[PATCH v2 4/5] drm/amd/display: Add SPL_ASSERT_BUG() macro definition

[Tiezhu Yang]

In order to keep the current ability for the aim of debugging and avoid
printing the warning message twice, add SPL_ASSERT_BUG() macro definition
to harden the callers of division functions.

Signed-off-by: Tiezhu Yang <yangtiezhu at loongson.cn>
---
 drivers/gpu/drm/amd/display/dc/spl/spl_debug.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/spl/spl_debug.h b/drivers/gpu/drm/amd/display/dc/spl/spl_debug.h
index f01c932d550d..8220c5800692 100644
--- a/drivers/gpu/drm/amd/display/dc/spl/spl_debug.h
+++ b/drivers/gpu/drm/amd/display/dc/spl/spl_debug.h
@@ -11,18 +11,27 @@
 		kgdb_breakpoint(); \
 	} \
 } while (0)
+#define SPL_ASSERT_EMERGENCY(expr) do {	\
+	kgdb_breakpoint(); \
+	BUG_ON(!(expr)); \
+} while (0)
 #else
 #define SPL_ASSERT_CRITICAL(expr) do {	\
 	if (WARN_ON(!(expr))) { \
 		; \
 	} \
 } while (0)
+#define SPL_ASSERT_EMERGENCY(expr) do {	\
+	BUG_ON(!(expr)); \
+} while (0)
 #endif /* CONFIG_HAVE_KGDB || CONFIG_KGDB */
 
 #if defined(CONFIG_DEBUG_KERNEL_DC)
 #define SPL_ASSERT_WARN(expr) SPL_ASSERT_CRITICAL(expr)
+#define SPL_ASSERT_BUG(expr) SPL_ASSERT_EMERGENCY(expr)
 #else
 #define SPL_ASSERT_WARN(expr) WARN_ON(!(expr))
+#define SPL_ASSERT_BUG(expr) BUG_ON(!(expr))
 #endif /* CONFIG_DEBUG_KERNEL_DC */
 
 #define SPL_BREAK_TO_DEBUGGER() SPL_ASSERT_WARN(0)
-- 
2.42.0