cpufreq/amd-pstate: Add static asserts for EPP indices

In case a new index is introduced add a static assert to make sure
that strings and values are updated.

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index a0f21ac1205af61b145663ffa1e3fedfe78c8427..b3dad7cde46f0f5ffcdab77848d76db325ef36ae 100644 (file)
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -110,6 +110,7 @@ enum energy_perf_value_index {
        EPP_INDEX_BALANCE_PERFORMANCE,
        EPP_INDEX_BALANCE_POWERSAVE,
        EPP_INDEX_POWERSAVE,
+       EPP_INDEX_MAX,
 };
 
 static const char * const energy_perf_strings[] = {
@@ -119,6 +120,7 @@ static const char * const energy_perf_strings[] = {
        [EPP_INDEX_BALANCE_POWERSAVE] = "balance_power",
        [EPP_INDEX_POWERSAVE] = "power",
 };
+static_assert(ARRAY_SIZE(energy_perf_strings) == EPP_INDEX_MAX);
 
 static unsigned int epp_values[] = {
        [EPP_INDEX_DEFAULT] = 0,
@@ -127,6 +129,7 @@ static unsigned int epp_values[] = {
        [EPP_INDEX_BALANCE_POWERSAVE] = AMD_CPPC_EPP_BALANCE_POWERSAVE,
        [EPP_INDEX_POWERSAVE] = AMD_CPPC_EPP_POWERSAVE,
 };
+static_assert(ARRAY_SIZE(epp_values) == EPP_INDEX_MAX);
 
 typedef int (*cppc_mode_transition_fn)(int);