Current, the dewake_scanline variable is defined as unsigned int,
an unsigned int variable that is always greater than or equal to 0.
when _intel_dsb_commit function is called by intel_dsb_commit function,
the dewake_scanline variable may have an int value.
So the dewake_scanline variable is necessary to defined as an int.
Fixes: f83b94d23770 ("drm/i915/dsb: Use DEwake to combat PkgC latency")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202310052201.AnVbpgPr-lkp@xxxxxxxxx/
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Signed-off-by: heminhong <heminhong@xxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dsb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c
index 78b6fe24dcd8..7fd6280c54a7 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -340,7 +340,7 @@ static int intel_dsb_dewake_scanline(const struct intel_crtc_state *crtc_state)
}
static void _intel_dsb_commit(struct intel_dsb *dsb, u32 ctrl,
- unsigned int dewake_scanline)
+ int dewake_scanline)
{
struct intel_crtc *crtc = dsb->crtc;
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
--
2.25.1
