Remove redundant and unnecessary comments.

Author: jfb8856606

lib/ff_config.c

@@ -1025,10 +1025,6 @@ ini_parse_handler(void* user, const char* section, const char* name,
     } else if (MATCH("kni", "udp_port")) {
         pconfig->kni.udp_port= strdup(value);
     } else if (MATCH("stack", "kernel_coexist")) {
-        /* Kernel-stack coexistence switch: "1"/"on"/"true"/"yes" enable it,
-         * anything else (incl. "0"/"off") keeps it disabled. When enabled, a
-         * socket created with SOCK_KERNEL additionally uses the host kernel
-         * stack alongside F-Stack; default per-fd semantics stay F-Stack. */
         pconfig->stack.kernel_coexist =
             (strcasecmp(value, "1") == 0 || strcasecmp(value, "on") == 0 ||
              strcasecmp(value, "true") == 0 || strcasecmp(value, "yes") == 0)
@@ -1364,8 +1360,6 @@ ff_default_config(struct ff_config *cfg)
     cfg->dpdk.promiscuous = 1;
     cfg->dpdk.pkt_tx_delay = BURST_TX_DRAIN_US;
 
-    /* kernel-stack coexistence disabled by default (pure F-Stack).
-     * memset already zeroes it; set explicitly for clarity. */
     cfg->stack.kernel_coexist = 0;
 
     /* KNI ratelimit default disabled */

lib/ff_config.h

@@ -319,14 +319,6 @@ struct ff_config {
     } kni;
 
     struct {
-        /* Kernel-stack coexistence capability switch (per process):
-         *   0 = disabled (default): pure F-Stack, every socket uses the
-         *       F-Stack user-space stack.
-         *   1 = enabled: a socket created with an explicit SOCK_KERNEL marker
-         *       (and without SOCK_FSTACK) additionally uses the host Linux
-         *       kernel stack, coexisting with F-Stack in the same process.
-         * The default per-fd semantics stay F-Stack; this switch never makes
-         * the whole process default to the kernel stack. */
         int kernel_coexist;
     } stack;
 
@@ -362,18 +354,6 @@ int ff_load_config(int argc, char * const argv[]);
  * (config.ini [stack] kernel_coexist=1). */
 int ff_kernel_coexist_enabled(void);
 
-/*
- * Free every heap-allocated field referenced by ff_global_cfg (port_cfgs,
- * vlan_cfgs, vdev_cfgs, bond_cfgs, rss_check_cfgs, freebsd.boot/sysctl
- * linked lists, dpdk_argv[], filename, etc.) and zero the structure so a
- * subsequent ff_load_config() call starts from a clean slate.
- *
- * Registered via atexit() at the end of the first successful
- * ff_load_config(), and also invoked at the start of any later
- * ff_load_config() to make the loader idempotent (FU-S2-2-CFG-UNLOAD).
- *
- * Safe to call multiple times; calling on an already-zeroed cfg is a no-op.
- */
 void ff_unload_config(void);
 
 #ifdef __cplusplus