[GIT PULL] KUnit second update for Linux 6.1-rc1

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Hi Linus,

Please pull the following second KUnit update for Linux 6.1-rc1.

This second KUnit update for Linux 6.1-rc1 consists of features and
fixes:

- simplifying resource use.
- make kunit_malloc() and kunit_free() allocations and frees consistent.
  kunit_free() frees only the memory allocated by kunit_malloc().
- stop downloading risc-v  opensbi binaries using wget.
- other fixes and improvements to tool and KUnit framework.

diff for this pull request is attached.

thanks,
-- Shuah

----------------------------------------------------------------
The following changes since commit 4e37057387cca749b7fbc8c77e3d86605117fffd:

  Documentation: Kunit: Use full path to .kunitconfig (2022-09-30 13:23:06 -0600)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-6.1-rc1-2

for you to fetch changes up to e98c4f6afc5e21507737066433699f225a180db7:

  Documentation: kunit: Update description of --alltests option (2022-10-07 10:19:25 -0600)

----------------------------------------------------------------
linux-kselftest-kunit-6.1-rc1-2

This second KUnit update for Linux 6.1-rc1 consists of features and
fixes:

- simplifying resource use.
- make kunit_malloc() and kunit_free() allocations and frees consistent.
  kunit_free() frees only the memory allocated by kunit_malloc().
- stop downloading risc-v  opensbi binaries using wget.
- other fixes and improvements to tool and KUnit framework.

----------------------------------------------------------------
Daniel Latypov (7):
      kunit: drop test pointer in string_stream_fragment
      kunit: make kunit_kfree() only work on pointers from kunit_malloc() and friends
      kunit: make kunit_kfree() not segfault on invalid inputs
      kunit: make kunit_kfree(NULL) a no-op to match kfree()
      kunit: remove format func from struct kunit_assert, get it to 0 bytes
      kunit: rename base KUNIT_ASSERTION macro to _KUNIT_FAILED
      kunit: declare kunit_assert structs as const

David Gow (3):
      kunit: string-stream: Simplify resource use
      kunit: tool: Don't download risc-v opensbi firmware with wget
      Documentation: kunit: Update description of --alltests option

 Documentation/dev-tools/kunit/run_wrapper.rst |  17 ++--
 include/kunit/assert.h                        |  28 ++----
 include/kunit/resource.h                      |  16 ----
 include/kunit/test.h                          | 120 ++++++++++++++------------
 lib/kunit/kunit-test.c                        |   7 ++
 lib/kunit/string-stream.c                     |  96 ++++-----------------
 lib/kunit/string-stream.h                     |   3 +-
 lib/kunit/test.c                              |  32 +++----
 tools/testing/kunit/qemu_configs/riscv.py     |  18 ++--
 9 files changed, 131 insertions(+), 206 deletions(-)
----------------------------------------------------------------
diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index 6b33caf6c8ab..dafe8eb28d30 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -251,14 +251,15 @@ command line arguments:
   compiling a kernel (using ``build`` or ``run`` commands). For example:
   to enable compiler warnings, we can pass ``--make_options W=1``.
 
-- ``--alltests``: Builds a UML kernel with all config options enabled
-  using ``make allyesconfig``. This allows us to run as many tests as
-  possible.
-
-  .. note:: It is slow and prone to breakage as new options are
-            added or modified. Instead, enable all tests
-            which have satisfied dependencies by adding
-            ``CONFIG_KUNIT_ALL_TESTS=y`` to your ``.kunitconfig``.
+- ``--alltests``: Enable a predefined set of options in order to build
+  as many tests as possible.
+
+  .. note:: The list of enabled options can be found in
+            ``tools/testing/kunit/configs/all_tests.config``.
+
+            If you only want to enable all tests with otherwise satisfied
+            dependencies, instead add ``CONFIG_KUNIT_ALL_TESTS=y`` to your
+            ``.kunitconfig``.
 
 - ``--kunitconfig``: Specifies the path or the directory of the ``.kunitconfig``
   file. For example:
diff --git a/include/kunit/assert.h b/include/kunit/assert.h
index 4b52e12c2ae8..ace3de8d1ee7 100644
--- a/include/kunit/assert.h
+++ b/include/kunit/assert.h
@@ -42,16 +42,15 @@ struct kunit_loc {
 
 /**
  * struct kunit_assert - Data for printing a failed assertion or expectation.
- * @format: a function which formats the data in this kunit_assert to a string.
  *
  * Represents a failed expectation/assertion. Contains all the data necessary to
  * format a string to a user reporting the failure.
  */
-struct kunit_assert {
-	void (*format)(const struct kunit_assert *assert,
-		       const struct va_format *message,
-		       struct string_stream *stream);
-};
+struct kunit_assert {};
+
+typedef void (*assert_format_t)(const struct kunit_assert *assert,
+				const struct va_format *message,
+				struct string_stream *stream);
 
 void kunit_assert_prologue(const struct kunit_loc *loc,
 			   enum kunit_assert_type type,
@@ -71,16 +70,6 @@ void kunit_fail_assert_format(const struct kunit_assert *assert,
 			      const struct va_format *message,
 			      struct string_stream *stream);
 
-/**
- * KUNIT_INIT_FAIL_ASSERT_STRUCT - Initializer for &struct kunit_fail_assert.
- *
- * Initializes a &struct kunit_fail_assert. Intended to be used in
- * KUNIT_EXPECT_* and KUNIT_ASSERT_* macros.
- */
-#define KUNIT_INIT_FAIL_ASSERT_STRUCT {					\
-	.assert = { .format = kunit_fail_assert_format },		\
-}
-
 /**
  * struct kunit_unary_assert - Represents a KUNIT_{EXPECT|ASSERT}_{TRUE|FALSE}
  * @assert: The parent of this type.
@@ -110,7 +99,6 @@ void kunit_unary_assert_format(const struct kunit_assert *assert,
  * KUNIT_EXPECT_* and KUNIT_ASSERT_* macros.
  */
 #define KUNIT_INIT_UNARY_ASSERT_STRUCT(cond, expect_true) {		       \
-	.assert = { .format = kunit_unary_assert_format },		       \
 	.condition = cond,						       \
 	.expected_true = expect_true					       \
 }
@@ -145,7 +133,6 @@ void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert,
  * KUNIT_EXPECT_* and KUNIT_ASSERT_* macros.
  */
 #define KUNIT_INIT_PTR_NOT_ERR_STRUCT(txt, val) {			       \
-	.assert = { .format = kunit_ptr_not_err_assert_format },	       \
 	.text = txt,							       \
 	.value = val							       \
 }
@@ -190,7 +177,6 @@ void kunit_binary_assert_format(const struct kunit_assert *assert,
  * KUNIT_INIT_BINARY_ASSERT_STRUCT() - Initializes a binary assert like
  *	kunit_binary_assert, kunit_binary_ptr_assert, etc.
  *
- * @format_func: a function which formats the assert to a string.
  * @text_: Pointer to a kunit_binary_assert_text.
  * @left_val: The actual evaluated value of the expression in the left slot.
  * @right_val: The actual evaluated value of the expression in the right slot.
@@ -200,11 +186,9 @@ void kunit_binary_assert_format(const struct kunit_assert *assert,
  * fields but with different types for left_val/right_val.
  * This is ultimately used by binary assertion macros like KUNIT_EXPECT_EQ, etc.
  */
-#define KUNIT_INIT_BINARY_ASSERT_STRUCT(format_func,			       \
-					text_,				       \
+#define KUNIT_INIT_BINARY_ASSERT_STRUCT(text_,				       \
 					left_val,			       \
 					right_val) {			       \
-	.assert = { .format = format_func },				       \
 	.text = text_,							       \
 	.left_value = left_val,						       \
 	.right_value = right_val					       \
diff --git a/include/kunit/resource.h b/include/kunit/resource.h
index 09c2b34d1c61..cf6fb8f2ac1b 100644
--- a/include/kunit/resource.h
+++ b/include/kunit/resource.h
@@ -300,22 +300,6 @@ typedef bool (*kunit_resource_match_t)(struct kunit *test,
 				       struct kunit_resource *res,
 				       void *match_data);
 
-/**
- * kunit_resource_instance_match() - Match a resource with the same instance.
- * @test: Test case to which the resource belongs.
- * @res: The resource.
- * @match_data: The resource pointer to match against.
- *
- * An instance of kunit_resource_match_t that matches a resource whose
- * allocation matches @match_data.
- */
-static inline bool kunit_resource_instance_match(struct kunit *test,
-						 struct kunit_resource *res,
-						 void *match_data)
-{
-	return res->data == match_data;
-}
-
 /**
  * kunit_resource_name_match() - Match a resource with the same name.
  * @test: Test case to which the resource belongs.
diff --git a/include/kunit/test.h b/include/kunit/test.h
index 20cc4770cb3f..b1ab6b32216d 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -473,30 +473,30 @@ void kunit_do_failed_assertion(struct kunit *test,
 			       const struct kunit_loc *loc,
 			       enum kunit_assert_type type,
 			       const struct kunit_assert *assert,
+			       assert_format_t assert_format,
 			       const char *fmt, ...);
 
-#define KUNIT_ASSERTION(test, assert_type, pass, assert_class, INITIALIZER, fmt, ...) do { \
-	if (unlikely(!(pass))) {					       \
-		static const struct kunit_loc __loc = KUNIT_CURRENT_LOC;       \
-		struct assert_class __assertion = INITIALIZER;		       \
-		kunit_do_failed_assertion(test,				       \
-					  &__loc,			       \
-					  assert_type,			       \
-					  &__assertion.assert,		       \
-					  fmt,				       \
-					  ##__VA_ARGS__);		       \
-	}								       \
+#define _KUNIT_FAILED(test, assert_type, assert_class, assert_format, INITIALIZER, fmt, ...) do { \
+	static const struct kunit_loc __loc = KUNIT_CURRENT_LOC;	       \
+	const struct assert_class __assertion = INITIALIZER;		       \
+	kunit_do_failed_assertion(test,					       \
+				  &__loc,				       \
+				  assert_type,				       \
+				  &__assertion.assert,			       \
+				  assert_format,			       \
+				  fmt,					       \
+				  ##__VA_ARGS__);			       \
 } while (0)
 
 
 #define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...)		       \
-	KUNIT_ASSERTION(test,						       \
-			assert_type,					       \
-			false,						       \
-			kunit_fail_assert,				       \
-			KUNIT_INIT_FAIL_ASSERT_STRUCT,			       \
-			fmt,						       \
-			##__VA_ARGS__)
+	_KUNIT_FAILED(test,						       \
+		      assert_type,					       \
+		      kunit_fail_assert,				       \
+		      kunit_fail_assert_format,				       \
+		      {},						       \
+		      fmt,						       \
+		      ##__VA_ARGS__)
 
 /**
  * KUNIT_FAIL() - Always causes a test to fail when evaluated.
@@ -521,14 +521,19 @@ void kunit_do_failed_assertion(struct kunit *test,
 			      expected_true,				       \
 			      fmt,					       \
 			      ...)					       \
-	KUNIT_ASSERTION(test,						       \
-			assert_type,					       \
-			!!(condition) == !!expected_true,		       \
-			kunit_unary_assert,				       \
-			KUNIT_INIT_UNARY_ASSERT_STRUCT(#condition,	       \
-						       expected_true),	       \
-			fmt,						       \
-			##__VA_ARGS__)
+do {									       \
+	if (likely(!!(condition) == !!expected_true))			       \
+		break;							       \
+									       \
+	_KUNIT_FAILED(test,						       \
+		      assert_type,					       \
+		      kunit_unary_assert,				       \
+		      kunit_unary_assert_format,			       \
+		      KUNIT_INIT_UNARY_ASSERT_STRUCT(#condition,	       \
+						     expected_true),	       \
+		      fmt,						       \
+		      ##__VA_ARGS__);					       \
+} while (0)
 
 #define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...)       \
 	KUNIT_UNARY_ASSERTION(test,					       \
@@ -578,16 +583,18 @@ do {									       \
 		.right_text = #right,					       \
 	};								       \
 									       \
-	KUNIT_ASSERTION(test,						       \
-			assert_type,					       \
-			__left op __right,				       \
-			assert_class,					       \
-			KUNIT_INIT_BINARY_ASSERT_STRUCT(format_func,	       \
-							&__text,	       \
-							__left,		       \
-							__right),	       \
-			fmt,						       \
-			##__VA_ARGS__);					       \
+	if (likely(__left op __right))					       \
+		break;							       \
+									       \
+	_KUNIT_FAILED(test,						       \
+		      assert_type,					       \
+		      assert_class,					       \
+		      format_func,					       \
+		      KUNIT_INIT_BINARY_ASSERT_STRUCT(&__text,		       \
+						      __left,		       \
+						      __right),		       \
+		      fmt,						       \
+		      ##__VA_ARGS__);					       \
 } while (0)
 
 #define KUNIT_BINARY_INT_ASSERTION(test,				       \
@@ -636,16 +643,19 @@ do {									       \
 		.right_text = #right,					       \
 	};								       \
 									       \
-	KUNIT_ASSERTION(test,						       \
-			assert_type,					       \
-			strcmp(__left, __right) op 0,			       \
-			kunit_binary_str_assert,			       \
-			KUNIT_INIT_BINARY_ASSERT_STRUCT(kunit_binary_str_assert_format,\
-							&__text,	       \
-							__left,		       \
-							__right),	       \
-			fmt,						       \
-			##__VA_ARGS__);					       \
+	if (likely(strcmp(__left, __right) op 0))			       \
+		break;							       \
+									       \
+									       \
+	_KUNIT_FAILED(test,						       \
+		      assert_type,					       \
+		      kunit_binary_str_assert,				       \
+		      kunit_binary_str_assert_format,			       \
+		      KUNIT_INIT_BINARY_ASSERT_STRUCT(&__text,		       \
+						      __left,		       \
+						      __right),		       \
+		      fmt,						       \
+		      ##__VA_ARGS__);					       \
 } while (0)
 
 #define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test,			       \
@@ -656,14 +666,16 @@ do {									       \
 do {									       \
 	const typeof(ptr) __ptr = (ptr);				       \
 									       \
-	KUNIT_ASSERTION(test,						       \
-			assert_type,					       \
-			!IS_ERR_OR_NULL(__ptr),				       \
-			kunit_ptr_not_err_assert,			       \
-			KUNIT_INIT_PTR_NOT_ERR_STRUCT(#ptr,		       \
-						      __ptr),		       \
-			fmt,						       \
-			##__VA_ARGS__);					       \
+	if (!IS_ERR_OR_NULL(__ptr))					       \
+		break;							       \
+									       \
+	_KUNIT_FAILED(test,						       \
+		      assert_type,					       \
+		      kunit_ptr_not_err_assert,				       \
+		      kunit_ptr_not_err_assert_format,			       \
+		      KUNIT_INIT_PTR_NOT_ERR_STRUCT(#ptr, __ptr),	       \
+		      fmt,						       \
+		      ##__VA_ARGS__);					       \
 } while (0)
 
 /**
diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c
index 13d0bd8b07a9..4df0335d0d06 100644
--- a/lib/kunit/kunit-test.c
+++ b/lib/kunit/kunit-test.c
@@ -161,6 +161,13 @@ static void kunit_resource_test_alloc_resource(struct kunit *test)
 	kunit_put_resource(res);
 }
 
+static inline bool kunit_resource_instance_match(struct kunit *test,
+						 struct kunit_resource *res,
+						 void *match_data)
+{
+	return res->data == match_data;
+}
+
 /*
  * Note: tests below use kunit_alloc_and_get_resource(), so as a consequence
  * they have a reference to the associated resource that they must release
diff --git a/lib/kunit/string-stream.c b/lib/kunit/string-stream.c
index 141789ca8949..f5ae79c37400 100644
--- a/lib/kunit/string-stream.c
+++ b/lib/kunit/string-stream.c
@@ -12,62 +12,29 @@
 
 #include "string-stream.h"
 
-struct string_stream_fragment_alloc_context {
-	struct kunit *test;
-	int len;
-	gfp_t gfp;
-};
 
-static int string_stream_fragment_init(struct kunit_resource *res,
-				       void *context)
+static struct string_stream_fragment *alloc_string_stream_fragment(
+		struct kunit *test, int len, gfp_t gfp)
 {
-	struct string_stream_fragment_alloc_context *ctx = context;
 	struct string_stream_fragment *frag;
 
-	frag = kunit_kzalloc(ctx->test, sizeof(*frag), ctx->gfp);
+	frag = kunit_kzalloc(test, sizeof(*frag), gfp);
 	if (!frag)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
-	frag->test = ctx->test;
-	frag->fragment = kunit_kmalloc(ctx->test, ctx->len, ctx->gfp);
+	frag->fragment = kunit_kmalloc(test, len, gfp);
 	if (!frag->fragment)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
-	res->data = frag;
-
-	return 0;
+	return frag;
 }
 
-static void string_stream_fragment_free(struct kunit_resource *res)
+static void string_stream_fragment_destroy(struct kunit *test,
+					   struct string_stream_fragment *frag)
 {
-	struct string_stream_fragment *frag = res->data;
-
 	list_del(&frag->node);
-	kunit_kfree(frag->test, frag->fragment);
-	kunit_kfree(frag->test, frag);
-}
-
-static struct string_stream_fragment *alloc_string_stream_fragment(
-		struct kunit *test, int len, gfp_t gfp)
-{
-	struct string_stream_fragment_alloc_context context = {
-		.test = test,
-		.len = len,
-		.gfp = gfp
-	};
-
-	return kunit_alloc_resource(test,
-				    string_stream_fragment_init,
-				    string_stream_fragment_free,
-				    gfp,
-				    &context);
-}
-
-static int string_stream_fragment_destroy(struct string_stream_fragment *frag)
-{
-	return kunit_destroy_resource(frag->test,
-				      kunit_resource_instance_match,
-				      frag);
+	kunit_kfree(test, frag->fragment);
+	kunit_kfree(test, frag);
 }
 
 int string_stream_vadd(struct string_stream *stream,
@@ -122,7 +89,7 @@ static void string_stream_clear(struct string_stream *stream)
 				 frag_container_safe,
 				 &stream->fragments,
 				 node) {
-		string_stream_fragment_destroy(frag_container);
+		string_stream_fragment_destroy(stream->test, frag_container);
 	}
 	stream->length = 0;
 	spin_unlock(&stream->lock);
@@ -169,48 +136,23 @@ struct string_stream_alloc_context {
 	gfp_t gfp;
 };
 
-static int string_stream_init(struct kunit_resource *res, void *context)
+struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp)
 {
 	struct string_stream *stream;
-	struct string_stream_alloc_context *ctx = context;
 
-	stream = kunit_kzalloc(ctx->test, sizeof(*stream), ctx->gfp);
+	stream = kunit_kzalloc(test, sizeof(*stream), gfp);
 	if (!stream)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
-	res->data = stream;
-	stream->gfp = ctx->gfp;
-	stream->test = ctx->test;
+	stream->gfp = gfp;
+	stream->test = test;
 	INIT_LIST_HEAD(&stream->fragments);
 	spin_lock_init(&stream->lock);
 
-	return 0;
+	return stream;
 }
 
-static void string_stream_free(struct kunit_resource *res)
+void string_stream_destroy(struct string_stream *stream)
 {
-	struct string_stream *stream = res->data;
-
 	string_stream_clear(stream);
 }
-
-struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp)
-{
-	struct string_stream_alloc_context context = {
-		.test = test,
-		.gfp = gfp
-	};
-
-	return kunit_alloc_resource(test,
-				    string_stream_init,
-				    string_stream_free,
-				    gfp,
-				    &context);
-}
-
-int string_stream_destroy(struct string_stream *stream)
-{
-	return kunit_destroy_resource(stream->test,
-				      kunit_resource_instance_match,
-				      stream);
-}
diff --git a/lib/kunit/string-stream.h b/lib/kunit/string-stream.h
index 43f9508a55b4..b669f9a75a94 100644
--- a/lib/kunit/string-stream.h
+++ b/lib/kunit/string-stream.h
@@ -14,7 +14,6 @@
 #include <linux/stdarg.h>
 
 struct string_stream_fragment {
-	struct kunit *test;
 	struct list_head node;
 	char *fragment;
 };
@@ -46,6 +45,6 @@ int string_stream_append(struct string_stream *stream,
 
 bool string_stream_is_empty(struct string_stream *stream);
 
-int string_stream_destroy(struct string_stream *stream);
+void string_stream_destroy(struct string_stream *stream);
 
 #endif /* _KUNIT_STRING_STREAM_H */
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 1e54373309a4..90640a43cf62 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -258,7 +258,7 @@ static void kunit_print_string_stream(struct kunit *test,
 
 static void kunit_fail(struct kunit *test, const struct kunit_loc *loc,
 		       enum kunit_assert_type type, const struct kunit_assert *assert,
-		       const struct va_format *message)
+		       assert_format_t assert_format, const struct va_format *message)
 {
 	struct string_stream *stream;
 
@@ -274,11 +274,11 @@ static void kunit_fail(struct kunit *test, const struct kunit_loc *loc,
 	}
 
 	kunit_assert_prologue(loc, type, stream);
-	assert->format(assert, message, stream);
+	assert_format(assert, message, stream);
 
 	kunit_print_string_stream(test, stream);
 
-	WARN_ON(string_stream_destroy(stream));
+	string_stream_destroy(stream);
 }
 
 static void __noreturn kunit_abort(struct kunit *test)
@@ -298,6 +298,7 @@ void kunit_do_failed_assertion(struct kunit *test,
 			       const struct kunit_loc *loc,
 			       enum kunit_assert_type type,
 			       const struct kunit_assert *assert,
+			       assert_format_t assert_format,
 			       const char *fmt, ...)
 {
 	va_list args;
@@ -307,7 +308,7 @@ void kunit_do_failed_assertion(struct kunit *test,
 	message.fmt = fmt;
 	message.va = &args;
 
-	kunit_fail(test, loc, type, assert, &message);
+	kunit_fail(test, loc, type, assert, assert_format, &message);
 
 	va_end(args);
 
@@ -713,21 +714,20 @@ void *kunit_kmalloc_array(struct kunit *test, size_t n, size_t size, gfp_t gfp)
 }
 EXPORT_SYMBOL_GPL(kunit_kmalloc_array);
 
-void kunit_kfree(struct kunit *test, const void *ptr)
+static inline bool kunit_kfree_match(struct kunit *test,
+				     struct kunit_resource *res, void *match_data)
 {
-	struct kunit_resource *res;
-
-	res = kunit_find_resource(test, kunit_resource_instance_match,
-				  (void *)ptr);
-
-	/*
-	 * Removing the resource from the list of resources drops the
-	 * reference count to 1; the final put will trigger the free.
-	 */
-	kunit_remove_resource(test, res);
+	/* Only match resources allocated with kunit_kmalloc() and friends. */
+	return res->free == kunit_kmalloc_array_free && res->data == match_data;
+}
 
-	kunit_put_resource(res);
+void kunit_kfree(struct kunit *test, const void *ptr)
+{
+	if (!ptr)
+		return;
 
+	if (kunit_destroy_resource(test, kunit_kfree_match, (void *)ptr))
+		KUNIT_FAIL(test, "kunit_kfree: %px already freed or not allocated by kunit", ptr);
 }
 EXPORT_SYMBOL_GPL(kunit_kfree);
 
diff --git a/tools/testing/kunit/qemu_configs/riscv.py b/tools/testing/kunit/qemu_configs/riscv.py
index 6207be146d26..12a1d525978a 100644
--- a/tools/testing/kunit/qemu_configs/riscv.py
+++ b/tools/testing/kunit/qemu_configs/riscv.py
@@ -3,17 +3,13 @@ import os
 import os.path
 import sys
 
-GITHUB_OPENSBI_URL = 'https://github.com/qemu/qemu/raw/master/pc-bios/opensbi-riscv64-generic-fw_dynamic.bin'
-OPENSBI_FILE = os.path.basename(GITHUB_OPENSBI_URL)
+OPENSBI_FILE = 'opensbi-riscv64-generic-fw_dynamic.bin'
+OPENSBI_PATH = '/usr/share/qemu/' + OPENSBI_FILE
 
-if not os.path.isfile(OPENSBI_FILE):
-	print('\n\nOpenSBI file is not in the current working directory.\n'
-	      'Would you like me to download it for you from:\n' + GITHUB_OPENSBI_URL + ' ?\n')
-	response = input('yes/[no]: ')
-	if response.strip() == 'yes':
-		os.system('wget ' + GITHUB_OPENSBI_URL)
-	else:
-		sys.exit()
+if not os.path.isfile(OPENSBI_PATH):
+	print('\n\nOpenSBI bios was not found in "' + OPENSBI_PATH + '".\n'
+	      'Please ensure that qemu-system-riscv is installed, or edit the path in "qemu_configs/riscv.py"\n')
+	sys.exit()
 
 QEMU_ARCH = QemuArchParams(linux_arch='riscv',
 			   kconfig='''
@@ -29,4 +25,4 @@ CONFIG_SERIAL_EARLYCON_RISCV_SBI=y''',
 			   extra_qemu_params=[
 					   '-machine', 'virt',
 					   '-cpu', 'rv64',
-					   '-bios', 'opensbi-riscv64-generic-fw_dynamic.bin'])
+					   '-bios', OPENSBI_PATH])

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