drm/amd/pp: use mlck_table.count for array loop index limit
authorColin Ian King <colin.king@canonical.com>
Wed, 21 Mar 2018 18:26:53 +0000 (18:26 +0000)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 23 Mar 2018 14:42:00 +0000 (09:42 -0500)
v2: use temporaries to trivially reduces object size.

The for-loops process data in the mclk_table but use slck_table.count
as the loop index limit.  I believe these are cut-n-paste errors from
the previous almost identical loops as indicated by static analysis.
Fix these.

Detected by CoverityScan, CID#1466001 ("Copy-paste error")

Fixes: 5d97cf39ff24 ("drm/amd/pp: Add and initialize OD_dpm_table for CI/VI.")
Fixes: 5e4d4fbea557 ("drm/amd/pp: Implement edit_dpm_table on smu7")
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

index f80885b46f1325edf4668cd72139b5c28ce09686..2b0c366d6149f0f15403f6683f808ba23fa846f8 100644 (file)
@@ -833,6 +833,7 @@ static int smu7_odn_initial_default_setting(struct pp_hwmgr *hwmgr)
 
        struct phm_ppt_v1_clock_voltage_dependency_table *dep_sclk_table;
        struct phm_ppt_v1_clock_voltage_dependency_table *dep_mclk_table;
+       struct phm_odn_performance_level *entries;
 
        if (table_info == NULL)
                return -EINVAL;
@@ -842,11 +843,11 @@ static int smu7_odn_initial_default_setting(struct pp_hwmgr *hwmgr)
 
        odn_table->odn_core_clock_dpm_levels.num_of_pl =
                                                data->golden_dpm_table.sclk_table.count;
+       entries = odn_table->odn_core_clock_dpm_levels.entries;
        for (i=0; i<data->golden_dpm_table.sclk_table.count; i++) {
-               odn_table->odn_core_clock_dpm_levels.entries[i].clock =
-                                       data->golden_dpm_table.sclk_table.dpm_levels[i].value;
-               odn_table->odn_core_clock_dpm_levels.entries[i].enabled = true;
-               odn_table->odn_core_clock_dpm_levels.entries[i].vddc = dep_sclk_table->entries[i].vddc;
+               entries[i].clock = data->golden_dpm_table.sclk_table.dpm_levels[i].value;
+               entries[i].enabled = true;
+               entries[i].vddc = dep_sclk_table->entries[i].vddc;
        }
 
        smu7_get_voltage_dependency_table(dep_sclk_table,
@@ -854,11 +855,11 @@ static int smu7_odn_initial_default_setting(struct pp_hwmgr *hwmgr)
 
        odn_table->odn_memory_clock_dpm_levels.num_of_pl =
                                                data->golden_dpm_table.mclk_table.count;
-       for (i=0; i<data->golden_dpm_table.sclk_table.count; i++) {
-               odn_table->odn_memory_clock_dpm_levels.entries[i].clock =
-                                       data->golden_dpm_table.mclk_table.dpm_levels[i].value;
-               odn_table->odn_memory_clock_dpm_levels.entries[i].enabled = true;
-               odn_table->odn_memory_clock_dpm_levels.entries[i].vddc = dep_mclk_table->entries[i].vddc;
+       entries = odn_table->odn_memory_clock_dpm_levels.entries;
+       for (i=0; i<data->golden_dpm_table.mclk_table.count; i++) {
+               entries[i].clock = data->golden_dpm_table.mclk_table.dpm_levels[i].value;
+               entries[i].enabled = true;
+               entries[i].vddc = dep_mclk_table->entries[i].vddc;
        }
 
        smu7_get_voltage_dependency_table(dep_mclk_table,
@@ -4728,7 +4729,7 @@ static void smu7_check_dpm_table_updated(struct pp_hwmgr *hwmgr)
                }
        }
 
-       for (i=0; i<data->dpm_table.sclk_table.count; i++) {
+       for (i=0; i<data->dpm_table.mclk_table.count; i++) {
                if (odn_table->odn_memory_clock_dpm_levels.entries[i].clock !=
                                        data->dpm_table.mclk_table.dpm_levels[i].value) {
                        data->need_update_smu7_dpm_table |= DPMTABLE_OD_UPDATE_MCLK;