diff --git a/drivers/common/cnxk/roc_sso.c b/drivers/common/cnxk/roc_sso.c
index 9920d0c604..8f27c004a7 100644
--- a/drivers/common/cnxk/roc_sso.c
+++ b/drivers/common/cnxk/roc_sso.c
@@ -327,7 +327,6 @@ roc_sso_hws_stats_get(struct roc_sso *roc_sso, uint8_t hws,
 	struct mbox *mbox;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	mbox = mbox_get(dev->mbox);
 	req_rsp = (struct sso_hws_stats *)mbox_alloc_msg_sso_hws_get_stats(
 		mbox);
@@ -354,7 +353,6 @@ roc_sso_hws_stats_get(struct roc_sso *roc_sso, uint8_t hws,
 	stats->arbitration = req_rsp->arbitration;
 fail:
 	mbox_put(mbox);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -368,7 +366,6 @@ roc_sso_hwgrp_stats_get(struct roc_sso *roc_sso, uint8_t hwgrp,
 	struct mbox *mbox;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	mbox = mbox_get(dev->mbox);
 	req_rsp = (struct sso_grp_stats *)mbox_alloc_msg_sso_grp_get_stats(
 		mbox);
@@ -403,7 +400,6 @@ roc_sso_hwgrp_stats_get(struct roc_sso *roc_sso, uint8_t hwgrp,

 fail:
 	mbox_put(mbox);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -427,7 +423,6 @@ roc_sso_hwgrp_qos_config(struct roc_sso *roc_sso, struct roc_sso_hwgrp_qos *qos,
 	struct mbox *mbox;
 	int i, rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	mbox = mbox_get(dev->mbox);
 	for (i = 0; i < nb_qos; i++) {
 		uint8_t iaq_prcnt = qos[i].iaq_prcnt;
@@ -461,7 +456,6 @@ roc_sso_hwgrp_qos_config(struct roc_sso *roc_sso, struct roc_sso_hwgrp_qos *qos,
 		rc = -EIO;
 fail:
 	mbox_put(mbox);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -562,11 +556,9 @@ roc_sso_hwgrp_init_xaq_aura(struct roc_sso *roc_sso, uint32_t nb_xae)
 	struct dev *dev = &sso->dev;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_hwgrp_init_xaq_aura(dev, &roc_sso->xaq, nb_xae,
 				     roc_sso->xae_waes, roc_sso->xaq_buf_size,
 				     roc_sso->nb_hwgrp);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -600,9 +592,7 @@ roc_sso_hwgrp_free_xaq_aura(struct roc_sso *roc_sso, uint16_t nb_hwgrp)
 	struct dev *dev = &sso->dev;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_hwgrp_free_xaq_aura(dev, &roc_sso->xaq, nb_hwgrp);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -639,9 +629,7 @@ roc_sso_hwgrp_alloc_xaq(struct roc_sso *roc_sso, uint32_t npa_aura_id,
 	struct dev *dev = &sso->dev;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_hwgrp_alloc_xaq(dev, npa_aura_id, hwgrps);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -677,9 +665,7 @@ roc_sso_hwgrp_release_xaq(struct roc_sso *roc_sso, uint16_t hwgrps)
 	struct dev *dev = &sso->dev;
 	int rc;

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_hwgrp_release_xaq(dev, hwgrps);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -693,7 +679,6 @@ roc_sso_hwgrp_set_priority(struct roc_sso *roc_sso, uint16_t hwgrp,
 	struct mbox *mbox;
 	int rc = -ENOSPC;

-	plt_spinlock_lock(&sso->mbox_lock);
 	mbox = mbox_get(dev->mbox);
 	req = mbox_alloc_msg_sso_grp_set_priority(mbox);
 	if (req == NULL)
@@ -709,14 +694,12 @@ roc_sso_hwgrp_set_priority(struct roc_sso *roc_sso, uint16_t hwgrp,
 		goto fail;
 	}
 	mbox_put(mbox);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	plt_sso_dbg("HWGRP %d weight %d affinity %d priority %d", hwgrp, weight,
 		    affinity, priority);

 	return 0;
 fail:
 	mbox_put(mbox);
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -732,7 +715,6 @@ roc_sso_rsrc_init(struct roc_sso *roc_sso, uint8_t nb_hws, uint16_t nb_hwgrp)
 	if (!nb_hws || roc_sso->max_hws < nb_hws)
 		return -ENOENT;

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_rsrc_attach(roc_sso, SSO_LF_TYPE_HWS, nb_hws);
 	if (rc < 0) {
 		plt_err("Unable to attach SSO HWS LFs");
@@ -775,7 +757,6 @@ roc_sso_rsrc_init(struct roc_sso *roc_sso, uint8_t nb_hws, uint16_t nb_hwgrp)
 		goto sso_msix_fail;
 	}

-	plt_spinlock_unlock(&sso->mbox_lock);
 	roc_sso->nb_hwgrp = nb_hwgrp;
 	roc_sso->nb_hws = nb_hws;

@@ -789,7 +770,6 @@ roc_sso_rsrc_init(struct roc_sso *roc_sso, uint8_t nb_hws, uint16_t nb_hwgrp)
 hwgrp_atch_fail:
 	sso_rsrc_detach(roc_sso, SSO_LF_TYPE_HWS);
 fail:
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

@@ -811,7 +791,6 @@ roc_sso_rsrc_fini(struct roc_sso *roc_sso)

 	roc_sso->nb_hwgrp = 0;
 	roc_sso->nb_hws = 0;
-	plt_spinlock_unlock(&sso->mbox_lock);
 }

 int
@@ -830,7 +809,6 @@ roc_sso_dev_init(struct roc_sso *roc_sso)
 	sso = roc_sso_to_sso_priv(roc_sso);
 	memset(sso, 0, sizeof(*sso));
 	pci_dev = roc_sso->pci_dev;
-	plt_spinlock_init(&sso->mbox_lock);

 	rc = dev_init(&sso->dev, pci_dev);
 	if (rc < 0) {
@@ -838,7 +816,6 @@ roc_sso_dev_init(struct roc_sso *roc_sso)
 		goto fail;
 	}

-	plt_spinlock_lock(&sso->mbox_lock);
 	rc = sso_rsrc_get(roc_sso);
 	if (rc < 0) {
 		plt_err("Failed to get SSO resources");
@@ -880,7 +857,6 @@ roc_sso_dev_init(struct roc_sso *roc_sso)
 	sso->pci_dev = pci_dev;
 	sso->dev.drv_inited = true;
 	roc_sso->lmt_base = sso->dev.lmt_base;
-	plt_spinlock_unlock(&sso->mbox_lock);

 	return 0;
 link_mem_free:
@@ -888,7 +864,6 @@ roc_sso_dev_init(struct roc_sso *roc_sso)
 rsrc_fail:
 	rc |= dev_fini(&sso->dev, pci_dev);
 fail:
-	plt_spinlock_unlock(&sso->mbox_lock);
 	return rc;
 }

diff --git a/drivers/common/cnxk/roc_sso_priv.h b/drivers/common/cnxk/roc_sso_priv.h
index 674e4e0a39..09729d4f62 100644
--- a/drivers/common/cnxk/roc_sso_priv.h
+++ b/drivers/common/cnxk/roc_sso_priv.h
@@ -22,7 +22,6 @@ struct sso {
 	/* SSO link mapping. */
 	struct plt_bitmap **link_map;
 	void *link_map_mem;
-	plt_spinlock_t mbox_lock;
 } __plt_cache_aligned;

 enum sso_err_status {
