drm/format-helper: Use KUNIT_EXPECT_MEMEQ macro

Commit b8a926be ("kunit: Introduce KUNIT_EXPECT_MEMEQ and
KUNIT_EXPECT_MEMNEQ macros") introduced a new macro to compare blocks of
memory and, if the test fails, print the result in a human-friendly
format. Therefore, use KUNIT_EXPECT_MEMEQ to compare memory blocks in
replacement of the KUNIT_EXPECT_EQ macro.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130125554.363481-1-mairacanal@riseup.net

drivers/gpu/drm/tests/drm_format_helper_test.c

@@ -597,7 +597,7 @@ static void drm_test_fb_xrgb8888_to_xrgb1555(struct kunit *test)
 
 	drm_fb_xrgb8888_to_xrgb1555(&dst, &result->dst_pitch, &src, &fb, &params->clip);
 	buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16));
-	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
 }
 
 static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test)
@@ -628,7 +628,7 @@ static void drm_test_fb_xrgb8888_to_argb1555(struct kunit *test)
 
 	drm_fb_xrgb8888_to_argb1555(&dst, &result->dst_pitch, &src, &fb, &params->clip);
 	buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16));
-	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
 }
 
 static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test)
@@ -659,7 +659,7 @@ static void drm_test_fb_xrgb8888_to_rgba5551(struct kunit *test)
 
 	drm_fb_xrgb8888_to_rgba5551(&dst, &result->dst_pitch, &src, &fb, &params->clip);
 	buf = le16buf_to_cpu(test, (__force const __le16 *)buf, dst_size / sizeof(__le16));
-	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
 }
 
 static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test)
@@ -724,7 +724,7 @@ static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test)
 
 	drm_fb_xrgb8888_to_argb8888(&dst, &result->dst_pitch, &src, &fb, &params->clip);
 	buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32));
-	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
 }
 
 static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
@@ -786,7 +786,7 @@ static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test)
 
 	drm_fb_xrgb8888_to_argb2101010(&dst, &result->dst_pitch, &src, &fb, &params->clip);
 	buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32));
-	KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
 }
 
 static struct kunit_case drm_format_helper_test_cases[] = {