tools: ynl: remove the libmnl dependency

We don't use libmnl any more.
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20240227223032.1835527-15-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tools/net/ynl/lib/ynl-priv.h

@@ -2,8 +2,8 @@
 #ifndef __YNL_C_PRIV_H
 #define __YNL_C_PRIV_H 1
 
+#include <stdbool.h>
 #include <stddef.h>
-#include <libmnl/libmnl.h>
 #include <linux/types.h>
 
 struct ynl_parse_arg;
@@ -12,8 +12,6 @@ struct ynl_parse_arg;
  * YNL internals / low level stuff
  */
 
-/* Generic mnl helper code */
-
 enum ynl_policy_type {
 	YNL_PT_REJECT = 1,
 	YNL_PT_IGNORE,

tools/net/ynl/lib/ynl.c

@@ -6,7 +6,6 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <linux/types.h>
-#include <libmnl/libmnl.h>
 #include <linux/genetlink.h>
 #include <sys/socket.h>
 

tools/net/ynl/samples/Makefile

@@ -9,7 +9,7 @@ ifeq ("$(DEBUG)","1")
   CFLAGS += -g -fsanitize=address -fsanitize=leak -static-libasan
 endif
 
-LDLIBS=-lmnl ../lib/ynl.a ../generated/protos.a
+LDLIBS=../lib/ynl.a ../generated/protos.a
 
 SRCS=$(wildcard *.c)
 BINS=$(patsubst %.c,%,${SRCS})

tools/net/ynl/ynl-gen-c.py

@@ -2677,7 +2677,6 @@ def main():
 
     if args.mode == "user":
         if not args.header:
-            cw.p("#include <libmnl/libmnl.h>")
             cw.p("#include <linux/genetlink.h>")
             cw.nl()
             for one in args.user_header: