diff mbox series

[1/2] selftests/dmabuf-heap: conform test to TAP format output

Message ID 20240226080003.4094089-1-usama.anjum@collabora.com (mailing list archive)
State New
Headers show
Series [1/2] selftests/dmabuf-heap: conform test to TAP format output | expand

Commit Message

Muhammad Usama Anjum Feb. 26, 2024, 7:59 a.m. UTC
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.

Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
---
 .../selftests/dmabuf-heaps/dmabuf-heap.c      | 194 +++++++-----------
 1 file changed, 77 insertions(+), 117 deletions(-)

Comments

T.J. Mercier Feb. 27, 2024, 1:52 a.m. UTC | #1
On Sun, Feb 25, 2024 at 11:59 PM Muhammad Usama Anjum
<usama.anjum@collabora.com> wrote:
>
> Conform the layout, informational and status messages to TAP. No
> functional change is intended other than the layout of output messages.
>
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
> ---
>  .../selftests/dmabuf-heaps/dmabuf-heap.c      | 194 +++++++-----------
>  1 file changed, 77 insertions(+), 117 deletions(-)
>
> diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
> index 890a8236a8ba7..6e538e346cb8f 100644
> --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
> +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
> @@ -15,6 +15,7 @@
>  #include <linux/dma-buf.h>
>  #include <linux/dma-heap.h>
>  #include <drm/drm.h>
> +#include "../kselftest.h"
>
>  #define DEVPATH "/dev/dma_heap"
>
> @@ -90,14 +91,13 @@ static int dmabuf_heap_open(char *name)
>         char buf[256];
>
>         ret = snprintf(buf, 256, "%s/%s", DEVPATH, name);
> -       if (ret < 0) {
> -               printf("snprintf failed!\n");
> -               return ret;
> -       }
> +       if (ret < 0)
> +               ksft_exit_fail_msg("snprintf failed!\n");
>
>         fd = open(buf, O_RDWR);
>         if (fd < 0)
> -               printf("open %s failed!\n", buf);
> +               ksft_exit_fail_msg("open %s failed: %s\n", buf, strerror(errno));
> +
>         return fd;
>  }
>
> @@ -140,7 +140,7 @@ static int dmabuf_sync(int fd, int start_stop)
>
>  #define ONE_MEG (1024 * 1024)
>
> -static int test_alloc_and_import(char *heap_name)
> +static void test_alloc_and_import(char *heap_name)
>  {
>         int heap_fd = -1, dmabuf_fd = -1, importer_fd = -1;
>         uint32_t handle = 0;
> @@ -148,16 +148,12 @@ static int test_alloc_and_import(char *heap_name)
>         int ret;
>
>         heap_fd = dmabuf_heap_open(heap_name);
> -       if (heap_fd < 0)
> -               return -1;
>
> -       printf("  Testing allocation and importing:  ");
> +       ksft_print_msg("Testing allocation and importing:\n");
>         ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
> -       if (ret) {
> -               printf("FAIL (Allocation Failed!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> +       if (ret)
> +               ksft_exit_fail_msg("FAIL (Allocation Failed!)\n");
> +
>         /* mmap and write a simple pattern */
>         p = mmap(NULL,
>                  ONE_MEG,
> @@ -166,7 +162,7 @@ static int test_alloc_and_import(char *heap_name)
>                  dmabuf_fd,
>                  0);
>         if (p == MAP_FAILED) {
> -               printf("FAIL (mmap() failed)\n");
> +               ksft_print_msg("FAIL (mmap() failed)\n");
>                 ret = -1;
>                 goto out;
>         }

I think you should just ksft_exit_fail_msg these too and get rid of
out / not bother with manual cleanup if we're going to exit anyway.

> @@ -179,31 +175,28 @@ static int test_alloc_and_import(char *heap_name)
>         importer_fd = open_vgem();
>         if (importer_fd < 0) {
>                 ret = importer_fd;
> -               printf("(Could not open vgem - skipping):  ");
> +               ksft_test_result_skip("Could not open vgem\n");
>         } else {
>                 ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle);
> -               if (ret < 0) {
> -                       printf("FAIL (Failed to import buffer)\n");
> -                       goto out;
> -               }
> +               ksft_test_result(ret >= 0, "Import buffer\n");
>         }
>
>         ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START);
>         if (ret < 0) {
> -               printf("FAIL (DMA_BUF_SYNC_START failed!)\n");
> +               ksft_print_msg("FAIL (DMA_BUF_SYNC_START failed!)\n");
>                 goto out;
>         }
>
>         memset(p, 0xff, ONE_MEG);
>         ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END);
>         if (ret < 0) {
> -               printf("FAIL (DMA_BUF_SYNC_END failed!)\n");
> +               ksft_print_msg("FAIL (DMA_BUF_SYNC_END failed!)\n");
>                 goto out;
>         }
>
>         close_handle(importer_fd, handle);
> -       ret = 0;
> -       printf(" OK\n");
> +       ksft_test_result_pass("%s\n", __func__);
> +       return;
>  out:
>         if (p)
>                 munmap(p, ONE_MEG);
> @@ -214,32 +207,29 @@ static int test_alloc_and_import(char *heap_name)
>         if (heap_fd >= 0)
>                 close(heap_fd);
>
> -       return ret;
> +       ksft_test_result_fail("%s\n", __func__);
>  }
>
> -static int test_alloc_zeroed(char *heap_name, size_t size)
> +static void test_alloc_zeroed(char *heap_name, size_t size)
>  {
>         int heap_fd = -1, dmabuf_fd[32];
>         int i, j, ret;
>         void *p = NULL;
>         char *c;
>
> -       printf("  Testing alloced %ldk buffers are zeroed:  ", size / 1024);
> +       ksft_print_msg("Testing alloced %ldk buffers are zeroed:\n", size / 1024);
>         heap_fd = dmabuf_heap_open(heap_name);
> -       if (heap_fd < 0)
> -               return -1;
>
>         /* Allocate and fill a bunch of buffers */
>         for (i = 0; i < 32; i++) {
>                 ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
> -               if (ret < 0) {
> -                       printf("FAIL (Allocation (%i) failed)\n", i);
> -                       goto out;
> -               }
> +               if (ret)
> +                       ksft_exit_fail_msg("FAIL (Allocation (%i) failed)\n", i);
> +
>                 /* mmap and fill with simple pattern */
>                 p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
>                 if (p == MAP_FAILED) {
> -                       printf("FAIL (mmap() failed!)\n");
> +                       ksft_print_msg("FAIL (mmap() failed!)\n");
>                         ret = -1;
>                         goto out;
>                 }
> @@ -255,15 +245,13 @@ static int test_alloc_zeroed(char *heap_name, size_t size)
>         /* Allocate and validate all buffers are zeroed */
>         for (i = 0; i < 32; i++) {
>                 ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
> -               if (ret < 0) {
> -                       printf("FAIL (Allocation (%i) failed)\n", i);
> -                       goto out;
> -               }
> +               if (ret < 0)
> +                       ksft_exit_fail_msg("FAIL (Allocation (%i) failed)\n", i);
>
>                 /* mmap and validate everything is zero */
>                 p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
>                 if (p == MAP_FAILED) {
> -                       printf("FAIL (mmap() failed!)\n");
> +                       ksft_print_msg("FAIL (mmap() failed!)\n");
>                         ret = -1;
>                         goto out;
>                 }
> @@ -271,7 +259,7 @@ static int test_alloc_zeroed(char *heap_name, size_t size)
>                 c = (char *)p;
>                 for (j = 0; j < size; j++) {
>                         if (c[j] != 0) {
> -                               printf("FAIL (Allocated buffer not zeroed @ %i)\n", j);
> +                               ksft_print_msg("FAIL (Allocated buffer not zeroed @ %i)\n", j);
>                                 break;
>                         }
>                 }
> @@ -283,8 +271,8 @@ static int test_alloc_zeroed(char *heap_name, size_t size)
>                 close(dmabuf_fd[i]);
>
>         close(heap_fd);
> -       printf("OK\n");
> -       return 0;
> +       ksft_test_result_pass("%s\n", __func__);
> +       return;
>
>  out:
>         while (i > 0) {
> @@ -292,7 +280,7 @@ static int test_alloc_zeroed(char *heap_name, size_t size)
>                 i--;
>         }
>         close(heap_fd);
> -       return ret;
> +       ksft_test_result_fail("%s\n", __func__);
>  }
>
>  /* Test the ioctl version compatibility w/ a smaller structure then expected */
> @@ -360,126 +348,98 @@ static int dmabuf_heap_alloc_newer(int fd, size_t len, unsigned int flags,
>         return ret;
>  }
>
> -static int test_alloc_compat(char *heap_name)
> +static void test_alloc_compat(char *heap_name)
>  {
> -       int heap_fd = -1, dmabuf_fd = -1;
> -       int ret;
> +       int ret, heap_fd = -1, dmabuf_fd = -1;
>
>         heap_fd = dmabuf_heap_open(heap_name);
> -       if (heap_fd < 0)
> -               return -1;
>
> -       printf("  Testing (theoretical)older alloc compat:  ");
> +       ksft_print_msg("Testing (theoretical)older alloc compat:\n");
>         ret = dmabuf_heap_alloc_older(heap_fd, ONE_MEG, 0, &dmabuf_fd);
> -       if (ret) {
> -               printf("FAIL (Older compat allocation failed!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> -       close(dmabuf_fd);
> -       printf("OK\n");
> +       if (dmabuf_fd >= 0)
> +               close(dmabuf_fd);
> +       ksft_test_result(!ret, "dmabuf_heap_alloc_older\n");
>
> -       printf("  Testing (theoretical)newer alloc compat:  ");
> +       ksft_print_msg("Testing (theoretical)newer alloc compat:\n");
>         ret = dmabuf_heap_alloc_newer(heap_fd, ONE_MEG, 0, &dmabuf_fd);
> -       if (ret) {
> -               printf("FAIL (Newer compat allocation failed!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> -       printf("OK\n");
> -out:
>         if (dmabuf_fd >= 0)
>                 close(dmabuf_fd);
> -       if (heap_fd >= 0)
> -               close(heap_fd);
> +       ksft_test_result(!ret, "dmabuf_heap_alloc_newer\n");
>
> -       return ret;
> +       close(heap_fd);
>  }
>
> -static int test_alloc_errors(char *heap_name)
> +static void test_alloc_errors(char *heap_name)
>  {
>         int heap_fd = -1, dmabuf_fd = -1;
>         int ret;
>
>         heap_fd = dmabuf_heap_open(heap_name);
> -       if (heap_fd < 0)
> -               return -1;
>
> -       printf("  Testing expected error cases:  ");
> +       ksft_print_msg("Testing expected error cases:\n");
>         ret = dmabuf_heap_alloc(0, ONE_MEG, 0x111111, &dmabuf_fd);
> -       if (!ret) {
> -               printf("FAIL (Did not see expected error (invalid fd)!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> +       ksft_test_result(ret, "Error expected on invalid fd\n");
>
>         ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0x111111, &dmabuf_fd);
> -       if (!ret) {
> -               printf("FAIL (Did not see expected error (invalid heap flags)!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> +       ksft_test_result(ret, "Error expected on invalid heap flags\n");
>
>         ret = dmabuf_heap_alloc_fdflags(heap_fd, ONE_MEG,
>                                         ~(O_RDWR | O_CLOEXEC), 0, &dmabuf_fd);
> -       if (!ret) {
> -               printf("FAIL (Did not see expected error (invalid fd flags)!)\n");
> -               ret = -1;
> -               goto out;
> -       }
> +       ksft_test_result(ret, "Error expected on invalid heap flags\n");
>
> -       printf("OK\n");
> -       ret = 0;
> -out:
>         if (dmabuf_fd >= 0)
>                 close(dmabuf_fd);
>         if (heap_fd >= 0)
>                 close(heap_fd);
> +}
>
> -       return ret;
> +static int numer_of_heaps(void)
> +{
> +       DIR *d = opendir(DEVPATH);
> +       struct dirent *dir;
> +       int heaps = 0;
> +
> +       while ((dir = readdir(d))) {
> +               if (!strncmp(dir->d_name, ".", 2))
> +                       continue;
> +               if (!strncmp(dir->d_name, "..", 3))
> +                       continue;
> +               heaps++;
> +       }
> +
> +       return heaps;
>  }
>
>  int main(void)
>  {
> -       DIR *d;
>         struct dirent *dir;
> -       int ret = -1;
> +       DIR *d;
> +
> +       ksft_print_header();
>
>         d = opendir(DEVPATH);
>         if (!d) {
> -               printf("No %s directory?\n", DEVPATH);
> -               return -1;
> +               ksft_print_msg("No %s directory?\n", DEVPATH);
> +               return KSFT_SKIP;
>         }
>
> -       while ((dir = readdir(d)) != NULL) {
> +       ksft_set_plan(9 * numer_of_heaps());
> +
> +       while ((dir = readdir(d))) {
>                 if (!strncmp(dir->d_name, ".", 2))
>                         continue;
>                 if (!strncmp(dir->d_name, "..", 3))
>                         continue;
>
> -               printf("Testing heap: %s\n", dir->d_name);
> -               printf("=======================================\n");
> -               ret = test_alloc_and_import(dir->d_name);
> -               if (ret)
> -                       break;
> -
> -               ret = test_alloc_zeroed(dir->d_name, 4 * 1024);
> -               if (ret)
> -                       break;
> -
> -               ret = test_alloc_zeroed(dir->d_name, ONE_MEG);
> -               if (ret)
> -                       break;
> -
> -               ret = test_alloc_compat(dir->d_name);
> -               if (ret)
> -                       break;
> -
> -               ret = test_alloc_errors(dir->d_name);
> -               if (ret)
> -                       break;
> +               ksft_print_msg("Testing heap: %s\n", dir->d_name);
> +               ksft_print_msg("=======================================\n");
> +               test_alloc_and_import(dir->d_name);
> +               test_alloc_zeroed(dir->d_name, 4 * 1024);
> +               test_alloc_zeroed(dir->d_name, ONE_MEG);
> +               test_alloc_compat(dir->d_name);
> +               test_alloc_errors(dir->d_name);
>         }
>         closedir(d);
>
> -       return ret;
> +       ksft_finished();
>  }
> --
> 2.42.0
>
>
Muhammad Usama Anjum Feb. 27, 2024, 11:52 a.m. UTC | #2
On 2/27/24 6:52 AM, T.J. Mercier wrote:
> On Sun, Feb 25, 2024 at 11:59 PM Muhammad Usama Anjum
> <usama.anjum@collabora.com> wrote:
>>
>> Conform the layout, informational and status messages to TAP. No
>> functional change is intended other than the layout of output messages.
>>
>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
>> ---
>>  .../selftests/dmabuf-heaps/dmabuf-heap.c      | 194 +++++++-----------
>>  1 file changed, 77 insertions(+), 117 deletions(-)
>>
>> diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
>> index 890a8236a8ba7..6e538e346cb8f 100644
>> --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
>> +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
>> @@ -15,6 +15,7 @@
>>  #include <linux/dma-buf.h>
>>  #include <linux/dma-heap.h>
>>  #include <drm/drm.h>
>> +#include "../kselftest.h"
>>
>>  #define DEVPATH "/dev/dma_heap"
>>
>> @@ -90,14 +91,13 @@ static int dmabuf_heap_open(char *name)
>>         char buf[256];
>>
>>         ret = snprintf(buf, 256, "%s/%s", DEVPATH, name);
>> -       if (ret < 0) {
>> -               printf("snprintf failed!\n");
>> -               return ret;
>> -       }
>> +       if (ret < 0)
>> +               ksft_exit_fail_msg("snprintf failed!\n");
>>
>>         fd = open(buf, O_RDWR);
>>         if (fd < 0)
>> -               printf("open %s failed!\n", buf);
>> +               ksft_exit_fail_msg("open %s failed: %s\n", buf, strerror(errno));
>> +
>>         return fd;
>>  }
>>
>> @@ -140,7 +140,7 @@ static int dmabuf_sync(int fd, int start_stop)
>>
>>  #define ONE_MEG (1024 * 1024)
>>
>> -static int test_alloc_and_import(char *heap_name)
>> +static void test_alloc_and_import(char *heap_name)
>>  {
>>         int heap_fd = -1, dmabuf_fd = -1, importer_fd = -1;
>>         uint32_t handle = 0;
>> @@ -148,16 +148,12 @@ static int test_alloc_and_import(char *heap_name)
>>         int ret;
>>
>>         heap_fd = dmabuf_heap_open(heap_name);
>> -       if (heap_fd < 0)
>> -               return -1;
>>
>> -       printf("  Testing allocation and importing:  ");
>> +       ksft_print_msg("Testing allocation and importing:\n");
>>         ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
>> -       if (ret) {
>> -               printf("FAIL (Allocation Failed!)\n");
>> -               ret = -1;
>> -               goto out;
>> -       }
>> +       if (ret)
>> +               ksft_exit_fail_msg("FAIL (Allocation Failed!)\n");
>> +
>>         /* mmap and write a simple pattern */
>>         p = mmap(NULL,
>>                  ONE_MEG,
>> @@ -166,7 +162,7 @@ static int test_alloc_and_import(char *heap_name)
>>                  dmabuf_fd,
>>                  0);
>>         if (p == MAP_FAILED) {
>> -               printf("FAIL (mmap() failed)\n");
>> +               ksft_print_msg("FAIL (mmap() failed)\n");
>>                 ret = -1;
>>                 goto out;
>>         }
> 
> I think you should just ksft_exit_fail_msg these too and get rid of
> out / not bother with manual cleanup if we're going to exit anyway.
Not sure how I missed this. I'll send a v2.
diff mbox series

Patch

diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
index 890a8236a8ba7..6e538e346cb8f 100644
--- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
+++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
@@ -15,6 +15,7 @@ 
 #include <linux/dma-buf.h>
 #include <linux/dma-heap.h>
 #include <drm/drm.h>
+#include "../kselftest.h"
 
 #define DEVPATH "/dev/dma_heap"
 
@@ -90,14 +91,13 @@  static int dmabuf_heap_open(char *name)
 	char buf[256];
 
 	ret = snprintf(buf, 256, "%s/%s", DEVPATH, name);
-	if (ret < 0) {
-		printf("snprintf failed!\n");
-		return ret;
-	}
+	if (ret < 0)
+		ksft_exit_fail_msg("snprintf failed!\n");
 
 	fd = open(buf, O_RDWR);
 	if (fd < 0)
-		printf("open %s failed!\n", buf);
+		ksft_exit_fail_msg("open %s failed: %s\n", buf, strerror(errno));
+
 	return fd;
 }
 
@@ -140,7 +140,7 @@  static int dmabuf_sync(int fd, int start_stop)
 
 #define ONE_MEG (1024 * 1024)
 
-static int test_alloc_and_import(char *heap_name)
+static void test_alloc_and_import(char *heap_name)
 {
 	int heap_fd = -1, dmabuf_fd = -1, importer_fd = -1;
 	uint32_t handle = 0;
@@ -148,16 +148,12 @@  static int test_alloc_and_import(char *heap_name)
 	int ret;
 
 	heap_fd = dmabuf_heap_open(heap_name);
-	if (heap_fd < 0)
-		return -1;
 
-	printf("  Testing allocation and importing:  ");
+	ksft_print_msg("Testing allocation and importing:\n");
 	ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
-	if (ret) {
-		printf("FAIL (Allocation Failed!)\n");
-		ret = -1;
-		goto out;
-	}
+	if (ret)
+		ksft_exit_fail_msg("FAIL (Allocation Failed!)\n");
+
 	/* mmap and write a simple pattern */
 	p = mmap(NULL,
 		 ONE_MEG,
@@ -166,7 +162,7 @@  static int test_alloc_and_import(char *heap_name)
 		 dmabuf_fd,
 		 0);
 	if (p == MAP_FAILED) {
-		printf("FAIL (mmap() failed)\n");
+		ksft_print_msg("FAIL (mmap() failed)\n");
 		ret = -1;
 		goto out;
 	}
@@ -179,31 +175,28 @@  static int test_alloc_and_import(char *heap_name)
 	importer_fd = open_vgem();
 	if (importer_fd < 0) {
 		ret = importer_fd;
-		printf("(Could not open vgem - skipping):  ");
+		ksft_test_result_skip("Could not open vgem\n");
 	} else {
 		ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle);
-		if (ret < 0) {
-			printf("FAIL (Failed to import buffer)\n");
-			goto out;
-		}
+		ksft_test_result(ret >= 0, "Import buffer\n");
 	}
 
 	ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START);
 	if (ret < 0) {
-		printf("FAIL (DMA_BUF_SYNC_START failed!)\n");
+		ksft_print_msg("FAIL (DMA_BUF_SYNC_START failed!)\n");
 		goto out;
 	}
 
 	memset(p, 0xff, ONE_MEG);
 	ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END);
 	if (ret < 0) {
-		printf("FAIL (DMA_BUF_SYNC_END failed!)\n");
+		ksft_print_msg("FAIL (DMA_BUF_SYNC_END failed!)\n");
 		goto out;
 	}
 
 	close_handle(importer_fd, handle);
-	ret = 0;
-	printf(" OK\n");
+	ksft_test_result_pass("%s\n", __func__);
+	return;
 out:
 	if (p)
 		munmap(p, ONE_MEG);
@@ -214,32 +207,29 @@  static int test_alloc_and_import(char *heap_name)
 	if (heap_fd >= 0)
 		close(heap_fd);
 
-	return ret;
+	ksft_test_result_fail("%s\n", __func__);
 }
 
-static int test_alloc_zeroed(char *heap_name, size_t size)
+static void test_alloc_zeroed(char *heap_name, size_t size)
 {
 	int heap_fd = -1, dmabuf_fd[32];
 	int i, j, ret;
 	void *p = NULL;
 	char *c;
 
-	printf("  Testing alloced %ldk buffers are zeroed:  ", size / 1024);
+	ksft_print_msg("Testing alloced %ldk buffers are zeroed:\n", size / 1024);
 	heap_fd = dmabuf_heap_open(heap_name);
-	if (heap_fd < 0)
-		return -1;
 
 	/* Allocate and fill a bunch of buffers */
 	for (i = 0; i < 32; i++) {
 		ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
-		if (ret < 0) {
-			printf("FAIL (Allocation (%i) failed)\n", i);
-			goto out;
-		}
+		if (ret)
+			ksft_exit_fail_msg("FAIL (Allocation (%i) failed)\n", i);
+
 		/* mmap and fill with simple pattern */
 		p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
 		if (p == MAP_FAILED) {
-			printf("FAIL (mmap() failed!)\n");
+			ksft_print_msg("FAIL (mmap() failed!)\n");
 			ret = -1;
 			goto out;
 		}
@@ -255,15 +245,13 @@  static int test_alloc_zeroed(char *heap_name, size_t size)
 	/* Allocate and validate all buffers are zeroed */
 	for (i = 0; i < 32; i++) {
 		ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
-		if (ret < 0) {
-			printf("FAIL (Allocation (%i) failed)\n", i);
-			goto out;
-		}
+		if (ret < 0)
+			ksft_exit_fail_msg("FAIL (Allocation (%i) failed)\n", i);
 
 		/* mmap and validate everything is zero */
 		p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
 		if (p == MAP_FAILED) {
-			printf("FAIL (mmap() failed!)\n");
+			ksft_print_msg("FAIL (mmap() failed!)\n");
 			ret = -1;
 			goto out;
 		}
@@ -271,7 +259,7 @@  static int test_alloc_zeroed(char *heap_name, size_t size)
 		c = (char *)p;
 		for (j = 0; j < size; j++) {
 			if (c[j] != 0) {
-				printf("FAIL (Allocated buffer not zeroed @ %i)\n", j);
+				ksft_print_msg("FAIL (Allocated buffer not zeroed @ %i)\n", j);
 				break;
 			}
 		}
@@ -283,8 +271,8 @@  static int test_alloc_zeroed(char *heap_name, size_t size)
 		close(dmabuf_fd[i]);
 
 	close(heap_fd);
-	printf("OK\n");
-	return 0;
+	ksft_test_result_pass("%s\n", __func__);
+	return;
 
 out:
 	while (i > 0) {
@@ -292,7 +280,7 @@  static int test_alloc_zeroed(char *heap_name, size_t size)
 		i--;
 	}
 	close(heap_fd);
-	return ret;
+	ksft_test_result_fail("%s\n", __func__);
 }
 
 /* Test the ioctl version compatibility w/ a smaller structure then expected */
@@ -360,126 +348,98 @@  static int dmabuf_heap_alloc_newer(int fd, size_t len, unsigned int flags,
 	return ret;
 }
 
-static int test_alloc_compat(char *heap_name)
+static void test_alloc_compat(char *heap_name)
 {
-	int heap_fd = -1, dmabuf_fd = -1;
-	int ret;
+	int ret, heap_fd = -1, dmabuf_fd = -1;
 
 	heap_fd = dmabuf_heap_open(heap_name);
-	if (heap_fd < 0)
-		return -1;
 
-	printf("  Testing (theoretical)older alloc compat:  ");
+	ksft_print_msg("Testing (theoretical)older alloc compat:\n");
 	ret = dmabuf_heap_alloc_older(heap_fd, ONE_MEG, 0, &dmabuf_fd);
-	if (ret) {
-		printf("FAIL (Older compat allocation failed!)\n");
-		ret = -1;
-		goto out;
-	}
-	close(dmabuf_fd);
-	printf("OK\n");
+	if (dmabuf_fd >= 0)
+		close(dmabuf_fd);
+	ksft_test_result(!ret, "dmabuf_heap_alloc_older\n");
 
-	printf("  Testing (theoretical)newer alloc compat:  ");
+	ksft_print_msg("Testing (theoretical)newer alloc compat:\n");
 	ret = dmabuf_heap_alloc_newer(heap_fd, ONE_MEG, 0, &dmabuf_fd);
-	if (ret) {
-		printf("FAIL (Newer compat allocation failed!)\n");
-		ret = -1;
-		goto out;
-	}
-	printf("OK\n");
-out:
 	if (dmabuf_fd >= 0)
 		close(dmabuf_fd);
-	if (heap_fd >= 0)
-		close(heap_fd);
+	ksft_test_result(!ret, "dmabuf_heap_alloc_newer\n");
 
-	return ret;
+	close(heap_fd);
 }
 
-static int test_alloc_errors(char *heap_name)
+static void test_alloc_errors(char *heap_name)
 {
 	int heap_fd = -1, dmabuf_fd = -1;
 	int ret;
 
 	heap_fd = dmabuf_heap_open(heap_name);
-	if (heap_fd < 0)
-		return -1;
 
-	printf("  Testing expected error cases:  ");
+	ksft_print_msg("Testing expected error cases:\n");
 	ret = dmabuf_heap_alloc(0, ONE_MEG, 0x111111, &dmabuf_fd);
-	if (!ret) {
-		printf("FAIL (Did not see expected error (invalid fd)!)\n");
-		ret = -1;
-		goto out;
-	}
+	ksft_test_result(ret, "Error expected on invalid fd\n");
 
 	ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0x111111, &dmabuf_fd);
-	if (!ret) {
-		printf("FAIL (Did not see expected error (invalid heap flags)!)\n");
-		ret = -1;
-		goto out;
-	}
+	ksft_test_result(ret, "Error expected on invalid heap flags\n");
 
 	ret = dmabuf_heap_alloc_fdflags(heap_fd, ONE_MEG,
 					~(O_RDWR | O_CLOEXEC), 0, &dmabuf_fd);
-	if (!ret) {
-		printf("FAIL (Did not see expected error (invalid fd flags)!)\n");
-		ret = -1;
-		goto out;
-	}
+	ksft_test_result(ret, "Error expected on invalid heap flags\n");
 
-	printf("OK\n");
-	ret = 0;
-out:
 	if (dmabuf_fd >= 0)
 		close(dmabuf_fd);
 	if (heap_fd >= 0)
 		close(heap_fd);
+}
 
-	return ret;
+static int numer_of_heaps(void)
+{
+	DIR *d = opendir(DEVPATH);
+	struct dirent *dir;
+	int heaps = 0;
+
+	while ((dir = readdir(d))) {
+		if (!strncmp(dir->d_name, ".", 2))
+			continue;
+		if (!strncmp(dir->d_name, "..", 3))
+			continue;
+		heaps++;
+	}
+
+	return heaps;
 }
 
 int main(void)
 {
-	DIR *d;
 	struct dirent *dir;
-	int ret = -1;
+	DIR *d;
+
+	ksft_print_header();
 
 	d = opendir(DEVPATH);
 	if (!d) {
-		printf("No %s directory?\n", DEVPATH);
-		return -1;
+		ksft_print_msg("No %s directory?\n", DEVPATH);
+		return KSFT_SKIP;
 	}
 
-	while ((dir = readdir(d)) != NULL) {
+	ksft_set_plan(9 * numer_of_heaps());
+
+	while ((dir = readdir(d))) {
 		if (!strncmp(dir->d_name, ".", 2))
 			continue;
 		if (!strncmp(dir->d_name, "..", 3))
 			continue;
 
-		printf("Testing heap: %s\n", dir->d_name);
-		printf("=======================================\n");
-		ret = test_alloc_and_import(dir->d_name);
-		if (ret)
-			break;
-
-		ret = test_alloc_zeroed(dir->d_name, 4 * 1024);
-		if (ret)
-			break;
-
-		ret = test_alloc_zeroed(dir->d_name, ONE_MEG);
-		if (ret)
-			break;
-
-		ret = test_alloc_compat(dir->d_name);
-		if (ret)
-			break;
-
-		ret = test_alloc_errors(dir->d_name);
-		if (ret)
-			break;
+		ksft_print_msg("Testing heap: %s\n", dir->d_name);
+		ksft_print_msg("=======================================\n");
+		test_alloc_and_import(dir->d_name);
+		test_alloc_zeroed(dir->d_name, 4 * 1024);
+		test_alloc_zeroed(dir->d_name, ONE_MEG);
+		test_alloc_compat(dir->d_name);
+		test_alloc_errors(dir->d_name);
 	}
 	closedir(d);
 
-	return ret;
+	ksft_finished();
 }