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authorPhilip Prindeville <philipp@redfish-solutions.com>2023-04-12 10:18:20 -0600
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-07-10 15:21:03 +0200
commit7c94858ec17dae9071fa3bdf6b005967b9f146f4 (patch)
treee3f0a485369ebcb3f9ec1b30d76818023cf8e473 /drivers/acpi/acpica
parent06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff)
ACPICA: Fix GCC 12 dangling-pointer warning
ACPICA commit aea0a5cfce262ce2ab16fd96d87c12cf5e756380 We're storing a persistent pointer to an ephemeral local variable which technically is a dangling pointer and the compiler is correct. However, since we never indirect the pointer, this is a safe operation and we can suppress the warning. Also, some C run-times (like MUSL) aren't including <stdint.h> indirectly so we must include it explicitly or we won't have the type definition for uintptr_t. Fixes issue #867. Link: https://github.com/acpica/acpica/commit/aea0a5cf Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/utdebug.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 1bbba8585fa6..c5f6c85a3a09 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -37,7 +37,12 @@ void acpi_ut_init_stack_ptr_trace(void)
{
acpi_size current_sp;
+#pragma GCC diagnostic push
+#if defined(__GNUC__) && __GNUC__ >= 12
+#pragma GCC diagnostic ignored "-Wdangling-pointer="
+#endif
acpi_gbl_entry_stack_pointer = &current_sp;
+#pragma GCC diagnostic pop
}
/*******************************************************************************