lib/igt_kmod: Adopt igt_kselftests()

Extract the automagic kselftest runner from tests/drm_mm.c to the new
lib/igt_kmod.c

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 1 insertions, 96 deletions

diff --git a/tests/drm_mm.c b/tests/drm_mm.c
index b95fcb34..dbd0cc28 100644
--- a/tests/drm_mm.c
+++ b/tests/drm_mm.c
@@ -22,105 +22,10 @@
  */
 
 #include "igt.h"
-#include <libkmod.h>
+#include "igt_kmod.h"
 
 IGT_TEST_DESCRIPTION("Basic sanity check of DRM's range manager (struct drm_mm)");
 
-static void squelch(void *data, int priority,
-		    const char *file, int line, const char *fn,
-		    const char *format, va_list args)
-{
-}
-
-static void kmsg_dump(int fd)
-{
-	FILE *file;
-
-	file = NULL;
-	if (fd != -1)
-		file = fdopen(fd, "r");
-	if (file) {
-		size_t len = 0;
-		char *line = NULL;
-
-		while (getline(&line, &len, file) != -1) {
-			char *start = strchr(line, ':');
-			if (start)
-				igt_warn("%s", start + 2);
-		}
-
-		free(line);
-		fclose(file);
-	} else {
-		igt_warn("Unable to retrieve kernel log (from /dev/kmsg)\n");
-	}
-}
-
-static void igt_kselftests(const char *module_name)
-{
-	struct kmod_ctx *ctx;
-	struct kmod_module *kmod;
-	struct kmod_list *d, *pre;
-	int err, kmsg = -1;
-
-	ctx = kmod_new(NULL, NULL);
-	igt_assert(ctx != NULL);
-
-	kmod_set_log_fn(ctx, squelch, NULL);
-
-	igt_require(kmod_module_new_from_name(ctx, module_name, &kmod) == 0);
-	igt_fixture {
-		err = kmod_module_remove_module(kmod, KMOD_REMOVE_FORCE);
-		igt_require(err == 0 || err == -ENOENT);
-
-		kmsg = open("/dev/kmsg", O_RDONLY | O_NONBLOCK);
-	}
-
-	pre = NULL;
-	if (kmod_module_get_info(kmod, &pre)) {
-		kmod_list_foreach(d, pre) {
-			const char *key, *val;
-			char *option, *colon;
-
-			key = kmod_module_info_get_key(d);
-			if (strcmp(key, "parmtype"))
-				continue;
-
-			val = kmod_module_info_get_value(d);
-			if (!val || strncmp(val, "subtest__", 9))
-				continue;
-
-			option = strdup(val);
-			colon = strchr(option, ':');
-			*colon = '\0';
-
-			igt_subtest_f("%s", option + 9) {
-				lseek(kmsg, 0, SEEK_END);
-				strcpy(colon, "=1");
-
-				err = 0;
-				if (kmod_module_insert_module(kmod, 0, option))
-					err = -errno;
-				kmod_module_remove_module(kmod, 0);
-				if (err)
-					kmsg_dump(kmsg);
-
-				errno = 0;
-				igt_assert_f(err == 0,
-					     "kselftest \"%s %s\" failed: %s [%d]\n",
-					     module_name, option,
-					     strerror(-err), -err);
-			}
-		}
-		kmod_module_info_free_list(pre);
-	}
-
-	igt_fixture {
-		close(kmsg);
-		kmod_module_remove_module(kmod, KMOD_REMOVE_FORCE);
-	}
-}
-
 igt_main
 {
 	igt_kselftests("test-drm_mm");