From: Arnd Bergmann <a...@arndb.de>
The thread sanitizer makes the stack usage explode from extra variable
spills in dispc_runtime_resume:
drivers/gpu/drm/omapdrm/dss/dispc.c:4735:27: error: stack frame size (1824)
exceeds limit (1280) in 'dispc_runtime_resume' [-Werror,-Wframe-larger-than]
I could not figure out what exactly is going on here, but I see that
whenever dispc_restore_context() is not inlined, that function
and its caller shrink below 900 bytes combined of stack usage.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
drivers/gpu/drm/omapdrm/dss/dispc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c
b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 533f70e8a4a6..cf055815077c 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -524,7 +524,7 @@ static void dispc_save_context(struct dispc_device *dispc)
DSSDBG("context saved\n");
}
-static void dispc_restore_context(struct dispc_device *dispc)
+static noinline_for_stack void dispc_restore_context(struct dispc_device
*dispc)
{
int i, j;
--
2.39.5
