diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2025-03-16 09:32:54 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-04-03 11:38:14 -0600 |
| commit | fe8844f4ad7189a6309976ecc841d55735e3534a (patch) | |
| tree | 4e923dfa82eebb4b1349d77c66814c2f59aca737 /lib/acpi/acpi_table.c | |
| parent | 0ae343239b702336d2c0a4f73a9a953d5a15b2af (diff) | |
acpi: Clear reserved bits in IORT
The IORT spec says that reserved bits must be set to zero, thus clear
all fields of the struct before starting to fill out non-reserved
fields.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Diffstat (limited to 'lib/acpi/acpi_table.c')
| -rw-r--r-- | lib/acpi/acpi_table.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c index 97cd8e8ddb0..fc43862ec37 100644 --- a/lib/acpi/acpi_table.c +++ b/lib/acpi/acpi_table.c @@ -615,6 +615,7 @@ int acpi_iort_add_named_component(struct acpi_ctx *ctx, node->length += strlen(device_name) + 1; comp = (struct acpi_iort_named_component *)node->node_data; + memset(comp, '\0', sizeof(struct acpi_iort_named_component)); comp->node_flags = node_flags; comp->memory_properties = memory_properties; @@ -655,6 +656,8 @@ int acpi_iort_add_rc(struct acpi_ctx *ctx, node->length += sizeof(struct acpi_iort_id_mapping) * num_mappings; rc = (struct acpi_iort_rc *)node->node_data; + memset(rc, '\0', sizeof(struct acpi_iort_rc)); + rc->mem_access_properties = mem_access_properties; rc->ats_attributes = ats_attributes; rc->pci_segment_number = pci_segment_number; @@ -713,6 +716,7 @@ int acpi_iort_add_smmu_v3(struct acpi_ctx *ctx, node->length += sizeof(struct acpi_iort_id_mapping) * num_mappings; smmu = (struct acpi_iort_smmu_v3 *)node->node_data; + memset(smmu, '\0', sizeof(struct acpi_iort_smmu_v3)); smmu->base_address = base_address; smmu->flags = flags; |