diff --git a/lib/librte_power/guest_channel.c b/lib/librte_power/guest_channel.c
index fa5de0f..e7ffc80 100644
--- a/lib/librte_power/guest_channel.c
+++ b/lib/librte_power/guest_channel.c
@@ -51,7 +51,7 @@
 static int global_fds[RTE_MAX_LCORE];
 
 int
-guest_channel_host_connect(const char *path, unsigned lcore_id)
+guest_channel_host_connect(const char *path, unsigned int lcore_id)
 {
 	int flags, ret;
 	struct channel_packet pkt;
@@ -118,7 +118,7 @@ guest_channel_host_connect(const char *path, unsigned lcore_id)
 }
 
 int
-guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id)
+guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id)
 {
 	int ret, buffer_len = sizeof(*pkt);
 	void *buffer = pkt;
@@ -156,7 +156,7 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt,
 
 
 void
-guest_channel_host_disconnect(unsigned lcore_id)
+guest_channel_host_disconnect(unsigned int lcore_id)
 {
 	if (lcore_id >= RTE_MAX_LCORE) {
 		RTE_LOG(ERR, GUEST_CHANNEL, "Channel(%u) is out of range 0...%d\n",
diff --git a/lib/librte_power/guest_channel.h b/lib/librte_power/guest_channel.h
index 741339c..12c2587 100644
--- a/lib/librte_power/guest_channel.h
+++ b/lib/librte_power/guest_channel.h
@@ -53,7 +53,7 @@ extern "C" {
  *  - 0 on success.
  *  - Negative on error.
  */
-int guest_channel_host_connect(const char *path, unsigned lcore_id);
+int guest_channel_host_connect(const char *path, unsigned int lcore_id);
 
 /**
  * Disconnect from an already connected Virtio-Serial Endpoint.
@@ -63,7 +63,7 @@ int guest_channel_host_connect(const char *path, unsigned lcore_id);
  *  lcore_id.
  *
  */
-void guest_channel_host_disconnect(unsigned lcore_id);
+void guest_channel_host_disconnect(unsigned int lcore_id);
 
 /**
  * Send a message contained in pkt over the Virtio-Serial to the host endpoint.
@@ -79,7 +79,7 @@ void guest_channel_host_disconnect(unsigned lcore_id);
  *  - Negative on channel not connected.
  *  - errno on write to channel error.
  */
-int guest_channel_send_msg(struct channel_packet *pkt, unsigned lcore_id);
+int guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id);
 
 /**
  * Send a message contained in pkt over the Virtio-Serial to the host endpoint.
diff --git a/lib/librte_power/rte_power.c b/lib/librte_power/rte_power.c
index b327a86..e7f35cf 100644
--- a/lib/librte_power/rte_power.c
+++ b/lib/librte_power/rte_power.c
@@ -106,7 +106,7 @@ rte_power_get_env(void) {
 }
 
 int
-rte_power_init(unsigned lcore_id)
+rte_power_init(unsigned int lcore_id)
 {
 	int ret = -1;
 
@@ -138,7 +138,7 @@ rte_power_init(unsigned lcore_id)
 }
 
 int
-rte_power_exit(unsigned lcore_id)
+rte_power_exit(unsigned int lcore_id)
 {
 	if (global_default_env == PM_ENV_ACPI_CPUFREQ)
 		return rte_power_acpi_cpufreq_exit(lcore_id);
diff --git a/lib/librte_power/rte_power.h b/lib/librte_power/rte_power.h
index b17b7a5..9b54039 100644
--- a/lib/librte_power/rte_power.h
+++ b/lib/librte_power/rte_power.h
@@ -91,7 +91,7 @@ enum power_management_env rte_power_get_env(void);
  *  - 0 on success.
  *  - Negative on error.
  */
-int rte_power_init(unsigned lcore_id);
+int rte_power_init(unsigned int lcore_id);
 
 /**
  * Exit power management on a specific lcore. This will call the environment
@@ -104,7 +104,7 @@ int rte_power_init(unsigned lcore_id);
  *  - 0 on success.
  *  - Negative on error.
  */
-int rte_power_exit(unsigned lcore_id);
+int rte_power_exit(unsigned int lcore_id);
 
 /**
  * Get the available frequencies of a specific lcore.
@@ -121,7 +121,7 @@ int rte_power_exit(unsigned lcore_id);
  * @return
  *  The number of available frequencies.
  */
-typedef uint32_t (*rte_power_freqs_t)(unsigned lcore_id, uint32_t *freqs,
+typedef uint32_t (*rte_power_freqs_t)(unsigned int lcore_id, uint32_t *freqs,
 		uint32_t num);
 
 extern rte_power_freqs_t rte_power_freqs;
@@ -137,7 +137,7 @@ extern rte_power_freqs_t rte_power_freqs;
  * @return
  *  The current index of available frequencies.
  */
-typedef uint32_t (*rte_power_get_freq_t)(unsigned lcore_id);
+typedef uint32_t (*rte_power_get_freq_t)(unsigned int lcore_id);
 
 extern rte_power_get_freq_t rte_power_get_freq;
 
@@ -157,7 +157,7 @@ extern rte_power_get_freq_t rte_power_get_freq;
  *  - 0 on success without frequency changed.
  *  - Negative on error.
  */
-typedef int (*rte_power_set_freq_t)(unsigned lcore_id, uint32_t index);
+typedef int (*rte_power_set_freq_t)(unsigned int lcore_id, uint32_t index);
 
 extern rte_power_set_freq_t rte_power_set_freq;
 
@@ -173,7 +173,7 @@ extern rte_power_set_freq_t rte_power_set_freq;
  *  - 0 on success without frequency changed.
  *  - Negative on error.
  */
-typedef int (*rte_power_freq_change_t)(unsigned lcore_id);
+typedef int (*rte_power_freq_change_t)(unsigned int lcore_id);
 
 /**
  * Scale up the frequency of a specific lcore according to the available
diff --git a/lib/librte_power/rte_power_acpi_cpufreq.c b/lib/librte_power/rte_power_acpi_cpufreq.c
index 6b0cdb2..618bf45 100644
--- a/lib/librte_power/rte_power_acpi_cpufreq.c
+++ b/lib/librte_power/rte_power_acpi_cpufreq.c
@@ -106,7 +106,7 @@ enum power_state {
  * Power info per lcore.
  */
 struct rte_power_info {
-	unsigned lcore_id;                   /**< Logical core id */
+	unsigned int lcore_id;                   /**< Logical core id */
 	uint32_t freqs[RTE_MAX_LCORE_FREQS]; /**< Frequency array */
 	uint32_t nb_freqs;                   /**< number of available freqs */
 	FILE *f;                             /**< FD of scaling_setspeed */
@@ -311,7 +311,7 @@ power_init_for_setting_freq(struct rte_power_info *pi)
 }
 
 int
-rte_power_acpi_cpufreq_init(unsigned lcore_id)
+rte_power_acpi_cpufreq_init(unsigned int lcore_id)
 {
 	struct rte_power_info *pi;
 
@@ -419,7 +419,7 @@ power_set_governor_original(struct rte_power_info *pi)
 }
 
 int
-rte_power_acpi_cpufreq_exit(unsigned lcore_id)
+rte_power_acpi_cpufreq_exit(unsigned int lcore_id)
 {
 	struct rte_power_info *pi;
 
@@ -481,7 +481,7 @@ rte_power_acpi_cpufreq_freqs(unsigned lcore_id, uint32_t *freqs, uint32_t num)
 }
 
 uint32_t
-rte_power_acpi_cpufreq_get_freq(unsigned lcore_id)
+rte_power_acpi_cpufreq_get_freq(unsigned int lcore_id)
 {
 	if (lcore_id >= RTE_MAX_LCORE) {
 		RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
@@ -503,7 +503,7 @@ rte_power_acpi_cpufreq_set_freq(unsigned lcore_id, uint32_t index)
 }
 
 int
-rte_power_acpi_cpufreq_freq_down(unsigned lcore_id)
+rte_power_acpi_cpufreq_freq_down(unsigned int lcore_id)
 {
 	struct rte_power_info *pi;
 
@@ -521,7 +521,7 @@ rte_power_acpi_cpufreq_freq_down(unsigned lcore_id)
 }
 
 int
-rte_power_acpi_cpufreq_freq_up(unsigned lcore_id)
+rte_power_acpi_cpufreq_freq_up(unsigned int lcore_id)
 {
 	struct rte_power_info *pi;
 
@@ -539,7 +539,7 @@ rte_power_acpi_cpufreq_freq_up(unsigned lcore_id)
 }
 
 int
-rte_power_acpi_cpufreq_freq_max(unsigned lcore_id)
+rte_power_acpi_cpufreq_freq_max(unsigned int lcore_id)
 {
 	if (lcore_id >= RTE_MAX_LCORE) {
 		RTE_LOG(ERR, POWER, "Invalid lcore ID\n");
@@ -561,7 +561,7 @@ rte_power_acpi_cpufreq_freq_max(unsigned lcore_id)
 }
 
 int
-rte_power_acpi_cpufreq_freq_min(unsigned lcore_id)
+rte_power_acpi_cpufreq_freq_min(unsigned int lcore_id)
 {
 	struct rte_power_info *pi;
 
diff --git a/lib/librte_power/rte_power_kvm_vm.c b/lib/librte_power/rte_power_kvm_vm.c
index 9906062..52cac0c 100644
--- a/lib/librte_power/rte_power_kvm_vm.c
+++ b/lib/librte_power/rte_power_kvm_vm.c
@@ -46,7 +46,7 @@ static struct channel_packet pkt[CHANNEL_CMDS_MAX_VM_CHANNELS];
 
 
 int
-rte_power_kvm_vm_init(unsigned lcore_id)
+rte_power_kvm_vm_init(unsigned int lcore_id)
 {
 	if (lcore_id >= CHANNEL_CMDS_MAX_VM_CHANNELS) {
 		RTE_LOG(ERR, POWER, "Core(%u) is out of range 0...%d\n",
@@ -59,14 +59,14 @@ rte_power_kvm_vm_init(unsigned lcore_id)
 }
 
 int
-rte_power_kvm_vm_exit(unsigned lcore_id)
+rte_power_kvm_vm_exit(unsigned int lcore_id)
 {
 	guest_channel_host_disconnect(lcore_id);
 	return 0;
 }
 
 uint32_t
-rte_power_kvm_vm_freqs(__attribute__((unused)) unsigned lcore_id,
+rte_power_kvm_vm_freqs(__attribute__((unused)) unsigned int lcore_id,
 		__attribute__((unused)) uint32_t *freqs,
 		__attribute__((unused)) uint32_t num)
 {
@@ -76,7 +76,7 @@ rte_power_kvm_vm_freqs(__attribute__((unused)) unsigned lcore_id,
 }
 
 uint32_t
-rte_power_kvm_vm_get_freq(__attribute__((unused)) unsigned lcore_id)
+rte_power_kvm_vm_get_freq(__attribute__((unused)) unsigned int lcore_id)
 {
 	RTE_LOG(ERR, POWER, "rte_power_get_freq is not implemented "
 			"for Virtual Machine Power Management\n");
@@ -84,7 +84,7 @@ rte_power_kvm_vm_get_freq(__attribute__((unused)) unsigned lcore_id)
 }
 
 int
-rte_power_kvm_vm_set_freq(__attribute__((unused)) unsigned lcore_id,
+rte_power_kvm_vm_set_freq(__attribute__((unused)) unsigned int lcore_id,
 		__attribute__((unused)) uint32_t index)
 {
 	RTE_LOG(ERR, POWER, "rte_power_set_freq is not implemented "
@@ -93,7 +93,7 @@ rte_power_kvm_vm_set_freq(__attribute__((unused)) unsigned lcore_id,
 }
 
 static inline int
-send_msg(unsigned lcore_id, uint32_t scale_direction)
+send_msg(unsigned int lcore_id, uint32_t scale_direction)
 {
 	int ret;
 
@@ -112,25 +112,25 @@ send_msg(unsigned lcore_id, uint32_t scale_direction)
 }
 
 int
-rte_power_kvm_vm_freq_up(unsigned lcore_id)
+rte_power_kvm_vm_freq_up(unsigned int lcore_id)
 {
 	return send_msg(lcore_id, CPU_POWER_SCALE_UP);
 }
 
 int
-rte_power_kvm_vm_freq_down(unsigned lcore_id)
+rte_power_kvm_vm_freq_down(unsigned int lcore_id)
 {
 	return send_msg(lcore_id, CPU_POWER_SCALE_DOWN);
 }
 
 int
-rte_power_kvm_vm_freq_max(unsigned lcore_id)
+rte_power_kvm_vm_freq_max(unsigned int lcore_id)
 {
 	return send_msg(lcore_id, CPU_POWER_SCALE_MAX);
 }
 
 int
-rte_power_kvm_vm_freq_min(unsigned lcore_id)
+rte_power_kvm_vm_freq_min(unsigned int lcore_id)
 {
 	return send_msg(lcore_id, CPU_POWER_SCALE_MIN);
 }
diff --git a/lib/librte_power/rte_power_kvm_vm.h b/lib/librte_power/rte_power_kvm_vm.h
index 9af41d6..96349c5 100644
--- a/lib/librte_power/rte_power_kvm_vm.h
+++ b/lib/librte_power/rte_power_kvm_vm.h
@@ -58,7 +58,7 @@ extern "C" {
  *  - 0 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_init(unsigned lcore_id);
+int rte_power_kvm_vm_init(unsigned int lcore_id);
 
 /**
  * Exit power management on a specific lcore.
@@ -70,7 +70,7 @@ int rte_power_kvm_vm_init(unsigned lcore_id);
  *  - 0 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_exit(unsigned lcore_id);
+int rte_power_kvm_vm_exit(unsigned int lcore_id);
 
 /**
  * Get the available frequencies of a specific lcore.
@@ -86,7 +86,7 @@ int rte_power_kvm_vm_exit(unsigned lcore_id);
  * @return
  *  -ENOTSUP
  */
-uint32_t rte_power_kvm_vm_freqs(unsigned lcore_id, uint32_t *freqs,
+uint32_t rte_power_kvm_vm_freqs(unsigned int lcore_id, uint32_t *freqs,
 		uint32_t num);
 
 /**
@@ -99,7 +99,7 @@ uint32_t rte_power_kvm_vm_freqs(unsigned lcore_id, uint32_t *freqs,
  * @return
  *  -ENOTSUP
  */
-uint32_t rte_power_kvm_vm_get_freq(unsigned lcore_id);
+uint32_t rte_power_kvm_vm_get_freq(unsigned int lcore_id);
 
 /**
  * Set the new frequency for a specific lcore by indicating the index of
@@ -114,7 +114,7 @@ uint32_t rte_power_kvm_vm_get_freq(unsigned lcore_id);
  * @return
  *  -ENOTSUP
  */
-int rte_power_kvm_vm_set_freq(unsigned lcore_id, uint32_t index);
+int rte_power_kvm_vm_set_freq(unsigned int lcore_id, uint32_t index);
 
 /**
  * Scale up the frequency of a specific lcore. This request is forwarded to the
@@ -128,7 +128,7 @@ int rte_power_kvm_vm_set_freq(unsigned lcore_id, uint32_t index);
  *  - 1 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_freq_up(unsigned lcore_id);
+int rte_power_kvm_vm_freq_up(unsigned int lcore_id);
 
 /**
  * Scale down the frequency of a specific lcore according to the available
@@ -142,7 +142,7 @@ int rte_power_kvm_vm_freq_up(unsigned lcore_id);
  *  - 1 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_freq_down(unsigned lcore_id);
+int rte_power_kvm_vm_freq_down(unsigned int lcore_id);
 
 /**
  * Scale up the frequency of a specific lcore to the highest according to the
@@ -156,7 +156,7 @@ int rte_power_kvm_vm_freq_down(unsigned lcore_id);
  *  - 1 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_freq_max(unsigned lcore_id);
+int rte_power_kvm_vm_freq_max(unsigned int lcore_id);
 
 /**
  * Scale down the frequency of a specific lcore to the lowest according to the
@@ -170,7 +170,7 @@ int rte_power_kvm_vm_freq_max(unsigned lcore_id);
  *  - 1 on success.
  *  - Negative on error.
  */
-int rte_power_kvm_vm_freq_min(unsigned lcore_id);
+int rte_power_kvm_vm_freq_min(unsigned int lcore_id);
 
 /**
  * It should be protected outside of this function for threadsafe.
