If the machine doesn't support FBC, it will return -ENODEV from
i915_fbc_info, which we want to interpret as unsupported.
Reported-by: Marta Lofstedt<marta.lofst...@intel.com>
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Marta Lofstedt<marta.lofst...@intel.com>
---
tests/kms_fbcon_fbt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tests/kms_fbcon_fbt.c b/tests/kms_fbcon_fbt.c
index 51f11728..1b236f8b 100644
--- a/tests/kms_fbcon_fbt.c
+++ b/tests/kms_fbcon_fbt.c
@@ -87,6 +87,9 @@ static bool fbc_supported_on_chipset(int fd)
char buf[128];
igt_debugfs_read(fd, "i915_fbc_status", buf);
+ if (*buf == '\0') /* !HAS_FBC -> -ENODEV*/
+ return false;
+
return !strstr(buf, "FBC unsupported on this chipset\n");
}
--
2.16.1
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