Since we likely know all the old devices, an unknown device is most
likely a future device, so use -1u instead of 0 for its generation.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
lib/intel_device_info.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/intel_device_info.c b/lib/intel_device_info.c
index 21f7a9570..dfa43f490 100644
--- a/lib/intel_device_info.c
+++ b/lib/intel_device_info.c
@@ -447,11 +447,11 @@ out:
* Computes the Intel GFX generation for the given device id.
*
* Returns:
- * The GFX generation on successful lookup, 0 on failure.
+ * The GFX generation on successful lookup, -1u on failure.
*/
unsigned intel_gen(uint16_t devid)
{
- return ffs(intel_get_device_info(devid)->gen);
+ return ffs(intel_get_device_info(devid)->gen) ?: -1u;
}
/**
--
2.27.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
