smatch correctly warns:
drivers/gpu/drm/drm_fb_helper.c:1960 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
drivers/gpu/drm/drm_fb_helper.c:2001 drm_target_preferred() warn: should '1 << i' be a 64 bit type?
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_fb_helper.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 851a7e30444b..3a71a03b14a9 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1945,19 +1945,20 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
bool *enabled, int width, int height)
{
struct drm_fb_helper_connector *fb_helper_conn;
- int i;
- uint64_t conn_configured = 0, mask;
+ const u64 mask = BIT_ULL(fb_helper->connector_count) - 1;
+ u64 conn_configured = 0;
int tile_pass = 0;
- mask = (1 << fb_helper->connector_count) - 1;
+ int i;
+
retry:
drm_fb_helper_for_each_connector(fb_helper, i) {
fb_helper_conn = fb_helper->connector_info[i];
- if (conn_configured & (1 << i))
+ if (conn_configured & BIT_ULL(i))
continue;
if (enabled[i] == false) {
- conn_configured |= (1 << i);
+ conn_configured |= BIT_ULL(i);
continue;
}
@@ -1998,7 +1999,7 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
}
DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
"none");
- conn_configured |= (1 << i);
+ conn_configured |= BIT_ULL(i);
}
if ((conn_configured & mask) != mask) {
--
2.10.2
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