[igt-dev] [PATCH i-g-t] lib/igt_eld: improve logging

[Simon Ser <simon.ser@intel.com>]

- Print a log line when a monitor isn't present
- Print a log line when a non-IGT ELD is parsed (rejigger the code flow to make
  skips uniform)
- Print the ELD path on read failure, just in case

Signed-off-by: Simon Ser <simon.ser@intel.com>
---
 lib/igt_eld.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/igt_eld.c b/lib/igt_eld.c
index 1bb294e3fb2a..8b602796b23c 100644
--- a/lib/igt_eld.c
+++ b/lib/igt_eld.c
@@ -191,12 +191,14 @@ static bool eld_parse_entry(const char *path, struct eld_entry *eld)
 	}

 	if (ferror(f) != 0) {
-		igt_debug("Failed to read ELD file: %d\n", ferror(f));
+		igt_debug("Failed to read ELD file %s: %d\n", path, ferror(f));
 		return false;
 	}

 	fclose(f);

+	if (!monitor_present)
+		igt_debug("Monitor not present in ELD: %s\n", path);
 	return monitor_present;
 }

@@ -233,10 +235,15 @@ bool eld_has_igt(void)
 				continue;
 			}

-			if (strcmp(eld.monitor_name, "IGT") == 0) {
-				closedir(dir);
-				return true;
+			if (strcmp(eld.monitor_name, "IGT") != 0) {
+				igt_debug("Skipping non-IGT ELD: %s "
+					  "(monitor name: %s)\n",
+					  path, eld.monitor_name);
+				continue;
 			}
+
+			closedir(dir);
+			return true;
 		}
 		closedir(dir);
 	}
--
2.21.0

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