[PATCH v1 04/15] power/cppc_cpufreq: enforce enabled lcore ID check

Huisong Li lihuisong at huawei.com
Thu Apr 16 05:06:01 CEST 2026


The locre ID in cpufreq power must be enabled core in application.
Use rte_lcore_is_enabled to verify lcore_id.

Fixes: 6f987b594fa6 ("power: refactor core power management")
Cc: stable at dpdk.org

Signed-off-by: Huisong Li <lihuisong at huawei.com>
---
 drivers/power/cppc/cppc_cpufreq.c | 56 +++++++++++++++----------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/drivers/power/cppc/cppc_cpufreq.c b/drivers/power/cppc/cppc_cpufreq.c
index 3cd4165c83..e63cec7ce5 100644
--- a/drivers/power/cppc/cppc_cpufreq.c
+++ b/drivers/power/cppc/cppc_cpufreq.c
@@ -346,9 +346,8 @@ power_cppc_cpufreq_init(unsigned int lcore_id)
 		return -1;
 	}
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Lcore id %u can not exceeds %u",
-				lcore_id, RTE_MAX_LCORE - 1U);
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -429,11 +428,11 @@ power_cppc_cpufreq_exit(unsigned int lcore_id)
 	struct cppc_power_info *pi;
 	uint32_t exp_state;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Lcore id %u can not exceeds %u",
-				lcore_id, RTE_MAX_LCORE - 1U);
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
+
 	pi = &lcore_power_info[lcore_id];
 	exp_state = POWER_USED;
 	/* The power in use state works as a guard variable between
@@ -479,8 +478,8 @@ power_cppc_cpufreq_freqs(unsigned int lcore_id, uint32_t *freqs, uint32_t num)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return 0;
 	}
 
@@ -502,8 +501,8 @@ power_cppc_cpufreq_freqs(unsigned int lcore_id, uint32_t *freqs, uint32_t num)
 uint32_t
 power_cppc_cpufreq_get_freq(unsigned int lcore_id)
 {
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return RTE_POWER_INVALID_FREQ_INDEX;
 	}
 
@@ -513,8 +512,8 @@ power_cppc_cpufreq_get_freq(unsigned int lcore_id)
 int
 power_cppc_cpufreq_set_freq(unsigned int lcore_id, uint32_t index)
 {
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -526,8 +525,8 @@ power_cppc_cpufreq_freq_down(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -544,8 +543,8 @@ power_cppc_cpufreq_freq_up(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -561,8 +560,8 @@ power_cppc_cpufreq_freq_up(unsigned int lcore_id)
 int
 power_cppc_cpufreq_freq_max(unsigned int lcore_id)
 {
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -585,8 +584,8 @@ power_cppc_cpufreq_freq_min(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -601,8 +600,8 @@ power_cppc_turbo_status(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -616,8 +615,8 @@ power_cppc_enable_turbo(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -652,8 +651,8 @@ power_cppc_disable_turbo(unsigned int lcore_id)
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
 
@@ -680,10 +679,11 @@ power_cppc_get_capabilities(unsigned int lcore_id,
 {
 	struct cppc_power_info *pi;
 
-	if (lcore_id >= RTE_MAX_LCORE) {
-		POWER_LOG(ERR, "Invalid lcore ID");
+	if (!rte_lcore_is_enabled(lcore_id)) {
+		POWER_LOG(ERR, "lcore id %u is not enabled", lcore_id);
 		return -1;
 	}
+
 	if (caps == NULL) {
 		POWER_LOG(ERR, "Invalid argument");
 		return -1;
-- 
2.33.0



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