL,
+                       .multi_error_valid = multi ? 1 : 0,
+               };
if (find_source_device(pdev, &e_info)) {
                        aer_print_source(pdev, &e_info, "");

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer


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