The patch below does not apply to the 4.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 2f10d823739680d2477ce34437e8a08a53117f40 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>
Date: Fri, 25 Jan 2019 15:55:33 -0600
Subject: [PATCH] drm/amd/powerplay: Fix missing break in switch
Add missing break statement in order to prevent the code from falling
through to the default case.
The resoning for this is that pclk_vol_table is an automatic variable.
So, it makes no sense to update it just before falling through to the
default case and return -EINVAL.
This bug was found thanks to the ongoing efforts to enabling
-Wimplicit-fallthrough.
Fixes: cd70f3d6e3fa ("drm/amd/powerplay: PP/DAL interface changes for dynamic clock switch")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index f95c5f50eb0f..5273de3c5b98 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -1033,6 +1033,7 @@ static int smu10_get_clock_by_type_with_latency(struct pp_hwmgr *hwmgr,
break;
case amd_pp_dpp_clock:
pclk_vol_table = pinfo->vdd_dep_on_dppclk;
+ break;
default:
return -EINVAL;
}
