nss-packages-qosmio/qca-nss-drv/patches-11.4/0026-nss-drv-add-support-for-kernel-6.12.patch

--- a/nss_core.c
+++ b/nss_core.c
@@ -35,34 +35,16 @@
 #endif
 #endif
 #include <linux/etherdevice.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0))
+#include <linux/skbuff_ref.h>
+#endif
 #include "nss_tx_rx_common.h"
 #include "nss_data_plane.h"
 
 #define NSS_CORE_JUMBO_LINEAR_BUF_SIZE 128
 
 #if (NSS_SKB_REUSE_SUPPORT == 1)
-/*
- * We have validated the skb recycling code within the NSS for the
- * following kernel versions. Before enabling the driver in new kernels,
- * the skb recycle code must be checked against Linux skb handling.
- *
- * Tested on: 3.4, 3.10, 3.14, 3.18, 4.4 and 5.4
- */
-#if (!( \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(3, 5, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(3, 11, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(5, 5, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(5, 11, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(5, 16, 0)))) || \
-(((LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(6, 14, 0))))))
-#error "Check skb recycle code in this file to match Linux version"
-#endif
-
 static atomic_t max_reuse = ATOMIC_INIT(PAGE_SIZE);
-
 #endif /* NSS_SKB_REUSE_SUPPORT */
 
 static int max_ipv4_conn = NSS_DEFAULT_NUM_CONN;
--- a/Makefile
+++ b/Makefile
@@ -543,7 +543,9 @@ endif
 ccflags-y += -I$(obj)/nss_hal/ipq50xx -DNSS_HAL_IPQ50XX_SUPPORT -DNSS_MULTI_H2N_DATA_RING_SUPPORT
 endif
 
-ccflags-y += -I$(obj)/nss_hal/include -I$(obj)/nss_data_plane/include -I$(obj)/exports -DNSS_DEBUG_LEVEL=0 -DNSS_PKT_STATS_ENABLED=1
+NSS_DEBUG_LEVEL ?= 2
+
+ccflags-y += -I$(obj)/nss_hal/include -I$(obj)/nss_data_plane/include -I$(obj)/exports -DNSS_DEBUG_LEVEL=$(NSS_DEBUG_LEVEL) -DNSS_PKT_STATS_ENABLED=1
 
 ccflags-y += -I$(obj)/nss_data_plane/hal/include
 ccflags-y += -DNSS_PM_DEBUG_LEVEL=0 -DNSS_SKB_REUSE_SUPPORT=1
@@ -579,6 +581,8 @@ qca-nss-drv-objs += \
 ccflags-y += -DNSS_FREQ_SCALE_SUPPORT=1
 endif
 
+ccflags-y += -include $(obj)/compat.h
+
 ccflags-y += $(NSS_CCFLAGS)
 
 export NSS_CCFLAGS
--- a/nss_init.c
+++ b/nss_init.c
@@ -115,10 +115,17 @@ static inline int nss_probe(struct platf
  * nss_remove()
  *	HLOS device remove callback
  */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 10, 0))
 static inline int nss_remove(struct platform_device *nss_dev)
 {
 	return nss_hal_remove(nss_dev);
 }
+#else
+static inline void nss_remove(struct platform_device *nss_dev)
+{
+	nss_hal_remove(nss_dev);
+}
+#endif
 
 #if (NSS_DT_SUPPORT == 1)
 /*
@@ -128,7 +135,6 @@ struct of_device_id nss_dt_ids[] = {
 	{ .compatible = "qcom,nss" },
 	{ .compatible = "qcom,nss0" },
 	{ .compatible = "qcom,nss1" },
-	{},
 };
 MODULE_DEVICE_TABLE(of, nss_dt_ids);
 #endif
@@ -168,7 +174,7 @@ static void nss_reset_frequency_stats_sa
  * nss_current_freq_handler()
  *	Handle Userspace Frequency Change Requests
  */
-static int nss_current_freq_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_current_freq_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret, i;
 
@@ -228,7 +234,7 @@ static int nss_current_freq_handler(stru
  * nss_auto_scale_handler()
  *	Enables or Disable Auto Scaling
  */
-static int nss_auto_scale_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_auto_scale_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -293,7 +299,7 @@ static int nss_auto_scale_handler(struct
  * nss_get_freq_table_handler()
  *	Display Support Freq and Ex how to Change.
  */
-static int nss_get_freq_table_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_get_freq_table_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret, i;
 
@@ -322,7 +328,7 @@ static int nss_get_freq_table_handler(st
  * nss_get_average_inst_handler()
  *	Display AVG Inst Per Ms.
  */
-static int nss_get_average_inst_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_get_average_inst_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -344,7 +350,7 @@ static int nss_get_average_inst_handler(
  * nss_debug_handler()
  *	Enable NSS debug output
  */
-static int nss_debug_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_debug_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -364,7 +370,7 @@ static int nss_debug_handler(struct ctl_
  * nss_coredump_handler()
  *	Send Signal To Coredump NSS Cores
  */
-static int nss_coredump_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_coredump_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_ctx_instance *nss_ctx = &nss_top_main.nss[NSS_CORE_0];
 	int ret;
@@ -389,7 +395,7 @@ static int nss_coredump_handler(struct c
  * nss_jumbo_mru_handler()
  *	Sysctl to modify nss_jumbo_mru
  */
-static int nss_jumbo_mru_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_jumbo_mru_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -410,7 +416,7 @@ static int nss_jumbo_mru_handler(struct
  *	Sysctl to modify nss_paged_mode.
  */
 
-static int nss_paged_mode_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_paged_mode_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -432,7 +438,7 @@ static int nss_paged_mode_handler(struct
  * nss_get_min_reuse_handler()
  *	Sysctl to get min reuse sizes
  */
-static int nss_get_min_reuse_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_get_min_reuse_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	struct nss_ctx_instance *nss_ctx = NULL;
@@ -459,7 +465,7 @@ static int nss_get_min_reuse_handler(str
  * nss_max_reuse_handler()
  *	Sysctl to modify nss_max_reuse
  */
-static int nss_max_reuse_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_max_reuse_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 
@@ -494,8 +500,7 @@ static struct ctl_table nss_skb_reuse_ta
 		.maxlen			= sizeof(int),
 		.mode			= 0644,
 		.proc_handler	= &nss_max_reuse_handler,
-	},
-	{ }
+	}
 };
 #endif
 
@@ -531,8 +536,7 @@ static struct ctl_table nss_freq_table[]
 		.maxlen			= sizeof(int),
 		.mode			= 0644,
 		.proc_handler	= &nss_get_average_inst_handler,
-	},
-	{ }
+	}
 };
 #endif
 
@@ -580,8 +584,7 @@ static struct ctl_table nss_general_tabl
 		.maxlen                 = sizeof(int),
 		.mode                   = 0644,
 		.proc_handler           = &nss_paged_mode_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_clock_header;
--- a/nss_stats.c
+++ b/nss_stats.c
@@ -70,7 +70,7 @@ static size_t nss_stats_spacing(uint64_t
  * nss_stats_nonzero_handler()
  *	Handler to take nonzero stats print configuration.
  */
-static int nss_stats_nonzero_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_stats_nonzero_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
@@ -84,8 +84,7 @@ static struct ctl_table nss_stats_table[
 		.maxlen			= sizeof(int),
 		.mode			= 0644,
 		.proc_handler		= &nss_stats_nonzero_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_stats_header;
@@ -228,7 +227,7 @@ size_t nss_stats_banner(char *lbuf, size
 		size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "<");
 	}
 
-	strlcpy(node_upr, node, NSS_STATS_NODE_NAME_MAX);
+	strscpy(node_upr, node, NSS_STATS_NODE_NAME_MAX + 1);
 	for (i = 0; node_upr[i] != '\0' && i < NSS_STATS_NODE_NAME_MAX; i++) {
 		node_upr[i] = toupper(node_upr[i]);
 	}
@@ -293,7 +292,7 @@ size_t nss_stats_print(char *node, char
 			continue;
 		}
 
-		strlcpy(stats_string, stats_info[i].stats_name, NSS_STATS_MAX_STR_LENGTH);
+		strscpy(stats_string, stats_info[i].stats_name, NSS_STATS_MAX_STR_LENGTH);
 
 		/*
 		 * Converting  uppercase to lower case.
@@ -302,7 +301,7 @@ size_t nss_stats_print(char *node, char
 			stats_string[j] = tolower(stats_string[j]);
 		}
 
-		strlcpy(node_lwr, node, NSS_STATS_NODE_NAME_MAX);
+		strscpy(node_lwr, node, NSS_STATS_NODE_NAME_MAX + 1);
 		for (j = 0; node_lwr[j] != '\0' && j < NSS_STATS_NODE_NAME_MAX; j++) {
 			node_lwr[j] = tolower(node_lwr[j]);
 		}
--- a/nss_tunipip6_stats.c
+++ b/nss_tunipip6_stats.c
@@ -16,6 +16,10 @@
  **************************************************************************
  */
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+#include <linux/vmalloc.h>
+#endif
+
 #include "nss_core.h"
 #include "nss_tunipip6.h"
 #include "nss_stats.h"
--- /dev/null
+++ b/compat.h
@@ -0,0 +1,14 @@
+// compat.h
+#ifndef _COMPAT_H
+#define _COMPAT_H
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+#include <linux/vmalloc.h>
+#define compat_const const
+#else
+#define compat_const
+#endif
+
+#endif /* _COMPAT_H */
--- a/nss_c2c_tx.c
+++ b/nss_c2c_tx.c
@@ -284,7 +284,7 @@ EXPORT_SYMBOL(nss_c2c_tx_msg_init);
  * nss_c2c_tx_performance_test_handler()
  *	Handles the performance test.
  */
-static int nss_c2c_tx_performance_test_handler(struct ctl_table *ctl, int write,
+static int nss_c2c_tx_performance_test_handler(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -330,8 +330,7 @@ static struct ctl_table nss_c2c_tx_table
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= &nss_c2c_tx_performance_test_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_c2c_tx_header;
--- a/nss_dma.c
+++ b/nss_dma.c
@@ -284,7 +284,7 @@ EXPORT_SYMBOL(nss_dma_get_context);
  * nss_dma_test_handler()
  *	Handles the performance test.
  */
-static int nss_dma_test_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_dma_test_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_ctx_instance *nss_ctx = nss_dma_get_context();
 	int cur_state = test_cfg.run.val;
@@ -374,8 +374,7 @@ static struct ctl_table nss_dma_table[]
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_dma_header;
--- a/nss_ipv4.c
+++ b/nss_ipv4.c
@@ -599,7 +599,7 @@ void nss_ipv4_free_conn_tables(void)
  * nss_ipv4_accel_mode_cfg_handler()
  *	Configure acceleration mode for IPv4
  */
-static int nss_ipv4_accel_mode_cfg_handler(struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ipv4_accel_mode_cfg_handler(compat_const struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[0];
@@ -643,7 +643,7 @@ static int nss_ipv4_accel_mode_cfg_handl
  * nss_ipv4_dscp_map_cfg_handler()
  *	Sysctl handler for dscp/pri mappings.
  */
-static int nss_ipv4_dscp_map_cfg_handler(struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ipv4_dscp_map_cfg_handler(compat_const struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[0];
@@ -708,8 +708,7 @@ static struct ctl_table nss_ipv4_table[]
 		.maxlen		= sizeof(struct nss_dscp_map_entry),
 		.mode		= 0644,
 		.proc_handler	= &nss_ipv4_dscp_map_cfg_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_ipv4_header;
--- a/nss_ipv6.c
+++ b/nss_ipv6.c
@@ -595,7 +595,7 @@ void nss_ipv6_free_conn_tables(void)
  * nss_ipv6_accel_mode_cfg_handler()
  *	Configure acceleration mode for IPv6
  */
-static int nss_ipv6_accel_mode_cfg_handler(struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ipv6_accel_mode_cfg_handler(compat_const struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[0];
@@ -639,7 +639,7 @@ static int nss_ipv6_accel_mode_cfg_handl
  * nss_ipv6_dscp_map_cfg_handler()
  *	Sysctl handler for dscp/pri mappings.
  */
-static int nss_ipv6_dscp_map_cfg_handler(struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ipv6_dscp_map_cfg_handler(compat_const struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[0];
@@ -703,8 +703,7 @@ static struct ctl_table nss_ipv6_table[]
 		.maxlen			= sizeof(struct nss_dscp_map_entry),
 		.mode			= 0644,
 		.proc_handler		= &nss_ipv6_dscp_map_cfg_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_ipv6_header;
--- a/nss_log.c
+++ b/nss_log.c
@@ -524,7 +524,7 @@ fail:
  * nss_logbuffer_handler()
  *	Enable NSS debug output
  */
-int nss_logbuffer_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+int nss_logbuffer_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	int core_status;
--- a/nss_n2h.c
+++ b/nss_n2h.c
@@ -344,7 +344,7 @@ static int nss_n2h_get_paged_payload_inf
  * nss_n2h_set_empty_buf_pool()
  *	Sets empty pool buffer
  */
-static int nss_n2h_set_empty_buf_pool(struct ctl_table *ctl, int write,
+static int nss_n2h_set_empty_buf_pool(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos,
 				nss_ptr_t core_num, int *new_val)
@@ -446,7 +446,7 @@ failure:
  * nss_n2h_set_empty_paged_pool_buf()
  *	Sets empty paged pool buffer
  */
-static int nss_n2h_set_empty_paged_pool_buf(struct ctl_table *ctl, int write,
+static int nss_n2h_set_empty_paged_pool_buf(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos,
 				nss_ptr_t core_num, int *new_val)
@@ -548,7 +548,7 @@ failure:
  * nss_n2h_set_water_mark()
  *	Sets water mark for N2H SOS
  */
-static int nss_n2h_set_water_mark(struct ctl_table *ctl, int write,
+static int nss_n2h_set_water_mark(compat_const struct ctl_table *ctl, int write,
 					void __user *buffer,
 					size_t *lenp, loff_t *ppos,
 					uint32_t core_num, int *low, int *high)
@@ -662,7 +662,7 @@ failure:
  * nss_n2h_set_paged_water_mark()
  *	Sets water mark for paged pool N2H SOS
  */
-static int nss_n2h_set_paged_water_mark(struct ctl_table *ctl, int write,
+static int nss_n2h_set_paged_water_mark(compat_const struct ctl_table *ctl, int write,
 					void __user *buffer,
 					size_t *lenp, loff_t *ppos,
 					uint32_t core_num, int *low, int *high)
@@ -776,7 +776,7 @@ failure:
  * nss_n2h_cfg_wifi_pool()
  *	Sets number of wifi payloads to adjust high water mark for N2H SoS
  */
-static int nss_n2h_cfg_wifi_pool(struct ctl_table *ctl, int write,
+static int nss_n2h_cfg_wifi_pool(compat_const struct ctl_table *ctl, int write,
 					void __user *buffer,
 					size_t *lenp, loff_t *ppos,
 					int *payloads)
@@ -873,7 +873,7 @@ failure:
  * nss_n2h_empty_pool_buf_core1_handler()
  *	Sets the number of empty buffer for core 1
  */
-static int nss_n2h_empty_pool_buf_cfg_core1_handler(struct ctl_table *ctl,
+static int nss_n2h_empty_pool_buf_cfg_core1_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -885,7 +885,7 @@ static int nss_n2h_empty_pool_buf_cfg_co
  * nss_n2h_empty_pool_buf_core0_handler()
  *	Sets the number of empty buffer for core 0
  */
-static int nss_n2h_empty_pool_buf_cfg_core0_handler(struct ctl_table *ctl,
+static int nss_n2h_empty_pool_buf_cfg_core0_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -897,7 +897,7 @@ static int nss_n2h_empty_pool_buf_cfg_co
  * nss_n2h_empty_paged_pool_buf_cfg_core1_handler()
  *	Sets the number of empty paged buffer for core 1
  */
-static int nss_n2h_empty_paged_pool_buf_cfg_core1_handler(struct ctl_table *ctl,
+static int nss_n2h_empty_paged_pool_buf_cfg_core1_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -909,7 +909,7 @@ static int nss_n2h_empty_paged_pool_buf_
  * nss_n2h_empty_paged_pool_buf_cfg_core0_handler()
  *	Sets the number of empty paged buffer for core 0
  */
-static int nss_n2h_empty_paged_pool_buf_cfg_core0_handler(struct ctl_table *ctl,
+static int nss_n2h_empty_paged_pool_buf_cfg_core0_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -921,7 +921,7 @@ static int nss_n2h_empty_paged_pool_buf_
  * nss_n2h_water_mark_core1_handler()
  *	Sets water mark for core 1
  */
-static int nss_n2h_water_mark_core1_handler(struct ctl_table *ctl,
+static int nss_n2h_water_mark_core1_handler(compat_const struct ctl_table *ctl,
 			int write, void __user *buffer,
 			size_t *lenp, loff_t *ppos)
 {
@@ -934,7 +934,7 @@ static int nss_n2h_water_mark_core1_hand
  * nss_n2h_water_mark_core0_handler()
  *	Sets water mark for core 0
  */
-static int nss_n2h_water_mark_core0_handler(struct ctl_table *ctl,
+static int nss_n2h_water_mark_core0_handler(compat_const struct ctl_table *ctl,
 			int write, void __user *buffer,
 			size_t *lenp, loff_t *ppos)
 {
@@ -947,7 +947,7 @@ static int nss_n2h_water_mark_core0_hand
  * nss_n2h_paged_water_mark_core1_handler()
  *	Sets paged water mark for core 1
  */
-static int nss_n2h_paged_water_mark_core1_handler(struct ctl_table *ctl,
+static int nss_n2h_paged_water_mark_core1_handler(compat_const struct ctl_table *ctl,
 			int write, void __user *buffer,
 			size_t *lenp, loff_t *ppos)
 {
@@ -960,7 +960,7 @@ static int nss_n2h_paged_water_mark_core
  * nss_n2h_paged_water_mark_core0_handler()
  *	Sets paged water mark for core 0
  */
-static int nss_n2h_paged_water_mark_core0_handler(struct ctl_table *ctl,
+static int nss_n2h_paged_water_mark_core0_handler(compat_const struct ctl_table *ctl,
 			int write, void __user *buffer,
 			size_t *lenp, loff_t *ppos)
 {
@@ -973,7 +973,7 @@ static int nss_n2h_paged_water_mark_core
  * nss_n2h_wifi_payloads_handler()
  *	Sets number of wifi payloads
  */
-static int nss_n2h_wifi_payloads_handler(struct ctl_table *ctl,
+static int nss_n2h_wifi_payloads_handler(compat_const struct ctl_table *ctl,
 			int write, void __user *buffer,
 			size_t *lenp, loff_t *ppos)
 {
@@ -1250,7 +1250,7 @@ failure:
  * nss_mitigation_handler()
  * Enable NSS MITIGATION
  */
-static int nss_n2h_mitigationcfg_core0_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_n2h_mitigationcfg_core0_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[NSS_CORE_0];
@@ -1281,7 +1281,7 @@ static int nss_n2h_mitigationcfg_core0_h
  * nss_mitigation_handler()
  * Enable NSS MITIGATION
  */
-static int nss_n2h_mitigationcfg_core1_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_n2h_mitigationcfg_core1_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[NSS_CORE_1];
@@ -1312,7 +1312,7 @@ static int nss_n2h_mitigationcfg_core1_h
  * nss_buf_handler()
  *	Add extra NSS bufs from host memory
  */
-static int nss_n2h_buf_cfg_core0_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_n2h_buf_cfg_core0_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[NSS_CORE_0];
@@ -1351,7 +1351,7 @@ static int nss_n2h_buf_cfg_core0_handler
  * nss_n2h_buf_handler()
  *	Add extra NSS bufs from host memory
  */
-static int nss_n2h_buf_cfg_core1_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_n2h_buf_cfg_core1_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx = &nss_top->nss[NSS_CORE_1];
@@ -1404,7 +1404,7 @@ static void nss_n2h_queue_limit_callback
  * nss_n2h_set_queue_limit_sync()
  *	Sets the n2h queue size limit synchronously.
  */
-static int nss_n2h_set_queue_limit_sync(struct ctl_table *ctl, int write, void __user *buffer,
+static int nss_n2h_set_queue_limit_sync(compat_const struct ctl_table *ctl, int write, void __user *buffer,
 					size_t *lenp, loff_t *ppos, uint32_t core_id)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -1481,7 +1481,7 @@ static int nss_n2h_set_queue_limit_sync(
  * nss_n2h_queue_limit_core0_handler()
  *	Sets the n2h queue size limit for core0
  */
-static int nss_n2h_queue_limit_core0_handler(struct ctl_table *ctl,
+static int nss_n2h_queue_limit_core0_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -1493,7 +1493,7 @@ static int nss_n2h_queue_limit_core0_han
  * nss_n2h_queue_limit_core1_handler()
  *	Sets the n2h queue size limit for core1
  */
-static int nss_n2h_queue_limit_core1_handler(struct ctl_table *ctl,
+static int nss_n2h_queue_limit_core1_handler(compat_const struct ctl_table *ctl,
 				int write, void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -1571,7 +1571,7 @@ static nss_tx_status_t nss_n2h_host_bp_c
  * nss_n2h_host_bp_cfg_handler()
  *	Enable n2h back pressure.
  */
-static int nss_n2h_host_bp_cfg_handler(struct ctl_table *ctl, int write,
+static int nss_n2h_host_bp_cfg_handler(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos, uint32_t core_id)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -1609,7 +1609,7 @@ static int nss_n2h_host_bp_cfg_handler(s
  * nss_n2h_host_bp_cfg_core0_handler()
  *	Enable n2h back pressure in core 0.
  */
-static int nss_n2h_host_bp_cfg_core0_handler(struct ctl_table *ctl, int write,
+static int nss_n2h_host_bp_cfg_core0_handler(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	return nss_n2h_host_bp_cfg_handler(ctl, write, buffer, lenp, ppos, NSS_CORE_0);
@@ -1619,7 +1619,7 @@ static int nss_n2h_host_bp_cfg_core0_han
  * nss_n2h_host_bp_cfg_core1_handler()
  *	Enable n2h back pressure in core 1.
  */
-static int nss_n2h_host_bp_cfg_core1_handler(struct ctl_table *ctl, int write,
+static int nss_n2h_host_bp_cfg_core1_handler(compat_const struct ctl_table *ctl, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	return nss_n2h_host_bp_cfg_handler(ctl, write, buffer, lenp, ppos, NSS_CORE_1);
@@ -1702,9 +1702,7 @@ static struct ctl_table nss_n2h_table_si
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= &nss_n2h_host_bp_cfg_core0_handler,
-	},
-
-	{ }
+	}
 };
 
 static struct ctl_table nss_n2h_table_multi_core[] = {
@@ -1855,8 +1853,7 @@ static struct ctl_table nss_n2h_table_mu
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= &nss_n2h_host_bp_cfg_core1_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_n2h_header;
--- a/nss_ppe_vp.c
+++ b/nss_ppe_vp.c
@@ -215,7 +215,7 @@ static void nss_ppe_vp_callback(void *ap
  * Since ath0 has only one type i.e. ath0 is NSS_DYNAMIC_INTERFACE_TYPE_VAP, the above command can be rewritten as
  * echo ath0 > /proc/sys/nss/ppe_vp/create => Here 6 can be ignored.
  */
-static nss_if_num_t nss_ppe_vp_parse_vp_cmd(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static nss_if_num_t nss_ppe_vp_parse_vp_cmd(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int32_t if_num;
 	struct net_device *dev;
@@ -693,7 +693,7 @@ static void nss_ppe_vp_handler(struct ns
  * nss_ppe_vp_destroy_handler()
  *	PPE VP destroy handler.
  */
-static int nss_ppe_vp_destroy_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ppe_vp_destroy_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_ctx_instance *nss_ctx = nss_ppe_vp_get_context();
 	int32_t if_num;
@@ -730,7 +730,7 @@ static int nss_ppe_vp_destroy_handler(st
  * nss_ppe_vp_create_handler()
  *	PPE VP create handler.
  */
-static int nss_ppe_vp_create_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+static int nss_ppe_vp_create_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int32_t if_num;
 	struct nss_ctx_instance *nss_ctx = nss_ppe_vp_get_context();
@@ -779,8 +779,7 @@ static struct ctl_table nss_ppe_vp_table
 		.maxlen         = sizeof(nss_ppe_vp_cmd),
 		.mode           = 0644,
 		.proc_handler   = &nss_ppe_vp_destroy_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_ppe_vp_procfs_header;
--- a/nss_pppoe.c
+++ b/nss_pppoe.c
@@ -203,7 +203,7 @@ static void nss_pppoe_handler(struct nss
  * nss_pppoe_br_accel_mode_handler()
  *	Enable/disable pppoe bridge acceleration in NSS
  */
-int nss_pppoe_br_accel_mode_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
+int nss_pppoe_br_accel_mode_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_ctx_instance *nss_ctx = nss_pppoe_get_context();
 	struct nss_pppoe_msg npm;
@@ -349,8 +349,7 @@ static struct ctl_table nss_pppoe_table[
 		.maxlen                 = sizeof(int),
 		.mode                   = 0644,
 		.proc_handler           = &nss_pppoe_br_accel_mode_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_pppoe_header;
--- a/nss_project.c
+++ b/nss_project.c
@@ -229,7 +229,7 @@ static void nss_project_msg_handler(stru
  * Uses proc_dointvec to process data. For a write operation, also sends worker
  * thread stats enable messages containing the new value to each NSS core.
  */
-static int nss_project_wt_stats_handler(struct ctl_table *ctl, int write,
+static int nss_project_wt_stats_handler(compat_const struct ctl_table *ctl, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
@@ -275,8 +275,7 @@ static struct ctl_table nss_project_tabl
 		.maxlen			= sizeof(int),
 		.mode			= 0644,
 		.proc_handler		= &nss_project_wt_stats_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_project_header;
--- a/nss_rps.c
+++ b/nss_rps.c
@@ -401,7 +401,7 @@ static nss_tx_status_t nss_rps_pri_map_c
  * nss_rps_cfg_handler()
  *	Enable NSS RPS.
  */
-static int nss_rps_cfg_handler(struct ctl_table *ctl, int write,
+static int nss_rps_cfg_handler(compat_const struct ctl_table *ctl, int write,
 				void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -452,7 +452,7 @@ static int nss_rps_cfg_handler(struct ct
  * nss_rps_hash_bitmap_cfg_handler()
  *	Configure NSS rps_hash_bitmap
  */
-static int nss_rps_hash_bitmap_cfg_handler(struct ctl_table *ctl, int write,
+static int nss_rps_hash_bitmap_cfg_handler(compat_const struct ctl_table *ctl, int write,
 				void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -515,7 +515,7 @@ static int nss_rps_hash_bitmap_cfg_handl
 /* nss_rps_pri_map_cfg_handler()
  *	Configure NSS rps_pri_map
  */
-static int nss_rps_pri_map_cfg_handler(struct ctl_table *ctl, int write,
+static int nss_rps_pri_map_cfg_handler(compat_const struct ctl_table *ctl, int write,
 				void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
@@ -568,8 +568,7 @@ static struct ctl_table nss_rps_table[]
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= &nss_rps_pri_map_cfg_handler,
-	},
-	{ }
+	}
 };
 
 static struct ctl_table_header *nss_rps_header;
--- a/nss_core.h
+++ b/nss_core.h
@@ -990,7 +990,7 @@ extern void nss_stats_clean(void);
  */
 extern void nss_log_init(void);
 extern bool nss_debug_log_buffer_alloc(uint8_t nss_id, uint32_t nentry);
-extern int nss_logbuffer_handler(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos);
+extern int nss_logbuffer_handler(compat_const struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos);
 
 /*
  * APIs to set jumbo_mru & paged_mode
--- a/nss_dscp_map.h
+++ b/nss_dscp_map.h
@@ -46,7 +46,7 @@ struct nss_dscp_map_parse {
  * nss_dscp_map_print()
  *	Sysctl handler for printing dscp/pri mapping.
  */
-static int nss_dscp_map_print(struct ctl_table *ctl, void *buffer, size_t *lenp,
+static int nss_dscp_map_print(compat_const struct ctl_table *ctl, void *buffer, size_t *lenp,
 				loff_t *ppos, struct nss_dscp_map_entry *mapping)
 {
 	char *r_buf;
@@ -115,7 +115,7 @@ static int nss_dscp_map_print(struct ctl
  * nss_dscp_map_parse()
  *	Sysctl handler for dscp/pri mappings.
  */
-static int nss_dscp_map_parse(struct ctl_table *ctl, void *buffer, size_t *lenp,
+static int nss_dscp_map_parse(compat_const struct ctl_table *ctl, void *buffer, size_t *lenp,
 				loff_t *ppos, struct nss_dscp_map_parse *out)
 {
 	int count;
--- a/nss_n2h_stats.c
+++ b/nss_n2h_stats.c
@@ -43,6 +43,7 @@ static ssize_t nss_n2h_stats_read(struct
 	size_t size_wr = 0;
 	ssize_t bytes_read = 0;
 	uint64_t *stats_shadow;
+	char n2h_tag[7];
 
 	char *lbuf = kzalloc(size_al, GFP_KERNEL);
 	if (unlikely(lbuf == NULL)) {
@@ -66,7 +67,8 @@ static ssize_t nss_n2h_stats_read(struct
 			stats_shadow[i] = nss_n2h_stats[core][i];
 		}
 		spin_unlock_bh(&nss_top_main.stats_lock);
-		size_wr += nss_stats_banner(lbuf, size_wr, size_al, "n2h", core);
+		snprintf(n2h_tag, 7, "N2H %d", core);
+		size_wr += nss_stats_banner(lbuf, size_wr, size_al, n2h_tag, NSS_STATS_SINGLE_CORE);
 		size_wr += nss_stats_print("n2h", NULL, NSS_STATS_SINGLE_INSTANCE
 						, nss_n2h_strings_stats
 						, stats_shadow