[PATCH] batman-adv: Use string choice helper to print booleans

[PATCH] batman-adv: Use string choice helper to print booleans

[Sven Eckelmann]

The commit ea4692c75e1c ("lib/string_helpers: Consolidate string helpers
implementation") introduced common helpers to print string representations
of boolean helpers. These are supposed to be used instead of open coded
versions.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
---
 compat-include/linux/string_choices.h  | 32 ++++++++++++++++++++++++++++++++
 net/batman-adv/bat_iv_ogm.c            |  4 ++--
 net/batman-adv/bridge_loop_avoidance.c |  8 ++++----
 3 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/compat-include/linux/string_choices.h b/compat-include/linux/string_choices.h
new file mode 100644
index 00000000..9a6aba7f
--- /dev/null
+++ b/compat-include/linux/string_choices.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * This file contains macros for maintaining compatibility with older versions
+ * of the Linux kernel.
+ */
+
+#ifndef _NET_BATMAN_ADV_COMPAT_LINUX_STRING_CHOICES_H_
+#define _NET_BATMAN_ADV_COMPAT_LINUX_STRING_CHOICES_H_
+
+#include <linux/version.h>
+#if LINUX_VERSION_IS_GEQ(6, 5, 0)
+#include_next <linux/string_choices.h>
+#elif LINUX_VERSION_IS_GEQ(5, 18, 0)
+#include <linux/string_helpers.h>
+#else
+
+static inline const char *str_yes_no(bool v)
+{
+	return v ? "yes" : "no";
+}
+
+static inline const char *str_on_off(bool v)
+{
+	return v ? "on" : "off";
+}
+
+#endif
+
+#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_STRING_CHOICES_H_ */
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 74b49c35..07ae5dd1 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -36,6 +36,7 @@
 #include <linux/spinlock.h>
 #include <linux/stddef.h>
 #include <linux/string.h>
+#include <linux/string_choices.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
 #include <net/genetlink.h>
@@ -371,8 +372,7 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
 			   batadv_ogm_packet->orig,
 			   ntohl(batadv_ogm_packet->seqno),
 			   batadv_ogm_packet->tq, batadv_ogm_packet->ttl,
-			   ((batadv_ogm_packet->flags & BATADV_DIRECTLINK) ?
-			    "on" : "off"),
+			   str_on_off(batadv_ogm_packet->flags & BATADV_DIRECTLINK),
 			   hard_iface->net_dev->name,
 			   hard_iface->net_dev->dev_addr);
 
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 5f46ca3d..449faf5a 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -33,6 +33,7 @@
 #include <linux/sprintf.h>
 #include <linux/stddef.h>
 #include <linux/string.h>
+#include <linux/string_choices.h>
 #include <linux/workqueue.h>
 #include <net/arp.h>
 #include <net/genetlink.h>
@@ -1946,16 +1947,15 @@ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
 	claim = batadv_claim_hash_find(bat_priv, &search_claim);
 
 	if (!claim) {
+		bool local = batadv_is_my_client(bat_priv, ethhdr->h_source, vid);
+
 		/* possible optimization: race for a claim */
 		/* No claim exists yet, claim it for us!
 		 */
 
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "%s(): Unclaimed MAC %pM found. Claim it. Local: %s\n",
-			   __func__, ethhdr->h_source,
-			   batadv_is_my_client(bat_priv,
-					       ethhdr->h_source, vid) ?
-			   "yes" : "no");
+			   __func__, ethhdr->h_source, str_yes_no(local));
 		batadv_handle_claim(bat_priv, primary_if,
 				    primary_if->net_dev->dev_addr,
 				    ethhdr->h_source, vid);

---
base-commit: 6398f63b783812c10554e65d4a5dc453d69697f7
change-id: 20241006-string_choices-c3acb808c3a9

Best regards,
-- 
Sven Eckelmann <sven@narfation.org>