[Intel-gfx] [PATCH igt 1/2] lib: Export kmsg()

[Chris Wilson]

Export the kmsg() function for use by tests to write into the kernel
message log, useful for tests to inline their progress with kernel error
messages.

Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
 lib/igt_core.c | 20 ++++++--------------
 lib/igt_core.h | 17 +++++++++++++++++
 2 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/lib/igt_core.c b/lib/igt_core.c
index 558a538d..c292343d 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -386,16 +386,7 @@ void igt_log_buffer_inspect(igt_buffer_log_handler_t 
check, void *data)
        pthread_mutex_unlock(&log_buffer_mutex);
 }
 
-__attribute__((format(printf, 1, 2)))
-static void kmsg(const char *format, ...)
-#define KERN_EMER      "<0>"
-#define KERN_ALERT     "<1>"
-#define KERN_CRIT      "<2>"
-#define KERN_ERR       "<3>"
-#define KERN_WARNING   "<4>"
-#define KERN_NOTICE    "<5>"
-#define KERN_INFO      "<6>"
-#define KERN_DEBUG     "<7>"
+void igt_kmsg(const char *format, ...)
 {
        va_list ap;
        FILE *file;
@@ -811,7 +802,7 @@ out:
 
        if (!list_subtests) {
                kick_fbcon(false);
-               kmsg(KERN_INFO "[IGT] %s: executing\n", command_str);
+               igt_kmsg(KMSG_INFO "%s: executing\n", command_str);
                print_version();
 
                sync();
@@ -938,7 +929,8 @@ bool __igt_run_subtest(const char *subtest_name)
                return false;
        }
 
-       kmsg(KERN_INFO "[IGT] %s: starting subtest %s\n", command_str, 
subtest_name);
+       igt_kmsg(KMSG_INFO "%s: starting subtest %s\n",
+                command_str, subtest_name);
        igt_debug("Starting subtest: %s\n", subtest_name);
 
        _igt_log_buffer_reset();
@@ -1447,8 +1439,8 @@ void igt_exit(void)
        }
 
        if (command_str)
-               kmsg(KERN_INFO "[IGT] %s: exiting, ret=%d\n",
-                    command_str, igt_exitcode);
+               igt_kmsg(KMSG_INFO "%s: exiting, ret=%d\n",
+                        command_str, igt_exitcode);
        igt_debug("Exiting with status code %d\n", igt_exitcode);
 
        for (int c = 0; c < num_test_children; c++)
diff --git a/lib/igt_core.h b/lib/igt_core.h
index f8543d65..7af2b4c1 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -932,4 +932,21 @@ int igt_system_quiet(const char *command);
                free(buf); \
        } while (0)
 
+/**
+ * igt_kmsg:
+ * @format: printf-style format string with optional args
+ *
+ * Writes a message into the kernel log file (/dev/kmsg).
+ */
+__attribute__((format(printf, 1, 2)))
+void igt_kmsg(const char *format, ...);
+#define KMSG_EMER      "<0>[IGT] "
+#define KMSG_ALERT     "<1>[IGT] "
+#define KMSG_CRIT      "<2>[IGT] "
+#define KMSG_ERR       "<3>[IGT] "
+#define KMSG_WARNING   "<4>[IGT] "
+#define KMSG_NOTICE    "<5>[IGT] "
+#define KMSG_INFO      "<6>[IGT] "
+#define KMSG_DEBUG     "<7>[IGT] "
+
 #endif /* IGT_CORE_H */
-- 
2.16.1

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